/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:14:07,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:14:07,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:14:07,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:14:07,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:14:07,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:14:07,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:14:07,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:14:07,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:14:07,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:14:07,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:14:07,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:14:07,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:14:07,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:14:07,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:14:07,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:14:07,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:14:07,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:14:07,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:14:07,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:14:07,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:14:07,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:14:07,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:14:07,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:14:07,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 05:14:07,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 05:14:07,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 05:14:07,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 05:14:07,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 05:14:07,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 05:14:07,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:14:07,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:14:07,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:14:07,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:14:07,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:14:07,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:14:07,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:14:07,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:14:07,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:14:07,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:14:07,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:14:07,416 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-MCR.epf [2019-12-28 05:14:07,449 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:14:07,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:14:07,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:14:07,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:14:07,455 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:14:07,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:14:07,455 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:14:07,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:14:07,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:14:07,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:14:07,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:14:07,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:14:07,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:14:07,459 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:14:07,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:14:07,459 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:14:07,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:14:07,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:14:07,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:14:07,460 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:14:07,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:14:07,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:14:07,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:14:07,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:14:07,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:14:07,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:14:07,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:14:07,461 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:14:07,462 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:14:07,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:14:07,462 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:14:07,462 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:14:07,725 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:14:07,745 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:14:07,750 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:14:07,752 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:14:07,754 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:14:07,755 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2019-12-28 05:14:07,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e86fa778/5a59a21c026d481aa45cacb1dfd46348/FLAG958c00de0 [2019-12-28 05:14:08,406 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:14:08,408 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2019-12-28 05:14:08,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e86fa778/5a59a21c026d481aa45cacb1dfd46348/FLAG958c00de0 [2019-12-28 05:14:08,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e86fa778/5a59a21c026d481aa45cacb1dfd46348 [2019-12-28 05:14:08,659 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:14:08,660 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:14:08,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:14:08,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:14:08,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:14:08,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:14:08" (1/1) ... [2019-12-28 05:14:08,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c2950a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:08, skipping insertion in model container [2019-12-28 05:14:08,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:14:08" (1/1) ... [2019-12-28 05:14:08,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:14:08,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:14:09,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:14:09,210 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:14:09,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:14:09,340 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:14:09,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:09 WrapperNode [2019-12-28 05:14:09,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:14:09,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:14:09,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:14:09,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:14:09,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:09" (1/1) ... [2019-12-28 05:14:09,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:09" (1/1) ... [2019-12-28 05:14:09,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:14:09,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:14:09,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:14:09,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:14:09,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:09" (1/1) ... [2019-12-28 05:14:09,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:09" (1/1) ... [2019-12-28 05:14:09,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:09" (1/1) ... [2019-12-28 05:14:09,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:09" (1/1) ... [2019-12-28 05:14:09,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:09" (1/1) ... [2019-12-28 05:14:09,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:09" (1/1) ... [2019-12-28 05:14:09,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:09" (1/1) ... [2019-12-28 05:14:09,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:14:09,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:14:09,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:14:09,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:14:09,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:09" (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 [2019-12-28 05:14:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:14:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 05:14:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:14:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:14:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 05:14:09,500 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 05:14:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 05:14:09,500 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 05:14:09,501 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 05:14:09,501 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 05:14:09,501 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-28 05:14:09,501 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-28 05:14:09,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 05:14:09,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:14:09,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:14:09,503 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 05:14:09,875 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:14:09,876 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 05:14:09,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:14:09 BoogieIcfgContainer [2019-12-28 05:14:09,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:14:09,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:14:09,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:14:09,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:14:09,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:14:08" (1/3) ... [2019-12-28 05:14:09,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c3ee00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:14:09, skipping insertion in model container [2019-12-28 05:14:09,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:09" (2/3) ... [2019-12-28 05:14:09,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c3ee00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:14:09, skipping insertion in model container [2019-12-28 05:14:09,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:14:09" (3/3) ... [2019-12-28 05:14:09,890 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_pso.opt.i [2019-12-28 05:14:09,900 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:14:09,900 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:14:09,909 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:14:09,910 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:14:09,940 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,941 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,941 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,941 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,942 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,942 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,943 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,943 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,943 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,943 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,944 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,944 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,944 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,945 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,945 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,945 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,945 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,946 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,946 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,946 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,947 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,947 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,947 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,948 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,952 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,952 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,952 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,953 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,967 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,968 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,968 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,968 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,971 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,971 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,972 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,972 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,980 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,980 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,981 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,981 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:09,994 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-28 05:14:10,011 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:14:10,011 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:14:10,012 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:14:10,012 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:14:10,012 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:14:10,012 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:14:10,012 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:14:10,013 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:14:10,025 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 65 transitions [2019-12-28 05:14:10,322 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5473 states. [2019-12-28 05:14:10,325 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states. [2019-12-28 05:14:10,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-28 05:14:10,359 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:10,361 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] [2019-12-28 05:14:10,361 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:10,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:10,369 INFO L82 PathProgramCache]: Analyzing trace with hash 433648018, now seen corresponding path program 1 times [2019-12-28 05:14:10,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:10,382 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090525410] [2019-12-28 05:14:10,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:10,913 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090525410] [2019-12-28 05:14:10,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:10,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 05:14:10,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [857720297] [2019-12-28 05:14:10,916 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:10,925 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:10,950 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 37 states and 36 transitions. [2019-12-28 05:14:10,950 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:10,955 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:10,956 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:14:10,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:10,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:14:10,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 05:14:10,973 INFO L87 Difference]: Start difference. First operand 5473 states. Second operand 4 states. [2019-12-28 05:14:11,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:11,172 INFO L93 Difference]: Finished difference Result 5710 states and 21935 transitions. [2019-12-28 05:14:11,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:14:11,174 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-12-28 05:14:11,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:11,239 INFO L225 Difference]: With dead ends: 5710 [2019-12-28 05:14:11,240 INFO L226 Difference]: Without dead ends: 2394 [2019-12-28 05:14:11,243 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 [2019-12-28 05:14:11,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2019-12-28 05:14:11,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2394. [2019-12-28 05:14:11,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2394 states. [2019-12-28 05:14:11,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2394 states to 2394 states and 8938 transitions. [2019-12-28 05:14:11,474 INFO L78 Accepts]: Start accepts. Automaton has 2394 states and 8938 transitions. Word has length 36 [2019-12-28 05:14:11,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:11,476 INFO L462 AbstractCegarLoop]: Abstraction has 2394 states and 8938 transitions. [2019-12-28 05:14:11,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:14:11,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2394 states and 8938 transitions. [2019-12-28 05:14:11,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-28 05:14:11,482 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:11,482 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] [2019-12-28 05:14:11,483 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:11,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:11,488 INFO L82 PathProgramCache]: Analyzing trace with hash -895431090, now seen corresponding path program 1 times [2019-12-28 05:14:11,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:11,489 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133036004] [2019-12-28 05:14:11,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:11,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:11,710 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133036004] [2019-12-28 05:14:11,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:11,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:14:11,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1252188357] [2019-12-28 05:14:11,711 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:11,717 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:11,725 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 50 states and 61 transitions. [2019-12-28 05:14:11,726 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:11,728 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:11,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:14:11,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:11,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:14:11,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:14:11,732 INFO L87 Difference]: Start difference. First operand 2394 states and 8938 transitions. Second operand 5 states. [2019-12-28 05:14:11,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:11,860 INFO L93 Difference]: Finished difference Result 2565 states and 9322 transitions. [2019-12-28 05:14:11,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:14:11,860 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-12-28 05:14:11,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:11,881 INFO L225 Difference]: With dead ends: 2565 [2019-12-28 05:14:11,882 INFO L226 Difference]: Without dead ends: 2310 [2019-12-28 05:14:11,882 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:14:11,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2019-12-28 05:14:11,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 2310. [2019-12-28 05:14:11,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2310 states. [2019-12-28 05:14:11,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 8546 transitions. [2019-12-28 05:14:11,980 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 8546 transitions. Word has length 37 [2019-12-28 05:14:11,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:11,982 INFO L462 AbstractCegarLoop]: Abstraction has 2310 states and 8546 transitions. [2019-12-28 05:14:11,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:14:11,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 8546 transitions. [2019-12-28 05:14:11,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-28 05:14:11,988 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:11,989 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] [2019-12-28 05:14:11,989 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:11,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:11,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1455477097, now seen corresponding path program 1 times [2019-12-28 05:14:11,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:11,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118576409] [2019-12-28 05:14:11,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:12,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:12,142 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118576409] [2019-12-28 05:14:12,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:12,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:14:12,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1488781927] [2019-12-28 05:14:12,143 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:12,148 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:12,156 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 59 states and 78 transitions. [2019-12-28 05:14:12,157 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:12,157 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:12,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:14:12,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:12,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:14:12,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:14:12,159 INFO L87 Difference]: Start difference. First operand 2310 states and 8546 transitions. Second operand 6 states. [2019-12-28 05:14:12,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:12,286 INFO L93 Difference]: Finished difference Result 2175 states and 7682 transitions. [2019-12-28 05:14:12,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:14:12,288 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-12-28 05:14:12,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:12,304 INFO L225 Difference]: With dead ends: 2175 [2019-12-28 05:14:12,306 INFO L226 Difference]: Without dead ends: 1932 [2019-12-28 05:14:12,306 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 [2019-12-28 05:14:12,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2019-12-28 05:14:12,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1932. [2019-12-28 05:14:12,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1932 states. [2019-12-28 05:14:12,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 6908 transitions. [2019-12-28 05:14:12,433 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 6908 transitions. Word has length 38 [2019-12-28 05:14:12,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:12,436 INFO L462 AbstractCegarLoop]: Abstraction has 1932 states and 6908 transitions. [2019-12-28 05:14:12,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:14:12,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 6908 transitions. [2019-12-28 05:14:12,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-28 05:14:12,447 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:12,447 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, 1] [2019-12-28 05:14:12,447 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:12,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:12,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1169485641, now seen corresponding path program 1 times [2019-12-28 05:14:12,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:12,449 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193151646] [2019-12-28 05:14:12,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:12,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:12,644 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193151646] [2019-12-28 05:14:12,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:12,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:14:12,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1810445247] [2019-12-28 05:14:12,645 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:12,651 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:12,662 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 64 states and 87 transitions. [2019-12-28 05:14:12,662 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:12,662 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:12,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:14:12,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:12,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:14:12,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:14:12,664 INFO L87 Difference]: Start difference. First operand 1932 states and 6908 transitions. Second operand 7 states. [2019-12-28 05:14:12,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:12,803 INFO L93 Difference]: Finished difference Result 1365 states and 4532 transitions. [2019-12-28 05:14:12,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:14:12,804 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-12-28 05:14:12,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:12,813 INFO L225 Difference]: With dead ends: 1365 [2019-12-28 05:14:12,813 INFO L226 Difference]: Without dead ends: 1176 [2019-12-28 05:14:12,814 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 [2019-12-28 05:14:12,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2019-12-28 05:14:12,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1176. [2019-12-28 05:14:12,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1176 states. [2019-12-28 05:14:12,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 3884 transitions. [2019-12-28 05:14:12,854 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 3884 transitions. Word has length 39 [2019-12-28 05:14:12,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:12,854 INFO L462 AbstractCegarLoop]: Abstraction has 1176 states and 3884 transitions. [2019-12-28 05:14:12,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:14:12,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 3884 transitions. [2019-12-28 05:14:12,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:14:12,858 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:12,858 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, 1, 1] [2019-12-28 05:14:12,858 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:12,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:12,859 INFO L82 PathProgramCache]: Analyzing trace with hash -985222538, now seen corresponding path program 1 times [2019-12-28 05:14:12,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:12,860 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730759585] [2019-12-28 05:14:12,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:13,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:13,053 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730759585] [2019-12-28 05:14:13,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:13,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 05:14:13,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [847755602] [2019-12-28 05:14:13,055 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:13,062 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:13,118 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 65 states and 88 transitions. [2019-12-28 05:14:13,118 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:13,119 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:13,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:14:13,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:13,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:14:13,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:14:13,123 INFO L87 Difference]: Start difference. First operand 1176 states and 3884 transitions. Second operand 8 states. [2019-12-28 05:14:13,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:13,257 INFO L93 Difference]: Finished difference Result 1725 states and 5777 transitions. [2019-12-28 05:14:13,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:14:13,257 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2019-12-28 05:14:13,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:13,264 INFO L225 Difference]: With dead ends: 1725 [2019-12-28 05:14:13,265 INFO L226 Difference]: Without dead ends: 876 [2019-12-28 05:14:13,265 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-28 05:14:13,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2019-12-28 05:14:13,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2019-12-28 05:14:13,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-12-28 05:14:13,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 2888 transitions. [2019-12-28 05:14:13,292 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 2888 transitions. Word has length 40 [2019-12-28 05:14:13,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:13,292 INFO L462 AbstractCegarLoop]: Abstraction has 876 states and 2888 transitions. [2019-12-28 05:14:13,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:14:13,293 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 2888 transitions. [2019-12-28 05:14:13,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:14:13,295 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:13,295 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, 1, 1] [2019-12-28 05:14:13,295 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:13,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:13,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1459721732, now seen corresponding path program 2 times [2019-12-28 05:14:13,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:13,297 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373861102] [2019-12-28 05:14:13,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:13,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:13,419 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373861102] [2019-12-28 05:14:13,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:13,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:14:13,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [444378605] [2019-12-28 05:14:13,420 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:13,426 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:13,437 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 53 states and 64 transitions. [2019-12-28 05:14:13,437 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:13,437 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:13,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:14:13,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:13,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:14:13,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:14:13,439 INFO L87 Difference]: Start difference. First operand 876 states and 2888 transitions. Second operand 7 states. [2019-12-28 05:14:13,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:13,558 INFO L93 Difference]: Finished difference Result 1389 states and 4670 transitions. [2019-12-28 05:14:13,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:14:13,559 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-28 05:14:13,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:13,564 INFO L225 Difference]: With dead ends: 1389 [2019-12-28 05:14:13,565 INFO L226 Difference]: Without dead ends: 768 [2019-12-28 05:14:13,565 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:14:13,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2019-12-28 05:14:13,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 768. [2019-12-28 05:14:13,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2019-12-28 05:14:13,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 2576 transitions. [2019-12-28 05:14:13,588 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 2576 transitions. Word has length 40 [2019-12-28 05:14:13,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:13,588 INFO L462 AbstractCegarLoop]: Abstraction has 768 states and 2576 transitions. [2019-12-28 05:14:13,588 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:14:13,588 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 2576 transitions. [2019-12-28 05:14:13,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:14:13,591 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:13,592 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, 1, 1] [2019-12-28 05:14:13,592 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:13,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:13,592 INFO L82 PathProgramCache]: Analyzing trace with hash -353081860, now seen corresponding path program 3 times [2019-12-28 05:14:13,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:13,593 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105112951] [2019-12-28 05:14:13,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:13,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:13,746 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105112951] [2019-12-28 05:14:13,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:13,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:14:13,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [83061305] [2019-12-28 05:14:13,747 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:13,751 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:13,760 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 45 states and 48 transitions. [2019-12-28 05:14:13,760 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:13,760 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:13,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:14:13,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:13,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:14:13,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:14:13,762 INFO L87 Difference]: Start difference. First operand 768 states and 2576 transitions. Second operand 7 states. [2019-12-28 05:14:13,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:13,860 INFO L93 Difference]: Finished difference Result 1254 states and 4277 transitions. [2019-12-28 05:14:13,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:14:13,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-28 05:14:13,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:13,866 INFO L225 Difference]: With dead ends: 1254 [2019-12-28 05:14:13,866 INFO L226 Difference]: Without dead ends: 717 [2019-12-28 05:14:13,867 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 [2019-12-28 05:14:13,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-12-28 05:14:13,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2019-12-28 05:14:13,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2019-12-28 05:14:13,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 2432 transitions. [2019-12-28 05:14:13,889 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 2432 transitions. Word has length 40 [2019-12-28 05:14:13,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:13,889 INFO L462 AbstractCegarLoop]: Abstraction has 717 states and 2432 transitions. [2019-12-28 05:14:13,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:14:13,890 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 2432 transitions. [2019-12-28 05:14:13,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:14:13,891 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:13,892 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, 1, 1] [2019-12-28 05:14:13,892 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:13,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:13,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1457383704, now seen corresponding path program 4 times [2019-12-28 05:14:13,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:13,893 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120168363] [2019-12-28 05:14:13,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:14,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:14,031 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120168363] [2019-12-28 05:14:14,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:14,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:14:14,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [688041599] [2019-12-28 05:14:14,032 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:14,039 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:14,051 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 41 states and 40 transitions. [2019-12-28 05:14:14,052 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:14,052 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:14,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:14:14,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:14,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:14:14,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:14:14,110 INFO L87 Difference]: Start difference. First operand 717 states and 2432 transitions. Second operand 7 states. [2019-12-28 05:14:14,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:14,247 INFO L93 Difference]: Finished difference Result 555 states and 1838 transitions. [2019-12-28 05:14:14,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:14:14,248 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-28 05:14:14,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:14,248 INFO L225 Difference]: With dead ends: 555 [2019-12-28 05:14:14,248 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 05:14:14,249 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:14:14,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 05:14:14,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 05:14:14,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 05:14:14,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 05:14:14,250 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2019-12-28 05:14:14,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:14,250 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 05:14:14,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:14:14,250 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 05:14:14,251 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 05:14:14,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:14:14 BasicIcfg [2019-12-28 05:14:14,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:14:14,260 INFO L168 Benchmark]: Toolchain (without parser) took 5598.84 ms. Allocated memory was 139.5 MB in the beginning and 314.0 MB in the end (delta: 174.6 MB). Free memory was 101.6 MB in the beginning and 241.1 MB in the end (delta: -139.5 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:14,261 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-28 05:14:14,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.94 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 101.4 MB in the beginning and 160.9 MB in the end (delta: -59.5 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:14,263 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.97 ms. Allocated memory is still 203.9 MB. Free memory was 160.2 MB in the beginning and 158.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:14,264 INFO L168 Benchmark]: Boogie Preprocessor took 28.93 ms. Allocated memory is still 203.9 MB. Free memory was 158.3 MB in the beginning and 157.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:14,265 INFO L168 Benchmark]: RCFGBuilder took 457.06 ms. Allocated memory is still 203.9 MB. Free memory was 157.0 MB in the beginning and 134.6 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:14,265 INFO L168 Benchmark]: TraceAbstraction took 4375.54 ms. Allocated memory was 203.9 MB in the beginning and 314.0 MB in the end (delta: 110.1 MB). Free memory was 134.0 MB in the beginning and 241.1 MB in the end (delta: -107.1 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:14,270 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 679.94 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 101.4 MB in the beginning and 160.9 MB in the end (delta: -59.5 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.97 ms. Allocated memory is still 203.9 MB. Free memory was 160.2 MB in the beginning and 158.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.93 ms. Allocated memory is still 203.9 MB. Free memory was 158.3 MB in the beginning and 157.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 457.06 ms. Allocated memory is still 203.9 MB. Free memory was 157.0 MB in the beginning and 134.6 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4375.54 ms. Allocated memory was 203.9 MB in the beginning and 314.0 MB in the end (delta: 110.1 MB). Free memory was 134.0 MB in the beginning and 241.1 MB in the end (delta: -107.1 MB). Peak memory consumption was 3.0 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, 65 locations, 1 error locations. Result: SAFE, OverallTime: 4.2s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 479 SDtfs, 637 SDslu, 1362 SDs, 0 SdLazy, 193 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5473occurred 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: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 302 ConstructedInterpolants, 0 QuantifiedInterpolants, 35894 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...