/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/safe020_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:57:15,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:57:15,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:57:15,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:57:15,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:57:15,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:57:15,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:57:15,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:57:15,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:57:15,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:57:15,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:57:15,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:57:15,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:57:15,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:57:15,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:57:15,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:57:15,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:57:15,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:57:15,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:57:15,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:57:15,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:57:15,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:57:15,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:57:15,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:57:15,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:57:15,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:57:15,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:57:15,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:57:15,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:57:15,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:57:15,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:57:15,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:57:15,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:57:15,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:57:15,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:57:15,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:57:15,386 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 04:57:15,421 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:57:15,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:57:15,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:57:15,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:57:15,426 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:57:15,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:57:15,426 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:57:15,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:57:15,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:57:15,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:57:15,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:57:15,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:57:15,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:57:15,428 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:57:15,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:57:15,428 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:57:15,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:57:15,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:57:15,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:57:15,429 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:57:15,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:57:15,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:57:15,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:57:15,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:57:15,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:57:15,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:57:15,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:57:15,430 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:57:15,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:57:15,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:57:15,700 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:57:15,717 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:57:15,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:57:15,723 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:57:15,723 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:57:15,725 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i [2019-12-19 04:57:15,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83c4e108f/95eda7346fcf48ef9875a184beba7d38/FLAGdf7b192fd [2019-12-19 04:57:16,377 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:57:16,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i [2019-12-19 04:57:16,401 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83c4e108f/95eda7346fcf48ef9875a184beba7d38/FLAGdf7b192fd [2019-12-19 04:57:16,638 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83c4e108f/95eda7346fcf48ef9875a184beba7d38 [2019-12-19 04:57:16,648 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:57:16,650 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:57:16,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:57:16,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:57:16,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:57:16,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:57:16" (1/1) ... [2019-12-19 04:57:16,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23967683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:16, skipping insertion in model container [2019-12-19 04:57:16,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:57:16" (1/1) ... [2019-12-19 04:57:16,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:57:16,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:57:17,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:57:17,193 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:57:17,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:57:17,372 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:57:17,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:17 WrapperNode [2019-12-19 04:57:17,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:57:17,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:57:17,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:57:17,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:57:17,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:17" (1/1) ... [2019-12-19 04:57:17,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:17" (1/1) ... [2019-12-19 04:57:17,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:57:17,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:57:17,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:57:17,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:57:17,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:17" (1/1) ... [2019-12-19 04:57:17,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:17" (1/1) ... [2019-12-19 04:57:17,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:17" (1/1) ... [2019-12-19 04:57:17,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:17" (1/1) ... [2019-12-19 04:57:17,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:17" (1/1) ... [2019-12-19 04:57:17,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:17" (1/1) ... [2019-12-19 04:57:17,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:17" (1/1) ... [2019-12-19 04:57:17,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:57:17,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:57:17,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:57:17,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:57:17,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:17" (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 04:57:17,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:57:17,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:57:17,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:57:17,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:57:17,518 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:57:17,520 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:57:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:57:17,521 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:57:17,521 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:57:17,522 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:57:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:57:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:57:17,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:57:17,525 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 04:57:17,888 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:57:17,888 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:57:17,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:57:17 BoogieIcfgContainer [2019-12-19 04:57:17,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:57:17,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:57:17,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:57:17,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:57:17,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:57:16" (1/3) ... [2019-12-19 04:57:17,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387258e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:57:17, skipping insertion in model container [2019-12-19 04:57:17,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:17" (2/3) ... [2019-12-19 04:57:17,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387258e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:57:17, skipping insertion in model container [2019-12-19 04:57:17,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:57:17" (3/3) ... [2019-12-19 04:57:17,899 INFO L109 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc.i [2019-12-19 04:57:17,909 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:57:17,909 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:57:17,917 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:57:17,919 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:57:17,946 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,947 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,947 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,947 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,948 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,948 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,949 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,949 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,949 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,949 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,950 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,950 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,950 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,950 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,951 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,951 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,951 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,951 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,955 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,955 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,956 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,956 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,961 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,962 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,962 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,962 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,966 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,967 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,967 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,967 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:17,980 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:57:17,997 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:57:17,997 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:57:17,997 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:57:17,997 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:57:17,998 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:57:17,998 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:57:17,998 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:57:17,998 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:57:18,009 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-19 04:57:18,093 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-19 04:57:18,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-19 04:57:18,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-19 04:57:18,112 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:57:18,113 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] [2019-12-19 04:57:18,114 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:57:18,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:57:18,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1589731149, now seen corresponding path program 1 times [2019-12-19 04:57:18,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:57:18,130 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607144852] [2019-12-19 04:57:18,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:57:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:57:18,538 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 04:57:18,540 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607144852] [2019-12-19 04:57:18,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:57:18,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:57:18,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231250974] [2019-12-19 04:57:18,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:57:18,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:57:18,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:57:18,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:57:18,567 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-19 04:57:18,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:57:18,712 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-19 04:57:18,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:57:18,714 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-19 04:57:18,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:57:18,739 INFO L225 Difference]: With dead ends: 1294 [2019-12-19 04:57:18,739 INFO L226 Difference]: Without dead ends: 600 [2019-12-19 04:57:18,741 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:57:18,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-19 04:57:18,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-19 04:57:18,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-19 04:57:18,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-19 04:57:18,853 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-19 04:57:18,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:57:18,854 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-19 04:57:18,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:57:18,854 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-19 04:57:18,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:57:18,863 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:57:18,863 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] [2019-12-19 04:57:18,864 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:57:18,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:57:18,864 INFO L82 PathProgramCache]: Analyzing trace with hash 227019057, now seen corresponding path program 1 times [2019-12-19 04:57:18,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:57:18,865 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212121009] [2019-12-19 04:57:18,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:57:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:57:19,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:57:19,053 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212121009] [2019-12-19 04:57:19,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:57:19,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:57:19,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307568507] [2019-12-19 04:57:19,056 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:57:19,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:57:19,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:57:19,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:57:19,057 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-19 04:57:19,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:57:19,139 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-19 04:57:19,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:57:19,140 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-19 04:57:19,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:57:19,146 INFO L225 Difference]: With dead ends: 600 [2019-12-19 04:57:19,146 INFO L226 Difference]: Without dead ends: 537 [2019-12-19 04:57:19,147 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 [2019-12-19 04:57:19,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-19 04:57:19,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-19 04:57:19,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-19 04:57:19,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-19 04:57:19,179 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-19 04:57:19,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:57:19,180 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-19 04:57:19,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:57:19,180 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-19 04:57:19,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:57:19,183 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:57:19,183 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] [2019-12-19 04:57:19,183 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:57:19,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:57:19,184 INFO L82 PathProgramCache]: Analyzing trace with hash -524737327, now seen corresponding path program 1 times [2019-12-19 04:57:19,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:57:19,184 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087127042] [2019-12-19 04:57:19,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:57:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:57:19,313 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 04:57:19,313 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087127042] [2019-12-19 04:57:19,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:57:19,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:57:19,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475931037] [2019-12-19 04:57:19,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:57:19,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:57:19,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:57:19,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:57:19,315 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-19 04:57:19,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:57:19,423 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-19 04:57:19,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:57:19,424 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-19 04:57:19,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:57:19,427 INFO L225 Difference]: With dead ends: 402 [2019-12-19 04:57:19,427 INFO L226 Difference]: Without dead ends: 348 [2019-12-19 04:57:19,428 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 04:57:19,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-19 04:57:19,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-19 04:57:19,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-19 04:57:19,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-19 04:57:19,439 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-19 04:57:19,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:57:19,440 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-19 04:57:19,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:57:19,440 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-19 04:57:19,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:57:19,442 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:57:19,442 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] [2019-12-19 04:57:19,442 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:57:19,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:57:19,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1007154836, now seen corresponding path program 1 times [2019-12-19 04:57:19,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:57:19,443 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001174754] [2019-12-19 04:57:19,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:57:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:57:19,594 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 04:57:19,595 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001174754] [2019-12-19 04:57:19,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:57:19,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:57:19,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158134024] [2019-12-19 04:57:19,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:57:19,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:57:19,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:57:19,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:57:19,598 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 7 states. [2019-12-19 04:57:19,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:57:19,793 INFO L93 Difference]: Finished difference Result 519 states and 1394 transitions. [2019-12-19 04:57:19,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:57:19,794 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 04:57:19,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:57:19,798 INFO L225 Difference]: With dead ends: 519 [2019-12-19 04:57:19,798 INFO L226 Difference]: Without dead ends: 276 [2019-12-19 04:57:19,800 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:57:19,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2019-12-19 04:57:19,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2019-12-19 04:57:19,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2019-12-19 04:57:19,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 725 transitions. [2019-12-19 04:57:19,817 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 725 transitions. Word has length 33 [2019-12-19 04:57:19,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:57:19,818 INFO L462 AbstractCegarLoop]: Abstraction has 276 states and 725 transitions. [2019-12-19 04:57:19,818 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:57:19,819 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 725 transitions. [2019-12-19 04:57:19,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:57:19,822 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:57:19,823 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] [2019-12-19 04:57:19,823 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:57:19,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:57:19,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1391348590, now seen corresponding path program 2 times [2019-12-19 04:57:19,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:57:19,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039369798] [2019-12-19 04:57:19,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:57:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:57:20,057 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 04:57:20,058 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039369798] [2019-12-19 04:57:20,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:57:20,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:57:20,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289704221] [2019-12-19 04:57:20,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:57:20,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:57:20,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:57:20,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:57:20,060 INFO L87 Difference]: Start difference. First operand 276 states and 725 transitions. Second operand 7 states. [2019-12-19 04:57:20,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:57:20,199 INFO L93 Difference]: Finished difference Result 447 states and 1205 transitions. [2019-12-19 04:57:20,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:57:20,200 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 04:57:20,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:57:20,203 INFO L225 Difference]: With dead ends: 447 [2019-12-19 04:57:20,203 INFO L226 Difference]: Without dead ends: 264 [2019-12-19 04:57:20,203 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 04:57:20,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-12-19 04:57:20,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2019-12-19 04:57:20,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2019-12-19 04:57:20,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 695 transitions. [2019-12-19 04:57:20,213 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 695 transitions. Word has length 33 [2019-12-19 04:57:20,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:57:20,213 INFO L462 AbstractCegarLoop]: Abstraction has 264 states and 695 transitions. [2019-12-19 04:57:20,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:57:20,214 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 695 transitions. [2019-12-19 04:57:20,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:57:20,215 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:57:20,215 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] [2019-12-19 04:57:20,215 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:57:20,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:57:20,216 INFO L82 PathProgramCache]: Analyzing trace with hash 304903326, now seen corresponding path program 3 times [2019-12-19 04:57:20,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:57:20,216 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64457619] [2019-12-19 04:57:20,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:57:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:57:20,332 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 04:57:20,332 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64457619] [2019-12-19 04:57:20,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:57:20,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:57:20,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642709528] [2019-12-19 04:57:20,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:57:20,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:57:20,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:57:20,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:57:20,336 INFO L87 Difference]: Start difference. First operand 264 states and 695 transitions. Second operand 7 states. [2019-12-19 04:57:20,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:57:20,427 INFO L93 Difference]: Finished difference Result 210 states and 533 transitions. [2019-12-19 04:57:20,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:57:20,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 04:57:20,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:57:20,428 INFO L225 Difference]: With dead ends: 210 [2019-12-19 04:57:20,428 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:57:20,429 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 [2019-12-19 04:57:20,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:57:20,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:57:20,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:57:20,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:57:20,430 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-19 04:57:20,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:57:20,430 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:57:20,430 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:57:20,430 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:57:20,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:57:20,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:57:20 BasicIcfg [2019-12-19 04:57:20,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:57:20,445 INFO L168 Benchmark]: Toolchain (without parser) took 3792.48 ms. Allocated memory was 146.3 MB in the beginning and 249.6 MB in the end (delta: 103.3 MB). Free memory was 103.1 MB in the beginning and 169.5 MB in the end (delta: -66.4 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:57:20,446 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 146.3 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-19 04:57:20,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.59 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.7 MB in the beginning and 160.1 MB in the end (delta: -57.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:57:20,453 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.12 ms. Allocated memory is still 203.9 MB. Free memory was 160.1 MB in the beginning and 158.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:57:20,454 INFO L168 Benchmark]: Boogie Preprocessor took 27.76 ms. Allocated memory is still 203.9 MB. Free memory was 158.2 MB in the beginning and 156.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:57:20,455 INFO L168 Benchmark]: RCFGBuilder took 432.65 ms. Allocated memory is still 203.9 MB. Free memory was 156.3 MB in the beginning and 136.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:57:20,456 INFO L168 Benchmark]: TraceAbstraction took 2548.77 ms. Allocated memory was 203.9 MB in the beginning and 249.6 MB in the end (delta: 45.6 MB). Free memory was 136.2 MB in the beginning and 169.5 MB in the end (delta: -33.2 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:57:20,469 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 146.3 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 721.59 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.7 MB in the beginning and 160.1 MB in the end (delta: -57.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.12 ms. Allocated memory is still 203.9 MB. Free memory was 160.1 MB in the beginning and 158.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.76 ms. Allocated memory is still 203.9 MB. Free memory was 158.2 MB in the beginning and 156.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.65 ms. Allocated memory is still 203.9 MB. Free memory was 156.3 MB in the beginning and 136.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2548.77 ms. Allocated memory was 203.9 MB in the beginning and 249.6 MB in the end (delta: 45.6 MB). Free memory was 136.2 MB in the beginning and 169.5 MB in the end (delta: -33.2 MB). Peak memory consumption was 12.4 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 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 279 SDtfs, 367 SDslu, 753 SDs, 0 SdLazy, 122 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 17178 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...