/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/safe035_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:33:35,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:33:35,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:33:35,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:33:35,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:33:35,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:33:35,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:33:35,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:33:35,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:33:35,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:33:35,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:33:35,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:33:35,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:33:35,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:33:35,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:33:35,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:33:35,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:33:35,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:33:35,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:33:35,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:33:35,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:33:35,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:33:35,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:33:35,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:33:35,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:33:35,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:33:35,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:33:35,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:33:35,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:33:35,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:33:35,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:33:35,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:33:35,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:33:35,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:33:35,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:33:35,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:33:35,358 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 05:33:35,372 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:33:35,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:33:35,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:33:35,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:33:35,374 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:33:35,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:33:35,374 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:33:35,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:33:35,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:33:35,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:33:35,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:33:35,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:33:35,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:33:35,376 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:33:35,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:33:35,376 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:33:35,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:33:35,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:33:35,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:33:35,377 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:33:35,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:33:35,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:33:35,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:33:35,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:33:35,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:33:35,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:33:35,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:33:35,378 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:33:35,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:33:35,379 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:33:35,661 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:33:35,684 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:33:35,688 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:33:35,689 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:33:35,690 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:33:35,691 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i [2019-12-19 05:33:35,765 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35bf083f4/56d4f6c31e494940a7c4db5c71a561af/FLAGc2b7686d4 [2019-12-19 05:33:36,330 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:33:36,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i [2019-12-19 05:33:36,345 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35bf083f4/56d4f6c31e494940a7c4db5c71a561af/FLAGc2b7686d4 [2019-12-19 05:33:36,672 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35bf083f4/56d4f6c31e494940a7c4db5c71a561af [2019-12-19 05:33:36,681 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:33:36,683 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:33:36,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:33:36,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:33:36,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:33:36,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:33:36" (1/1) ... [2019-12-19 05:33:36,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f5245d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:36, skipping insertion in model container [2019-12-19 05:33:36,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:33:36" (1/1) ... [2019-12-19 05:33:36,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:33:36,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:33:37,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:33:37,240 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:33:37,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:33:37,435 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:33:37,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:37 WrapperNode [2019-12-19 05:33:37,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:33:37,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:33:37,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:33:37,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:33:37,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:37" (1/1) ... [2019-12-19 05:33:37,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:37" (1/1) ... [2019-12-19 05:33:37,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:33:37,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:33:37,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:33:37,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:33:37,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:37" (1/1) ... [2019-12-19 05:33:37,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:37" (1/1) ... [2019-12-19 05:33:37,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:37" (1/1) ... [2019-12-19 05:33:37,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:37" (1/1) ... [2019-12-19 05:33:37,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:37" (1/1) ... [2019-12-19 05:33:37,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:37" (1/1) ... [2019-12-19 05:33:37,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:37" (1/1) ... [2019-12-19 05:33:37,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:33:37,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:33:37,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:33:37,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:33:37,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:37" (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 05:33:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:33:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:33:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:33:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:33:37,656 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:33:37,656 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:33:37,656 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:33:37,656 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:33:37,657 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:33:37,657 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:33:37,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:33:37,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:33:37,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:33:37,659 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 05:33:37,984 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:33:37,985 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:33:37,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:33:37 BoogieIcfgContainer [2019-12-19 05:33:37,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:33:37,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:33:37,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:33:37,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:33:37,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:33:36" (1/3) ... [2019-12-19 05:33:37,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5234b47d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:33:37, skipping insertion in model container [2019-12-19 05:33:37,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:37" (2/3) ... [2019-12-19 05:33:37,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5234b47d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:33:37, skipping insertion in model container [2019-12-19 05:33:37,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:33:37" (3/3) ... [2019-12-19 05:33:38,000 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_rmo.opt.i [2019-12-19 05:33:38,008 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:33:38,009 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:33:38,015 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:33:38,016 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:33:38,046 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,047 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,047 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,048 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,048 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,048 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,049 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,049 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,049 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,050 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,050 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,050 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,051 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,051 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,051 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,051 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,052 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,052 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,056 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,057 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,057 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,057 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,064 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,064 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,065 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,065 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,069 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,069 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,069 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,069 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:38,084 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:33:38,103 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:33:38,104 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:33:38,104 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:33:38,104 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:33:38,104 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:33:38,104 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:33:38,105 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:33:38,105 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:33:38,117 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 05:33:38,197 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 05:33:38,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 05:33:38,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 05:33:38,217 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:33:38,218 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 05:33:38,218 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:33:38,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:33:38,225 INFO L82 PathProgramCache]: Analyzing trace with hash -306675231, now seen corresponding path program 1 times [2019-12-19 05:33:38,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:33:38,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668110043] [2019-12-19 05:33:38,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:33:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:33:38,637 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 05:33:38,638 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668110043] [2019-12-19 05:33:38,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:33:38,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:33:38,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358430227] [2019-12-19 05:33:38,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:33:38,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:33:38,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:33:38,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:33:38,664 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 05:33:38,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:33:38,783 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 05:33:38,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:33:38,785 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 05:33:38,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:33:38,845 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 05:33:38,845 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 05:33:38,847 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:33:38,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 05:33:38,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 05:33:38,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 05:33:38,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 05:33:38,961 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 05:33:38,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:33:38,962 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 05:33:38,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:33:38,962 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 05:33:38,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:33:38,966 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:33:38,966 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 05:33:38,967 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:33:38,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:33:38,967 INFO L82 PathProgramCache]: Analyzing trace with hash -233225308, now seen corresponding path program 1 times [2019-12-19 05:33:38,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:33:38,968 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550478400] [2019-12-19 05:33:38,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:33:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:33:39,137 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 05:33:39,138 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550478400] [2019-12-19 05:33:39,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:33:39,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:33:39,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766454394] [2019-12-19 05:33:39,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:33:39,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:33:39,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:33:39,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:33:39,141 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 05:33:39,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:33:39,212 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 05:33:39,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:33:39,213 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 05:33:39,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:33:39,218 INFO L225 Difference]: With dead ends: 601 [2019-12-19 05:33:39,218 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 05:33:39,219 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 05:33:39,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 05:33:39,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 05:33:39,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 05:33:39,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 05:33:39,248 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 05:33:39,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:33:39,249 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 05:33:39,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:33:39,249 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 05:33:39,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:33:39,251 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:33:39,251 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 05:33:39,251 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:33:39,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:33:39,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1516721178, now seen corresponding path program 1 times [2019-12-19 05:33:39,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:33:39,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512136738] [2019-12-19 05:33:39,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:33:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:33:39,425 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 05:33:39,426 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512136738] [2019-12-19 05:33:39,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:33:39,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:33:39,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632779489] [2019-12-19 05:33:39,428 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:33:39,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:33:39,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:33:39,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:33:39,429 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 05:33:39,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:33:39,536 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 05:33:39,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:33:39,537 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 05:33:39,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:33:39,540 INFO L225 Difference]: With dead ends: 403 [2019-12-19 05:33:39,540 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 05:33:39,541 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:33:39,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 05:33:39,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 05:33:39,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 05:33:39,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 05:33:39,560 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 05:33:39,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:33:39,561 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 05:33:39,561 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:33:39,561 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 05:33:39,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:33:39,566 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:33:39,567 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:33:39,567 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:33:39,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:33:39,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1936440022, now seen corresponding path program 1 times [2019-12-19 05:33:39,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:33:39,568 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247727090] [2019-12-19 05:33:39,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:33:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:33:39,755 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 05:33:39,756 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247727090] [2019-12-19 05:33:39,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:33:39,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:33:39,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621543303] [2019-12-19 05:33:39,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:33:39,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:33:39,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:33:39,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:33:39,758 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-19 05:33:39,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:33:39,926 INFO L93 Difference]: Finished difference Result 304 states and 774 transitions. [2019-12-19 05:33:39,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:33:39,927 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:33:39,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:33:39,927 INFO L225 Difference]: With dead ends: 304 [2019-12-19 05:33:39,927 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:33:39,928 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 05:33:39,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:33:39,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:33:39,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:33:39,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:33:39,929 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 05:33:39,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:33:39,933 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:33:39,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:33:39,934 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:33:39,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:33:39,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:33:39 BasicIcfg [2019-12-19 05:33:39,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:33:39,946 INFO L168 Benchmark]: Toolchain (without parser) took 3261.60 ms. Allocated memory was 137.4 MB in the beginning and 232.3 MB in the end (delta: 94.9 MB). Free memory was 99.1 MB in the beginning and 93.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 100.7 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:39,949 INFO L168 Benchmark]: CDTParser took 0.94 ms. Allocated memory is still 137.4 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-19 05:33:39,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.52 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 98.8 MB in the beginning and 156.9 MB in the end (delta: -58.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:39,953 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.10 ms. Allocated memory is still 200.8 MB. Free memory was 156.9 MB in the beginning and 154.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:39,962 INFO L168 Benchmark]: Boogie Preprocessor took 57.99 ms. Allocated memory is still 200.8 MB. Free memory was 154.8 MB in the beginning and 153.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:39,963 INFO L168 Benchmark]: RCFGBuilder took 404.88 ms. Allocated memory is still 200.8 MB. Free memory was 153.5 MB in the beginning and 132.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:39,965 INFO L168 Benchmark]: TraceAbstraction took 1954.31 ms. Allocated memory was 200.8 MB in the beginning and 232.3 MB in the end (delta: 31.5 MB). Free memory was 132.2 MB in the beginning and 93.2 MB in the end (delta: 38.9 MB). Peak memory consumption was 70.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:39,981 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94 ms. Allocated memory is still 137.4 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 752.52 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 98.8 MB in the beginning and 156.9 MB in the end (delta: -58.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 86.10 ms. Allocated memory is still 200.8 MB. Free memory was 156.9 MB in the beginning and 154.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.99 ms. Allocated memory is still 200.8 MB. Free memory was 154.8 MB in the beginning and 153.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 404.88 ms. Allocated memory is still 200.8 MB. Free memory was 153.5 MB in the beginning and 132.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1954.31 ms. Allocated memory was 200.8 MB in the beginning and 232.3 MB in the end (delta: 31.5 MB). Free memory was 132.2 MB in the beginning and 93.2 MB in the end (delta: 38.9 MB). Peak memory consumption was 70.4 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 179 SDtfs, 257 SDslu, 391 SDs, 0 SdLazy, 63 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 11508 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...