/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 17:38:39,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 17:38:39,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 17:38:39,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 17:38:39,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 17:38:39,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 17:38:39,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 17:38:39,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 17:38:39,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 17:38:39,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 17:38:39,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 17:38:39,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 17:38:39,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 17:38:39,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 17:38:39,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 17:38:39,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 17:38:39,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 17:38:39,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 17:38:39,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 17:38:39,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 17:38:39,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 17:38:39,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 17:38:39,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 17:38:39,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 17:38:39,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 17:38:39,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 17:38:39,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 17:38:39,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 17:38:39,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 17:38:39,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 17:38:39,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 17:38:39,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 17:38:39,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 17:38:39,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 17:38:39,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 17:38:39,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 17:38:39,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 17:38:39,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 17:38:39,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 17:38:39,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 17:38:39,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 17:38:39,724 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-04-17 17:38:39,738 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 17:38:39,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 17:38:39,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 17:38:39,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 17:38:39,740 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 17:38:39,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 17:38:39,740 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 17:38:39,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 17:38:39,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 17:38:39,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 17:38:39,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 17:38:39,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 17:38:39,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 17:38:39,742 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 17:38:39,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 17:38:39,742 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 17:38:39,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 17:38:39,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 17:38:39,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 17:38:39,743 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 17:38:39,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 17:38:39,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 17:38:39,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 17:38:39,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 17:38:39,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 17:38:39,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 17:38:39,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 17:38:39,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 17:38:39,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-04-17 17:38:39,745 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 17:38:40,032 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 17:38:40,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 17:38:40,046 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 17:38:40,047 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 17:38:40,047 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 17:38:40,048 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i [2020-04-17 17:38:40,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf90b0bd8/2504b81bcd0849f39a50c74a54b2bd79/FLAGdba0e6259 [2020-04-17 17:38:40,711 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 17:38:40,712 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i [2020-04-17 17:38:40,729 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf90b0bd8/2504b81bcd0849f39a50c74a54b2bd79/FLAGdba0e6259 [2020-04-17 17:38:40,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf90b0bd8/2504b81bcd0849f39a50c74a54b2bd79 [2020-04-17 17:38:40,951 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 17:38:40,974 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 17:38:40,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 17:38:40,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 17:38:40,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 17:38:40,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 05:38:40" (1/1) ... [2020-04-17 17:38:40,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6abf99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:38:40, skipping insertion in model container [2020-04-17 17:38:40,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 05:38:40" (1/1) ... [2020-04-17 17:38:40,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 17:38:41,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 17:38:41,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 17:38:41,505 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 17:38:41,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 17:38:41,653 INFO L208 MainTranslator]: Completed translation [2020-04-17 17:38:41,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:38:41 WrapperNode [2020-04-17 17:38:41,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 17:38:41,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 17:38:41,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 17:38:41,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 17:38:41,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:38:41" (1/1) ... [2020-04-17 17:38:41,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:38:41" (1/1) ... [2020-04-17 17:38:41,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 17:38:41,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 17:38:41,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 17:38:41,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 17:38:41,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:38:41" (1/1) ... [2020-04-17 17:38:41,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:38:41" (1/1) ... [2020-04-17 17:38:41,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:38:41" (1/1) ... [2020-04-17 17:38:41,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:38:41" (1/1) ... [2020-04-17 17:38:41,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:38:41" (1/1) ... [2020-04-17 17:38:41,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:38:41" (1/1) ... [2020-04-17 17:38:41,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:38:41" (1/1) ... [2020-04-17 17:38:41,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 17:38:41,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 17:38:41,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 17:38:41,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 17:38:41,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:38:41" (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 17:38:41,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 17:38:41,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 17:38:41,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 17:38:41,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 17:38:41,808 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 17:38:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 17:38:41,809 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 17:38:41,809 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 17:38:41,809 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 17:38:41,809 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 17:38:41,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 17:38:41,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 17:38:41,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 17:38:41,811 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 17:38:42,264 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 17:38:42,264 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 17:38:42,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 05:38:42 BoogieIcfgContainer [2020-04-17 17:38:42,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 17:38:42,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 17:38:42,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 17:38:42,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 17:38:42,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 05:38:40" (1/3) ... [2020-04-17 17:38:42,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af8953f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 05:38:42, skipping insertion in model container [2020-04-17 17:38:42,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:38:41" (2/3) ... [2020-04-17 17:38:42,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af8953f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 05:38:42, skipping insertion in model container [2020-04-17 17:38:42,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 05:38:42" (3/3) ... [2020-04-17 17:38:42,279 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc.i [2020-04-17 17:38:42,289 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 17:38:42,290 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 17:38:42,297 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 17:38:42,298 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 17:38:42,330 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,331 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,331 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,332 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,333 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,334 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,335 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,336 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,336 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,336 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,337 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,337 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,338 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,338 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,338 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,339 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,339 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,339 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,347 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,347 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,348 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,348 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,365 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,367 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,368 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,368 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,377 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,377 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,378 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,378 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:38:42,393 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 17:38:42,409 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 17:38:42,409 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 17:38:42,409 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 17:38:42,409 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 17:38:42,410 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 17:38:42,410 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 17:38:42,410 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 17:38:42,410 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 17:38:42,426 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-04-17 17:38:42,428 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-17 17:38:42,472 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-17 17:38:42,472 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 17:38:42,477 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 17:38:42,480 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-17 17:38:42,501 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-17 17:38:42,501 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 17:38:42,502 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 17:38:42,504 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-17 17:38:42,505 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 17:38:44,024 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-17 17:38:44,155 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-04-17 17:38:44,155 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-04-17 17:38:44,164 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-04-17 17:38:44,227 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-04-17 17:38:44,230 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-04-17 17:38:44,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 17:38:44,245 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:38:44,246 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:38:44,247 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:38:44,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:38:44,254 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-04-17 17:38:44,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:38:44,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623314988] [2020-04-17 17:38:44,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:38:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:38:44,532 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 17:38:44,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623314988] [2020-04-17 17:38:44,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:38:44,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 17:38:44,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169298762] [2020-04-17 17:38:44,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-17 17:38:44,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:38:44,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-17 17:38:44,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-17 17:38:44,560 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-04-17 17:38:44,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:38:44,596 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-04-17 17:38:44,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-17 17:38:44,598 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-04-17 17:38:44,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:38:44,616 INFO L225 Difference]: With dead ends: 362 [2020-04-17 17:38:44,616 INFO L226 Difference]: Without dead ends: 298 [2020-04-17 17:38:44,618 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-17 17:38:44,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-04-17 17:38:44,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-04-17 17:38:44,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-04-17 17:38:44,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-04-17 17:38:44,702 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-04-17 17:38:44,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:38:44,704 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-04-17 17:38:44,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-17 17:38:44,704 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-04-17 17:38:44,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 17:38:44,706 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:38:44,706 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:38:44,706 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:38:44,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:38:44,707 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-04-17 17:38:44,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:38:44,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350701340] [2020-04-17 17:38:44,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:38:44,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:38:44,845 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 17:38:44,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350701340] [2020-04-17 17:38:44,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:38:44,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 17:38:44,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909635149] [2020-04-17 17:38:44,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 17:38:44,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:38:44,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 17:38:44,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 17:38:44,849 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-04-17 17:38:44,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:38:44,879 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-04-17 17:38:44,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 17:38:44,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-17 17:38:44,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:38:44,883 INFO L225 Difference]: With dead ends: 330 [2020-04-17 17:38:44,883 INFO L226 Difference]: Without dead ends: 266 [2020-04-17 17:38:44,884 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 17:38:44,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-04-17 17:38:44,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-04-17 17:38:44,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-04-17 17:38:44,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-04-17 17:38:44,920 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-04-17 17:38:44,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:38:44,922 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-04-17 17:38:44,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 17:38:44,922 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-04-17 17:38:44,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 17:38:44,924 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:38:44,924 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:38:44,924 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:38:44,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:38:44,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1226466257, now seen corresponding path program 1 times [2020-04-17 17:38:44,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:38:44,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673941458] [2020-04-17 17:38:44,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:38:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:38:45,006 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 17:38:45,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673941458] [2020-04-17 17:38:45,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:38:45,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 17:38:45,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398003808] [2020-04-17 17:38:45,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 17:38:45,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:38:45,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 17:38:45,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 17:38:45,009 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 4 states. [2020-04-17 17:38:45,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:38:45,032 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-04-17 17:38:45,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 17:38:45,033 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-04-17 17:38:45,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:38:45,035 INFO L225 Difference]: With dead ends: 290 [2020-04-17 17:38:45,035 INFO L226 Difference]: Without dead ends: 242 [2020-04-17 17:38:45,036 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 17:38:45,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-04-17 17:38:45,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-04-17 17:38:45,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-04-17 17:38:45,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-04-17 17:38:45,050 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-04-17 17:38:45,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:38:45,050 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-04-17 17:38:45,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 17:38:45,050 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-04-17 17:38:45,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 17:38:45,052 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:38:45,052 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:38:45,052 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:38:45,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:38:45,053 INFO L82 PathProgramCache]: Analyzing trace with hash -635370963, now seen corresponding path program 1 times [2020-04-17 17:38:45,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:38:45,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564863919] [2020-04-17 17:38:45,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:38:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:38:45,117 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 17:38:45,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564863919] [2020-04-17 17:38:45,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:38:45,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 17:38:45,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012565965] [2020-04-17 17:38:45,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 17:38:45,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:38:45,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 17:38:45,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 17:38:45,119 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 5 states. [2020-04-17 17:38:45,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:38:45,180 INFO L93 Difference]: Finished difference Result 302 states and 815 transitions. [2020-04-17 17:38:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 17:38:45,181 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-04-17 17:38:45,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:38:45,183 INFO L225 Difference]: With dead ends: 302 [2020-04-17 17:38:45,183 INFO L226 Difference]: Without dead ends: 170 [2020-04-17 17:38:45,183 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-17 17:38:45,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-04-17 17:38:45,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-04-17 17:38:45,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-04-17 17:38:45,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 432 transitions. [2020-04-17 17:38:45,190 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 432 transitions. Word has length 11 [2020-04-17 17:38:45,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:38:45,191 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 432 transitions. [2020-04-17 17:38:45,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 17:38:45,191 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 432 transitions. [2020-04-17 17:38:45,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 17:38:45,193 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:38:45,193 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:38:45,193 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:38:45,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:38:45,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1751358773, now seen corresponding path program 1 times [2020-04-17 17:38:45,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:38:45,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724416648] [2020-04-17 17:38:45,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:38:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:38:45,275 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 17:38:45,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724416648] [2020-04-17 17:38:45,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:38:45,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 17:38:45,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236236085] [2020-04-17 17:38:45,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 17:38:45,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:38:45,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 17:38:45,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 17:38:45,280 INFO L87 Difference]: Start difference. First operand 170 states and 432 transitions. Second operand 5 states. [2020-04-17 17:38:45,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:38:45,339 INFO L93 Difference]: Finished difference Result 182 states and 446 transitions. [2020-04-17 17:38:45,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-17 17:38:45,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-04-17 17:38:45,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:38:45,341 INFO L225 Difference]: With dead ends: 182 [2020-04-17 17:38:45,341 INFO L226 Difference]: Without dead ends: 158 [2020-04-17 17:38:45,342 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-04-17 17:38:45,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-04-17 17:38:45,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-04-17 17:38:45,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-04-17 17:38:45,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 394 transitions. [2020-04-17 17:38:45,348 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 394 transitions. Word has length 12 [2020-04-17 17:38:45,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:38:45,348 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 394 transitions. [2020-04-17 17:38:45,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 17:38:45,348 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 394 transitions. [2020-04-17 17:38:45,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-17 17:38:45,350 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:38:45,350 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:38:45,350 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:38:45,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:38:45,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1491329578, now seen corresponding path program 1 times [2020-04-17 17:38:45,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:38:45,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726640576] [2020-04-17 17:38:45,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:38:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:38:45,448 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 17:38:45,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726640576] [2020-04-17 17:38:45,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:38:45,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 17:38:45,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270823345] [2020-04-17 17:38:45,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 17:38:45,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:38:45,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 17:38:45,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 17:38:45,452 INFO L87 Difference]: Start difference. First operand 158 states and 394 transitions. Second operand 5 states. [2020-04-17 17:38:45,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:38:45,497 INFO L93 Difference]: Finished difference Result 212 states and 513 transitions. [2020-04-17 17:38:45,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 17:38:45,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-04-17 17:38:45,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:38:45,500 INFO L225 Difference]: With dead ends: 212 [2020-04-17 17:38:45,500 INFO L226 Difference]: Without dead ends: 98 [2020-04-17 17:38:45,500 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-17 17:38:45,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-04-17 17:38:45,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-04-17 17:38:45,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-04-17 17:38:45,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 218 transitions. [2020-04-17 17:38:45,507 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 218 transitions. Word has length 13 [2020-04-17 17:38:45,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:38:45,507 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 218 transitions. [2020-04-17 17:38:45,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 17:38:45,508 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 218 transitions. [2020-04-17 17:38:45,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-17 17:38:45,509 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:38:45,509 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:38:45,509 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:38:45,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:38:45,510 INFO L82 PathProgramCache]: Analyzing trace with hash -647415272, now seen corresponding path program 1 times [2020-04-17 17:38:45,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:38:45,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127280438] [2020-04-17 17:38:45,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:38:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:38:45,615 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 17:38:45,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127280438] [2020-04-17 17:38:45,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:38:45,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 17:38:45,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209464220] [2020-04-17 17:38:45,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 17:38:45,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:38:45,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 17:38:45,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 17:38:45,621 INFO L87 Difference]: Start difference. First operand 98 states and 218 transitions. Second operand 5 states. [2020-04-17 17:38:45,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:38:45,661 INFO L93 Difference]: Finished difference Result 86 states and 186 transitions. [2020-04-17 17:38:45,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 17:38:45,662 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-04-17 17:38:45,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:38:45,662 INFO L225 Difference]: With dead ends: 86 [2020-04-17 17:38:45,662 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 17:38:45,663 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-17 17:38:45,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 17:38:45,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 17:38:45,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 17:38:45,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 17:38:45,664 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-04-17 17:38:45,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:38:45,664 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 17:38:45,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 17:38:45,665 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 17:38:45,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 17:38:45,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 05:38:45 BasicIcfg [2020-04-17 17:38:45,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 17:38:45,673 INFO L168 Benchmark]: Toolchain (without parser) took 4719.60 ms. Allocated memory was 143.7 MB in the beginning and 252.2 MB in the end (delta: 108.5 MB). Free memory was 100.7 MB in the beginning and 206.0 MB in the end (delta: -105.3 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-04-17 17:38:45,680 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-17 17:38:45,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.71 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 98.6 MB in the beginning and 157.6 MB in the end (delta: -59.0 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-04-17 17:38:45,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.23 ms. Allocated memory is still 200.8 MB. Free memory was 157.6 MB in the beginning and 155.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-04-17 17:38:45,684 INFO L168 Benchmark]: Boogie Preprocessor took 26.99 ms. Allocated memory is still 200.8 MB. Free memory was 155.4 MB in the beginning and 154.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-17 17:38:45,684 INFO L168 Benchmark]: RCFGBuilder took 532.31 ms. Allocated memory is still 200.8 MB. Free memory was 154.0 MB in the beginning and 131.3 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-04-17 17:38:45,688 INFO L168 Benchmark]: TraceAbstraction took 3400.10 ms. Allocated memory was 200.8 MB in the beginning and 252.2 MB in the end (delta: 51.4 MB). Free memory was 130.6 MB in the beginning and 206.0 MB in the end (delta: -75.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 17:38:45,699 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 678.71 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 98.6 MB in the beginning and 157.6 MB in the end (delta: -59.0 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.23 ms. Allocated memory is still 200.8 MB. Free memory was 157.6 MB in the beginning and 155.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.99 ms. Allocated memory is still 200.8 MB. Free memory was 155.4 MB in the beginning and 154.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 532.31 ms. Allocated memory is still 200.8 MB. Free memory was 154.0 MB in the beginning and 131.3 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3400.10 ms. Allocated memory was 200.8 MB in the beginning and 252.2 MB in the end (delta: 51.4 MB). Free memory was 130.6 MB in the beginning and 206.0 MB in the end (delta: -75.3 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: 1.7s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 688 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 151 SDtfs, 171 SDslu, 225 SDs, 0 SdLazy, 66 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2556 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...