/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 07:40:16,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 07:40:16,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 07:40:16,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 07:40:16,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 07:40:16,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 07:40:16,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 07:40:16,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 07:40:16,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 07:40:16,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 07:40:16,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 07:40:16,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 07:40:16,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 07:40:16,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 07:40:16,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 07:40:16,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 07:40:16,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 07:40:16,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 07:40:16,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 07:40:16,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 07:40:16,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 07:40:16,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 07:40:16,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 07:40:16,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 07:40:16,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 07:40:16,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 07:40:16,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 07:40:16,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 07:40:16,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 07:40:16,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 07:40:16,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 07:40:16,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 07:40:16,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 07:40:16,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 07:40:16,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 07:40:16,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 07:40:16,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 07:40:16,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 07:40:16,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 07:40:16,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 07:40:16,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 07:40:16,774 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-27 07:40:16,798 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 07:40:16,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 07:40:16,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 07:40:16,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 07:40:16,800 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 07:40:16,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 07:40:16,801 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 07:40:16,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 07:40:16,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 07:40:16,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 07:40:16,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 07:40:16,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 07:40:16,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 07:40:16,803 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 07:40:16,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 07:40:16,804 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 07:40:16,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 07:40:16,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 07:40:16,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 07:40:16,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 07:40:16,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 07:40:16,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:40:16,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 07:40:16,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 07:40:16,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 07:40:16,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 07:40:16,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 07:40:16,806 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 07:40:16,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 07:40:16,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 07:40:17,067 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 07:40:17,079 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 07:40:17,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 07:40:17,085 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 07:40:17,085 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 07:40:17,086 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i [2019-12-27 07:40:17,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a243eab7/e7c7899d3ff345a4a625ab1702057a3b/FLAG97ddeeb50 [2019-12-27 07:40:17,678 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 07:40:17,678 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i [2019-12-27 07:40:17,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a243eab7/e7c7899d3ff345a4a625ab1702057a3b/FLAG97ddeeb50 [2019-12-27 07:40:17,990 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a243eab7/e7c7899d3ff345a4a625ab1702057a3b [2019-12-27 07:40:18,000 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 07:40:18,002 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 07:40:18,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 07:40:18,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 07:40:18,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 07:40:18,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:40:17" (1/1) ... [2019-12-27 07:40:18,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e97b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:18, skipping insertion in model container [2019-12-27 07:40:18,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:40:17" (1/1) ... [2019-12-27 07:40:18,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 07:40:18,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 07:40:18,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:40:18,580 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 07:40:18,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:40:18,711 INFO L208 MainTranslator]: Completed translation [2019-12-27 07:40:18,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:18 WrapperNode [2019-12-27 07:40:18,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 07:40:18,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 07:40:18,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 07:40:18,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 07:40:18,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:18" (1/1) ... [2019-12-27 07:40:18,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:18" (1/1) ... [2019-12-27 07:40:18,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 07:40:18,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 07:40:18,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 07:40:18,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 07:40:18,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:18" (1/1) ... [2019-12-27 07:40:18,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:18" (1/1) ... [2019-12-27 07:40:18,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:18" (1/1) ... [2019-12-27 07:40:18,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:18" (1/1) ... [2019-12-27 07:40:18,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:18" (1/1) ... [2019-12-27 07:40:18,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:18" (1/1) ... [2019-12-27 07:40:18,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:18" (1/1) ... [2019-12-27 07:40:18,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 07:40:18,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 07:40:18,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 07:40:18,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 07:40:18,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:18" (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 07:40:18,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 07:40:18,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 07:40:18,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 07:40:18,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 07:40:18,857 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 07:40:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 07:40:18,857 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 07:40:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 07:40:18,857 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 07:40:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 07:40:18,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 07:40:18,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 07:40:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 07:40:18,860 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 07:40:19,239 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 07:40:19,240 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 07:40:19,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:40:19 BoogieIcfgContainer [2019-12-27 07:40:19,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 07:40:19,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 07:40:19,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 07:40:19,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 07:40:19,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:40:17" (1/3) ... [2019-12-27 07:40:19,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b330225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:40:19, skipping insertion in model container [2019-12-27 07:40:19,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:18" (2/3) ... [2019-12-27 07:40:19,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b330225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:40:19, skipping insertion in model container [2019-12-27 07:40:19,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:40:19" (3/3) ... [2019-12-27 07:40:19,249 INFO L109 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc.i [2019-12-27 07:40:19,258 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 07:40:19,258 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 07:40:19,265 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 07:40:19,266 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 07:40:19,291 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,291 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,291 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,292 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,292 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,293 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,293 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,293 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,294 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,294 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,294 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,294 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,295 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,295 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,295 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,295 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,296 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,296 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,299 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,300 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,300 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,300 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,313 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,313 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,313 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,314 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,317 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,318 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,318 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,318 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:19,337 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 07:40:19,357 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 07:40:19,357 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 07:40:19,357 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 07:40:19,357 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 07:40:19,357 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 07:40:19,358 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 07:40:19,358 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 07:40:19,358 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 07:40:19,372 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 07:40:19,375 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 07:40:19,433 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 07:40:19,433 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:40:19,444 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:40:19,449 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 07:40:19,471 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 07:40:19,471 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:40:19,472 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:40:19,474 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 07:40:19,475 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 07:40:20,811 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 07:40:20,894 INFO L206 etLargeBlockEncoding]: Checked pairs total: 478 [2019-12-27 07:40:20,894 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-27 07:40:20,899 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 07:40:20,914 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 07:40:20,916 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 07:40:20,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 07:40:20,924 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:40:20,925 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:40:20,926 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:40:20,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:40:20,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1804038140, now seen corresponding path program 1 times [2019-12-27 07:40:20,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:40:20,942 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039332769] [2019-12-27 07:40:20,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:40:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:40:21,157 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 07:40:21,158 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039332769] [2019-12-27 07:40:21,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:40:21,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:40:21,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518759933] [2019-12-27 07:40:21,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:40:21,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:40:21,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:40:21,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:40:21,185 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 07:40:21,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:40:21,216 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-27 07:40:21,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:40:21,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 07:40:21,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:40:21,230 INFO L225 Difference]: With dead ends: 50 [2019-12-27 07:40:21,231 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 07:40:21,232 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 07:40:21,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 07:40:21,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 07:40:21,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 07:40:21,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 07:40:21,273 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 07:40:21,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:40:21,275 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 07:40:21,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:40:21,275 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 07:40:21,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:40:21,276 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:40:21,276 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:40:21,276 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:40:21,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:40:21,277 INFO L82 PathProgramCache]: Analyzing trace with hash 90665039, now seen corresponding path program 1 times [2019-12-27 07:40:21,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:40:21,277 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734053408] [2019-12-27 07:40:21,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:40:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:40:21,388 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 07:40:21,389 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734053408] [2019-12-27 07:40:21,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:40:21,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:40:21,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216234311] [2019-12-27 07:40:21,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:40:21,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:40:21,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:40:21,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:40:21,392 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 07:40:21,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:40:21,437 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 07:40:21,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:40:21,438 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 07:40:21,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:40:21,439 INFO L225 Difference]: With dead ends: 36 [2019-12-27 07:40:21,439 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 07:40:21,440 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:40:21,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 07:40:21,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 07:40:21,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 07:40:21,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 07:40:21,447 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 07:40:21,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:40:21,448 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 07:40:21,448 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:40:21,448 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 07:40:21,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:40:21,449 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:40:21,449 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:40:21,449 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:40:21,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:40:21,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1542654109, now seen corresponding path program 1 times [2019-12-27 07:40:21,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:40:21,450 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321963600] [2019-12-27 07:40:21,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:40:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:40:21,523 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 07:40:21,524 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321963600] [2019-12-27 07:40:21,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:40:21,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:40:21,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389559136] [2019-12-27 07:40:21,524 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:40:21,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:40:21,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:40:21,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:40:21,525 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-27 07:40:21,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:40:21,550 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2019-12-27 07:40:21,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:40:21,551 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 07:40:21,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:40:21,552 INFO L225 Difference]: With dead ends: 27 [2019-12-27 07:40:21,552 INFO L226 Difference]: Without dead ends: 27 [2019-12-27 07:40:21,552 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 07:40:21,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-27 07:40:21,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-27 07:40:21,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-27 07:40:21,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-27 07:40:21,559 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-27 07:40:21,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:40:21,559 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-27 07:40:21,559 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:40:21,559 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-27 07:40:21,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:40:21,560 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:40:21,560 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:40:21,560 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:40:21,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:40:21,561 INFO L82 PathProgramCache]: Analyzing trace with hash -525836137, now seen corresponding path program 1 times [2019-12-27 07:40:21,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:40:21,562 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916175888] [2019-12-27 07:40:21,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:40:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:40:21,629 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 07:40:21,630 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916175888] [2019-12-27 07:40:21,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:40:21,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:40:21,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104189094] [2019-12-27 07:40:21,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:40:21,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:40:21,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:40:21,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:40:21,632 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-27 07:40:21,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:40:21,669 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-27 07:40:21,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:40:21,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:40:21,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:40:21,670 INFO L225 Difference]: With dead ends: 29 [2019-12-27 07:40:21,670 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 07:40:21,671 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:40:21,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 07:40:21,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 07:40:21,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 07:40:21,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 07:40:21,675 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-27 07:40:21,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:40:21,677 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 07:40:21,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:40:21,677 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 07:40:21,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:40:21,678 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:40:21,678 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:40:21,678 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:40:21,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:40:21,679 INFO L82 PathProgramCache]: Analyzing trace with hash -577580537, now seen corresponding path program 2 times [2019-12-27 07:40:21,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:40:21,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930875849] [2019-12-27 07:40:21,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:40:21,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:40:21,762 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 07:40:21,766 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930875849] [2019-12-27 07:40:21,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:40:21,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 07:40:21,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498167491] [2019-12-27 07:40:21,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:40:21,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:40:21,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:40:21,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:40:21,768 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-27 07:40:21,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:40:21,791 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 07:40:21,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:40:21,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:40:21,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:40:21,792 INFO L225 Difference]: With dead ends: 16 [2019-12-27 07:40:21,792 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 07:40:21,792 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 07:40:21,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 07:40:21,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 07:40:21,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 07:40:21,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 07:40:21,793 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 07:40:21,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:40:21,794 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 07:40:21,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:40:21,794 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 07:40:21,794 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 07:40:21,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:40:21 BasicIcfg [2019-12-27 07:40:21,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 07:40:21,800 INFO L168 Benchmark]: Toolchain (without parser) took 3798.34 ms. Allocated memory was 138.9 MB in the beginning and 245.9 MB in the end (delta: 107.0 MB). Free memory was 102.4 MB in the beginning and 160.9 MB in the end (delta: -58.5 MB). Peak memory consumption was 48.4 MB. Max. memory is 7.1 GB. [2019-12-27 07:40:21,801 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 07:40:21,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.03 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 160.3 MB in the end (delta: -58.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-12-27 07:40:21,803 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.89 ms. Allocated memory is still 203.4 MB. Free memory was 160.3 MB in the beginning and 158.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 07:40:21,804 INFO L168 Benchmark]: Boogie Preprocessor took 25.07 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 157.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:40:21,805 INFO L168 Benchmark]: RCFGBuilder took 438.70 ms. Allocated memory is still 203.4 MB. Free memory was 157.0 MB in the beginning and 136.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 07:40:21,806 INFO L168 Benchmark]: TraceAbstraction took 2555.82 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 135.9 MB in the beginning and 160.9 MB in the end (delta: -25.0 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. [2019-12-27 07:40:21,810 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 709.03 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 160.3 MB in the end (delta: -58.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.89 ms. Allocated memory is still 203.4 MB. Free memory was 160.3 MB in the beginning and 158.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.07 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 157.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 438.70 ms. Allocated memory is still 203.4 MB. Free memory was 157.0 MB in the beginning and 136.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2555.82 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 135.9 MB in the beginning and 160.9 MB in the end (delta: -25.0 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 232 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 478 CheckedPairsTotal, 47 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 54 SDtfs, 25 SDslu, 35 SDs, 0 SdLazy, 24 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...