/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:48:08,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:48:08,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:48:08,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:48:08,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:48:08,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:48:08,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:48:08,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:48:08,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:48:08,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:48:08,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:48:08,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:48:08,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:48:08,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:48:08,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:48:08,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:48:08,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:48:08,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:48:08,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:48:08,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:48:08,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:48:08,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:48:08,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:48:08,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:48:08,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 04:48:08,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 04:48:08,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 04:48:08,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 04:48:08,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 04:48:08,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 04:48:08,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:48:08,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:48:08,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:48:08,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:48:08,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:48:08,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:48:08,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:48:08,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:48:08,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:48:08,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:48:08,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:48:08,410 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 04:48:08,424 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:48:08,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:48:08,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:48:08,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:48:08,426 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:48:08,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:48:08,427 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:48:08,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:48:08,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:48:08,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:48:08,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:48:08,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:48:08,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:48:08,428 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:48:08,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:48:08,428 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:48:08,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:48:08,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:48:08,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:48:08,429 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:48:08,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:48:08,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:48:08,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:48:08,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:48:08,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:48:08,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:48:08,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:48:08,431 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:48:08,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:48:08,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:48:08,733 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:48:08,748 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:48:08,752 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:48:08,754 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:48:08,754 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:48:08,756 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2019-12-19 04:48:08,834 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88a9e5482/126a4363365e4f288404c654c240535c/FLAG52734eea1 [2019-12-19 04:48:09,390 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:48:09,391 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2019-12-19 04:48:09,405 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88a9e5482/126a4363365e4f288404c654c240535c/FLAG52734eea1 [2019-12-19 04:48:09,727 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88a9e5482/126a4363365e4f288404c654c240535c [2019-12-19 04:48:09,737 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:48:09,739 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:48:09,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:48:09,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:48:09,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:48:09,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:48:09" (1/1) ... [2019-12-19 04:48:09,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76cb1258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:09, skipping insertion in model container [2019-12-19 04:48:09,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:48:09" (1/1) ... [2019-12-19 04:48:09,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:48:09,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:48:10,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:48:10,362 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:48:10,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:48:10,520 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:48:10,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:10 WrapperNode [2019-12-19 04:48:10,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:48:10,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:48:10,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:48:10,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:48:10,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:10" (1/1) ... [2019-12-19 04:48:10,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:10" (1/1) ... [2019-12-19 04:48:10,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:48:10,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:48:10,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:48:10,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:48:10,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:10" (1/1) ... [2019-12-19 04:48:10,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:10" (1/1) ... [2019-12-19 04:48:10,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:10" (1/1) ... [2019-12-19 04:48:10,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:10" (1/1) ... [2019-12-19 04:48:10,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:10" (1/1) ... [2019-12-19 04:48:10,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:10" (1/1) ... [2019-12-19 04:48:10,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:10" (1/1) ... [2019-12-19 04:48:10,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:48:10,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:48:10,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:48:10,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:48:10,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:10" (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 [2019-12-19 04:48:10,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:48:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:48:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:48:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:48:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:48:10,669 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:48:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:48:10,671 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:48:10,672 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:48:10,672 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:48:10,673 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-19 04:48:10,673 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-19 04:48:10,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:48:10,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:48:10,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:48:10,675 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 04:48:11,006 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:48:11,007 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:48:11,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:48:11 BoogieIcfgContainer [2019-12-19 04:48:11,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:48:11,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:48:11,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:48:11,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:48:11,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:48:09" (1/3) ... [2019-12-19 04:48:11,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1b25db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:48:11, skipping insertion in model container [2019-12-19 04:48:11,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:10" (2/3) ... [2019-12-19 04:48:11,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1b25db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:48:11, skipping insertion in model container [2019-12-19 04:48:11,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:48:11" (3/3) ... [2019-12-19 04:48:11,017 INFO L109 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2019-12-19 04:48:11,028 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:48:11,028 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:48:11,036 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:48:11,037 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:48:11,096 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,096 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,096 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,097 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,097 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,098 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,098 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,098 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,099 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,099 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,099 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,100 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,100 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,100 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,101 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,101 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,101 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,102 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,102 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,102 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,103 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,103 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,103 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,103 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,108 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,108 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,108 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,109 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,126 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,127 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,127 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,127 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,130 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,131 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,131 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,131 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,134 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,134 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,135 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,135 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:11,151 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-19 04:48:11,167 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:48:11,167 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:48:11,167 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:48:11,168 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:48:11,168 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:48:11,168 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:48:11,168 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:48:11,168 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:48:11,178 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 63 transitions [2019-12-19 04:48:11,525 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5471 states. [2019-12-19 04:48:11,528 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states. [2019-12-19 04:48:11,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:48:11,561 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:48:11,563 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:48:11,563 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:48:11,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:48:11,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1464482597, now seen corresponding path program 1 times [2019-12-19 04:48:11,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:48:11,582 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668225689] [2019-12-19 04:48:11,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:48:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:48:11,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:48:11,996 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668225689] [2019-12-19 04:48:11,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:48:11,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:48:11,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661457227] [2019-12-19 04:48:12,003 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:48:12,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:48:12,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:48:12,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:48:12,021 INFO L87 Difference]: Start difference. First operand 5471 states. Second operand 4 states. [2019-12-19 04:48:12,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:48:12,190 INFO L93 Difference]: Finished difference Result 5708 states and 21933 transitions. [2019-12-19 04:48:12,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:48:12,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2019-12-19 04:48:12,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:48:12,236 INFO L225 Difference]: With dead ends: 5708 [2019-12-19 04:48:12,236 INFO L226 Difference]: Without dead ends: 2392 [2019-12-19 04:48:12,237 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:48:12,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2019-12-19 04:48:12,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2392. [2019-12-19 04:48:12,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2392 states. [2019-12-19 04:48:12,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 8936 transitions. [2019-12-19 04:48:12,423 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 8936 transitions. Word has length 34 [2019-12-19 04:48:12,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:48:12,425 INFO L462 AbstractCegarLoop]: Abstraction has 2392 states and 8936 transitions. [2019-12-19 04:48:12,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:48:12,425 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 8936 transitions. [2019-12-19 04:48:12,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 04:48:12,430 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:48:12,430 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:48:12,431 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:48:12,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:48:12,431 INFO L82 PathProgramCache]: Analyzing trace with hash -652001662, now seen corresponding path program 1 times [2019-12-19 04:48:12,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:48:12,432 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767444550] [2019-12-19 04:48:12,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:48:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:48:12,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:48:12,660 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767444550] [2019-12-19 04:48:12,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:48:12,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:48:12,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025149365] [2019-12-19 04:48:12,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:48:12,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:48:12,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:48:12,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:48:12,666 INFO L87 Difference]: Start difference. First operand 2392 states and 8936 transitions. Second operand 5 states. [2019-12-19 04:48:12,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:48:12,801 INFO L93 Difference]: Finished difference Result 2563 states and 9320 transitions. [2019-12-19 04:48:12,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:48:12,802 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-12-19 04:48:12,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:48:12,821 INFO L225 Difference]: With dead ends: 2563 [2019-12-19 04:48:12,821 INFO L226 Difference]: Without dead ends: 2308 [2019-12-19 04:48:12,823 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:48:12,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2019-12-19 04:48:12,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2308. [2019-12-19 04:48:12,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2308 states. [2019-12-19 04:48:12,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2308 states to 2308 states and 8544 transitions. [2019-12-19 04:48:12,935 INFO L78 Accepts]: Start accepts. Automaton has 2308 states and 8544 transitions. Word has length 35 [2019-12-19 04:48:12,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:48:12,935 INFO L462 AbstractCegarLoop]: Abstraction has 2308 states and 8544 transitions. [2019-12-19 04:48:12,935 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:48:12,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2308 states and 8544 transitions. [2019-12-19 04:48:12,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-19 04:48:12,941 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:48:12,941 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:48:12,941 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:48:12,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:48:12,942 INFO L82 PathProgramCache]: Analyzing trace with hash 2093307712, now seen corresponding path program 1 times [2019-12-19 04:48:12,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:48:12,942 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629639798] [2019-12-19 04:48:12,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:48:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:48:13,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:48:13,127 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629639798] [2019-12-19 04:48:13,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:48:13,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:48:13,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892410393] [2019-12-19 04:48:13,129 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:48:13,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:48:13,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:48:13,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:48:13,130 INFO L87 Difference]: Start difference. First operand 2308 states and 8544 transitions. Second operand 6 states. [2019-12-19 04:48:13,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:48:13,262 INFO L93 Difference]: Finished difference Result 2173 states and 7680 transitions. [2019-12-19 04:48:13,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:48:13,263 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-12-19 04:48:13,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:48:13,279 INFO L225 Difference]: With dead ends: 2173 [2019-12-19 04:48:13,279 INFO L226 Difference]: Without dead ends: 1930 [2019-12-19 04:48:13,280 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:48:13,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2019-12-19 04:48:13,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1930. [2019-12-19 04:48:13,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1930 states. [2019-12-19 04:48:13,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 6906 transitions. [2019-12-19 04:48:13,345 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 6906 transitions. Word has length 36 [2019-12-19 04:48:13,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:48:13,346 INFO L462 AbstractCegarLoop]: Abstraction has 1930 states and 6906 transitions. [2019-12-19 04:48:13,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:48:13,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 6906 transitions. [2019-12-19 04:48:13,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-19 04:48:13,362 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:48:13,363 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:48:13,363 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:48:13,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:48:13,364 INFO L82 PathProgramCache]: Analyzing trace with hash 413695457, now seen corresponding path program 1 times [2019-12-19 04:48:13,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:48:13,364 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250377356] [2019-12-19 04:48:13,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:48:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:48:13,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:48:13,566 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250377356] [2019-12-19 04:48:13,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:48:13,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:48:13,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922031676] [2019-12-19 04:48:13,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:48:13,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:48:13,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:48:13,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:48:13,568 INFO L87 Difference]: Start difference. First operand 1930 states and 6906 transitions. Second operand 7 states. [2019-12-19 04:48:13,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:48:13,740 INFO L93 Difference]: Finished difference Result 1363 states and 4530 transitions. [2019-12-19 04:48:13,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:48:13,740 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2019-12-19 04:48:13,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:48:13,750 INFO L225 Difference]: With dead ends: 1363 [2019-12-19 04:48:13,750 INFO L226 Difference]: Without dead ends: 1174 [2019-12-19 04:48:13,752 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:48:13,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2019-12-19 04:48:13,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1174. [2019-12-19 04:48:13,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2019-12-19 04:48:13,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 3882 transitions. [2019-12-19 04:48:13,790 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 3882 transitions. Word has length 37 [2019-12-19 04:48:13,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:48:13,792 INFO L462 AbstractCegarLoop]: Abstraction has 1174 states and 3882 transitions. [2019-12-19 04:48:13,792 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:48:13,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 3882 transitions. [2019-12-19 04:48:13,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-19 04:48:13,796 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:48:13,796 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:48:13,796 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:48:13,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:48:13,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1379899273, now seen corresponding path program 1 times [2019-12-19 04:48:13,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:48:13,797 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349521836] [2019-12-19 04:48:13,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:48:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:48:13,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:48:13,923 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349521836] [2019-12-19 04:48:13,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:48:13,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:48:13,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876356890] [2019-12-19 04:48:13,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:48:13,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:48:13,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:48:13,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:48:13,925 INFO L87 Difference]: Start difference. First operand 1174 states and 3882 transitions. Second operand 6 states. [2019-12-19 04:48:14,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:48:14,009 INFO L93 Difference]: Finished difference Result 1903 states and 6303 transitions. [2019-12-19 04:48:14,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:48:14,009 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-12-19 04:48:14,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:48:14,017 INFO L225 Difference]: With dead ends: 1903 [2019-12-19 04:48:14,018 INFO L226 Difference]: Without dead ends: 1066 [2019-12-19 04:48:14,018 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:48:14,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2019-12-19 04:48:14,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2019-12-19 04:48:14,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2019-12-19 04:48:14,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3498 transitions. [2019-12-19 04:48:14,048 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3498 transitions. Word has length 38 [2019-12-19 04:48:14,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:48:14,048 INFO L462 AbstractCegarLoop]: Abstraction has 1066 states and 3498 transitions. [2019-12-19 04:48:14,048 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:48:14,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3498 transitions. [2019-12-19 04:48:14,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-19 04:48:14,051 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:48:14,052 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:48:14,052 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:48:14,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:48:14,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1718693025, now seen corresponding path program 2 times [2019-12-19 04:48:14,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:48:14,053 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733127288] [2019-12-19 04:48:14,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:48:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:48:14,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:48:14,197 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733127288] [2019-12-19 04:48:14,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:48:14,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:48:14,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828770359] [2019-12-19 04:48:14,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:48:14,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:48:14,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:48:14,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:48:14,200 INFO L87 Difference]: Start difference. First operand 1066 states and 3498 transitions. Second operand 8 states. [2019-12-19 04:48:14,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:48:14,426 INFO L93 Difference]: Finished difference Result 2407 states and 8022 transitions. [2019-12-19 04:48:14,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-19 04:48:14,427 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2019-12-19 04:48:14,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:48:14,435 INFO L225 Difference]: With dead ends: 2407 [2019-12-19 04:48:14,436 INFO L226 Difference]: Without dead ends: 1177 [2019-12-19 04:48:14,436 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-12-19 04:48:14,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2019-12-19 04:48:14,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1015. [2019-12-19 04:48:14,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2019-12-19 04:48:14,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 3330 transitions. [2019-12-19 04:48:14,465 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 3330 transitions. Word has length 38 [2019-12-19 04:48:14,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:48:14,465 INFO L462 AbstractCegarLoop]: Abstraction has 1015 states and 3330 transitions. [2019-12-19 04:48:14,465 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:48:14,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 3330 transitions. [2019-12-19 04:48:14,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-19 04:48:14,468 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:48:14,468 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:48:14,468 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:48:14,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:48:14,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1325953903, now seen corresponding path program 3 times [2019-12-19 04:48:14,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:48:14,469 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428515852] [2019-12-19 04:48:14,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:48:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:48:14,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:48:14,595 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428515852] [2019-12-19 04:48:14,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:48:14,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:48:14,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738583724] [2019-12-19 04:48:14,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:48:14,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:48:14,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:48:14,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:48:14,599 INFO L87 Difference]: Start difference. First operand 1015 states and 3330 transitions. Second operand 7 states. [2019-12-19 04:48:14,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:48:14,725 INFO L93 Difference]: Finished difference Result 1537 states and 5133 transitions. [2019-12-19 04:48:14,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:48:14,727 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-12-19 04:48:14,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:48:14,737 INFO L225 Difference]: With dead ends: 1537 [2019-12-19 04:48:14,738 INFO L226 Difference]: Without dead ends: 1003 [2019-12-19 04:48:14,738 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-12-19 04:48:14,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2019-12-19 04:48:14,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2019-12-19 04:48:14,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2019-12-19 04:48:14,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 3300 transitions. [2019-12-19 04:48:14,767 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 3300 transitions. Word has length 38 [2019-12-19 04:48:14,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:48:14,768 INFO L462 AbstractCegarLoop]: Abstraction has 1003 states and 3300 transitions. [2019-12-19 04:48:14,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:48:14,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 3300 transitions. [2019-12-19 04:48:14,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-19 04:48:14,770 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:48:14,771 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:48:14,771 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:48:14,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:48:14,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1055873953, now seen corresponding path program 4 times [2019-12-19 04:48:14,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:48:14,772 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637437301] [2019-12-19 04:48:14,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:48:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:48:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:48:14,920 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637437301] [2019-12-19 04:48:14,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:48:14,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:48:14,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903057846] [2019-12-19 04:48:14,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:48:14,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:48:14,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:48:14,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:48:14,923 INFO L87 Difference]: Start difference. First operand 1003 states and 3300 transitions. Second operand 7 states. [2019-12-19 04:48:15,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:48:15,026 INFO L93 Difference]: Finished difference Result 841 states and 2706 transitions. [2019-12-19 04:48:15,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:48:15,026 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-12-19 04:48:15,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:48:15,027 INFO L225 Difference]: With dead ends: 841 [2019-12-19 04:48:15,028 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:48:15,028 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:48:15,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:48:15,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:48:15,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:48:15,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:48:15,029 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2019-12-19 04:48:15,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:48:15,029 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:48:15,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:48:15,030 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:48:15,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:48:15,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:48:15 BasicIcfg [2019-12-19 04:48:15,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:48:15,046 INFO L168 Benchmark]: Toolchain (without parser) took 5300.10 ms. Allocated memory was 137.4 MB in the beginning and 322.4 MB in the end (delta: 185.1 MB). Free memory was 100.3 MB in the beginning and 170.7 MB in the end (delta: -70.4 MB). Peak memory consumption was 114.7 MB. Max. memory is 7.1 GB. [2019-12-19 04:48:15,047 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 04:48:15,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 781.82 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 100.1 MB in the beginning and 157.8 MB in the end (delta: -57.7 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:48:15,049 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.22 ms. Allocated memory is still 201.3 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:48:15,050 INFO L168 Benchmark]: Boogie Preprocessor took 26.96 ms. Allocated memory is still 201.3 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:48:15,054 INFO L168 Benchmark]: RCFGBuilder took 409.60 ms. Allocated memory is still 201.3 MB. Free memory was 153.8 MB in the beginning and 132.4 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:48:15,055 INFO L168 Benchmark]: TraceAbstraction took 4027.20 ms. Allocated memory was 201.3 MB in the beginning and 322.4 MB in the end (delta: 121.1 MB). Free memory was 131.8 MB in the beginning and 170.7 MB in the end (delta: -39.0 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. [2019-12-19 04:48:15,062 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 781.82 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 100.1 MB in the beginning and 157.8 MB in the end (delta: -57.7 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.22 ms. Allocated memory is still 201.3 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.96 ms. Allocated memory is still 201.3 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 409.60 ms. Allocated memory is still 201.3 MB. Free memory was 153.8 MB in the beginning and 132.4 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4027.20 ms. Allocated memory was 201.3 MB in the beginning and 322.4 MB in the end (delta: 121.1 MB). Free memory was 131.8 MB in the beginning and 170.7 MB in the end (delta: -39.0 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 63 locations, 1 error locations. Result: SAFE, OverallTime: 3.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 472 SDtfs, 786 SDslu, 1322 SDs, 0 SdLazy, 180 SolverSat, 89 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5471occurred 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: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 162 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 29326 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...