/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/safe031_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 04:11:10,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 04:11:10,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 04:11:10,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 04:11:10,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 04:11:10,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 04:11:10,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 04:11:10,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 04:11:10,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 04:11:10,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 04:11:10,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 04:11:10,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 04:11:10,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 04:11:10,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 04:11:10,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 04:11:10,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 04:11:10,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 04:11:10,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 04:11:10,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 04:11:10,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 04:11:10,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 04:11:10,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 04:11:10,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 04:11:10,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 04:11:10,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 04:11:10,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 04:11:10,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 04:11:10,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 04:11:10,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 04:11:10,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 04:11:10,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 04:11:10,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 04:11:10,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 04:11:10,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 04:11:10,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 04:11:10,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 04:11:10,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 04:11:10,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 04:11:10,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 04:11:10,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 04:11:10,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 04:11:10,744 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 [2019-12-27 04:11:10,764 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 04:11:10,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 04:11:10,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 04:11:10,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 04:11:10,768 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 04:11:10,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 04:11:10,768 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 04:11:10,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 04:11:10,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 04:11:10,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 04:11:10,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 04:11:10,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 04:11:10,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 04:11:10,769 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 04:11:10,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 04:11:10,770 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 04:11:10,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 04:11:10,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 04:11:10,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 04:11:10,771 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 04:11:10,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 04:11:10,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 04:11:10,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 04:11:10,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 04:11:10,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 04:11:10,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 04:11:10,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 04:11:10,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 04:11:10,772 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 04:11:11,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 04:11:11,052 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 04:11:11,055 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 04:11:11,057 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 04:11:11,057 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 04:11:11,058 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2019-12-27 04:11:11,135 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5140e2a51/072e31d5148640b6b58eadfc7c2d36ab/FLAGd4d012829 [2019-12-27 04:11:11,689 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 04:11:11,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2019-12-27 04:11:11,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5140e2a51/072e31d5148640b6b58eadfc7c2d36ab/FLAGd4d012829 [2019-12-27 04:11:11,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5140e2a51/072e31d5148640b6b58eadfc7c2d36ab [2019-12-27 04:11:12,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 04:11:12,010 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 04:11:12,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 04:11:12,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 04:11:12,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 04:11:12,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:11:11" (1/1) ... [2019-12-27 04:11:12,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@409796a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:11:12, skipping insertion in model container [2019-12-27 04:11:12,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:11:11" (1/1) ... [2019-12-27 04:11:12,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 04:11:12,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 04:11:12,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:11:12,579 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 04:11:12,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:11:12,718 INFO L208 MainTranslator]: Completed translation [2019-12-27 04:11:12,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:11:12 WrapperNode [2019-12-27 04:11:12,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 04:11:12,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 04:11:12,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 04:11:12,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 04:11:12,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:11:12" (1/1) ... [2019-12-27 04:11:12,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:11:12" (1/1) ... [2019-12-27 04:11:12,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 04:11:12,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 04:11:12,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 04:11:12,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 04:11:12,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:11:12" (1/1) ... [2019-12-27 04:11:12,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:11:12" (1/1) ... [2019-12-27 04:11:12,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:11:12" (1/1) ... [2019-12-27 04:11:12,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:11:12" (1/1) ... [2019-12-27 04:11:12,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:11:12" (1/1) ... [2019-12-27 04:11:12,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:11:12" (1/1) ... [2019-12-27 04:11:12,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:11:12" (1/1) ... [2019-12-27 04:11:12,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 04:11:12,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 04:11:12,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 04:11:12,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 04:11:12,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:11:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 04:11:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 04:11:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 04:11:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 04:11:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 04:11:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 04:11:12,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 04:11:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 04:11:12,900 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 04:11:12,901 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 04:11:12,901 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 04:11:12,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 04:11:12,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 04:11:12,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 04:11:12,904 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 04:11:13,266 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 04:11:13,266 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 04:11:13,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:11:13 BoogieIcfgContainer [2019-12-27 04:11:13,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 04:11:13,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 04:11:13,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 04:11:13,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 04:11:13,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 04:11:11" (1/3) ... [2019-12-27 04:11:13,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ae7b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:11:13, skipping insertion in model container [2019-12-27 04:11:13,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:11:12" (2/3) ... [2019-12-27 04:11:13,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ae7b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:11:13, skipping insertion in model container [2019-12-27 04:11:13,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:11:13" (3/3) ... [2019-12-27 04:11:13,276 INFO L109 eAbstractionObserver]: Analyzing ICFG safe031_tso.oepc.i [2019-12-27 04:11:13,286 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 04:11:13,287 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 04:11:13,294 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 04:11:13,294 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 04:11:13,327 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,327 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,327 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,328 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,328 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,329 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,329 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,329 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,330 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,330 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,334 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,334 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,335 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,335 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,335 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,336 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,336 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,336 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,341 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,342 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,342 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,342 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,347 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,348 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,348 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,348 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,351 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,351 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,351 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,352 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:11:13,368 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 04:11:13,389 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:11:13,389 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:11:13,389 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:11:13,389 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:11:13,389 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:11:13,390 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:11:13,390 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:11:13,390 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:11:13,404 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 04:11:13,406 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 04:11:13,459 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 04:11:13,460 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 04:11:13,465 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 04:11:13,467 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 04:11:13,486 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 04:11:13,486 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 04:11:13,487 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 04:11:13,489 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 04:11:13,490 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 04:11:14,933 INFO L206 etLargeBlockEncoding]: Checked pairs total: 469 [2019-12-27 04:11:14,933 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 04:11:14,937 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 04:11:14,951 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 04:11:14,954 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 04:11:14,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 04:11:14,961 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:11:14,962 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:11:14,962 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:11:14,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:11:14,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1445202822, now seen corresponding path program 1 times [2019-12-27 04:11:14,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:11:14,975 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942332247] [2019-12-27 04:11:14,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:11:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:11:15,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:11:15,207 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942332247] [2019-12-27 04:11:15,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:11:15,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 04:11:15,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108619724] [2019-12-27 04:11:15,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:11:15,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:11:15,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:11:15,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:11:15,227 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 04:11:15,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:11:15,259 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-27 04:11:15,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:11:15,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 04:11:15,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:11:15,278 INFO L225 Difference]: With dead ends: 52 [2019-12-27 04:11:15,278 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 04:11:15,280 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:11:15,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 04:11:15,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 04:11:15,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 04:11:15,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 04:11:15,331 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 04:11:15,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:11:15,332 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 04:11:15,332 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:11:15,332 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 04:11:15,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 04:11:15,334 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:11:15,335 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:11:15,335 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:11:15,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:11:15,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1662106288, now seen corresponding path program 1 times [2019-12-27 04:11:15,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:11:15,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579417892] [2019-12-27 04:11:15,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:11:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:11:15,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:11:15,461 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579417892] [2019-12-27 04:11:15,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:11:15,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 04:11:15,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996206407] [2019-12-27 04:11:15,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:11:15,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:11:15,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:11:15,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:11:15,465 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 04:11:15,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:11:15,476 INFO L93 Difference]: Finished difference Result 35 states and 66 transitions. [2019-12-27 04:11:15,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:11:15,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 04:11:15,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:11:15,479 INFO L225 Difference]: With dead ends: 35 [2019-12-27 04:11:15,479 INFO L226 Difference]: Without dead ends: 35 [2019-12-27 04:11:15,480 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:11:15,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-12-27 04:11:15,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-12-27 04:11:15,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-27 04:11:15,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 66 transitions. [2019-12-27 04:11:15,489 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 66 transitions. Word has length 9 [2019-12-27 04:11:15,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:11:15,489 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 66 transitions. [2019-12-27 04:11:15,490 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:11:15,490 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 66 transitions. [2019-12-27 04:11:15,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 04:11:15,490 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:11:15,490 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:11:15,491 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:11:15,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:11:15,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1851665460, now seen corresponding path program 1 times [2019-12-27 04:11:15,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:11:15,492 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336485587] [2019-12-27 04:11:15,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:11:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:11:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:11:15,545 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336485587] [2019-12-27 04:11:15,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:11:15,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 04:11:15,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276821031] [2019-12-27 04:11:15,547 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:11:15,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:11:15,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:11:15,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:11:15,548 INFO L87 Difference]: Start difference. First operand 35 states and 66 transitions. Second operand 3 states. [2019-12-27 04:11:15,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:11:15,557 INFO L93 Difference]: Finished difference Result 38 states and 65 transitions. [2019-12-27 04:11:15,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:11:15,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 04:11:15,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:11:15,559 INFO L225 Difference]: With dead ends: 38 [2019-12-27 04:11:15,559 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 04:11:15,560 INFO L631 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 [2019-12-27 04:11:15,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 04:11:15,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2019-12-27 04:11:15,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-27 04:11:15,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 57 transitions. [2019-12-27 04:11:15,565 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 57 transitions. Word has length 9 [2019-12-27 04:11:15,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:11:15,565 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 57 transitions. [2019-12-27 04:11:15,565 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:11:15,565 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 57 transitions. [2019-12-27 04:11:15,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 04:11:15,566 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:11:15,566 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:11:15,567 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:11:15,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:11:15,567 INFO L82 PathProgramCache]: Analyzing trace with hash -6187364, now seen corresponding path program 1 times [2019-12-27 04:11:15,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:11:15,568 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737917464] [2019-12-27 04:11:15,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:11:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:11:15,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:11:15,612 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737917464] [2019-12-27 04:11:15,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:11:15,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 04:11:15,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68619785] [2019-12-27 04:11:15,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:11:15,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:11:15,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:11:15,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:11:15,617 INFO L87 Difference]: Start difference. First operand 33 states and 57 transitions. Second operand 3 states. [2019-12-27 04:11:15,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:11:15,635 INFO L93 Difference]: Finished difference Result 37 states and 59 transitions. [2019-12-27 04:11:15,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:11:15,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 04:11:15,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:11:15,637 INFO L225 Difference]: With dead ends: 37 [2019-12-27 04:11:15,637 INFO L226 Difference]: Without dead ends: 23 [2019-12-27 04:11:15,637 INFO L631 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 [2019-12-27 04:11:15,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-12-27 04:11:15,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-12-27 04:11:15,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 04:11:15,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2019-12-27 04:11:15,646 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 29 transitions. Word has length 10 [2019-12-27 04:11:15,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:11:15,646 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 29 transitions. [2019-12-27 04:11:15,646 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:11:15,647 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2019-12-27 04:11:15,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 04:11:15,647 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:11:15,648 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:11:15,648 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:11:15,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:11:15,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1567103428, now seen corresponding path program 1 times [2019-12-27 04:11:15,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:11:15,649 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127111568] [2019-12-27 04:11:15,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:11:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:11:15,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:11:15,781 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127111568] [2019-12-27 04:11:15,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:11:15,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 04:11:15,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106966556] [2019-12-27 04:11:15,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 04:11:15,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:11:15,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 04:11:15,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:11:15,785 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. Second operand 6 states. [2019-12-27 04:11:15,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:11:15,862 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2019-12-27 04:11:15,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:11:15,862 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 04:11:15,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:11:15,863 INFO L225 Difference]: With dead ends: 22 [2019-12-27 04:11:15,863 INFO L226 Difference]: Without dead ends: 14 [2019-12-27 04:11:15,864 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 04:11:15,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-27 04:11:15,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-27 04:11:15,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-27 04:11:15,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-27 04:11:15,869 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2019-12-27 04:11:15,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:11:15,872 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-27 04:11:15,872 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 04:11:15,872 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-27 04:11:15,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:11:15,873 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:11:15,873 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:11:15,873 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:11:15,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:11:15,874 INFO L82 PathProgramCache]: Analyzing trace with hash 505163460, now seen corresponding path program 1 times [2019-12-27 04:11:15,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:11:15,874 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037975931] [2019-12-27 04:11:15,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:11:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:11:15,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:11:15,940 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037975931] [2019-12-27 04:11:15,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:11:15,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:11:15,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043463372] [2019-12-27 04:11:15,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 04:11:15,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:11:15,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 04:11:15,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 04:11:15,943 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 4 states. [2019-12-27 04:11:15,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:11:15,957 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-27 04:11:15,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 04:11:15,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 04:11:15,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:11:15,957 INFO L225 Difference]: With dead ends: 13 [2019-12-27 04:11:15,957 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 04:11:15,958 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:11:15,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 04:11:15,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 04:11:15,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 04:11:15,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 04:11:15,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 04:11:15,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:11:15,960 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 04:11:15,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 04:11:15,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 04:11:15,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 04:11:15,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 04:11:15 BasicIcfg [2019-12-27 04:11:15,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 04:11:15,971 INFO L168 Benchmark]: Toolchain (without parser) took 3958.62 ms. Allocated memory was 138.9 MB in the beginning and 248.5 MB in the end (delta: 109.6 MB). Free memory was 102.4 MB in the beginning and 146.4 MB in the end (delta: -44.0 MB). Peak memory consumption was 65.6 MB. Max. memory is 7.1 GB. [2019-12-27 04:11:15,972 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 04:11:15,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.74 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 158.6 MB in the end (delta: -56.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2019-12-27 04:11:15,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.55 ms. Allocated memory is still 203.4 MB. Free memory was 158.6 MB in the beginning and 156.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 04:11:15,980 INFO L168 Benchmark]: Boogie Preprocessor took 43.33 ms. Allocated memory is still 203.4 MB. Free memory was 156.7 MB in the beginning and 154.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 04:11:15,981 INFO L168 Benchmark]: RCFGBuilder took 431.46 ms. Allocated memory is still 203.4 MB. Free memory was 154.8 MB in the beginning and 134.2 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-27 04:11:15,982 INFO L168 Benchmark]: TraceAbstraction took 2697.94 ms. Allocated memory was 203.4 MB in the beginning and 248.5 MB in the end (delta: 45.1 MB). Free memory was 134.2 MB in the beginning and 146.4 MB in the end (delta: -12.2 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2019-12-27 04:11:15,990 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.74 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 158.6 MB in the end (delta: -56.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 72.55 ms. Allocated memory is still 203.4 MB. Free memory was 158.6 MB in the beginning and 156.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.33 ms. Allocated memory is still 203.4 MB. Free memory was 156.7 MB in the beginning and 154.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 431.46 ms. Allocated memory is still 203.4 MB. Free memory was 154.8 MB in the beginning and 134.2 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2697.94 ms. Allocated memory was 203.4 MB in the beginning and 248.5 MB in the end (delta: 45.1 MB). Free memory was 134.2 MB in the beginning and 146.4 MB in the end (delta: -12.2 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 240 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 469 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 21 SDslu, 44 SDs, 0 SdLazy, 34 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 1123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...