/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-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 22:36:23,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 22:36:23,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 22:36:23,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 22:36:23,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 22:36:23,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 22:36:23,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 22:36:23,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 22:36:23,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 22:36:23,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 22:36:23,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 22:36:23,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 22:36:23,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 22:36:23,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 22:36:23,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 22:36:23,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 22:36:23,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 22:36:23,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 22:36:23,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 22:36:23,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 22:36:23,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 22:36:23,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 22:36:23,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 22:36:23,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 22:36:23,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 22:36:23,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 22:36:23,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 22:36:23,576 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 22:36:23,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 22:36:23,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 22:36:23,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 22:36:23,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 22:36:23,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 22:36:23,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 22:36:23,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 22:36:23,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 22:36:23,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 22:36:23,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 22:36:23,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 22:36:23,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 22:36:23,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 22:36:23,591 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-SemanticLbe.epf [2020-04-17 22:36:23,605 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 22:36:23,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 22:36:23,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 22:36:23,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 22:36:23,607 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 22:36:23,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 22:36:23,607 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 22:36:23,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 22:36:23,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 22:36:23,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 22:36:23,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 22:36:23,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 22:36:23,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 22:36:23,609 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 22:36:23,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 22:36:23,609 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 22:36:23,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 22:36:23,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 22:36:23,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 22:36:23,611 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 22:36:23,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 22:36:23,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:36:23,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 22:36:23,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 22:36:23,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 22:36:23,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 22:36:23,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 22:36:23,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 22:36:23,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 22:36:23,924 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 22:36:23,936 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 22:36:23,941 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 22:36:23,942 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 22:36:23,942 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 22:36:23,943 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2020-04-17 22:36:24,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5971b649d/9f7f6ca64c1c4237975fa14b95109252/FLAG3b1354f16 [2020-04-17 22:36:24,519 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 22:36:24,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2020-04-17 22:36:24,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5971b649d/9f7f6ca64c1c4237975fa14b95109252/FLAG3b1354f16 [2020-04-17 22:36:24,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5971b649d/9f7f6ca64c1c4237975fa14b95109252 [2020-04-17 22:36:24,794 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 22:36:24,817 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 22:36:24,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 22:36:24,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 22:36:24,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 22:36:24,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:36:24" (1/1) ... [2020-04-17 22:36:24,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed36829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:24, skipping insertion in model container [2020-04-17 22:36:24,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:36:24" (1/1) ... [2020-04-17 22:36:24,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 22:36:24,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 22:36:25,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:36:25,416 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 22:36:25,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:36:25,554 INFO L208 MainTranslator]: Completed translation [2020-04-17 22:36:25,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:25 WrapperNode [2020-04-17 22:36:25,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 22:36:25,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 22:36:25,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 22:36:25,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 22:36:25,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:25" (1/1) ... [2020-04-17 22:36:25,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:25" (1/1) ... [2020-04-17 22:36:25,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 22:36:25,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 22:36:25,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 22:36:25,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 22:36:25,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:25" (1/1) ... [2020-04-17 22:36:25,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:25" (1/1) ... [2020-04-17 22:36:25,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:25" (1/1) ... [2020-04-17 22:36:25,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:25" (1/1) ... [2020-04-17 22:36:25,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:25" (1/1) ... [2020-04-17 22:36:25,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:25" (1/1) ... [2020-04-17 22:36:25,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:25" (1/1) ... [2020-04-17 22:36:25,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 22:36:25,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 22:36:25,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 22:36:25,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 22:36:25,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:25" (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 [2020-04-17 22:36:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 22:36:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 22:36:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 22:36:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 22:36:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 22:36:25,699 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 22:36:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 22:36:25,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 22:36:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 22:36:25,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 22:36:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 22:36:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 22:36:25,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 22:36:25,702 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 22:36:26,093 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 22:36:26,094 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 22:36:26,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:36:26 BoogieIcfgContainer [2020-04-17 22:36:26,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 22:36:26,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 22:36:26,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 22:36:26,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 22:36:26,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 10:36:24" (1/3) ... [2020-04-17 22:36:26,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4590f090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:36:26, skipping insertion in model container [2020-04-17 22:36:26,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:25" (2/3) ... [2020-04-17 22:36:26,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4590f090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:36:26, skipping insertion in model container [2020-04-17 22:36:26,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:36:26" (3/3) ... [2020-04-17 22:36:26,110 INFO L109 eAbstractionObserver]: Analyzing ICFG safe034_tso.opt.i [2020-04-17 22:36:26,119 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 22:36:26,120 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 22:36:26,127 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 22:36:26,128 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 22:36:26,154 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,154 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,154 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,155 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,155 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,156 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,156 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,156 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,157 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,157 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,157 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,157 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,158 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,158 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,158 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,159 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,159 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,159 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,163 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,164 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,164 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,164 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,171 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,171 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,172 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,172 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,174 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,175 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,175 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,175 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:26,191 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 22:36:26,210 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 22:36:26,210 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 22:36:26,211 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 22:36:26,211 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 22:36:26,211 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 22:36:26,211 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 22:36:26,211 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 22:36:26,212 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 22:36:26,227 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-04-17 22:36:26,230 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-17 22:36:26,274 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-17 22:36:26,275 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:36:26,280 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 22:36:26,283 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-17 22:36:26,304 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-17 22:36:26,304 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:36:26,305 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 22:36:26,307 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-17 22:36:26,309 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 22:36:28,081 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2732 [2020-04-17 22:36:28,081 INFO L214 etLargeBlockEncoding]: Total number of compositions: 60 [2020-04-17 22:36:28,085 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-04-17 22:36:28,110 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-04-17 22:36:28,112 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-17 22:36:28,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 22:36:28,120 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:36:28,121 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:36:28,121 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:36:28,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:36:28,127 INFO L82 PathProgramCache]: Analyzing trace with hash 760003701, now seen corresponding path program 1 times [2020-04-17 22:36:28,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:36:28,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902047392] [2020-04-17 22:36:28,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:36:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:36:28,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:36:28,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902047392] [2020-04-17 22:36:28,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:36:28,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 22:36:28,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414949694] [2020-04-17 22:36:28,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:36:28,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:36:28,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:36:28,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:36:28,371 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-17 22:36:28,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:36:28,421 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-04-17 22:36:28,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:36:28,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-17 22:36:28,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:36:28,439 INFO L225 Difference]: With dead ends: 290 [2020-04-17 22:36:28,440 INFO L226 Difference]: Without dead ends: 226 [2020-04-17 22:36:28,441 INFO L678 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 [2020-04-17 22:36:28,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-04-17 22:36:28,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-04-17 22:36:28,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-04-17 22:36:28,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-04-17 22:36:28,509 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-04-17 22:36:28,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:36:28,510 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-04-17 22:36:28,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:36:28,510 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-04-17 22:36:28,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 22:36:28,512 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:36:28,512 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:36:28,512 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:36:28,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:36:28,512 INFO L82 PathProgramCache]: Analyzing trace with hash 2069729619, now seen corresponding path program 1 times [2020-04-17 22:36:28,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:36:28,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906609957] [2020-04-17 22:36:28,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:36:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:36:28,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:36:28,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906609957] [2020-04-17 22:36:28,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:36:28,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:36:28,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905743318] [2020-04-17 22:36:28,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:36:28,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:36:28,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:36:28,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:36:28,639 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 4 states. [2020-04-17 22:36:28,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:36:28,705 INFO L93 Difference]: Finished difference Result 242 states and 605 transitions. [2020-04-17 22:36:28,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:36:28,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-17 22:36:28,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:36:28,710 INFO L225 Difference]: With dead ends: 242 [2020-04-17 22:36:28,711 INFO L226 Difference]: Without dead ends: 178 [2020-04-17 22:36:28,712 INFO L678 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 [2020-04-17 22:36:28,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-04-17 22:36:28,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-04-17 22:36:28,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-04-17 22:36:28,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 434 transitions. [2020-04-17 22:36:28,729 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 434 transitions. Word has length 9 [2020-04-17 22:36:28,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:36:28,730 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 434 transitions. [2020-04-17 22:36:28,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:36:28,730 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 434 transitions. [2020-04-17 22:36:28,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 22:36:28,731 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:36:28,731 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:36:28,732 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:36:28,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:36:28,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1183022512, now seen corresponding path program 1 times [2020-04-17 22:36:28,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:36:28,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837659130] [2020-04-17 22:36:28,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:36:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:36:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:36:28,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837659130] [2020-04-17 22:36:28,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:36:28,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:36:28,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316089708] [2020-04-17 22:36:28,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:36:28,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:36:28,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:36:28,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:36:28,879 INFO L87 Difference]: Start difference. First operand 178 states and 434 transitions. Second operand 5 states. [2020-04-17 22:36:28,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:36:28,939 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-04-17 22:36:28,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 22:36:28,940 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-04-17 22:36:28,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:36:28,941 INFO L225 Difference]: With dead ends: 163 [2020-04-17 22:36:28,941 INFO L226 Difference]: Without dead ends: 126 [2020-04-17 22:36:28,942 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:36:28,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-04-17 22:36:28,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-04-17 22:36:28,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-04-17 22:36:28,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-04-17 22:36:28,951 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-04-17 22:36:28,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:36:28,952 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-04-17 22:36:28,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:36:28,952 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-04-17 22:36:28,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-17 22:36:28,953 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:36:28,953 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:36:28,954 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:36:28,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:36:28,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1548024821, now seen corresponding path program 1 times [2020-04-17 22:36:28,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:36:28,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168245005] [2020-04-17 22:36:28,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:36:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:36:29,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:36:29,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168245005] [2020-04-17 22:36:29,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:36:29,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:36:29,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840633267] [2020-04-17 22:36:29,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-17 22:36:29,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:36:29,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-17 22:36:29,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:36:29,080 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 6 states. [2020-04-17 22:36:29,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:36:29,135 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-04-17 22:36:29,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-17 22:36:29,136 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-04-17 22:36:29,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:36:29,136 INFO L225 Difference]: With dead ends: 118 [2020-04-17 22:36:29,137 INFO L226 Difference]: Without dead ends: 108 [2020-04-17 22:36:29,137 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-17 22:36:29,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-04-17 22:36:29,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-04-17 22:36:29,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-04-17 22:36:29,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-04-17 22:36:29,143 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-04-17 22:36:29,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:36:29,144 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-04-17 22:36:29,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-17 22:36:29,144 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-04-17 22:36:29,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 22:36:29,145 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:36:29,146 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:36:29,146 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:36:29,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:36:29,146 INFO L82 PathProgramCache]: Analyzing trace with hash 2137678742, now seen corresponding path program 1 times [2020-04-17 22:36:29,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:36:29,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457423162] [2020-04-17 22:36:29,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:36:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:36:29,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:36:29,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457423162] [2020-04-17 22:36:29,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:36:29,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:36:29,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703760051] [2020-04-17 22:36:29,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:36:29,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:36:29,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:36:29,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:36:29,205 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 3 states. [2020-04-17 22:36:29,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:36:29,215 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-04-17 22:36:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:36:29,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-04-17 22:36:29,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:36:29,216 INFO L225 Difference]: With dead ends: 133 [2020-04-17 22:36:29,217 INFO L226 Difference]: Without dead ends: 54 [2020-04-17 22:36:29,217 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:36:29,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-04-17 22:36:29,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-04-17 22:36:29,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-04-17 22:36:29,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-04-17 22:36:29,221 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-04-17 22:36:29,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:36:29,221 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-04-17 22:36:29,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:36:29,221 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-04-17 22:36:29,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 22:36:29,222 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:36:29,222 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:36:29,222 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:36:29,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:36:29,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1164645812, now seen corresponding path program 2 times [2020-04-17 22:36:29,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:36:29,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739901691] [2020-04-17 22:36:29,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:36:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:36:29,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:36:29,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739901691] [2020-04-17 22:36:29,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:36:29,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:36:29,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256912532] [2020-04-17 22:36:29,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:36:29,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:36:29,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:36:29,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:36:29,280 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-04-17 22:36:29,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:36:29,296 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-04-17 22:36:29,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:36:29,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-17 22:36:29,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:36:29,298 INFO L225 Difference]: With dead ends: 67 [2020-04-17 22:36:29,298 INFO L226 Difference]: Without dead ends: 30 [2020-04-17 22:36:29,298 INFO L678 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 [2020-04-17 22:36:29,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-04-17 22:36:29,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-04-17 22:36:29,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-04-17 22:36:29,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-04-17 22:36:29,301 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-04-17 22:36:29,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:36:29,302 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-04-17 22:36:29,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:36:29,302 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-04-17 22:36:29,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 22:36:29,302 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:36:29,303 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:36:29,303 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:36:29,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:36:29,303 INFO L82 PathProgramCache]: Analyzing trace with hash 2098338434, now seen corresponding path program 3 times [2020-04-17 22:36:29,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:36:29,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441929917] [2020-04-17 22:36:29,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:36:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:36:29,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:36:29,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441929917] [2020-04-17 22:36:29,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:36:29,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:36:29,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964632292] [2020-04-17 22:36:29,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:36:29,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:36:29,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:36:29,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:36:29,341 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-04-17 22:36:29,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:36:29,351 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-04-17 22:36:29,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:36:29,351 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-17 22:36:29,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:36:29,352 INFO L225 Difference]: With dead ends: 29 [2020-04-17 22:36:29,352 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 22:36:29,352 INFO L678 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 [2020-04-17 22:36:29,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 22:36:29,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 22:36:29,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 22:36:29,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 22:36:29,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-04-17 22:36:29,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:36:29,354 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 22:36:29,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:36:29,354 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 22:36:29,354 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 22:36:29,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 10:36:29 BasicIcfg [2020-04-17 22:36:29,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 22:36:29,361 INFO L168 Benchmark]: Toolchain (without parser) took 4564.35 ms. Allocated memory was 143.1 MB in the beginning and 247.5 MB in the end (delta: 104.3 MB). Free memory was 101.3 MB in the beginning and 190.1 MB in the end (delta: -88.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2020-04-17 22:36:29,361 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 143.1 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-04-17 22:36:29,362 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.77 ms. Allocated memory was 143.1 MB in the beginning and 202.4 MB in the end (delta: 59.2 MB). Free memory was 99.4 MB in the beginning and 159.4 MB in the end (delta: -60.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-04-17 22:36:29,363 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.21 ms. Allocated memory is still 202.4 MB. Free memory was 159.4 MB in the beginning and 157.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 22:36:29,364 INFO L168 Benchmark]: Boogie Preprocessor took 26.32 ms. Allocated memory is still 202.4 MB. Free memory was 157.4 MB in the beginning and 156.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-17 22:36:29,365 INFO L168 Benchmark]: RCFGBuilder took 466.02 ms. Allocated memory is still 202.4 MB. Free memory was 156.0 MB in the beginning and 133.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-04-17 22:36:29,366 INFO L168 Benchmark]: TraceAbstraction took 3255.59 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 133.1 MB in the beginning and 190.1 MB in the end (delta: -57.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 22:36:29,369 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 143.1 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 737.77 ms. Allocated memory was 143.1 MB in the beginning and 202.4 MB in the end (delta: 59.2 MB). Free memory was 99.4 MB in the beginning and 159.4 MB in the end (delta: -60.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.21 ms. Allocated memory is still 202.4 MB. Free memory was 159.4 MB in the beginning and 157.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.32 ms. Allocated memory is still 202.4 MB. Free memory was 157.4 MB in the beginning and 156.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 466.02 ms. Allocated memory is still 202.4 MB. Free memory was 156.0 MB in the beginning and 133.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3255.59 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 133.1 MB in the beginning and 190.1 MB in the end (delta: -57.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 685 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2732 CheckedPairsTotal, 60 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 141 SDtfs, 114 SDslu, 191 SDs, 0 SdLazy, 96 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 2838 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...