/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/concurrent/pthreads/forkFork.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 23:03:04,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 23:03:04,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 23:03:04,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 23:03:04,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 23:03:04,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 23:03:04,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 23:03:04,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 23:03:04,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 23:03:04,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 23:03:04,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 23:03:04,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 23:03:04,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 23:03:04,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 23:03:04,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 23:03:04,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 23:03:04,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 23:03:04,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 23:03:04,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 23:03:04,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 23:03:04,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 23:03:04,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 23:03:04,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 23:03:04,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 23:03:04,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 23:03:04,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 23:03:04,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 23:03:04,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 23:03:04,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 23:03:04,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 23:03:04,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 23:03:04,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 23:03:04,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 23:03:04,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 23:03:04,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 23:03:04,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 23:03:04,457 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-05 23:03:04,480 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 23:03:04,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 23:03:04,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 23:03:04,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 23:03:04,482 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 23:03:04,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 23:03:04,482 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 23:03:04,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 23:03:04,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 23:03:04,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 23:03:04,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 23:03:04,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 23:03:04,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 23:03:04,484 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 23:03:04,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 23:03:04,484 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 23:03:04,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 23:03:04,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 23:03:04,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 23:03:04,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 23:03:04,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 23:03:04,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:03:04,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 23:03:04,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 23:03:04,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 23:03:04,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 23:03:04,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 23:03:04,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 23:03:04,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 23:03:04,487 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 23:03:04,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 23:03:04,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 23:03:04,776 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 23:03:04,777 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 23:03:04,778 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 23:03:04,778 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkFork.c [2020-10-05 23:03:04,840 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5513e0a1/85c0bb0d29a2464c8223031bb34b92e9/FLAG3411915ae [2020-10-05 23:03:05,332 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 23:03:05,333 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkFork.c [2020-10-05 23:03:05,333 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-05 23:03:05,334 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-05 23:03:05,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5513e0a1/85c0bb0d29a2464c8223031bb34b92e9/FLAG3411915ae [2020-10-05 23:03:05,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5513e0a1/85c0bb0d29a2464c8223031bb34b92e9 [2020-10-05 23:03:05,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 23:03:05,724 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 23:03:05,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 23:03:05,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 23:03:05,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 23:03:05,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:03:05" (1/1) ... [2020-10-05 23:03:05,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41addc13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:03:05, skipping insertion in model container [2020-10-05 23:03:05,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:03:05" (1/1) ... [2020-10-05 23:03:05,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 23:03:05,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 23:03:06,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:03:06,028 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 23:03:06,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:03:06,061 INFO L208 MainTranslator]: Completed translation [2020-10-05 23:03:06,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:03:06 WrapperNode [2020-10-05 23:03:06,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 23:03:06,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 23:03:06,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 23:03:06,064 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 23:03:06,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:03:06" (1/1) ... [2020-10-05 23:03:06,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:03:06" (1/1) ... [2020-10-05 23:03:06,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 23:03:06,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 23:03:06,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 23:03:06,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 23:03:06,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:03:06" (1/1) ... [2020-10-05 23:03:06,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:03:06" (1/1) ... [2020-10-05 23:03:06,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:03:06" (1/1) ... [2020-10-05 23:03:06,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:03:06" (1/1) ... [2020-10-05 23:03:06,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:03:06" (1/1) ... [2020-10-05 23:03:06,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:03:06" (1/1) ... [2020-10-05 23:03:06,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:03:06" (1/1) ... [2020-10-05 23:03:06,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 23:03:06,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 23:03:06,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 23:03:06,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 23:03:06,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:03:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:03:06,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-05 23:03:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 23:03:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2020-10-05 23:03:06,180 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2020-10-05 23:03:06,180 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-05 23:03:06,181 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-05 23:03:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 23:03:06,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 23:03:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-05 23:03:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-05 23:03:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-05 23:03:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 23:03:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 23:03:06,183 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 23:03:06,475 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 23:03:06,476 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-05 23:03:06,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:03:06 BoogieIcfgContainer [2020-10-05 23:03:06,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 23:03:06,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 23:03:06,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 23:03:06,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 23:03:06,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 11:03:05" (1/3) ... [2020-10-05 23:03:06,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776c79db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:03:06, skipping insertion in model container [2020-10-05 23:03:06,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:03:06" (2/3) ... [2020-10-05 23:03:06,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776c79db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:03:06, skipping insertion in model container [2020-10-05 23:03:06,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:03:06" (3/3) ... [2020-10-05 23:03:06,487 INFO L109 eAbstractionObserver]: Analyzing ICFG forkFork.c [2020-10-05 23:03:06,498 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 23:03:06,499 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 23:03:06,508 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-05 23:03:06,510 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 23:03:06,586 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,586 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,586 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,587 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,587 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,587 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,587 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,587 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,588 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,588 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,588 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,589 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,589 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,590 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,592 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,592 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,592 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,593 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,593 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,593 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,593 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,593 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,594 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,594 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,595 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,595 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,596 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,599 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,599 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,599 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,599 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,600 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,600 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,603 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,603 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,603 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,603 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,603 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,604 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,606 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,607 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,607 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,608 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,608 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,608 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,610 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,610 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,610 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,610 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,611 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,611 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,611 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,612 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,612 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,613 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,613 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,613 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,613 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,614 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,614 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,614 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,614 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,615 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,616 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,616 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,617 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,617 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,618 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,624 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,624 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,624 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,624 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,625 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,625 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,625 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,625 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,626 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,637 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,638 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,638 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,638 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,638 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,639 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,639 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,639 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,639 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,640 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,640 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,640 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,640 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,641 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,641 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,641 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,644 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,644 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,645 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,645 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,645 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,645 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,646 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,646 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,646 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:03:06,683 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-05 23:03:06,702 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 23:03:06,702 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 23:03:06,702 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 23:03:06,703 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 23:03:06,703 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 23:03:06,703 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 23:03:06,703 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 23:03:06,703 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 23:03:06,722 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 83 transitions, 194 flow [2020-10-05 23:03:06,723 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 89 places, 83 transitions, 194 flow [2020-10-05 23:03:06,778 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2020-10-05 23:03:06,778 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-05 23:03:06,783 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 89 events. 2/89 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 98. Up to 5 conditions per place. [2020-10-05 23:03:06,786 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 89 places, 83 transitions, 194 flow [2020-10-05 23:03:06,833 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2020-10-05 23:03:06,834 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-05 23:03:06,836 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 89 events. 2/89 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 98. Up to 5 conditions per place. [2020-10-05 23:03:06,840 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 334 [2020-10-05 23:03:06,842 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 23:03:08,468 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-05 23:03:08,581 INFO L206 etLargeBlockEncoding]: Checked pairs total: 404 [2020-10-05 23:03:08,582 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-10-05 23:03:08,588 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 24 transitions, 76 flow [2020-10-05 23:03:08,601 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 50 states. [2020-10-05 23:03:08,604 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-05 23:03:08,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-05 23:03:08,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:03:08,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-05 23:03:08,618 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-05 23:03:08,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:03:08,624 INFO L82 PathProgramCache]: Analyzing trace with hash 257386320, now seen corresponding path program 1 times [2020-10-05 23:03:08,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:03:08,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965509471] [2020-10-05 23:03:08,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:03:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:03:08,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:03:08,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965509471] [2020-10-05 23:03:08,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:03:08,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 23:03:08,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208662137] [2020-10-05 23:03:08,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 23:03:08,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:03:08,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 23:03:08,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:03:08,908 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 6 states. [2020-10-05 23:03:09,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:03:09,061 INFO L93 Difference]: Finished difference Result 44 states and 73 transitions. [2020-10-05 23:03:09,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:03:09,062 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-10-05 23:03:09,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:03:09,073 INFO L225 Difference]: With dead ends: 44 [2020-10-05 23:03:09,073 INFO L226 Difference]: Without dead ends: 41 [2020-10-05 23:03:09,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-05 23:03:09,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-05 23:03:09,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-05 23:03:09,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-05 23:03:09,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 69 transitions. [2020-10-05 23:03:09,112 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 69 transitions. Word has length 5 [2020-10-05 23:03:09,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:03:09,113 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 69 transitions. [2020-10-05 23:03:09,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 23:03:09,113 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 69 transitions. [2020-10-05 23:03:09,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 23:03:09,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:03:09,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:03:09,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 23:03:09,115 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-05 23:03:09,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:03:09,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1380238106, now seen corresponding path program 1 times [2020-10-05 23:03:09,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:03:09,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216645235] [2020-10-05 23:03:09,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:03:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:03:09,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:03:09,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216645235] [2020-10-05 23:03:09,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:03:09,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-05 23:03:09,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324194590] [2020-10-05 23:03:09,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-05 23:03:09,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:03:09,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-05 23:03:09,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-05 23:03:09,294 INFO L87 Difference]: Start difference. First operand 41 states and 69 transitions. Second operand 8 states. [2020-10-05 23:03:09,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:03:09,533 INFO L93 Difference]: Finished difference Result 51 states and 81 transitions. [2020-10-05 23:03:09,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-05 23:03:09,533 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-10-05 23:03:09,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:03:09,534 INFO L225 Difference]: With dead ends: 51 [2020-10-05 23:03:09,535 INFO L226 Difference]: Without dead ends: 51 [2020-10-05 23:03:09,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-05 23:03:09,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-05 23:03:09,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2020-10-05 23:03:09,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-05 23:03:09,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 75 transitions. [2020-10-05 23:03:09,544 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 75 transitions. Word has length 10 [2020-10-05 23:03:09,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:03:09,544 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 75 transitions. [2020-10-05 23:03:09,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-05 23:03:09,544 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 75 transitions. [2020-10-05 23:03:09,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 23:03:09,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:03:09,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:03:09,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 23:03:09,546 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-05 23:03:09,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:03:09,546 INFO L82 PathProgramCache]: Analyzing trace with hash -199570406, now seen corresponding path program 2 times [2020-10-05 23:03:09,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:03:09,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170682682] [2020-10-05 23:03:09,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:03:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:03:09,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:03:09,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170682682] [2020-10-05 23:03:09,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:03:09,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-05 23:03:09,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529487837] [2020-10-05 23:03:09,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 23:03:09,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:03:09,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 23:03:09,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:03:09,648 INFO L87 Difference]: Start difference. First operand 45 states and 75 transitions. Second operand 6 states. [2020-10-05 23:03:09,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:03:09,781 INFO L93 Difference]: Finished difference Result 50 states and 75 transitions. [2020-10-05 23:03:09,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 23:03:09,783 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-05 23:03:09,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:03:09,784 INFO L225 Difference]: With dead ends: 50 [2020-10-05 23:03:09,784 INFO L226 Difference]: Without dead ends: 50 [2020-10-05 23:03:09,784 INFO L675 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 [2020-10-05 23:03:09,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-05 23:03:09,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2020-10-05 23:03:09,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-05 23:03:09,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 58 transitions. [2020-10-05 23:03:09,790 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 58 transitions. Word has length 10 [2020-10-05 23:03:09,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:03:09,790 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 58 transitions. [2020-10-05 23:03:09,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 23:03:09,790 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 58 transitions. [2020-10-05 23:03:09,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 23:03:09,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:03:09,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:03:09,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 23:03:09,792 INFO L427 AbstractCegarLoop]: === Iteration 4 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-05 23:03:09,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:03:09,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1138692504, now seen corresponding path program 1 times [2020-10-05 23:03:09,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:03:09,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543872712] [2020-10-05 23:03:09,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:03:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:03:10,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:03:10,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543872712] [2020-10-05 23:03:10,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:03:10,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-05 23:03:10,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972112823] [2020-10-05 23:03:10,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-05 23:03:10,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:03:10,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-05 23:03:10,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-05 23:03:10,103 INFO L87 Difference]: Start difference. First operand 35 states and 58 transitions. Second operand 14 states. [2020-10-05 23:03:10,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:03:10,710 INFO L93 Difference]: Finished difference Result 41 states and 64 transitions. [2020-10-05 23:03:10,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-05 23:03:10,711 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-10-05 23:03:10,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:03:10,713 INFO L225 Difference]: With dead ends: 41 [2020-10-05 23:03:10,713 INFO L226 Difference]: Without dead ends: 33 [2020-10-05 23:03:10,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2020-10-05 23:03:10,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-05 23:03:10,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-05 23:03:10,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-05 23:03:10,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 54 transitions. [2020-10-05 23:03:10,718 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 54 transitions. Word has length 15 [2020-10-05 23:03:10,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:03:10,719 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 54 transitions. [2020-10-05 23:03:10,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-05 23:03:10,719 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 54 transitions. [2020-10-05 23:03:10,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 23:03:10,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:03:10,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:03:10,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 23:03:10,720 INFO L427 AbstractCegarLoop]: === Iteration 5 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-05 23:03:10,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:03:10,721 INFO L82 PathProgramCache]: Analyzing trace with hash -170034344, now seen corresponding path program 2 times [2020-10-05 23:03:10,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:03:10,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913699240] [2020-10-05 23:03:10,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:03:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:03:10,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:03:10,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913699240] [2020-10-05 23:03:10,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:03:10,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-05 23:03:10,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119327298] [2020-10-05 23:03:10,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-05 23:03:10,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:03:10,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-05 23:03:10,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-05 23:03:10,974 INFO L87 Difference]: Start difference. First operand 33 states and 54 transitions. Second operand 13 states. [2020-10-05 23:03:11,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:03:11,520 INFO L93 Difference]: Finished difference Result 41 states and 63 transitions. [2020-10-05 23:03:11,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-05 23:03:11,521 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-05 23:03:11,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:03:11,522 INFO L225 Difference]: With dead ends: 41 [2020-10-05 23:03:11,522 INFO L226 Difference]: Without dead ends: 32 [2020-10-05 23:03:11,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2020-10-05 23:03:11,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-05 23:03:11,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-05 23:03:11,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-05 23:03:11,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 52 transitions. [2020-10-05 23:03:11,528 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 52 transitions. Word has length 15 [2020-10-05 23:03:11,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:03:11,529 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 52 transitions. [2020-10-05 23:03:11,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-05 23:03:11,529 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 52 transitions. [2020-10-05 23:03:11,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 23:03:11,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:03:11,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:03:11,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 23:03:11,531 INFO L427 AbstractCegarLoop]: === Iteration 6 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-05 23:03:11,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:03:11,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1360401226, now seen corresponding path program 3 times [2020-10-05 23:03:11,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:03:11,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066495152] [2020-10-05 23:03:11,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:03:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:03:11,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:03:11,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066495152] [2020-10-05 23:03:11,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:03:11,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-05 23:03:11,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643004346] [2020-10-05 23:03:11,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-05 23:03:11,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:03:11,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-05 23:03:11,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-05 23:03:11,831 INFO L87 Difference]: Start difference. First operand 32 states and 52 transitions. Second operand 13 states. [2020-10-05 23:03:12,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:03:12,378 INFO L93 Difference]: Finished difference Result 42 states and 64 transitions. [2020-10-05 23:03:12,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-05 23:03:12,379 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-05 23:03:12,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:03:12,380 INFO L225 Difference]: With dead ends: 42 [2020-10-05 23:03:12,380 INFO L226 Difference]: Without dead ends: 31 [2020-10-05 23:03:12,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2020-10-05 23:03:12,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-05 23:03:12,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-05 23:03:12,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-05 23:03:12,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 49 transitions. [2020-10-05 23:03:12,386 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 49 transitions. Word has length 15 [2020-10-05 23:03:12,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:03:12,386 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 49 transitions. [2020-10-05 23:03:12,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-05 23:03:12,386 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2020-10-05 23:03:12,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 23:03:12,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:03:12,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:03:12,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 23:03:12,388 INFO L427 AbstractCegarLoop]: === Iteration 7 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-05 23:03:12,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:03:12,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1481937188, now seen corresponding path program 4 times [2020-10-05 23:03:12,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:03:12,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554114445] [2020-10-05 23:03:12,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:03:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:03:12,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:03:12,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554114445] [2020-10-05 23:03:12,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:03:12,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-05 23:03:12,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886609857] [2020-10-05 23:03:12,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-05 23:03:12,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:03:12,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-05 23:03:12,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-05 23:03:12,617 INFO L87 Difference]: Start difference. First operand 31 states and 49 transitions. Second operand 13 states. [2020-10-05 23:03:13,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:03:13,166 INFO L93 Difference]: Finished difference Result 45 states and 69 transitions. [2020-10-05 23:03:13,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-05 23:03:13,167 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-05 23:03:13,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:03:13,168 INFO L225 Difference]: With dead ends: 45 [2020-10-05 23:03:13,168 INFO L226 Difference]: Without dead ends: 29 [2020-10-05 23:03:13,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2020-10-05 23:03:13,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-05 23:03:13,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-05 23:03:13,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-05 23:03:13,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. [2020-10-05 23:03:13,176 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 44 transitions. Word has length 15 [2020-10-05 23:03:13,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:03:13,176 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 44 transitions. [2020-10-05 23:03:13,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-05 23:03:13,176 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2020-10-05 23:03:13,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 23:03:13,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:03:13,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:03:13,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 23:03:13,177 INFO L427 AbstractCegarLoop]: === Iteration 8 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-05 23:03:13,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:03:13,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1803391854, now seen corresponding path program 5 times [2020-10-05 23:03:13,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:03:13,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543952457] [2020-10-05 23:03:13,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:03:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:03:13,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:03:13,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543952457] [2020-10-05 23:03:13,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:03:13,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-05 23:03:13,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757798334] [2020-10-05 23:03:13,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-05 23:03:13,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:03:13,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-05 23:03:13,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-05 23:03:13,407 INFO L87 Difference]: Start difference. First operand 29 states and 44 transitions. Second operand 13 states. [2020-10-05 23:03:13,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:03:13,924 INFO L93 Difference]: Finished difference Result 47 states and 72 transitions. [2020-10-05 23:03:13,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-05 23:03:13,925 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-05 23:03:13,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:03:13,926 INFO L225 Difference]: With dead ends: 47 [2020-10-05 23:03:13,926 INFO L226 Difference]: Without dead ends: 27 [2020-10-05 23:03:13,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2020-10-05 23:03:13,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-05 23:03:13,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-05 23:03:13,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-05 23:03:13,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2020-10-05 23:03:13,931 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 40 transitions. Word has length 15 [2020-10-05 23:03:13,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:03:13,931 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 40 transitions. [2020-10-05 23:03:13,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-05 23:03:13,932 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2020-10-05 23:03:13,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 23:03:13,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:03:13,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:03:13,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 23:03:13,933 INFO L427 AbstractCegarLoop]: === Iteration 9 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-05 23:03:13,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:03:13,933 INFO L82 PathProgramCache]: Analyzing trace with hash -613115126, now seen corresponding path program 6 times [2020-10-05 23:03:13,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:03:13,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36962655] [2020-10-05 23:03:13,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:03:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:03:14,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:03:14,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36962655] [2020-10-05 23:03:14,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:03:14,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-05 23:03:14,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890684767] [2020-10-05 23:03:14,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-05 23:03:14,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:03:14,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-05 23:03:14,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-05 23:03:14,167 INFO L87 Difference]: Start difference. First operand 27 states and 40 transitions. Second operand 13 states. [2020-10-05 23:03:14,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:03:14,663 INFO L93 Difference]: Finished difference Result 47 states and 71 transitions. [2020-10-05 23:03:14,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-05 23:03:14,663 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-05 23:03:14,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:03:14,664 INFO L225 Difference]: With dead ends: 47 [2020-10-05 23:03:14,665 INFO L226 Difference]: Without dead ends: 26 [2020-10-05 23:03:14,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2020-10-05 23:03:14,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-05 23:03:14,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-05 23:03:14,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-05 23:03:14,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 38 transitions. [2020-10-05 23:03:14,670 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 38 transitions. Word has length 15 [2020-10-05 23:03:14,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:03:14,671 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 38 transitions. [2020-10-05 23:03:14,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-05 23:03:14,671 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 38 transitions. [2020-10-05 23:03:14,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 23:03:14,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:03:14,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:03:14,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 23:03:14,672 INFO L427 AbstractCegarLoop]: === Iteration 10 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-05 23:03:14,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:03:14,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1679512088, now seen corresponding path program 7 times [2020-10-05 23:03:14,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:03:14,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119486978] [2020-10-05 23:03:14,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:03:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:03:14,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:03:14,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119486978] [2020-10-05 23:03:14,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:03:14,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-05 23:03:14,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523076214] [2020-10-05 23:03:14,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-05 23:03:14,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:03:14,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-05 23:03:14,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-10-05 23:03:14,880 INFO L87 Difference]: Start difference. First operand 26 states and 38 transitions. Second operand 13 states. [2020-10-05 23:03:15,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:03:15,285 INFO L93 Difference]: Finished difference Result 25 states and 37 transitions. [2020-10-05 23:03:15,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-05 23:03:15,286 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-05 23:03:15,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:03:15,286 INFO L225 Difference]: With dead ends: 25 [2020-10-05 23:03:15,286 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 23:03:15,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2020-10-05 23:03:15,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 23:03:15,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 23:03:15,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 23:03:15,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 23:03:15,288 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-05 23:03:15,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:03:15,288 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 23:03:15,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-05 23:03:15,288 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 23:03:15,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 23:03:15,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-05 23:03:15,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 11:03:15 BasicIcfg [2020-10-05 23:03:15,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 23:03:15,300 INFO L168 Benchmark]: Toolchain (without parser) took 9574.52 ms. Allocated memory was 140.0 MB in the beginning and 332.4 MB in the end (delta: 192.4 MB). Free memory was 101.0 MB in the beginning and 302.8 MB in the end (delta: -201.8 MB). Peak memory consumption was 172.6 MB. Max. memory is 7.1 GB. [2020-10-05 23:03:15,301 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-05 23:03:15,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.11 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.8 MB in the beginning and 179.3 MB in the end (delta: -78.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-10-05 23:03:15,308 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.81 ms. Allocated memory is still 202.9 MB. Free memory was 179.3 MB in the beginning and 178.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-05 23:03:15,309 INFO L168 Benchmark]: Boogie Preprocessor took 23.43 ms. Allocated memory is still 202.9 MB. Free memory was 178.0 MB in the beginning and 176.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2020-10-05 23:03:15,309 INFO L168 Benchmark]: RCFGBuilder took 358.38 ms. Allocated memory is still 202.9 MB. Free memory was 175.7 MB in the beginning and 153.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-10-05 23:03:15,315 INFO L168 Benchmark]: TraceAbstraction took 8817.13 ms. Allocated memory was 202.9 MB in the beginning and 332.4 MB in the end (delta: 129.5 MB). Free memory was 153.9 MB in the beginning and 302.8 MB in the end (delta: -148.9 MB). Peak memory consumption was 162.6 MB. Max. memory is 7.1 GB. [2020-10-05 23:03:15,323 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 337.11 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.8 MB in the beginning and 179.3 MB in the end (delta: -78.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 32.81 ms. Allocated memory is still 202.9 MB. Free memory was 179.3 MB in the beginning and 178.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.43 ms. Allocated memory is still 202.9 MB. Free memory was 178.0 MB in the beginning and 176.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 358.38 ms. Allocated memory is still 202.9 MB. Free memory was 175.7 MB in the beginning and 153.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8817.13 ms. Allocated memory was 202.9 MB in the beginning and 332.4 MB in the end (delta: 129.5 MB). Free memory was 153.9 MB in the beginning and 302.8 MB in the end (delta: -148.9 MB). Peak memory consumption was 162.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 89 ProgramPointsBefore, 28 ProgramPointsAfterwards, 83 TransitionsBefore, 24 TransitionsAfterwards, 334 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 156 VarBasedMoverChecksPositive, 15 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 404 CheckedPairsTotal, 63 TotalNumberOfCompositions - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 45]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 69 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 83 SDtfs, 381 SDslu, 125 SDs, 0 SdLazy, 1725 SolverSat, 177 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 28171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...