/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 22:33:14,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 22:33:14,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 22:33:14,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 22:33:14,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 22:33:14,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 22:33:14,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 22:33:14,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 22:33:14,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 22:33:14,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 22:33:14,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 22:33:14,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 22:33:14,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 22:33:14,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 22:33:14,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 22:33:14,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 22:33:14,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 22:33:14,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 22:33:14,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 22:33:14,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 22:33:14,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 22:33:14,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 22:33:14,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 22:33:14,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 22:33:14,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 22:33:14,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 22:33:14,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 22:33:14,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 22:33:14,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 22:33:14,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 22:33:14,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 22:33:14,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 22:33:14,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 22:33:14,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 22:33:14,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 22:33:14,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 22:33:14,447 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-VariableLbe.epf [2019-12-18 22:33:14,461 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 22:33:14,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 22:33:14,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 22:33:14,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 22:33:14,462 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 22:33:14,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 22:33:14,463 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 22:33:14,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 22:33:14,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 22:33:14,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 22:33:14,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 22:33:14,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 22:33:14,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 22:33:14,464 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 22:33:14,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 22:33:14,465 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 22:33:14,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 22:33:14,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 22:33:14,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 22:33:14,465 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 22:33:14,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 22:33:14,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 22:33:14,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 22:33:14,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 22:33:14,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 22:33:14,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 22:33:14,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 22:33:14,467 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 22:33:14,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 22:33:14,467 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 22:33:14,794 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 22:33:14,812 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 22:33:14,815 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 22:33:14,817 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 22:33:14,817 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 22:33:14,818 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i [2019-12-18 22:33:14,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9a2b46f1/94c11e46a0ee4a9b9e8deaa63cc190d7/FLAG3ea725a99 [2019-12-18 22:33:15,391 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 22:33:15,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i [2019-12-18 22:33:15,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9a2b46f1/94c11e46a0ee4a9b9e8deaa63cc190d7/FLAG3ea725a99 [2019-12-18 22:33:15,728 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9a2b46f1/94c11e46a0ee4a9b9e8deaa63cc190d7 [2019-12-18 22:33:15,738 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 22:33:15,740 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 22:33:15,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 22:33:15,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 22:33:15,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 22:33:15,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:33:15" (1/1) ... [2019-12-18 22:33:15,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8571ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:15, skipping insertion in model container [2019-12-18 22:33:15,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:33:15" (1/1) ... [2019-12-18 22:33:15,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 22:33:15,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 22:33:16,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:33:16,308 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 22:33:16,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:33:16,447 INFO L208 MainTranslator]: Completed translation [2019-12-18 22:33:16,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:16 WrapperNode [2019-12-18 22:33:16,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 22:33:16,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 22:33:16,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 22:33:16,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 22:33:16,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:16" (1/1) ... [2019-12-18 22:33:16,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:16" (1/1) ... [2019-12-18 22:33:16,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 22:33:16,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 22:33:16,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 22:33:16,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 22:33:16,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:16" (1/1) ... [2019-12-18 22:33:16,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:16" (1/1) ... [2019-12-18 22:33:16,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:16" (1/1) ... [2019-12-18 22:33:16,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:16" (1/1) ... [2019-12-18 22:33:16,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:16" (1/1) ... [2019-12-18 22:33:16,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:16" (1/1) ... [2019-12-18 22:33:16,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:16" (1/1) ... [2019-12-18 22:33:16,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 22:33:16,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 22:33:16,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 22:33:16,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 22:33:16,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:16" (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 [2019-12-18 22:33:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 22:33:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 22:33:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 22:33:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 22:33:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 22:33:16,603 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 22:33:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 22:33:16,604 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 22:33:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 22:33:16,605 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 22:33:16,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 22:33:16,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 22:33:16,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 22:33:16,608 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 22:33:16,979 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 22:33:16,980 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 22:33:16,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:33:16 BoogieIcfgContainer [2019-12-18 22:33:16,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 22:33:16,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 22:33:16,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 22:33:16,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 22:33:16,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:33:15" (1/3) ... [2019-12-18 22:33:16,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af93193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:33:16, skipping insertion in model container [2019-12-18 22:33:16,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:16" (2/3) ... [2019-12-18 22:33:16,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af93193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:33:16, skipping insertion in model container [2019-12-18 22:33:16,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:33:16" (3/3) ... [2019-12-18 22:33:16,992 INFO L109 eAbstractionObserver]: Analyzing ICFG safe012_tso.oepc.i [2019-12-18 22:33:17,002 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 22:33:17,002 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 22:33:17,009 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 22:33:17,010 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 22:33:17,044 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,045 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,045 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,046 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,046 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,046 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,047 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,048 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,048 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,048 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,049 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,049 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,050 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,050 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,050 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,051 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,051 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,051 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,056 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,057 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,057 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,057 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,065 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,066 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,066 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,066 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,069 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,070 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,070 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,071 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:33:17,088 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 22:33:17,109 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 22:33:17,109 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 22:33:17,110 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 22:33:17,110 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 22:33:17,110 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 22:33:17,111 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 22:33:17,111 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 22:33:17,111 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 22:33:17,127 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-18 22:33:17,129 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-18 22:33:17,191 INFO L126 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-18 22:33:17,191 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:33:17,197 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/59 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:33:17,200 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-18 22:33:17,216 INFO L126 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-18 22:33:17,216 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:33:17,217 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/59 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:33:17,219 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 22:33:17,220 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 22:33:18,600 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-18 22:33:18,730 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-18 22:33:18,730 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-18 22:33:18,733 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 22:33:18,742 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 22:33:18,744 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 22:33:18,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 22:33:18,749 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:33:18,750 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:33:18,750 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:33:18,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:33:18,757 INFO L82 PathProgramCache]: Analyzing trace with hash 2019279745, now seen corresponding path program 1 times [2019-12-18 22:33:18,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:33:18,767 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342197694] [2019-12-18 22:33:18,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:33:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:33:18,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:33:18,967 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342197694] [2019-12-18 22:33:18,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:33:18,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 22:33:18,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074981812] [2019-12-18 22:33:18,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:33:18,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:33:18,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:33:18,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:33:18,993 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 22:33:19,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:33:19,026 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 22:33:19,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:33:19,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 22:33:19,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:33:19,039 INFO L225 Difference]: With dead ends: 42 [2019-12-18 22:33:19,040 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 22:33:19,041 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:33:19,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 22:33:19,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 22:33:19,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 22:33:19,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 22:33:19,076 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 22:33:19,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:33:19,077 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 22:33:19,077 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:33:19,077 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 22:33:19,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 22:33:19,078 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:33:19,078 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:33:19,079 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:33:19,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:33:19,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1392638966, now seen corresponding path program 1 times [2019-12-18 22:33:19,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:33:19,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819808070] [2019-12-18 22:33:19,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:33:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:33:19,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:33:19,163 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819808070] [2019-12-18 22:33:19,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:33:19,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:33:19,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108492630] [2019-12-18 22:33:19,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:33:19,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:33:19,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:33:19,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:33:19,168 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 22:33:19,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:33:19,188 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 22:33:19,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:33:19,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 22:33:19,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:33:19,189 INFO L225 Difference]: With dead ends: 36 [2019-12-18 22:33:19,189 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 22:33:19,190 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 22:33:19,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 22:33:19,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 22:33:19,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 22:33:19,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 22:33:19,198 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-18 22:33:19,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:33:19,199 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 22:33:19,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:33:19,199 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 22:33:19,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 22:33:19,200 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:33:19,200 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:33:19,200 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:33:19,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:33:19,201 INFO L82 PathProgramCache]: Analyzing trace with hash -794773568, now seen corresponding path program 1 times [2019-12-18 22:33:19,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:33:19,201 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581429111] [2019-12-18 22:33:19,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:33:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:33:19,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:33:19,334 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581429111] [2019-12-18 22:33:19,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:33:19,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:33:19,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635928522] [2019-12-18 22:33:19,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:33:19,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:33:19,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:33:19,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:33:19,336 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-18 22:33:19,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:33:19,352 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-18 22:33:19,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:33:19,353 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 22:33:19,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:33:19,353 INFO L225 Difference]: With dead ends: 25 [2019-12-18 22:33:19,353 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 22:33:19,354 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 22:33:19,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 22:33:19,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 22:33:19,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 22:33:19,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 22:33:19,357 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-18 22:33:19,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:33:19,357 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 22:33:19,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:33:19,358 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 22:33:19,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 22:33:19,358 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:33:19,358 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:33:19,358 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:33:19,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:33:19,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1139321736, now seen corresponding path program 1 times [2019-12-18 22:33:19,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:33:19,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053239480] [2019-12-18 22:33:19,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:33:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:33:19,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:33:19,436 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053239480] [2019-12-18 22:33:19,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:33:19,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 22:33:19,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153632815] [2019-12-18 22:33:19,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:33:19,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:33:19,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:33:19,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:33:19,438 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 22:33:19,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:33:19,454 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 22:33:19,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:33:19,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 22:33:19,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:33:19,455 INFO L225 Difference]: With dead ends: 16 [2019-12-18 22:33:19,455 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 22:33:19,455 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 22:33:19,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 22:33:19,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 22:33:19,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 22:33:19,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 22:33:19,457 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 22:33:19,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:33:19,457 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 22:33:19,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:33:19,457 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 22:33:19,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 22:33:19,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 10:33:19 BasicIcfg [2019-12-18 22:33:19,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 22:33:19,467 INFO L168 Benchmark]: Toolchain (without parser) took 3726.92 ms. Allocated memory was 137.9 MB in the beginning and 249.0 MB in the end (delta: 111.1 MB). Free memory was 101.3 MB in the beginning and 168.3 MB in the end (delta: -66.9 MB). Peak memory consumption was 44.2 MB. Max. memory is 7.1 GB. [2019-12-18 22:33:19,469 INFO L168 Benchmark]: CDTParser took 1.17 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-18 22:33:19,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.29 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 158.7 MB in the end (delta: -57.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-12-18 22:33:19,473 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.89 ms. Allocated memory is still 201.9 MB. Free memory was 158.7 MB in the beginning and 156.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 22:33:19,478 INFO L168 Benchmark]: Boogie Preprocessor took 25.43 ms. Allocated memory is still 201.9 MB. Free memory was 156.7 MB in the beginning and 155.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 22:33:19,478 INFO L168 Benchmark]: RCFGBuilder took 453.26 ms. Allocated memory is still 201.9 MB. Free memory was 155.3 MB in the beginning and 134.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-12-18 22:33:19,481 INFO L168 Benchmark]: TraceAbstraction took 2481.04 ms. Allocated memory was 201.9 MB in the beginning and 249.0 MB in the end (delta: 47.2 MB). Free memory was 134.5 MB in the beginning and 168.3 MB in the end (delta: -33.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2019-12-18 22:33:19,488 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.17 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.29 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 158.7 MB in the end (delta: -57.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.89 ms. Allocated memory is still 201.9 MB. Free memory was 158.7 MB in the beginning and 156.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.43 ms. Allocated memory is still 201.9 MB. Free memory was 156.7 MB in the beginning and 155.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 453.26 ms. Allocated memory is still 201.9 MB. Free memory was 155.3 MB in the beginning and 134.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2481.04 ms. Allocated memory was 201.9 MB in the beginning and 249.0 MB in the end (delta: 47.2 MB). Free memory was 134.5 MB in the beginning and 168.3 MB in the end (delta: -33.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 64 ProgramPointsBefore, 21 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 228 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 47 TotalNumberOfCompositions - 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, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 44 SDtfs, 27 SDslu, 36 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 762 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...