/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/safe028_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:17:29,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:17:29,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:17:29,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:17:29,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:17:29,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:17:29,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:17:29,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:17:29,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:17:29,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:17:29,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:17:29,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:17:29,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:17:29,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:17:29,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:17:29,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:17:29,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:17:29,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:17:29,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:17:29,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:17:29,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:17:29,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:17:29,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:17:29,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:17:29,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:17:29,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:17:29,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:17:29,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:17:29,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:17:29,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:17:29,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:17:29,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:17:29,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:17:29,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:17:29,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:17:29,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:17:29,475 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 05:17:29,512 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:17:29,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:17:29,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:17:29,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:17:29,517 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:17:29,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:17:29,518 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:17:29,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:17:29,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:17:29,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:17:29,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:17:29,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:17:29,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:17:29,521 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:17:29,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:17:29,521 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:17:29,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:17:29,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:17:29,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:17:29,522 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:17:29,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:17:29,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:17:29,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:17:29,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:17:29,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:17:29,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:17:29,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:17:29,525 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:17:29,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:17:29,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:17:29,798 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:17:29,814 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:17:29,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:17:29,818 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:17:29,818 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:17:29,819 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i [2019-12-19 05:17:29,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f492696/df4166d11c9140be9f28f1730067f699/FLAG666eb75b4 [2019-12-19 05:17:30,389 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:17:30,390 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i [2019-12-19 05:17:30,406 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f492696/df4166d11c9140be9f28f1730067f699/FLAG666eb75b4 [2019-12-19 05:17:30,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f492696/df4166d11c9140be9f28f1730067f699 [2019-12-19 05:17:30,745 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:17:30,747 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:17:30,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:17:30,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:17:30,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:17:30,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:17:30" (1/1) ... [2019-12-19 05:17:30,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0226f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:30, skipping insertion in model container [2019-12-19 05:17:30,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:17:30" (1/1) ... [2019-12-19 05:17:30,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:17:30,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:17:31,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:17:31,279 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:17:31,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:17:31,414 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:17:31,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:31 WrapperNode [2019-12-19 05:17:31,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:17:31,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:17:31,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:17:31,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:17:31,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:31" (1/1) ... [2019-12-19 05:17:31,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:31" (1/1) ... [2019-12-19 05:17:31,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:17:31,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:17:31,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:17:31,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:17:31,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:31" (1/1) ... [2019-12-19 05:17:31,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:31" (1/1) ... [2019-12-19 05:17:31,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:31" (1/1) ... [2019-12-19 05:17:31,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:31" (1/1) ... [2019-12-19 05:17:31,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:31" (1/1) ... [2019-12-19 05:17:31,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:31" (1/1) ... [2019-12-19 05:17:31,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:31" (1/1) ... [2019-12-19 05:17:31,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:17:31,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:17:31,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:17:31,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:17:31,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:31" (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 05:17:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:17:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:17:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:17:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:17:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:17:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:17:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:17:31,559 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:17:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:17:31,560 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:17:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:17:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:17:31,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:17:31,562 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 05:17:31,918 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:17:31,918 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:17:31,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:17:31 BoogieIcfgContainer [2019-12-19 05:17:31,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:17:31,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:17:31,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:17:31,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:17:31,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:17:30" (1/3) ... [2019-12-19 05:17:31,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cde5fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:17:31, skipping insertion in model container [2019-12-19 05:17:31,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:31" (2/3) ... [2019-12-19 05:17:31,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cde5fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:17:31, skipping insertion in model container [2019-12-19 05:17:31,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:17:31" (3/3) ... [2019-12-19 05:17:31,928 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_pso.opt.i [2019-12-19 05:17:31,938 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:17:31,938 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:17:31,945 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:17:31,946 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:17:31,976 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,977 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,977 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,980 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,981 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,981 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,981 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,982 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,982 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,982 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,982 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,983 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,983 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,983 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,984 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,984 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,984 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,984 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,991 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,993 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,993 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,999 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,999 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:31,999 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:32,000 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:32,008 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:32,008 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:32,008 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:32,009 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:32,021 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:17:32,038 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:17:32,039 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:17:32,039 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:17:32,039 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:17:32,039 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:17:32,039 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:17:32,039 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:17:32,040 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:17:32,050 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 05:17:32,141 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 05:17:32,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 05:17:32,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 05:17:32,174 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:32,175 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 05:17:32,175 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:32,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:32,184 INFO L82 PathProgramCache]: Analyzing trace with hash -193367577, now seen corresponding path program 1 times [2019-12-19 05:17:32,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:32,193 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723176528] [2019-12-19 05:17:32,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:32,608 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 05:17:32,609 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723176528] [2019-12-19 05:17:32,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:32,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:17:32,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410144068] [2019-12-19 05:17:32,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:17:32,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:32,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:17:32,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:17:32,635 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 05:17:32,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:32,752 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 05:17:32,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:17:32,754 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 05:17:32,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:32,779 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 05:17:32,779 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 05:17:32,781 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 05:17:32,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 05:17:32,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 05:17:32,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 05:17:32,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 05:17:32,928 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 05:17:32,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:32,929 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 05:17:32,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:17:32,929 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 05:17:32,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:17:32,933 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:32,933 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 05:17:32,933 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:32,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:32,935 INFO L82 PathProgramCache]: Analyzing trace with hash 697710444, now seen corresponding path program 1 times [2019-12-19 05:17:32,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:32,935 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491135979] [2019-12-19 05:17:32,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:33,107 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 05:17:33,108 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491135979] [2019-12-19 05:17:33,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:33,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:17:33,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735668573] [2019-12-19 05:17:33,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:17:33,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:33,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:17:33,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:17:33,112 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 05:17:33,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:33,198 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 05:17:33,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:17:33,199 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 05:17:33,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:33,204 INFO L225 Difference]: With dead ends: 601 [2019-12-19 05:17:33,204 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 05:17:33,205 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 05:17:33,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 05:17:33,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 05:17:33,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 05:17:33,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 05:17:33,224 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 05:17:33,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:33,224 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 05:17:33,225 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:17:33,225 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 05:17:33,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:17:33,227 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:33,227 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 05:17:33,227 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:33,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:33,228 INFO L82 PathProgramCache]: Analyzing trace with hash -2130890134, now seen corresponding path program 1 times [2019-12-19 05:17:33,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:33,228 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206562705] [2019-12-19 05:17:33,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:33,351 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 05:17:33,351 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206562705] [2019-12-19 05:17:33,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:33,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:17:33,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109596736] [2019-12-19 05:17:33,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:17:33,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:33,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:17:33,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:17:33,353 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 05:17:33,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:33,457 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 05:17:33,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:17:33,458 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 05:17:33,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:33,460 INFO L225 Difference]: With dead ends: 403 [2019-12-19 05:17:33,461 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 05:17:33,461 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:17:33,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 05:17:33,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 05:17:33,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 05:17:33,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 05:17:33,472 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 05:17:33,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:33,473 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 05:17:33,473 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:17:33,473 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 05:17:33,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:17:33,475 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:33,475 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 05:17:33,475 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:33,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:33,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1468969640, now seen corresponding path program 1 times [2019-12-19 05:17:33,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:33,476 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134512817] [2019-12-19 05:17:33,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:33,625 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 05:17:33,625 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134512817] [2019-12-19 05:17:33,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:33,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:17:33,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560611506] [2019-12-19 05:17:33,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:17:33,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:33,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:17:33,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:17:33,628 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-19 05:17:33,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:33,780 INFO L93 Difference]: Finished difference Result 520 states and 1395 transitions. [2019-12-19 05:17:33,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:17:33,781 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:17:33,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:33,783 INFO L225 Difference]: With dead ends: 520 [2019-12-19 05:17:33,783 INFO L226 Difference]: Without dead ends: 277 [2019-12-19 05:17:33,784 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 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 05:17:33,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2019-12-19 05:17:33,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2019-12-19 05:17:33,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2019-12-19 05:17:33,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 726 transitions. [2019-12-19 05:17:33,795 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 726 transitions. Word has length 34 [2019-12-19 05:17:33,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:33,795 INFO L462 AbstractCegarLoop]: Abstraction has 277 states and 726 transitions. [2019-12-19 05:17:33,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:17:33,796 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 726 transitions. [2019-12-19 05:17:33,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:17:33,797 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:33,797 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 05:17:33,798 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:33,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:33,798 INFO L82 PathProgramCache]: Analyzing trace with hash -900597390, now seen corresponding path program 2 times [2019-12-19 05:17:33,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:33,799 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637039716] [2019-12-19 05:17:33,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:33,974 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 05:17:33,974 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637039716] [2019-12-19 05:17:33,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:33,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:17:33,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237318555] [2019-12-19 05:17:33,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:17:33,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:33,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:17:33,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:17:33,977 INFO L87 Difference]: Start difference. First operand 277 states and 726 transitions. Second operand 7 states. [2019-12-19 05:17:34,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:34,129 INFO L93 Difference]: Finished difference Result 439 states and 1185 transitions. [2019-12-19 05:17:34,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:17:34,130 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:17:34,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:34,132 INFO L225 Difference]: With dead ends: 439 [2019-12-19 05:17:34,132 INFO L226 Difference]: Without dead ends: 253 [2019-12-19 05:17:34,132 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 05:17:34,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-12-19 05:17:34,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2019-12-19 05:17:34,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2019-12-19 05:17:34,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 672 transitions. [2019-12-19 05:17:34,141 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 672 transitions. Word has length 34 [2019-12-19 05:17:34,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:34,142 INFO L462 AbstractCegarLoop]: Abstraction has 253 states and 672 transitions. [2019-12-19 05:17:34,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:17:34,142 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 672 transitions. [2019-12-19 05:17:34,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:17:34,143 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:34,144 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 05:17:34,144 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:34,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:34,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1107408296, now seen corresponding path program 3 times [2019-12-19 05:17:34,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:34,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90523793] [2019-12-19 05:17:34,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:34,290 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 05:17:34,291 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90523793] [2019-12-19 05:17:34,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:34,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:17:34,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671688762] [2019-12-19 05:17:34,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:17:34,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:34,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:17:34,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:17:34,293 INFO L87 Difference]: Start difference. First operand 253 states and 672 transitions. Second operand 8 states. [2019-12-19 05:17:34,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:34,388 INFO L93 Difference]: Finished difference Result 199 states and 510 transitions. [2019-12-19 05:17:34,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:17:34,388 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:17:34,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:34,389 INFO L225 Difference]: With dead ends: 199 [2019-12-19 05:17:34,389 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:17:34,389 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:17:34,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:17:34,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:17:34,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:17:34,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:17:34,391 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 05:17:34,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:34,391 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:17:34,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:17:34,391 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:17:34,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:17:34,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:17:34 BasicIcfg [2019-12-19 05:17:34,400 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:17:34,405 INFO L168 Benchmark]: Toolchain (without parser) took 3656.21 ms. Allocated memory was 147.3 MB in the beginning and 243.8 MB in the end (delta: 96.5 MB). Free memory was 102.1 MB in the beginning and 142.5 MB in the end (delta: -40.3 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:34,406 INFO L168 Benchmark]: CDTParser took 1.02 ms. Allocated memory is still 147.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 05:17:34,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 666.99 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 101.9 MB in the beginning and 161.6 MB in the end (delta: -59.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:34,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.17 ms. Allocated memory is still 204.5 MB. Free memory was 161.6 MB in the beginning and 159.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:34,415 INFO L168 Benchmark]: Boogie Preprocessor took 27.49 ms. Allocated memory is still 204.5 MB. Free memory was 159.7 MB in the beginning and 157.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:34,415 INFO L168 Benchmark]: RCFGBuilder took 422.35 ms. Allocated memory is still 204.5 MB. Free memory was 157.8 MB in the beginning and 137.4 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:34,416 INFO L168 Benchmark]: TraceAbstraction took 2479.33 ms. Allocated memory was 204.5 MB in the beginning and 243.8 MB in the end (delta: 39.3 MB). Free memory was 137.4 MB in the beginning and 142.5 MB in the end (delta: -5.1 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:34,430 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02 ms. Allocated memory is still 147.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 666.99 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 101.9 MB in the beginning and 161.6 MB in the end (delta: -59.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.17 ms. Allocated memory is still 204.5 MB. Free memory was 161.6 MB in the beginning and 159.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.49 ms. Allocated memory is still 204.5 MB. Free memory was 159.7 MB in the beginning and 157.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.35 ms. Allocated memory is still 204.5 MB. Free memory was 157.8 MB in the beginning and 137.4 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2479.33 ms. Allocated memory was 204.5 MB in the beginning and 243.8 MB in the end (delta: 39.3 MB). Free memory was 137.4 MB in the beginning and 142.5 MB in the end (delta: -5.1 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 309 SDtfs, 366 SDslu, 847 SDs, 0 SdLazy, 119 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 18900 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...