/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread/singleton.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 10:48:06,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 10:48:06,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 10:48:06,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 10:48:06,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 10:48:06,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 10:48:06,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 10:48:06,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 10:48:06,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 10:48:06,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 10:48:06,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 10:48:06,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 10:48:06,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 10:48:06,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 10:48:06,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 10:48:06,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 10:48:06,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 10:48:06,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 10:48:06,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 10:48:06,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 10:48:06,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 10:48:06,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 10:48:06,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 10:48:06,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 10:48:06,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 10:48:06,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 10:48:06,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 10:48:06,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 10:48:06,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 10:48:06,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 10:48:06,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 10:48:06,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 10:48:06,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 10:48:06,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 10:48:06,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 10:48:06,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 10:48:06,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 10:48:06,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 10:48:06,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 10:48:06,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 10:48:06,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 10:48:06,472 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 10:48:06,495 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 10:48:06,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 10:48:06,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 10:48:06,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 10:48:06,497 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 10:48:06,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 10:48:06,498 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 10:48:06,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 10:48:06,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 10:48:06,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 10:48:06,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 10:48:06,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 10:48:06,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 10:48:06,499 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 10:48:06,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 10:48:06,499 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 10:48:06,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 10:48:06,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 10:48:06,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 10:48:06,500 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 10:48:06,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 10:48:06,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 10:48:06,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 10:48:06,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 10:48:06,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 10:48:06,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 10:48:06,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 10:48:06,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 10:48:06,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 10:48:06,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 10:48:06,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 10:48:06,809 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 10:48:06,812 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 10:48:06,814 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 10:48:06,814 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 10:48:06,815 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton.i [2020-10-16 10:48:06,883 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/197e72c4d/f304c6c6ddc4493eb2fa4dc9fd1a43a8/FLAG6da547157 [2020-10-16 10:48:07,475 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 10:48:07,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread/singleton.i [2020-10-16 10:48:07,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/197e72c4d/f304c6c6ddc4493eb2fa4dc9fd1a43a8/FLAG6da547157 [2020-10-16 10:48:07,759 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/197e72c4d/f304c6c6ddc4493eb2fa4dc9fd1a43a8 [2020-10-16 10:48:07,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 10:48:07,771 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 10:48:07,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 10:48:07,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 10:48:07,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 10:48:07,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:48:07" (1/1) ... [2020-10-16 10:48:07,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2024e51d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:07, skipping insertion in model container [2020-10-16 10:48:07,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:48:07" (1/1) ... [2020-10-16 10:48:07,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 10:48:07,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 10:48:08,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 10:48:08,507 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 10:48:08,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 10:48:08,758 INFO L208 MainTranslator]: Completed translation [2020-10-16 10:48:08,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:08 WrapperNode [2020-10-16 10:48:08,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 10:48:08,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 10:48:08,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 10:48:08,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 10:48:08,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:08" (1/1) ... [2020-10-16 10:48:08,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:08" (1/1) ... [2020-10-16 10:48:08,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 10:48:08,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 10:48:08,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 10:48:08,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 10:48:08,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:08" (1/1) ... [2020-10-16 10:48:08,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:08" (1/1) ... [2020-10-16 10:48:08,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:08" (1/1) ... [2020-10-16 10:48:08,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:08" (1/1) ... [2020-10-16 10:48:08,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:08" (1/1) ... [2020-10-16 10:48:08,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:08" (1/1) ... [2020-10-16 10:48:08,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:08" (1/1) ... [2020-10-16 10:48:08,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 10:48:08,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 10:48:08,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 10:48:08,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 10:48:08,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:08" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 10:48:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 10:48:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 10:48:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 10:48:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2020-10-16 10:48:08,929 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2020-10-16 10:48:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-16 10:48:08,929 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-16 10:48:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-16 10:48:08,929 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-16 10:48:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-10-16 10:48:08,930 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-10-16 10:48:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 10:48:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-16 10:48:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 10:48:08,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 10:48:08,932 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 10:48:09,335 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 10:48:09,335 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-16 10:48:09,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:48:09 BoogieIcfgContainer [2020-10-16 10:48:09,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 10:48:09,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 10:48:09,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 10:48:09,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 10:48:09,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:48:07" (1/3) ... [2020-10-16 10:48:09,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f51c104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:48:09, skipping insertion in model container [2020-10-16 10:48:09,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:08" (2/3) ... [2020-10-16 10:48:09,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f51c104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:48:09, skipping insertion in model container [2020-10-16 10:48:09,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:48:09" (3/3) ... [2020-10-16 10:48:09,352 INFO L111 eAbstractionObserver]: Analyzing ICFG singleton.i [2020-10-16 10:48:09,365 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 10:48:09,365 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 10:48:09,375 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 10:48:09,376 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 10:48:09,459 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,459 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,459 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,460 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,460 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,460 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,461 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,461 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,478 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,478 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,479 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,479 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,479 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,480 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,480 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,480 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,480 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,481 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,481 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,481 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,482 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,482 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,482 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,483 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,483 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,484 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,484 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,486 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,486 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,486 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,486 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,486 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,487 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,488 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,488 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,488 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,488 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,488 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,489 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,489 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,489 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,489 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,489 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,490 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,491 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,492 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,492 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,494 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,494 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,494 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,494 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,495 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,495 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,495 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,496 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,496 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,496 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,497 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,497 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,497 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,497 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,497 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,497 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,498 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,498 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,498 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,498 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,499 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,499 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,499 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,499 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,499 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,500 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,500 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,500 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,500 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,501 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,501 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,501 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,501 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,502 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,502 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,502 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,502 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,503 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,503 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,503 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,503 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,503 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,504 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,504 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,504 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,504 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,504 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,505 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,505 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,505 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,505 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,506 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,506 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,510 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,510 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,510 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,511 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,517 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,517 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,518 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,518 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,520 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,520 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,521 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,521 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,523 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,523 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,523 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,524 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,524 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,524 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,524 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,524 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,525 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,525 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,525 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,525 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,525 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,526 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,526 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,526 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,526 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,526 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,527 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,527 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,527 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,527 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,527 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,527 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,530 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,531 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,531 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,532 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,534 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,534 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,534 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,535 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,537 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,537 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,538 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,540 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,541 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,541 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,541 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,543 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,543 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,543 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,544 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,546 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,546 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,546 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,546 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,548 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,549 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,549 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,549 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:09,670 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2020-10-16 10:48:09,684 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-16 10:48:09,707 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 10:48:09,707 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 10:48:09,707 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 10:48:09,707 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 10:48:09,707 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 10:48:09,708 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 10:48:09,708 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 10:48:09,708 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 10:48:09,728 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 10:48:09,731 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 172 places, 243 transitions, 866 flow [2020-10-16 10:48:09,734 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 172 places, 243 transitions, 866 flow [2020-10-16 10:48:09,737 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 172 places, 243 transitions, 866 flow [2020-10-16 10:48:09,839 INFO L129 PetriNetUnfolder]: 61/264 cut-off events. [2020-10-16 10:48:09,840 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2020-10-16 10:48:09,850 INFO L80 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 264 events. 61/264 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 750 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 353. Up to 24 conditions per place. [2020-10-16 10:48:09,863 INFO L117 LiptonReduction]: Number of co-enabled transitions 4038 [2020-10-16 10:48:11,864 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-16 10:48:12,004 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-16 10:48:12,259 INFO L132 LiptonReduction]: Checked pairs total: 47722 [2020-10-16 10:48:12,260 INFO L134 LiptonReduction]: Total number of compositions: 76 [2020-10-16 10:48:12,267 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 173 transitions, 726 flow [2020-10-16 10:48:12,878 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 3502 states. [2020-10-16 10:48:12,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3502 states. [2020-10-16 10:48:12,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 10:48:12,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:12,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:12,890 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:12,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:12,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1069688068, now seen corresponding path program 1 times [2020-10-16 10:48:12,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:12,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27533697] [2020-10-16 10:48:12,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:13,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:13,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27533697] [2020-10-16 10:48:13,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:13,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 10:48:13,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698433605] [2020-10-16 10:48:13,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 10:48:13,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:13,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 10:48:13,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 10:48:13,213 INFO L87 Difference]: Start difference. First operand 3502 states. Second operand 6 states. [2020-10-16 10:48:13,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:13,594 INFO L93 Difference]: Finished difference Result 4760 states and 19900 transitions. [2020-10-16 10:48:13,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 10:48:13,596 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-10-16 10:48:13,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:13,665 INFO L225 Difference]: With dead ends: 4760 [2020-10-16 10:48:13,665 INFO L226 Difference]: Without dead ends: 4272 [2020-10-16 10:48:13,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 10:48:13,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4272 states. [2020-10-16 10:48:13,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4272 to 3018. [2020-10-16 10:48:13,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3018 states. [2020-10-16 10:48:13,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3018 states to 3018 states and 12272 transitions. [2020-10-16 10:48:13,998 INFO L78 Accepts]: Start accepts. Automaton has 3018 states and 12272 transitions. Word has length 9 [2020-10-16 10:48:13,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:13,999 INFO L481 AbstractCegarLoop]: Abstraction has 3018 states and 12272 transitions. [2020-10-16 10:48:13,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 10:48:13,999 INFO L276 IsEmpty]: Start isEmpty. Operand 3018 states and 12272 transitions. [2020-10-16 10:48:14,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 10:48:14,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:14,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:14,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 10:48:14,001 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:14,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:14,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1263032832, now seen corresponding path program 2 times [2020-10-16 10:48:14,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:14,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982230478] [2020-10-16 10:48:14,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:14,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:14,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982230478] [2020-10-16 10:48:14,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:14,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 10:48:14,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677148960] [2020-10-16 10:48:14,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 10:48:14,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:14,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 10:48:14,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 10:48:14,161 INFO L87 Difference]: Start difference. First operand 3018 states and 12272 transitions. Second operand 6 states. [2020-10-16 10:48:14,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:14,628 INFO L93 Difference]: Finished difference Result 5518 states and 23821 transitions. [2020-10-16 10:48:14,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 10:48:14,628 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-10-16 10:48:14,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:14,702 INFO L225 Difference]: With dead ends: 5518 [2020-10-16 10:48:14,702 INFO L226 Difference]: Without dead ends: 5518 [2020-10-16 10:48:14,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-16 10:48:14,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5518 states. [2020-10-16 10:48:14,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5518 to 3008. [2020-10-16 10:48:14,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3008 states. [2020-10-16 10:48:14,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 12255 transitions. [2020-10-16 10:48:14,907 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 12255 transitions. Word has length 9 [2020-10-16 10:48:14,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:14,907 INFO L481 AbstractCegarLoop]: Abstraction has 3008 states and 12255 transitions. [2020-10-16 10:48:14,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 10:48:14,908 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 12255 transitions. [2020-10-16 10:48:14,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 10:48:14,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:14,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:14,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 10:48:14,909 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:14,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:14,910 INFO L82 PathProgramCache]: Analyzing trace with hash -690496787, now seen corresponding path program 1 times [2020-10-16 10:48:14,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:14,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432980836] [2020-10-16 10:48:14,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:14,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:14,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432980836] [2020-10-16 10:48:14,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:14,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 10:48:14,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488309141] [2020-10-16 10:48:14,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:48:14,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:14,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:48:14,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:48:14,991 INFO L87 Difference]: Start difference. First operand 3008 states and 12255 transitions. Second operand 3 states. [2020-10-16 10:48:15,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:15,128 INFO L93 Difference]: Finished difference Result 4848 states and 19273 transitions. [2020-10-16 10:48:15,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:48:15,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-16 10:48:15,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:15,194 INFO L225 Difference]: With dead ends: 4848 [2020-10-16 10:48:15,195 INFO L226 Difference]: Without dead ends: 3558 [2020-10-16 10:48:15,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:48:15,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2020-10-16 10:48:15,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 3181. [2020-10-16 10:48:15,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3181 states. [2020-10-16 10:48:15,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 12171 transitions. [2020-10-16 10:48:15,376 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 12171 transitions. Word has length 16 [2020-10-16 10:48:15,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:15,377 INFO L481 AbstractCegarLoop]: Abstraction has 3181 states and 12171 transitions. [2020-10-16 10:48:15,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:48:15,377 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 12171 transitions. [2020-10-16 10:48:15,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 10:48:15,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:15,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:15,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 10:48:15,381 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:15,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:15,381 INFO L82 PathProgramCache]: Analyzing trace with hash 69435085, now seen corresponding path program 1 times [2020-10-16 10:48:15,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:15,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328203408] [2020-10-16 10:48:15,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:15,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:15,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328203408] [2020-10-16 10:48:15,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:15,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 10:48:15,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903419183] [2020-10-16 10:48:15,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 10:48:15,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:15,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 10:48:15,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 10:48:15,553 INFO L87 Difference]: Start difference. First operand 3181 states and 12171 transitions. Second operand 6 states. [2020-10-16 10:48:15,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:15,850 INFO L93 Difference]: Finished difference Result 4417 states and 17212 transitions. [2020-10-16 10:48:15,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 10:48:15,850 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-16 10:48:15,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:15,879 INFO L225 Difference]: With dead ends: 4417 [2020-10-16 10:48:15,879 INFO L226 Difference]: Without dead ends: 4393 [2020-10-16 10:48:15,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-16 10:48:15,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2020-10-16 10:48:16,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 3588. [2020-10-16 10:48:16,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3588 states. [2020-10-16 10:48:16,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3588 states to 3588 states and 14085 transitions. [2020-10-16 10:48:16,072 INFO L78 Accepts]: Start accepts. Automaton has 3588 states and 14085 transitions. Word has length 17 [2020-10-16 10:48:16,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:16,072 INFO L481 AbstractCegarLoop]: Abstraction has 3588 states and 14085 transitions. [2020-10-16 10:48:16,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 10:48:16,073 INFO L276 IsEmpty]: Start isEmpty. Operand 3588 states and 14085 transitions. [2020-10-16 10:48:16,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 10:48:16,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:16,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:16,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 10:48:16,075 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:16,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:16,075 INFO L82 PathProgramCache]: Analyzing trace with hash -954298863, now seen corresponding path program 2 times [2020-10-16 10:48:16,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:16,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964485454] [2020-10-16 10:48:16,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:16,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:16,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964485454] [2020-10-16 10:48:16,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:16,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 10:48:16,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292620982] [2020-10-16 10:48:16,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 10:48:16,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:16,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 10:48:16,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 10:48:16,163 INFO L87 Difference]: Start difference. First operand 3588 states and 14085 transitions. Second operand 6 states. [2020-10-16 10:48:16,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:16,299 INFO L93 Difference]: Finished difference Result 4024 states and 15445 transitions. [2020-10-16 10:48:16,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 10:48:16,300 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-16 10:48:16,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:16,320 INFO L225 Difference]: With dead ends: 4024 [2020-10-16 10:48:16,320 INFO L226 Difference]: Without dead ends: 4024 [2020-10-16 10:48:16,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 10:48:16,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2020-10-16 10:48:16,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 3573. [2020-10-16 10:48:16,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3573 states. [2020-10-16 10:48:16,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 14045 transitions. [2020-10-16 10:48:16,465 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 14045 transitions. Word has length 17 [2020-10-16 10:48:16,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:16,465 INFO L481 AbstractCegarLoop]: Abstraction has 3573 states and 14045 transitions. [2020-10-16 10:48:16,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 10:48:16,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 14045 transitions. [2020-10-16 10:48:16,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 10:48:16,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:16,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:16,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 10:48:16,470 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:16,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:16,471 INFO L82 PathProgramCache]: Analyzing trace with hash -687500069, now seen corresponding path program 1 times [2020-10-16 10:48:16,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:16,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129859149] [2020-10-16 10:48:16,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:16,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:16,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129859149] [2020-10-16 10:48:16,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:16,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 10:48:16,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270072651] [2020-10-16 10:48:16,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 10:48:16,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:16,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 10:48:16,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 10:48:16,573 INFO L87 Difference]: Start difference. First operand 3573 states and 14045 transitions. Second operand 6 states. [2020-10-16 10:48:16,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:16,783 INFO L93 Difference]: Finished difference Result 4225 states and 16225 transitions. [2020-10-16 10:48:16,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 10:48:16,783 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-16 10:48:16,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:16,804 INFO L225 Difference]: With dead ends: 4225 [2020-10-16 10:48:16,804 INFO L226 Difference]: Without dead ends: 4129 [2020-10-16 10:48:16,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-16 10:48:16,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4129 states. [2020-10-16 10:48:17,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4129 to 3713. [2020-10-16 10:48:17,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3713 states. [2020-10-16 10:48:17,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3713 states to 3713 states and 14455 transitions. [2020-10-16 10:48:17,097 INFO L78 Accepts]: Start accepts. Automaton has 3713 states and 14455 transitions. Word has length 18 [2020-10-16 10:48:17,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:17,097 INFO L481 AbstractCegarLoop]: Abstraction has 3713 states and 14455 transitions. [2020-10-16 10:48:17,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 10:48:17,097 INFO L276 IsEmpty]: Start isEmpty. Operand 3713 states and 14455 transitions. [2020-10-16 10:48:17,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 10:48:17,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:17,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:17,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 10:48:17,100 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:17,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:17,100 INFO L82 PathProgramCache]: Analyzing trace with hash -454402421, now seen corresponding path program 2 times [2020-10-16 10:48:17,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:17,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709012697] [2020-10-16 10:48:17,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:17,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:17,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709012697] [2020-10-16 10:48:17,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:17,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 10:48:17,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67101251] [2020-10-16 10:48:17,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 10:48:17,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:17,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 10:48:17,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 10:48:17,238 INFO L87 Difference]: Start difference. First operand 3713 states and 14455 transitions. Second operand 7 states. [2020-10-16 10:48:17,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:17,579 INFO L93 Difference]: Finished difference Result 4979 states and 19779 transitions. [2020-10-16 10:48:17,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 10:48:17,580 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-16 10:48:17,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:17,603 INFO L225 Difference]: With dead ends: 4979 [2020-10-16 10:48:17,603 INFO L226 Difference]: Without dead ends: 4905 [2020-10-16 10:48:17,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-16 10:48:17,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4905 states. [2020-10-16 10:48:17,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4905 to 4131. [2020-10-16 10:48:17,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4131 states. [2020-10-16 10:48:17,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 16620 transitions. [2020-10-16 10:48:17,780 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 16620 transitions. Word has length 18 [2020-10-16 10:48:17,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:17,781 INFO L481 AbstractCegarLoop]: Abstraction has 4131 states and 16620 transitions. [2020-10-16 10:48:17,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 10:48:17,781 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 16620 transitions. [2020-10-16 10:48:17,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 10:48:17,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:17,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:17,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 10:48:17,783 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:17,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:17,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1254406997, now seen corresponding path program 3 times [2020-10-16 10:48:17,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:17,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529876330] [2020-10-16 10:48:17,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:17,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:17,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529876330] [2020-10-16 10:48:17,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:17,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 10:48:17,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160715255] [2020-10-16 10:48:17,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 10:48:17,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:17,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 10:48:17,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 10:48:17,900 INFO L87 Difference]: Start difference. First operand 4131 states and 16620 transitions. Second operand 8 states. [2020-10-16 10:48:18,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:18,286 INFO L93 Difference]: Finished difference Result 6735 states and 27904 transitions. [2020-10-16 10:48:18,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 10:48:18,286 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-10-16 10:48:18,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:18,449 INFO L225 Difference]: With dead ends: 6735 [2020-10-16 10:48:18,449 INFO L226 Difference]: Without dead ends: 6661 [2020-10-16 10:48:18,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-16 10:48:18,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6661 states. [2020-10-16 10:48:18,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6661 to 4129. [2020-10-16 10:48:18,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4129 states. [2020-10-16 10:48:18,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4129 states to 4129 states and 16616 transitions. [2020-10-16 10:48:18,623 INFO L78 Accepts]: Start accepts. Automaton has 4129 states and 16616 transitions. Word has length 18 [2020-10-16 10:48:18,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:18,624 INFO L481 AbstractCegarLoop]: Abstraction has 4129 states and 16616 transitions. [2020-10-16 10:48:18,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 10:48:18,624 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states and 16616 transitions. [2020-10-16 10:48:18,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 10:48:18,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:18,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:18,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 10:48:18,626 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:18,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:18,627 INFO L82 PathProgramCache]: Analyzing trace with hash -164095139, now seen corresponding path program 4 times [2020-10-16 10:48:18,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:18,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410284349] [2020-10-16 10:48:18,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:18,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:18,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410284349] [2020-10-16 10:48:18,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:18,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 10:48:18,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34608821] [2020-10-16 10:48:18,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 10:48:18,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:18,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 10:48:18,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-16 10:48:18,795 INFO L87 Difference]: Start difference. First operand 4129 states and 16616 transitions. Second operand 10 states. [2020-10-16 10:48:19,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:19,336 INFO L93 Difference]: Finished difference Result 6639 states and 26238 transitions. [2020-10-16 10:48:19,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 10:48:19,337 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-10-16 10:48:19,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:19,367 INFO L225 Difference]: With dead ends: 6639 [2020-10-16 10:48:19,367 INFO L226 Difference]: Without dead ends: 6491 [2020-10-16 10:48:19,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-16 10:48:19,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6491 states. [2020-10-16 10:48:19,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6491 to 3873. [2020-10-16 10:48:19,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3873 states. [2020-10-16 10:48:19,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3873 states to 3873 states and 15364 transitions. [2020-10-16 10:48:19,532 INFO L78 Accepts]: Start accepts. Automaton has 3873 states and 15364 transitions. Word has length 18 [2020-10-16 10:48:19,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:19,535 INFO L481 AbstractCegarLoop]: Abstraction has 3873 states and 15364 transitions. [2020-10-16 10:48:19,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 10:48:19,535 INFO L276 IsEmpty]: Start isEmpty. Operand 3873 states and 15364 transitions. [2020-10-16 10:48:19,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 10:48:19,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:19,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:19,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 10:48:19,538 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:19,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:19,538 INFO L82 PathProgramCache]: Analyzing trace with hash 2041625758, now seen corresponding path program 1 times [2020-10-16 10:48:19,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:19,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087226490] [2020-10-16 10:48:19,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:19,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:19,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087226490] [2020-10-16 10:48:19,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:19,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 10:48:19,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883565176] [2020-10-16 10:48:19,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 10:48:19,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:19,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 10:48:19,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 10:48:19,653 INFO L87 Difference]: Start difference. First operand 3873 states and 15364 transitions. Second operand 7 states. [2020-10-16 10:48:19,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:19,805 INFO L93 Difference]: Finished difference Result 4264 states and 16502 transitions. [2020-10-16 10:48:19,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 10:48:19,806 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-16 10:48:19,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:19,827 INFO L225 Difference]: With dead ends: 4264 [2020-10-16 10:48:19,828 INFO L226 Difference]: Without dead ends: 4264 [2020-10-16 10:48:19,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-16 10:48:19,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4264 states. [2020-10-16 10:48:20,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4264 to 3841. [2020-10-16 10:48:20,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3841 states. [2020-10-16 10:48:20,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3841 states to 3841 states and 15250 transitions. [2020-10-16 10:48:20,051 INFO L78 Accepts]: Start accepts. Automaton has 3841 states and 15250 transitions. Word has length 19 [2020-10-16 10:48:20,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:20,052 INFO L481 AbstractCegarLoop]: Abstraction has 3841 states and 15250 transitions. [2020-10-16 10:48:20,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 10:48:20,052 INFO L276 IsEmpty]: Start isEmpty. Operand 3841 states and 15250 transitions. [2020-10-16 10:48:20,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 10:48:20,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:20,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:20,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 10:48:20,055 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:20,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:20,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1134272272, now seen corresponding path program 1 times [2020-10-16 10:48:20,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:20,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024467743] [2020-10-16 10:48:20,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:20,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:20,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024467743] [2020-10-16 10:48:20,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:20,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 10:48:20,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547792293] [2020-10-16 10:48:20,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 10:48:20,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:20,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 10:48:20,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-16 10:48:20,226 INFO L87 Difference]: Start difference. First operand 3841 states and 15250 transitions. Second operand 9 states. [2020-10-16 10:48:20,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:20,599 INFO L93 Difference]: Finished difference Result 5256 states and 20905 transitions. [2020-10-16 10:48:20,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 10:48:20,599 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-16 10:48:20,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:20,631 INFO L225 Difference]: With dead ends: 5256 [2020-10-16 10:48:20,631 INFO L226 Difference]: Without dead ends: 5210 [2020-10-16 10:48:20,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-10-16 10:48:20,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5210 states. [2020-10-16 10:48:20,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5210 to 3994. [2020-10-16 10:48:20,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3994 states. [2020-10-16 10:48:20,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3994 states to 3994 states and 15976 transitions. [2020-10-16 10:48:20,788 INFO L78 Accepts]: Start accepts. Automaton has 3994 states and 15976 transitions. Word has length 20 [2020-10-16 10:48:20,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:20,789 INFO L481 AbstractCegarLoop]: Abstraction has 3994 states and 15976 transitions. [2020-10-16 10:48:20,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 10:48:20,789 INFO L276 IsEmpty]: Start isEmpty. Operand 3994 states and 15976 transitions. [2020-10-16 10:48:20,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 10:48:20,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:20,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:20,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 10:48:20,793 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:20,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:20,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1058647793, now seen corresponding path program 1 times [2020-10-16 10:48:20,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:20,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732449663] [2020-10-16 10:48:20,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:20,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:20,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732449663] [2020-10-16 10:48:20,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:20,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 10:48:20,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749496668] [2020-10-16 10:48:20,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 10:48:20,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:20,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 10:48:20,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-16 10:48:20,976 INFO L87 Difference]: Start difference. First operand 3994 states and 15976 transitions. Second operand 9 states. [2020-10-16 10:48:21,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:21,337 INFO L93 Difference]: Finished difference Result 5328 states and 21486 transitions. [2020-10-16 10:48:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 10:48:21,338 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-16 10:48:21,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:21,363 INFO L225 Difference]: With dead ends: 5328 [2020-10-16 10:48:21,363 INFO L226 Difference]: Without dead ends: 5282 [2020-10-16 10:48:21,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-16 10:48:21,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5282 states. [2020-10-16 10:48:21,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5282 to 3840. [2020-10-16 10:48:21,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3840 states. [2020-10-16 10:48:21,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3840 states to 3840 states and 15247 transitions. [2020-10-16 10:48:21,500 INFO L78 Accepts]: Start accepts. Automaton has 3840 states and 15247 transitions. Word has length 20 [2020-10-16 10:48:21,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:21,501 INFO L481 AbstractCegarLoop]: Abstraction has 3840 states and 15247 transitions. [2020-10-16 10:48:21,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 10:48:21,501 INFO L276 IsEmpty]: Start isEmpty. Operand 3840 states and 15247 transitions. [2020-10-16 10:48:21,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 10:48:21,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:21,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:21,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 10:48:21,504 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:21,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:21,504 INFO L82 PathProgramCache]: Analyzing trace with hash 2045819536, now seen corresponding path program 2 times [2020-10-16 10:48:21,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:21,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468090128] [2020-10-16 10:48:21,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:21,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:21,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468090128] [2020-10-16 10:48:21,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:21,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 10:48:21,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798477150] [2020-10-16 10:48:21,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 10:48:21,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:21,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 10:48:21,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-16 10:48:21,757 INFO L87 Difference]: Start difference. First operand 3840 states and 15247 transitions. Second operand 10 states. [2020-10-16 10:48:22,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:22,235 INFO L93 Difference]: Finished difference Result 5284 states and 20663 transitions. [2020-10-16 10:48:22,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 10:48:22,235 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-10-16 10:48:22,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:22,256 INFO L225 Difference]: With dead ends: 5284 [2020-10-16 10:48:22,256 INFO L226 Difference]: Without dead ends: 5192 [2020-10-16 10:48:22,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-10-16 10:48:22,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5192 states. [2020-10-16 10:48:22,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5192 to 3734. [2020-10-16 10:48:22,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3734 states. [2020-10-16 10:48:22,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3734 states to 3734 states and 14462 transitions. [2020-10-16 10:48:22,389 INFO L78 Accepts]: Start accepts. Automaton has 3734 states and 14462 transitions. Word has length 20 [2020-10-16 10:48:22,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:22,389 INFO L481 AbstractCegarLoop]: Abstraction has 3734 states and 14462 transitions. [2020-10-16 10:48:22,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 10:48:22,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3734 states and 14462 transitions. [2020-10-16 10:48:22,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 10:48:22,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:22,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:22,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 10:48:22,393 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:22,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:22,393 INFO L82 PathProgramCache]: Analyzing trace with hash 258643217, now seen corresponding path program 2 times [2020-10-16 10:48:22,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:22,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546004125] [2020-10-16 10:48:22,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:22,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:22,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546004125] [2020-10-16 10:48:22,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:22,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 10:48:22,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637895870] [2020-10-16 10:48:22,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 10:48:22,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:22,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 10:48:22,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-16 10:48:22,530 INFO L87 Difference]: Start difference. First operand 3734 states and 14462 transitions. Second operand 10 states. [2020-10-16 10:48:23,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:23,026 INFO L93 Difference]: Finished difference Result 6322 states and 24832 transitions. [2020-10-16 10:48:23,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 10:48:23,026 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-10-16 10:48:23,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:23,049 INFO L225 Difference]: With dead ends: 6322 [2020-10-16 10:48:23,049 INFO L226 Difference]: Without dead ends: 6276 [2020-10-16 10:48:23,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2020-10-16 10:48:23,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6276 states. [2020-10-16 10:48:23,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6276 to 3733. [2020-10-16 10:48:23,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3733 states. [2020-10-16 10:48:23,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3733 states to 3733 states and 14461 transitions. [2020-10-16 10:48:23,194 INFO L78 Accepts]: Start accepts. Automaton has 3733 states and 14461 transitions. Word has length 20 [2020-10-16 10:48:23,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:23,195 INFO L481 AbstractCegarLoop]: Abstraction has 3733 states and 14461 transitions. [2020-10-16 10:48:23,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 10:48:23,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3733 states and 14461 transitions. [2020-10-16 10:48:23,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 10:48:23,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:23,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:23,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-16 10:48:23,201 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:23,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:23,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1348955075, now seen corresponding path program 3 times [2020-10-16 10:48:23,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:23,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60137582] [2020-10-16 10:48:23,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:23,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:23,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60137582] [2020-10-16 10:48:23,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:23,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 10:48:23,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99054399] [2020-10-16 10:48:23,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 10:48:23,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:23,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 10:48:23,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-16 10:48:23,439 INFO L87 Difference]: Start difference. First operand 3733 states and 14461 transitions. Second operand 11 states. [2020-10-16 10:48:24,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:24,606 INFO L93 Difference]: Finished difference Result 4743 states and 18376 transitions. [2020-10-16 10:48:24,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 10:48:24,607 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2020-10-16 10:48:24,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:24,624 INFO L225 Difference]: With dead ends: 4743 [2020-10-16 10:48:24,625 INFO L226 Difference]: Without dead ends: 4709 [2020-10-16 10:48:24,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-10-16 10:48:24,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4709 states. [2020-10-16 10:48:24,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4709 to 3733. [2020-10-16 10:48:24,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3733 states. [2020-10-16 10:48:24,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3733 states to 3733 states and 14461 transitions. [2020-10-16 10:48:24,752 INFO L78 Accepts]: Start accepts. Automaton has 3733 states and 14461 transitions. Word has length 20 [2020-10-16 10:48:24,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:24,752 INFO L481 AbstractCegarLoop]: Abstraction has 3733 states and 14461 transitions. [2020-10-16 10:48:24,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 10:48:24,753 INFO L276 IsEmpty]: Start isEmpty. Operand 3733 states and 14461 transitions. [2020-10-16 10:48:24,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 10:48:24,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:24,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:24,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 10:48:24,756 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:24,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:24,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1331080475, now seen corresponding path program 4 times [2020-10-16 10:48:24,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:24,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517347466] [2020-10-16 10:48:24,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:24,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:24,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517347466] [2020-10-16 10:48:24,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:24,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 10:48:24,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590788020] [2020-10-16 10:48:24,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 10:48:24,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:24,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 10:48:24,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-16 10:48:24,929 INFO L87 Difference]: Start difference. First operand 3733 states and 14461 transitions. Second operand 10 states. [2020-10-16 10:48:25,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:25,314 INFO L93 Difference]: Finished difference Result 4987 states and 19433 transitions. [2020-10-16 10:48:25,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 10:48:25,315 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-10-16 10:48:25,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:25,328 INFO L225 Difference]: With dead ends: 4987 [2020-10-16 10:48:25,328 INFO L226 Difference]: Without dead ends: 4941 [2020-10-16 10:48:25,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2020-10-16 10:48:25,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4941 states. [2020-10-16 10:48:25,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4941 to 3727. [2020-10-16 10:48:25,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3727 states. [2020-10-16 10:48:25,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 14449 transitions. [2020-10-16 10:48:25,454 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 14449 transitions. Word has length 20 [2020-10-16 10:48:25,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:25,454 INFO L481 AbstractCegarLoop]: Abstraction has 3727 states and 14449 transitions. [2020-10-16 10:48:25,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 10:48:25,454 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 14449 transitions. [2020-10-16 10:48:25,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 10:48:25,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:25,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:25,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-16 10:48:25,457 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:25,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:25,458 INFO L82 PathProgramCache]: Analyzing trace with hash 657525156, now seen corresponding path program 3 times [2020-10-16 10:48:25,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:25,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064395610] [2020-10-16 10:48:25,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:25,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:25,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064395610] [2020-10-16 10:48:25,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:25,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 10:48:25,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920460118] [2020-10-16 10:48:25,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 10:48:25,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:25,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 10:48:25,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 10:48:25,519 INFO L87 Difference]: Start difference. First operand 3727 states and 14449 transitions. Second operand 7 states. [2020-10-16 10:48:25,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:25,833 INFO L93 Difference]: Finished difference Result 5325 states and 20419 transitions. [2020-10-16 10:48:25,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 10:48:25,834 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-16 10:48:25,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:25,855 INFO L225 Difference]: With dead ends: 5325 [2020-10-16 10:48:25,855 INFO L226 Difference]: Without dead ends: 5279 [2020-10-16 10:48:25,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-16 10:48:25,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5279 states. [2020-10-16 10:48:25,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5279 to 2948. [2020-10-16 10:48:25,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2948 states. [2020-10-16 10:48:26,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 10967 transitions. [2020-10-16 10:48:26,003 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 10967 transitions. Word has length 20 [2020-10-16 10:48:26,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:26,003 INFO L481 AbstractCegarLoop]: Abstraction has 2948 states and 10967 transitions. [2020-10-16 10:48:26,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 10:48:26,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 10967 transitions. [2020-10-16 10:48:26,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 10:48:26,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:26,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:26,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-16 10:48:26,007 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:26,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:26,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1935934284, now seen corresponding path program 1 times [2020-10-16 10:48:26,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:26,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943708576] [2020-10-16 10:48:26,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:26,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:26,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943708576] [2020-10-16 10:48:26,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:26,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 10:48:26,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114481538] [2020-10-16 10:48:26,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 10:48:26,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:26,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 10:48:26,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 10:48:26,071 INFO L87 Difference]: Start difference. First operand 2948 states and 10967 transitions. Second operand 6 states. [2020-10-16 10:48:26,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:26,227 INFO L93 Difference]: Finished difference Result 3727 states and 13634 transitions. [2020-10-16 10:48:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 10:48:26,228 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-16 10:48:26,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:26,240 INFO L225 Difference]: With dead ends: 3727 [2020-10-16 10:48:26,240 INFO L226 Difference]: Without dead ends: 3652 [2020-10-16 10:48:26,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-16 10:48:26,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2020-10-16 10:48:26,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3270. [2020-10-16 10:48:26,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3270 states. [2020-10-16 10:48:26,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 12154 transitions. [2020-10-16 10:48:26,427 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 12154 transitions. Word has length 21 [2020-10-16 10:48:26,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:26,427 INFO L481 AbstractCegarLoop]: Abstraction has 3270 states and 12154 transitions. [2020-10-16 10:48:26,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 10:48:26,428 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 12154 transitions. [2020-10-16 10:48:26,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 10:48:26,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:26,431 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:26,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-16 10:48:26,431 INFO L429 AbstractCegarLoop]: === Iteration 19 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:26,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:26,432 INFO L82 PathProgramCache]: Analyzing trace with hash 558788524, now seen corresponding path program 1 times [2020-10-16 10:48:26,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:26,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978713923] [2020-10-16 10:48:26,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:26,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:26,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978713923] [2020-10-16 10:48:26,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:26,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 10:48:26,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437561805] [2020-10-16 10:48:26,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 10:48:26,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:26,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 10:48:26,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-16 10:48:26,684 INFO L87 Difference]: Start difference. First operand 3270 states and 12154 transitions. Second operand 12 states. [2020-10-16 10:48:27,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:27,478 INFO L93 Difference]: Finished difference Result 4405 states and 16600 transitions. [2020-10-16 10:48:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 10:48:27,479 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2020-10-16 10:48:27,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:27,491 INFO L225 Difference]: With dead ends: 4405 [2020-10-16 10:48:27,492 INFO L226 Difference]: Without dead ends: 4371 [2020-10-16 10:48:27,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-10-16 10:48:27,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4371 states. [2020-10-16 10:48:27,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4371 to 3270. [2020-10-16 10:48:27,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3270 states. [2020-10-16 10:48:27,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 12154 transitions. [2020-10-16 10:48:27,591 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 12154 transitions. Word has length 21 [2020-10-16 10:48:27,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:27,592 INFO L481 AbstractCegarLoop]: Abstraction has 3270 states and 12154 transitions. [2020-10-16 10:48:27,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 10:48:27,592 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 12154 transitions. [2020-10-16 10:48:27,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 10:48:27,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:27,595 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:27,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-16 10:48:27,595 INFO L429 AbstractCegarLoop]: === Iteration 20 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:27,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:27,595 INFO L82 PathProgramCache]: Analyzing trace with hash 540913924, now seen corresponding path program 2 times [2020-10-16 10:48:27,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:27,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938051633] [2020-10-16 10:48:27,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:27,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:27,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938051633] [2020-10-16 10:48:27,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:27,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 10:48:27,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482249380] [2020-10-16 10:48:27,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 10:48:27,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:27,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 10:48:27,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-16 10:48:27,784 INFO L87 Difference]: Start difference. First operand 3270 states and 12154 transitions. Second operand 11 states. [2020-10-16 10:48:28,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:28,274 INFO L93 Difference]: Finished difference Result 4064 states and 15268 transitions. [2020-10-16 10:48:28,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 10:48:28,275 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-16 10:48:28,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:28,286 INFO L225 Difference]: With dead ends: 4064 [2020-10-16 10:48:28,286 INFO L226 Difference]: Without dead ends: 3972 [2020-10-16 10:48:28,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-16 10:48:28,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3972 states. [2020-10-16 10:48:28,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3972 to 2499. [2020-10-16 10:48:28,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2499 states. [2020-10-16 10:48:28,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 9076 transitions. [2020-10-16 10:48:28,358 INFO L78 Accepts]: Start accepts. Automaton has 2499 states and 9076 transitions. Word has length 21 [2020-10-16 10:48:28,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:28,359 INFO L481 AbstractCegarLoop]: Abstraction has 2499 states and 9076 transitions. [2020-10-16 10:48:28,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 10:48:28,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states and 9076 transitions. [2020-10-16 10:48:28,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 10:48:28,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:28,361 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:28,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-16 10:48:28,362 INFO L429 AbstractCegarLoop]: === Iteration 21 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:28,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:28,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1608946948, now seen corresponding path program 2 times [2020-10-16 10:48:28,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:28,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519777876] [2020-10-16 10:48:28,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:28,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:28,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519777876] [2020-10-16 10:48:28,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:28,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 10:48:28,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610903587] [2020-10-16 10:48:28,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 10:48:28,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:28,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 10:48:28,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 10:48:28,418 INFO L87 Difference]: Start difference. First operand 2499 states and 9076 transitions. Second operand 6 states. [2020-10-16 10:48:28,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:28,522 INFO L93 Difference]: Finished difference Result 2874 states and 10132 transitions. [2020-10-16 10:48:28,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 10:48:28,523 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-16 10:48:28,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:28,530 INFO L225 Difference]: With dead ends: 2874 [2020-10-16 10:48:28,530 INFO L226 Difference]: Without dead ends: 2650 [2020-10-16 10:48:28,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 10:48:28,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2020-10-16 10:48:28,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2211. [2020-10-16 10:48:28,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2211 states. [2020-10-16 10:48:28,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 7918 transitions. [2020-10-16 10:48:28,589 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 7918 transitions. Word has length 21 [2020-10-16 10:48:28,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:28,589 INFO L481 AbstractCegarLoop]: Abstraction has 2211 states and 7918 transitions. [2020-10-16 10:48:28,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 10:48:28,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 7918 transitions. [2020-10-16 10:48:28,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 10:48:28,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:28,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:28,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-16 10:48:28,592 INFO L429 AbstractCegarLoop]: === Iteration 22 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:28,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:28,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1396456954, now seen corresponding path program 1 times [2020-10-16 10:48:28,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:28,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672022023] [2020-10-16 10:48:28,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:28,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:28,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672022023] [2020-10-16 10:48:28,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:28,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 10:48:28,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672224875] [2020-10-16 10:48:28,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 10:48:28,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:28,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 10:48:28,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 10:48:28,659 INFO L87 Difference]: Start difference. First operand 2211 states and 7918 transitions. Second operand 7 states. [2020-10-16 10:48:28,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:28,929 INFO L93 Difference]: Finished difference Result 2930 states and 10378 transitions. [2020-10-16 10:48:28,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 10:48:28,929 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-16 10:48:28,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:28,938 INFO L225 Difference]: With dead ends: 2930 [2020-10-16 10:48:28,938 INFO L226 Difference]: Without dead ends: 2870 [2020-10-16 10:48:28,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-16 10:48:28,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2020-10-16 10:48:28,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 2208. [2020-10-16 10:48:28,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2208 states. [2020-10-16 10:48:28,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 7913 transitions. [2020-10-16 10:48:28,991 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 7913 transitions. Word has length 22 [2020-10-16 10:48:28,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:28,992 INFO L481 AbstractCegarLoop]: Abstraction has 2208 states and 7913 transitions. [2020-10-16 10:48:28,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 10:48:28,992 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 7913 transitions. [2020-10-16 10:48:28,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 10:48:28,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:28,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:28,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-16 10:48:28,995 INFO L429 AbstractCegarLoop]: === Iteration 23 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:28,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:28,995 INFO L82 PathProgramCache]: Analyzing trace with hash 644682778, now seen corresponding path program 2 times [2020-10-16 10:48:28,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:28,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802590698] [2020-10-16 10:48:28,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:29,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:29,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802590698] [2020-10-16 10:48:29,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:29,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 10:48:29,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361320092] [2020-10-16 10:48:29,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 10:48:29,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:29,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 10:48:29,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 10:48:29,090 INFO L87 Difference]: Start difference. First operand 2208 states and 7913 transitions. Second operand 8 states. [2020-10-16 10:48:29,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:29,409 INFO L93 Difference]: Finished difference Result 2920 states and 10358 transitions. [2020-10-16 10:48:29,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 10:48:29,410 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-16 10:48:29,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:29,418 INFO L225 Difference]: With dead ends: 2920 [2020-10-16 10:48:29,418 INFO L226 Difference]: Without dead ends: 2860 [2020-10-16 10:48:29,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-16 10:48:29,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2860 states. [2020-10-16 10:48:29,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2860 to 2202. [2020-10-16 10:48:29,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2202 states. [2020-10-16 10:48:29,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 7899 transitions. [2020-10-16 10:48:29,460 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 7899 transitions. Word has length 22 [2020-10-16 10:48:29,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:29,460 INFO L481 AbstractCegarLoop]: Abstraction has 2202 states and 7899 transitions. [2020-10-16 10:48:29,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 10:48:29,460 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 7899 transitions. [2020-10-16 10:48:29,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 10:48:29,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:29,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:29,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-16 10:48:29,462 INFO L429 AbstractCegarLoop]: === Iteration 24 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:29,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:29,463 INFO L82 PathProgramCache]: Analyzing trace with hash -787433364, now seen corresponding path program 3 times [2020-10-16 10:48:29,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:29,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864616091] [2020-10-16 10:48:29,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:29,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:29,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864616091] [2020-10-16 10:48:29,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:29,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 10:48:29,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359330627] [2020-10-16 10:48:29,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 10:48:29,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:29,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 10:48:29,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-16 10:48:29,567 INFO L87 Difference]: Start difference. First operand 2202 states and 7899 transitions. Second operand 9 states. [2020-10-16 10:48:29,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:29,777 INFO L93 Difference]: Finished difference Result 2905 states and 10327 transitions. [2020-10-16 10:48:29,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 10:48:29,777 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-16 10:48:29,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:29,784 INFO L225 Difference]: With dead ends: 2905 [2020-10-16 10:48:29,784 INFO L226 Difference]: Without dead ends: 2845 [2020-10-16 10:48:29,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-16 10:48:29,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2845 states. [2020-10-16 10:48:29,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2845 to 2202. [2020-10-16 10:48:29,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2202 states. [2020-10-16 10:48:29,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 7899 transitions. [2020-10-16 10:48:29,825 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 7899 transitions. Word has length 22 [2020-10-16 10:48:29,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:29,825 INFO L481 AbstractCegarLoop]: Abstraction has 2202 states and 7899 transitions. [2020-10-16 10:48:29,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 10:48:29,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 7899 transitions. [2020-10-16 10:48:29,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 10:48:29,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:29,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:29,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-16 10:48:29,827 INFO L429 AbstractCegarLoop]: === Iteration 25 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:29,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:29,827 INFO L82 PathProgramCache]: Analyzing trace with hash -270857424, now seen corresponding path program 4 times [2020-10-16 10:48:29,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:29,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628135340] [2020-10-16 10:48:29,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:30,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:30,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628135340] [2020-10-16 10:48:30,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:30,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 10:48:30,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201894002] [2020-10-16 10:48:30,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 10:48:30,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:30,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 10:48:30,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-16 10:48:30,027 INFO L87 Difference]: Start difference. First operand 2202 states and 7899 transitions. Second operand 11 states. [2020-10-16 10:48:30,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:30,413 INFO L93 Difference]: Finished difference Result 3120 states and 11113 transitions. [2020-10-16 10:48:30,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 10:48:30,413 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2020-10-16 10:48:30,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:30,421 INFO L225 Difference]: With dead ends: 3120 [2020-10-16 10:48:30,421 INFO L226 Difference]: Without dead ends: 3060 [2020-10-16 10:48:30,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-16 10:48:30,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2020-10-16 10:48:30,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 2202. [2020-10-16 10:48:30,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2202 states. [2020-10-16 10:48:30,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 7896 transitions. [2020-10-16 10:48:30,465 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 7896 transitions. Word has length 22 [2020-10-16 10:48:30,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:30,465 INFO L481 AbstractCegarLoop]: Abstraction has 2202 states and 7896 transitions. [2020-10-16 10:48:30,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 10:48:30,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 7896 transitions. [2020-10-16 10:48:30,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 10:48:30,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:30,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:30,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-16 10:48:30,467 INFO L429 AbstractCegarLoop]: === Iteration 26 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:30,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:30,468 INFO L82 PathProgramCache]: Analyzing trace with hash -503603988, now seen corresponding path program 5 times [2020-10-16 10:48:30,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:30,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033235264] [2020-10-16 10:48:30,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:30,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:30,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033235264] [2020-10-16 10:48:30,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:30,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 10:48:30,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745979513] [2020-10-16 10:48:30,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 10:48:30,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:30,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 10:48:30,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-16 10:48:30,565 INFO L87 Difference]: Start difference. First operand 2202 states and 7896 transitions. Second operand 9 states. [2020-10-16 10:48:30,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:30,892 INFO L93 Difference]: Finished difference Result 3737 states and 13299 transitions. [2020-10-16 10:48:30,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 10:48:30,893 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-16 10:48:30,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:30,901 INFO L225 Difference]: With dead ends: 3737 [2020-10-16 10:48:30,901 INFO L226 Difference]: Without dead ends: 3677 [2020-10-16 10:48:30,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-16 10:48:30,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3677 states. [2020-10-16 10:48:30,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3677 to 2170. [2020-10-16 10:48:30,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2170 states. [2020-10-16 10:48:30,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 7789 transitions. [2020-10-16 10:48:30,941 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 7789 transitions. Word has length 22 [2020-10-16 10:48:30,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:30,941 INFO L481 AbstractCegarLoop]: Abstraction has 2170 states and 7789 transitions. [2020-10-16 10:48:30,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 10:48:30,941 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 7789 transitions. [2020-10-16 10:48:30,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-16 10:48:30,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:30,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:30,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-16 10:48:30,943 INFO L429 AbstractCegarLoop]: === Iteration 27 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:30,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:30,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1357008819, now seen corresponding path program 1 times [2020-10-16 10:48:30,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:30,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494950396] [2020-10-16 10:48:30,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:31,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:31,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494950396] [2020-10-16 10:48:31,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:31,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 10:48:31,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301217454] [2020-10-16 10:48:31,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 10:48:31,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:31,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 10:48:31,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-16 10:48:31,078 INFO L87 Difference]: Start difference. First operand 2170 states and 7789 transitions. Second operand 10 states. [2020-10-16 10:48:31,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:31,614 INFO L93 Difference]: Finished difference Result 3595 states and 12502 transitions. [2020-10-16 10:48:31,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 10:48:31,614 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-10-16 10:48:31,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:31,623 INFO L225 Difference]: With dead ends: 3595 [2020-10-16 10:48:31,623 INFO L226 Difference]: Without dead ends: 3478 [2020-10-16 10:48:31,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-16 10:48:31,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3478 states. [2020-10-16 10:48:31,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3478 to 1979. [2020-10-16 10:48:31,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1979 states. [2020-10-16 10:48:31,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1979 states to 1979 states and 7017 transitions. [2020-10-16 10:48:31,660 INFO L78 Accepts]: Start accepts. Automaton has 1979 states and 7017 transitions. Word has length 23 [2020-10-16 10:48:31,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:31,661 INFO L481 AbstractCegarLoop]: Abstraction has 1979 states and 7017 transitions. [2020-10-16 10:48:31,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 10:48:31,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1979 states and 7017 transitions. [2020-10-16 10:48:31,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 10:48:31,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:31,664 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:31,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-16 10:48:31,664 INFO L429 AbstractCegarLoop]: === Iteration 28 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:31,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:31,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1309010247, now seen corresponding path program 1 times [2020-10-16 10:48:31,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:31,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073440663] [2020-10-16 10:48:31,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:31,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:31,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073440663] [2020-10-16 10:48:31,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:31,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 10:48:31,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118899116] [2020-10-16 10:48:31,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 10:48:31,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:31,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 10:48:31,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 10:48:31,718 INFO L87 Difference]: Start difference. First operand 1979 states and 7017 transitions. Second operand 6 states. [2020-10-16 10:48:31,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:31,878 INFO L93 Difference]: Finished difference Result 2476 states and 8453 transitions. [2020-10-16 10:48:31,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 10:48:31,879 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-16 10:48:31,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:31,885 INFO L225 Difference]: With dead ends: 2476 [2020-10-16 10:48:31,885 INFO L226 Difference]: Without dead ends: 2412 [2020-10-16 10:48:31,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-16 10:48:31,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2020-10-16 10:48:31,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2291. [2020-10-16 10:48:31,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2291 states. [2020-10-16 10:48:31,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 8009 transitions. [2020-10-16 10:48:31,988 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 8009 transitions. Word has length 24 [2020-10-16 10:48:31,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:31,989 INFO L481 AbstractCegarLoop]: Abstraction has 2291 states and 8009 transitions. [2020-10-16 10:48:31,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 10:48:31,989 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 8009 transitions. [2020-10-16 10:48:31,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 10:48:31,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:31,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:31,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-16 10:48:31,993 INFO L429 AbstractCegarLoop]: === Iteration 29 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:31,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:31,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1793125216, now seen corresponding path program 1 times [2020-10-16 10:48:31,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:31,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373662918] [2020-10-16 10:48:31,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:32,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:32,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373662918] [2020-10-16 10:48:32,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:32,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 10:48:32,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396177249] [2020-10-16 10:48:32,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 10:48:32,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:32,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 10:48:32,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-16 10:48:32,107 INFO L87 Difference]: Start difference. First operand 2291 states and 8009 transitions. Second operand 9 states. [2020-10-16 10:48:32,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:32,392 INFO L93 Difference]: Finished difference Result 3139 states and 10958 transitions. [2020-10-16 10:48:32,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 10:48:32,393 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-10-16 10:48:32,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:32,404 INFO L225 Difference]: With dead ends: 3139 [2020-10-16 10:48:32,404 INFO L226 Difference]: Without dead ends: 3115 [2020-10-16 10:48:32,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-16 10:48:32,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3115 states. [2020-10-16 10:48:32,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3115 to 2290. [2020-10-16 10:48:32,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2290 states. [2020-10-16 10:48:32,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2290 states to 2290 states and 8008 transitions. [2020-10-16 10:48:32,486 INFO L78 Accepts]: Start accepts. Automaton has 2290 states and 8008 transitions. Word has length 24 [2020-10-16 10:48:32,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:32,487 INFO L481 AbstractCegarLoop]: Abstraction has 2290 states and 8008 transitions. [2020-10-16 10:48:32,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 10:48:32,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2290 states and 8008 transitions. [2020-10-16 10:48:32,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 10:48:32,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:32,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:32,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-16 10:48:32,493 INFO L429 AbstractCegarLoop]: === Iteration 30 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:32,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:32,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1041351040, now seen corresponding path program 2 times [2020-10-16 10:48:32,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:32,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164589343] [2020-10-16 10:48:32,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:32,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:32,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164589343] [2020-10-16 10:48:32,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:32,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 10:48:32,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975375880] [2020-10-16 10:48:32,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 10:48:32,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:32,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 10:48:32,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-16 10:48:32,674 INFO L87 Difference]: Start difference. First operand 2290 states and 8008 transitions. Second operand 10 states. [2020-10-16 10:48:33,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:33,250 INFO L93 Difference]: Finished difference Result 3138 states and 10954 transitions. [2020-10-16 10:48:33,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 10:48:33,251 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-10-16 10:48:33,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:33,262 INFO L225 Difference]: With dead ends: 3138 [2020-10-16 10:48:33,262 INFO L226 Difference]: Without dead ends: 3114 [2020-10-16 10:48:33,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2020-10-16 10:48:33,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3114 states. [2020-10-16 10:48:33,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3114 to 2293. [2020-10-16 10:48:33,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2293 states. [2020-10-16 10:48:33,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2293 states to 2293 states and 8015 transitions. [2020-10-16 10:48:33,341 INFO L78 Accepts]: Start accepts. Automaton has 2293 states and 8015 transitions. Word has length 24 [2020-10-16 10:48:33,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:33,341 INFO L481 AbstractCegarLoop]: Abstraction has 2293 states and 8015 transitions. [2020-10-16 10:48:33,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 10:48:33,342 INFO L276 IsEmpty]: Start isEmpty. Operand 2293 states and 8015 transitions. [2020-10-16 10:48:33,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 10:48:33,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:33,347 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:33,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-16 10:48:33,347 INFO L429 AbstractCegarLoop]: === Iteration 31 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:33,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:33,348 INFO L82 PathProgramCache]: Analyzing trace with hash -106935726, now seen corresponding path program 3 times [2020-10-16 10:48:33,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:33,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239087562] [2020-10-16 10:48:33,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:33,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:33,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239087562] [2020-10-16 10:48:33,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:33,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 10:48:33,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130727067] [2020-10-16 10:48:33,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 10:48:33,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:33,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 10:48:33,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-16 10:48:33,538 INFO L87 Difference]: Start difference. First operand 2293 states and 8015 transitions. Second operand 11 states. [2020-10-16 10:48:33,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:33,899 INFO L93 Difference]: Finished difference Result 3732 states and 13122 transitions. [2020-10-16 10:48:33,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 10:48:33,899 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2020-10-16 10:48:33,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:33,909 INFO L225 Difference]: With dead ends: 3732 [2020-10-16 10:48:33,910 INFO L226 Difference]: Without dead ends: 3708 [2020-10-16 10:48:33,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-10-16 10:48:33,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3708 states. [2020-10-16 10:48:33,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3708 to 2271. [2020-10-16 10:48:33,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2271 states. [2020-10-16 10:48:33,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 7965 transitions. [2020-10-16 10:48:33,957 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 7965 transitions. Word has length 24 [2020-10-16 10:48:33,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:33,957 INFO L481 AbstractCegarLoop]: Abstraction has 2271 states and 7965 transitions. [2020-10-16 10:48:33,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 10:48:33,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 7965 transitions. [2020-10-16 10:48:33,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 10:48:33,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:33,961 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:33,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-16 10:48:33,961 INFO L429 AbstractCegarLoop]: === Iteration 32 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:33,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:33,962 INFO L82 PathProgramCache]: Analyzing trace with hash -408101783, now seen corresponding path program 2 times [2020-10-16 10:48:33,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:33,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186049717] [2020-10-16 10:48:33,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:34,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186049717] [2020-10-16 10:48:34,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:34,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 10:48:34,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739142370] [2020-10-16 10:48:34,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 10:48:34,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:34,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 10:48:34,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 10:48:34,070 INFO L87 Difference]: Start difference. First operand 2271 states and 7965 transitions. Second operand 7 states. [2020-10-16 10:48:34,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:34,311 INFO L93 Difference]: Finished difference Result 2765 states and 9396 transitions. [2020-10-16 10:48:34,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 10:48:34,311 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-10-16 10:48:34,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:34,318 INFO L225 Difference]: With dead ends: 2765 [2020-10-16 10:48:34,318 INFO L226 Difference]: Without dead ends: 2701 [2020-10-16 10:48:34,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-16 10:48:34,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2020-10-16 10:48:34,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 2268. [2020-10-16 10:48:34,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2268 states. [2020-10-16 10:48:34,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 7960 transitions. [2020-10-16 10:48:34,355 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 7960 transitions. Word has length 24 [2020-10-16 10:48:34,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:34,356 INFO L481 AbstractCegarLoop]: Abstraction has 2268 states and 7960 transitions. [2020-10-16 10:48:34,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 10:48:34,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 7960 transitions. [2020-10-16 10:48:34,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 10:48:34,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:34,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:34,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-16 10:48:34,359 INFO L429 AbstractCegarLoop]: === Iteration 33 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:34,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:34,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1308579191, now seen corresponding path program 3 times [2020-10-16 10:48:34,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:34,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784643309] [2020-10-16 10:48:34,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:34,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:34,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784643309] [2020-10-16 10:48:34,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:34,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 10:48:34,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093987102] [2020-10-16 10:48:34,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 10:48:34,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:34,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 10:48:34,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 10:48:34,458 INFO L87 Difference]: Start difference. First operand 2268 states and 7960 transitions. Second operand 8 states. [2020-10-16 10:48:34,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:34,687 INFO L93 Difference]: Finished difference Result 2755 states and 9376 transitions. [2020-10-16 10:48:34,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 10:48:34,688 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-10-16 10:48:34,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:34,695 INFO L225 Difference]: With dead ends: 2755 [2020-10-16 10:48:34,695 INFO L226 Difference]: Without dead ends: 2691 [2020-10-16 10:48:34,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-16 10:48:34,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2020-10-16 10:48:34,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2262. [2020-10-16 10:48:34,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2262 states. [2020-10-16 10:48:34,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 7946 transitions. [2020-10-16 10:48:34,731 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 7946 transitions. Word has length 24 [2020-10-16 10:48:34,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:34,731 INFO L481 AbstractCegarLoop]: Abstraction has 2262 states and 7946 transitions. [2020-10-16 10:48:34,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 10:48:34,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 7946 transitions. [2020-10-16 10:48:34,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 10:48:34,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:34,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:34,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-16 10:48:34,735 INFO L429 AbstractCegarLoop]: === Iteration 34 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:34,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:34,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1370549309, now seen corresponding path program 4 times [2020-10-16 10:48:34,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:34,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847169885] [2020-10-16 10:48:34,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:34,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:34,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847169885] [2020-10-16 10:48:34,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:34,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 10:48:34,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312353112] [2020-10-16 10:48:34,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 10:48:34,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:34,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 10:48:34,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-16 10:48:34,876 INFO L87 Difference]: Start difference. First operand 2262 states and 7946 transitions. Second operand 10 states. [2020-10-16 10:48:35,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:35,094 INFO L93 Difference]: Finished difference Result 2704 states and 9243 transitions. [2020-10-16 10:48:35,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 10:48:35,095 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-10-16 10:48:35,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:35,103 INFO L225 Difference]: With dead ends: 2704 [2020-10-16 10:48:35,103 INFO L226 Difference]: Without dead ends: 2640 [2020-10-16 10:48:35,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-10-16 10:48:35,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states. [2020-10-16 10:48:35,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 2262. [2020-10-16 10:48:35,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2262 states. [2020-10-16 10:48:35,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 7946 transitions. [2020-10-16 10:48:35,159 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 7946 transitions. Word has length 24 [2020-10-16 10:48:35,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:35,160 INFO L481 AbstractCegarLoop]: Abstraction has 2262 states and 7946 transitions. [2020-10-16 10:48:35,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 10:48:35,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 7946 transitions. [2020-10-16 10:48:35,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 10:48:35,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:35,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:35,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-16 10:48:35,165 INFO L429 AbstractCegarLoop]: === Iteration 35 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:35,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:35,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1607134461, now seen corresponding path program 5 times [2020-10-16 10:48:35,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:35,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151669356] [2020-10-16 10:48:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:35,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:35,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151669356] [2020-10-16 10:48:35,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:35,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 10:48:35,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852511469] [2020-10-16 10:48:35,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 10:48:35,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:35,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 10:48:35,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-16 10:48:35,389 INFO L87 Difference]: Start difference. First operand 2262 states and 7946 transitions. Second operand 13 states. [2020-10-16 10:48:35,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:35,971 INFO L93 Difference]: Finished difference Result 4164 states and 14122 transitions. [2020-10-16 10:48:35,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 10:48:35,972 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2020-10-16 10:48:35,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:35,982 INFO L225 Difference]: With dead ends: 4164 [2020-10-16 10:48:35,982 INFO L226 Difference]: Without dead ends: 4036 [2020-10-16 10:48:35,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-16 10:48:35,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4036 states. [2020-10-16 10:48:36,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4036 to 2451. [2020-10-16 10:48:36,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2451 states. [2020-10-16 10:48:36,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2451 states to 2451 states and 8748 transitions. [2020-10-16 10:48:36,029 INFO L78 Accepts]: Start accepts. Automaton has 2451 states and 8748 transitions. Word has length 24 [2020-10-16 10:48:36,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:36,030 INFO L481 AbstractCegarLoop]: Abstraction has 2451 states and 8748 transitions. [2020-10-16 10:48:36,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 10:48:36,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2451 states and 8748 transitions. [2020-10-16 10:48:36,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 10:48:36,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:36,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:36,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-16 10:48:36,034 INFO L429 AbstractCegarLoop]: === Iteration 36 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:36,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:36,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1497656527, now seen corresponding path program 6 times [2020-10-16 10:48:36,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:36,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768018406] [2020-10-16 10:48:36,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:36,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:36,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768018406] [2020-10-16 10:48:36,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:36,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 10:48:36,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656384598] [2020-10-16 10:48:36,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 10:48:36,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:36,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 10:48:36,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-16 10:48:36,147 INFO L87 Difference]: Start difference. First operand 2451 states and 8748 transitions. Second operand 10 states. [2020-10-16 10:48:36,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:36,463 INFO L93 Difference]: Finished difference Result 3358 states and 11346 transitions. [2020-10-16 10:48:36,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 10:48:36,464 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-10-16 10:48:36,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:36,471 INFO L225 Difference]: With dead ends: 3358 [2020-10-16 10:48:36,471 INFO L226 Difference]: Without dead ends: 3294 [2020-10-16 10:48:36,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-10-16 10:48:36,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2020-10-16 10:48:36,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 2271. [2020-10-16 10:48:36,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2271 states. [2020-10-16 10:48:36,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 8062 transitions. [2020-10-16 10:48:36,510 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 8062 transitions. Word has length 24 [2020-10-16 10:48:36,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:36,510 INFO L481 AbstractCegarLoop]: Abstraction has 2271 states and 8062 transitions. [2020-10-16 10:48:36,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 10:48:36,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 8062 transitions. [2020-10-16 10:48:36,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 10:48:36,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:36,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:36,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-16 10:48:36,513 INFO L429 AbstractCegarLoop]: === Iteration 37 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:36,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:36,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1945194585, now seen corresponding path program 1 times [2020-10-16 10:48:36,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:36,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943936878] [2020-10-16 10:48:36,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:36,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:36,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943936878] [2020-10-16 10:48:36,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:36,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 10:48:36,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138597783] [2020-10-16 10:48:36,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 10:48:36,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:36,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 10:48:36,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-16 10:48:36,731 INFO L87 Difference]: Start difference. First operand 2271 states and 8062 transitions. Second operand 12 states. [2020-10-16 10:48:37,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:37,175 INFO L93 Difference]: Finished difference Result 2789 states and 9626 transitions. [2020-10-16 10:48:37,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 10:48:37,176 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 25 [2020-10-16 10:48:37,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:37,185 INFO L225 Difference]: With dead ends: 2789 [2020-10-16 10:48:37,185 INFO L226 Difference]: Without dead ends: 2742 [2020-10-16 10:48:37,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2020-10-16 10:48:37,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2742 states. [2020-10-16 10:48:37,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2742 to 1742. [2020-10-16 10:48:37,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1742 states. [2020-10-16 10:48:37,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 6049 transitions. [2020-10-16 10:48:37,239 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 6049 transitions. Word has length 25 [2020-10-16 10:48:37,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:37,239 INFO L481 AbstractCegarLoop]: Abstraction has 1742 states and 6049 transitions. [2020-10-16 10:48:37,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 10:48:37,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 6049 transitions. [2020-10-16 10:48:37,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 10:48:37,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:37,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:37,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-16 10:48:37,244 INFO L429 AbstractCegarLoop]: === Iteration 38 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:37,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:37,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1461991345, now seen corresponding path program 1 times [2020-10-16 10:48:37,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:37,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335266866] [2020-10-16 10:48:37,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:37,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:37,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335266866] [2020-10-16 10:48:37,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:37,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 10:48:37,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322594193] [2020-10-16 10:48:37,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 10:48:37,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:37,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 10:48:37,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-16 10:48:37,340 INFO L87 Difference]: Start difference. First operand 1742 states and 6049 transitions. Second operand 9 states. [2020-10-16 10:48:37,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:37,637 INFO L93 Difference]: Finished difference Result 2359 states and 7868 transitions. [2020-10-16 10:48:37,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 10:48:37,637 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-10-16 10:48:37,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:37,642 INFO L225 Difference]: With dead ends: 2359 [2020-10-16 10:48:37,642 INFO L226 Difference]: Without dead ends: 2337 [2020-10-16 10:48:37,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-16 10:48:37,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2020-10-16 10:48:37,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 1741. [2020-10-16 10:48:37,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1741 states. [2020-10-16 10:48:37,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 6048 transitions. [2020-10-16 10:48:37,676 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 6048 transitions. Word has length 26 [2020-10-16 10:48:37,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:37,676 INFO L481 AbstractCegarLoop]: Abstraction has 1741 states and 6048 transitions. [2020-10-16 10:48:37,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 10:48:37,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 6048 transitions. [2020-10-16 10:48:37,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 10:48:37,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:37,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:37,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-16 10:48:37,680 INFO L429 AbstractCegarLoop]: === Iteration 39 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:37,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:37,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1932498543, now seen corresponding path program 2 times [2020-10-16 10:48:37,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:37,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529975140] [2020-10-16 10:48:37,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:37,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:37,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529975140] [2020-10-16 10:48:37,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:37,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 10:48:37,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748270438] [2020-10-16 10:48:37,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 10:48:37,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:37,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 10:48:37,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-16 10:48:37,798 INFO L87 Difference]: Start difference. First operand 1741 states and 6048 transitions. Second operand 10 states. [2020-10-16 10:48:38,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:38,145 INFO L93 Difference]: Finished difference Result 2355 states and 7860 transitions. [2020-10-16 10:48:38,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 10:48:38,146 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-10-16 10:48:38,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:38,151 INFO L225 Difference]: With dead ends: 2355 [2020-10-16 10:48:38,151 INFO L226 Difference]: Without dead ends: 2333 [2020-10-16 10:48:38,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2020-10-16 10:48:38,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2020-10-16 10:48:38,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 1744. [2020-10-16 10:48:38,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1744 states. [2020-10-16 10:48:38,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 6055 transitions. [2020-10-16 10:48:38,179 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 6055 transitions. Word has length 26 [2020-10-16 10:48:38,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:38,179 INFO L481 AbstractCegarLoop]: Abstraction has 1744 states and 6055 transitions. [2020-10-16 10:48:38,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 10:48:38,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 6055 transitions. [2020-10-16 10:48:38,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 10:48:38,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:38,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:38,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-16 10:48:38,182 INFO L429 AbstractCegarLoop]: === Iteration 40 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:38,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:38,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1870528425, now seen corresponding path program 3 times [2020-10-16 10:48:38,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:38,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361638184] [2020-10-16 10:48:38,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:38,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:38,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361638184] [2020-10-16 10:48:38,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:38,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 10:48:38,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719652179] [2020-10-16 10:48:38,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 10:48:38,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:38,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 10:48:38,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-16 10:48:38,378 INFO L87 Difference]: Start difference. First operand 1744 states and 6055 transitions. Second operand 12 states. [2020-10-16 10:48:38,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:38,722 INFO L93 Difference]: Finished difference Result 2375 states and 7965 transitions. [2020-10-16 10:48:38,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 10:48:38,723 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2020-10-16 10:48:38,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:38,729 INFO L225 Difference]: With dead ends: 2375 [2020-10-16 10:48:38,730 INFO L226 Difference]: Without dead ends: 2287 [2020-10-16 10:48:38,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2020-10-16 10:48:38,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2287 states. [2020-10-16 10:48:38,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2287 to 1491. [2020-10-16 10:48:38,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2020-10-16 10:48:38,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 5039 transitions. [2020-10-16 10:48:38,770 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 5039 transitions. Word has length 26 [2020-10-16 10:48:38,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:38,771 INFO L481 AbstractCegarLoop]: Abstraction has 1491 states and 5039 transitions. [2020-10-16 10:48:38,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 10:48:38,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 5039 transitions. [2020-10-16 10:48:38,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 10:48:38,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:38,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:38,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-16 10:48:38,775 INFO L429 AbstractCegarLoop]: === Iteration 41 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:38,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:38,775 INFO L82 PathProgramCache]: Analyzing trace with hash 443766965, now seen corresponding path program 4 times [2020-10-16 10:48:38,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:38,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494537389] [2020-10-16 10:48:38,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:38,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:38,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494537389] [2020-10-16 10:48:38,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:38,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 10:48:38,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6378507] [2020-10-16 10:48:38,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 10:48:38,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:38,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 10:48:38,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-16 10:48:38,971 INFO L87 Difference]: Start difference. First operand 1491 states and 5039 transitions. Second operand 12 states. [2020-10-16 10:48:39,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:39,391 INFO L93 Difference]: Finished difference Result 1544 states and 5003 transitions. [2020-10-16 10:48:39,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 10:48:39,392 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2020-10-16 10:48:39,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:39,395 INFO L225 Difference]: With dead ends: 1544 [2020-10-16 10:48:39,395 INFO L226 Difference]: Without dead ends: 1500 [2020-10-16 10:48:39,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2020-10-16 10:48:39,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2020-10-16 10:48:39,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 885. [2020-10-16 10:48:39,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 885 states. [2020-10-16 10:48:39,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 3033 transitions. [2020-10-16 10:48:39,411 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 3033 transitions. Word has length 26 [2020-10-16 10:48:39,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:39,411 INFO L481 AbstractCegarLoop]: Abstraction has 885 states and 3033 transitions. [2020-10-16 10:48:39,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 10:48:39,411 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 3033 transitions. [2020-10-16 10:48:39,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-16 10:48:39,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:39,413 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:39,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-16 10:48:39,413 INFO L429 AbstractCegarLoop]: === Iteration 42 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:39,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:39,413 INFO L82 PathProgramCache]: Analyzing trace with hash -416507732, now seen corresponding path program 1 times [2020-10-16 10:48:39,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:39,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102863280] [2020-10-16 10:48:39,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:39,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:39,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102863280] [2020-10-16 10:48:39,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:39,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 10:48:39,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59033870] [2020-10-16 10:48:39,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 10:48:39,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:39,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 10:48:39,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-16 10:48:39,491 INFO L87 Difference]: Start difference. First operand 885 states and 3033 transitions. Second operand 8 states. [2020-10-16 10:48:39,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:39,644 INFO L93 Difference]: Finished difference Result 885 states and 3029 transitions. [2020-10-16 10:48:39,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 10:48:39,644 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-10-16 10:48:39,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:39,647 INFO L225 Difference]: With dead ends: 885 [2020-10-16 10:48:39,647 INFO L226 Difference]: Without dead ends: 879 [2020-10-16 10:48:39,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-16 10:48:39,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2020-10-16 10:48:39,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 879. [2020-10-16 10:48:39,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-10-16 10:48:39,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 3010 transitions. [2020-10-16 10:48:39,661 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 3010 transitions. Word has length 41 [2020-10-16 10:48:39,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:39,661 INFO L481 AbstractCegarLoop]: Abstraction has 879 states and 3010 transitions. [2020-10-16 10:48:39,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 10:48:39,661 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 3010 transitions. [2020-10-16 10:48:39,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-16 10:48:39,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:39,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:39,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-16 10:48:39,663 INFO L429 AbstractCegarLoop]: === Iteration 43 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:39,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:39,663 INFO L82 PathProgramCache]: Analyzing trace with hash 829092404, now seen corresponding path program 1 times [2020-10-16 10:48:39,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:39,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322657076] [2020-10-16 10:48:39,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:39,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:39,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322657076] [2020-10-16 10:48:39,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:39,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 10:48:39,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581463218] [2020-10-16 10:48:39,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 10:48:39,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:39,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 10:48:39,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-16 10:48:39,746 INFO L87 Difference]: Start difference. First operand 879 states and 3010 transitions. Second operand 8 states. [2020-10-16 10:48:39,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:39,893 INFO L93 Difference]: Finished difference Result 879 states and 3006 transitions. [2020-10-16 10:48:39,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 10:48:39,894 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-10-16 10:48:39,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:39,896 INFO L225 Difference]: With dead ends: 879 [2020-10-16 10:48:39,896 INFO L226 Difference]: Without dead ends: 819 [2020-10-16 10:48:39,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-16 10:48:39,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2020-10-16 10:48:39,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 819. [2020-10-16 10:48:39,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 819 states. [2020-10-16 10:48:39,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 2784 transitions. [2020-10-16 10:48:39,916 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 2784 transitions. Word has length 41 [2020-10-16 10:48:39,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:39,917 INFO L481 AbstractCegarLoop]: Abstraction has 819 states and 2784 transitions. [2020-10-16 10:48:39,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 10:48:39,917 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 2784 transitions. [2020-10-16 10:48:39,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-16 10:48:39,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:39,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:39,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-16 10:48:39,919 INFO L429 AbstractCegarLoop]: === Iteration 44 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 10:48:39,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:39,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1378914744, now seen corresponding path program 1 times [2020-10-16 10:48:39,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:39,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384345757] [2020-10-16 10:48:39,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 10:48:39,942 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 10:48:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 10:48:39,960 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 10:48:40,007 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 10:48:40,007 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 10:48:40,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-16 10:48:40,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 10:48:40 BasicIcfg [2020-10-16 10:48:40,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 10:48:40,142 INFO L168 Benchmark]: Toolchain (without parser) took 32369.01 ms. Allocated memory was 143.7 MB in the beginning and 942.1 MB in the end (delta: 798.5 MB). Free memory was 97.4 MB in the beginning and 652.3 MB in the end (delta: -554.9 MB). Peak memory consumption was 243.6 MB. Max. memory is 7.1 GB. [2020-10-16 10:48:40,143 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 10:48:40,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 987.39 ms. Allocated memory was 143.7 MB in the beginning and 199.8 MB in the end (delta: 56.1 MB). Free memory was 97.2 MB in the beginning and 119.0 MB in the end (delta: -21.8 MB). Peak memory consumption was 44.0 MB. Max. memory is 7.1 GB. [2020-10-16 10:48:40,143 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.46 ms. Allocated memory is still 199.8 MB. Free memory was 119.0 MB in the beginning and 116.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 10:48:40,144 INFO L168 Benchmark]: Boogie Preprocessor took 29.88 ms. Allocated memory is still 199.8 MB. Free memory was 116.9 MB in the beginning and 114.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-10-16 10:48:40,144 INFO L168 Benchmark]: RCFGBuilder took 490.15 ms. Allocated memory is still 199.8 MB. Free memory was 114.7 MB in the beginning and 87.8 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-10-16 10:48:40,144 INFO L168 Benchmark]: TraceAbstraction took 30796.62 ms. Allocated memory was 199.8 MB in the beginning and 942.1 MB in the end (delta: 742.4 MB). Free memory was 87.0 MB in the beginning and 652.3 MB in the end (delta: -565.3 MB). Peak memory consumption was 177.1 MB. Max. memory is 7.1 GB. [2020-10-16 10:48:40,151 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 987.39 ms. Allocated memory was 143.7 MB in the beginning and 199.8 MB in the end (delta: 56.1 MB). Free memory was 97.2 MB in the beginning and 119.0 MB in the end (delta: -21.8 MB). Peak memory consumption was 44.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.46 ms. Allocated memory is still 199.8 MB. Free memory was 119.0 MB in the beginning and 116.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.88 ms. Allocated memory is still 199.8 MB. Free memory was 116.9 MB in the beginning and 114.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 490.15 ms. Allocated memory is still 199.8 MB. Free memory was 114.7 MB in the beginning and 87.8 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30796.62 ms. Allocated memory was 199.8 MB in the beginning and 942.1 MB in the end (delta: 742.4 MB). Free memory was 87.0 MB in the beginning and 652.3 MB in the end (delta: -565.3 MB). Peak memory consumption was 177.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3325 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 1147 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.5s, 172 PlacesBefore, 101 PlacesAfterwards, 243 TransitionsBefore, 173 TransitionsAfterwards, 4038 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 47722 MoverChecksTotal - CounterExampleResult [Line: 1088]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1089] 0 char *v; [L1122] 0 pthread_t t; [L1123] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [arg={0:0}, v={0:0}] [L1107] 1 pthread_t t1, t2, t3, t4, t5; [L1108] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, t1={11:0}, t2={13:0}, t3={10:0}, t4={8:0}, t5={12:0}, v={0:0}] [L1109] 1 \read(t1) VAL [\read(t1)=0, arg={0:0}, arg={0:0}, arg={0:0}, t1={11:0}, t2={13:0}, t3={10:0}, t4={8:0}, t5={12:0}, v={0:0}] [L1124] 0 \read(t) VAL [\read(t1)=0, arg={0:0}, arg={0:0}, arg={0:0}, t1={11:0}, t2={13:0}, t3={10:0}, t4={8:0}, t5={12:0}, v={0:0}] [L1092] 2 v = malloc(sizeof(char)) [L1093] 2 return 0; [L1109] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\read(t1)=0, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={11:0}, t2={13:0}, t3={10:0}, t4={8:0}, t5={12:0}, v={6:0}] [L1110] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={11:0}, t2={13:0}, t3={10:0}, t4={8:0}, t5={12:0}, v={6:0}] [L1097] 3 v[0] = 'X' [L1098] 3 return 0; [L1111] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={11:0}, t2={13:0}, t3={10:0}, t4={8:0}, t5={12:0}, v={6:0}] [L1112] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={11:0}, t2={13:0}, t3={10:0}, t4={8:0}, t5={12:0}, v={6:0}] [L1113] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={11:0}, t2={13:0}, t3={10:0}, t4={8:0}, t5={12:0}, v={6:0}] [L1114] 1 \read(t2) VAL [\read(t2)=1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={11:0}, t2={13:0}, t3={10:0}, t4={8:0}, t5={12:0}, v={6:0}] [L1114] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\read(t2)=1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={11:0}, t2={13:0}, t3={10:0}, t4={8:0}, t5={12:0}, v={6:0}] [L1115] 1 \read(t3) VAL [\read(t3)=2, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={11:0}, t2={13:0}, t3={10:0}, t4={8:0}, t5={12:0}, v={6:0}] [L1097] 6 v[0] = 'X' [L1098] 6 return 0; [L1097] 5 v[0] = 'X' [L1098] 5 return 0; [L1102] 4 v[0] = 'Y' [L1103] 4 return 0; [L1115] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\read(t3)=2, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={11:0}, t2={13:0}, t3={10:0}, t4={8:0}, t5={12:0}, v={6:0}] [L1116] 1 \read(t4) VAL [\read(t4)=3, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={11:0}, t2={13:0}, t3={10:0}, t4={8:0}, t5={12:0}, v={6:0}] [L1116] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\read(t4)=3, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={11:0}, t2={13:0}, t3={10:0}, t4={8:0}, t5={12:0}, v={6:0}] [L1117] 1 \read(t5) VAL [\read(t5)=4, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={11:0}, t2={13:0}, t3={10:0}, t4={8:0}, t5={12:0}, v={6:0}] [L1117] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\read(t5)=4, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={11:0}, t2={13:0}, t3={10:0}, t4={8:0}, t5={12:0}, v={6:0}] [L1118] 1 return 0; [L1118] 1 return 0; [L1118] 1 return 0; [L1118] 1 return 0; [L1118] 1 return 0; [L1118] 1 return 0; [L1124] FCALL, JOIN 1 pthread_join(t, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, v={6:0}] [L1125] 0 v[0] [L1088] COND TRUE 0 !expression [L1088] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, v={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.3s, OverallIterations: 44, TraceHistogramMax: 1, AutomataDifference: 16.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 4657 SDtfs, 7459 SDslu, 14204 SDs, 0 SdLazy, 8536 SolverSat, 1019 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 534 GetRequests, 45 SyntacticMatches, 5 SemanticMatches, 484 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4131occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.4s AutomataMinimizationTime, 43 MinimizatonAttempts, 43210 StatesRemovedByMinimization, 41 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 984 NumberOfCodeBlocks, 984 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 900 ConstructedInterpolants, 0 QuantifiedInterpolants, 216521 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 43 InterpolantComputations, 43 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...