/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 01:37:34,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 01:37:34,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 01:37:34,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 01:37:34,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 01:37:34,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 01:37:34,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 01:37:34,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 01:37:34,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 01:37:34,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 01:37:34,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 01:37:34,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 01:37:34,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 01:37:34,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 01:37:34,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 01:37:34,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 01:37:34,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 01:37:34,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 01:37:34,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 01:37:34,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 01:37:34,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 01:37:34,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 01:37:34,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 01:37:34,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 01:37:34,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-18 01:37:34,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 01:37:34,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 01:37:34,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 01:37:34,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 01:37:34,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 01:37:34,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 01:37:34,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 01:37:34,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 01:37:34,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 01:37:34,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 01:37:34,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 01:37:34,755 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-18 01:37:34,782 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 01:37:34,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 01:37:34,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 01:37:34,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 01:37:34,784 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 01:37:34,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 01:37:34,784 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 01:37:34,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 01:37:34,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 01:37:34,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 01:37:34,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 01:37:34,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 01:37:34,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 01:37:34,786 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 01:37:34,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 01:37:34,786 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 01:37:34,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 01:37:34,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 01:37:34,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 01:37:34,787 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 01:37:34,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 01:37:34,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 01:37:34,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 01:37:34,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 01:37:34,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 01:37:34,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 01:37:34,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 01:37:34,788 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 01:37:34,789 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 01:37:34,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 01:37:34,789 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 01:37:35,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 01:37:35,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 01:37:35,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 01:37:35,274 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 01:37:35,275 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 01:37:35,280 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2020-09-18 01:37:35,368 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb1de915/c03b30a7dc0a4c90911e951e9ef0f3d6/FLAG654764ce7 [2020-09-18 01:37:36,013 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 01:37:36,014 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2020-09-18 01:37:36,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb1de915/c03b30a7dc0a4c90911e951e9ef0f3d6/FLAG654764ce7 [2020-09-18 01:37:36,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb1de915/c03b30a7dc0a4c90911e951e9ef0f3d6 [2020-09-18 01:37:36,263 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 01:37:36,269 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 01:37:36,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 01:37:36,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 01:37:36,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 01:37:36,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 01:37:36" (1/1) ... [2020-09-18 01:37:36,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4334642d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:37:36, skipping insertion in model container [2020-09-18 01:37:36,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 01:37:36" (1/1) ... [2020-09-18 01:37:36,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 01:37:36,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 01:37:36,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 01:37:36,879 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 01:37:36,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 01:37:37,004 INFO L208 MainTranslator]: Completed translation [2020-09-18 01:37:37,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:37:37 WrapperNode [2020-09-18 01:37:37,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 01:37:37,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 01:37:37,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 01:37:37,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 01:37:37,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:37:37" (1/1) ... [2020-09-18 01:37:37,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:37:37" (1/1) ... [2020-09-18 01:37:37,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 01:37:37,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 01:37:37,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 01:37:37,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 01:37:37,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:37:37" (1/1) ... [2020-09-18 01:37:37,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:37:37" (1/1) ... [2020-09-18 01:37:37,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:37:37" (1/1) ... [2020-09-18 01:37:37,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:37:37" (1/1) ... [2020-09-18 01:37:37,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:37:37" (1/1) ... [2020-09-18 01:37:37,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:37:37" (1/1) ... [2020-09-18 01:37:37,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:37:37" (1/1) ... [2020-09-18 01:37:37,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 01:37:37,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 01:37:37,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 01:37:37,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 01:37:37,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:37:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 01:37:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 01:37:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 01:37:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 01:37:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 01:37:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 01:37:37,178 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 01:37:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 01:37:37,178 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 01:37:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-18 01:37:37,179 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-18 01:37:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 01:37:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 01:37:37,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 01:37:37,182 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 01:37:37,614 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 01:37:37,614 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 01:37:37,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 01:37:37 BoogieIcfgContainer [2020-09-18 01:37:37,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 01:37:37,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 01:37:37,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 01:37:37,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 01:37:37,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 01:37:36" (1/3) ... [2020-09-18 01:37:37,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3188c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 01:37:37, skipping insertion in model container [2020-09-18 01:37:37,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:37:37" (2/3) ... [2020-09-18 01:37:37,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3188c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 01:37:37, skipping insertion in model container [2020-09-18 01:37:37,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 01:37:37" (3/3) ... [2020-09-18 01:37:37,630 INFO L109 eAbstractionObserver]: Analyzing ICFG safe024_tso.oepc.i [2020-09-18 01:37:37,642 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 01:37:37,642 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 01:37:37,653 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 01:37:37,654 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 01:37:37,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,689 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,690 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,690 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,690 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,691 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,691 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,691 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,692 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,692 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,692 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,693 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,693 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,693 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,693 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,698 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,699 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,699 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,699 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,707 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,707 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,707 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,708 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,710 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,710 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,710 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,711 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:37:37,734 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-18 01:37:37,761 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 01:37:37,762 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 01:37:37,762 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 01:37:37,762 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 01:37:37,762 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 01:37:37,763 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 01:37:37,763 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 01:37:37,763 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 01:37:37,780 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-18 01:37:37,783 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-18 01:37:37,833 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-18 01:37:37,833 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 01:37:37,839 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-18 01:37:37,842 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-18 01:37:37,864 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-18 01:37:37,865 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 01:37:37,865 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-18 01:37:37,868 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-18 01:37:37,869 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 01:37:39,554 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2585 [2020-09-18 01:37:39,554 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-18 01:37:39,559 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-09-18 01:37:39,587 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-18 01:37:39,589 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-18 01:37:39,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-18 01:37:39,599 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:37:39,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:37:39,600 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:37:39,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:37:39,607 INFO L82 PathProgramCache]: Analyzing trace with hash -595431234, now seen corresponding path program 1 times [2020-09-18 01:37:39,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:37:39,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492301010] [2020-09-18 01:37:39,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:37:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:37:39,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:37:39,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492301010] [2020-09-18 01:37:39,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:37:39,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-18 01:37:39,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [566352782] [2020-09-18 01:37:39,927 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:37:39,931 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:37:39,946 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-18 01:37:39,946 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:37:39,948 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:37:39,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 01:37:39,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:37:39,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 01:37:39,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 01:37:39,970 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-18 01:37:40,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:37:40,014 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-09-18 01:37:40,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 01:37:40,017 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-18 01:37:40,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:37:40,035 INFO L225 Difference]: With dead ends: 282 [2020-09-18 01:37:40,035 INFO L226 Difference]: Without dead ends: 218 [2020-09-18 01:37:40,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 01:37:40,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-09-18 01:37:40,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-09-18 01:37:40,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-18 01:37:40,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-09-18 01:37:40,107 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-09-18 01:37:40,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:37:40,108 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-09-18 01:37:40,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 01:37:40,109 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-09-18 01:37:40,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-18 01:37:40,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:37:40,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:37:40,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 01:37:40,111 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:37:40,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:37:40,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1278499900, now seen corresponding path program 1 times [2020-09-18 01:37:40,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:37:40,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679451145] [2020-09-18 01:37:40,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:37:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:37:40,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:37:40,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679451145] [2020-09-18 01:37:40,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:37:40,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:37:40,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1350178546] [2020-09-18 01:37:40,216 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:37:40,217 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:37:40,225 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-09-18 01:37:40,226 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:37:40,254 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:37:40,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:37:40,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:37:40,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:37:40,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:37:40,260 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-09-18 01:37:40,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:37:40,297 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-09-18 01:37:40,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 01:37:40,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-18 01:37:40,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:37:40,305 INFO L225 Difference]: With dead ends: 242 [2020-09-18 01:37:40,305 INFO L226 Difference]: Without dead ends: 146 [2020-09-18 01:37:40,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:37:40,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-18 01:37:40,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-09-18 01:37:40,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-18 01:37:40,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-09-18 01:37:40,333 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-09-18 01:37:40,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:37:40,333 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-09-18 01:37:40,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:37:40,333 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-09-18 01:37:40,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-18 01:37:40,335 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:37:40,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:37:40,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 01:37:40,338 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:37:40,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:37:40,338 INFO L82 PathProgramCache]: Analyzing trace with hash -453706064, now seen corresponding path program 1 times [2020-09-18 01:37:40,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:37:40,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478252469] [2020-09-18 01:37:40,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:37:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:37:40,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:37:40,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478252469] [2020-09-18 01:37:40,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:37:40,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:37:40,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1708594416] [2020-09-18 01:37:40,545 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:37:40,547 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:37:40,549 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-09-18 01:37:40,549 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:37:40,578 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:37:40,606 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:37:40,629 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:37:40,644 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:37:40,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:37:40,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:37:40,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:37:40,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:37:40,645 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 4 states. [2020-09-18 01:37:40,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:37:40,675 INFO L93 Difference]: Finished difference Result 122 states and 292 transitions. [2020-09-18 01:37:40,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 01:37:40,675 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-18 01:37:40,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:37:40,676 INFO L225 Difference]: With dead ends: 122 [2020-09-18 01:37:40,676 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 01:37:40,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:37:40,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 01:37:40,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 01:37:40,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 01:37:40,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 01:37:40,678 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-09-18 01:37:40,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:37:40,678 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 01:37:40,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:37:40,678 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 01:37:40,678 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 01:37:40,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 01:37:40,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 01:37:40 BasicIcfg [2020-09-18 01:37:40,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 01:37:40,687 INFO L168 Benchmark]: Toolchain (without parser) took 4420.63 ms. Allocated memory was 140.5 MB in the beginning and 245.4 MB in the end (delta: 104.9 MB). Free memory was 102.2 MB in the beginning and 109.7 MB in the end (delta: -7.5 MB). Peak memory consumption was 97.4 MB. Max. memory is 7.1 GB. [2020-09-18 01:37:40,688 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-18 01:37:40,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.63 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 159.7 MB in the end (delta: -58.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-09-18 01:37:40,690 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.20 ms. Allocated memory is still 203.4 MB. Free memory was 159.7 MB in the beginning and 157.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-18 01:37:40,691 INFO L168 Benchmark]: Boogie Preprocessor took 30.85 ms. Allocated memory is still 203.4 MB. Free memory was 157.9 MB in the beginning and 156.9 MB in the end (delta: 939.7 kB). Peak memory consumption was 939.7 kB. Max. memory is 7.1 GB. [2020-09-18 01:37:40,692 INFO L168 Benchmark]: RCFGBuilder took 524.51 ms. Allocated memory is still 203.4 MB. Free memory was 156.0 MB in the beginning and 134.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-09-18 01:37:40,693 INFO L168 Benchmark]: TraceAbstraction took 3061.81 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 134.0 MB in the beginning and 109.7 MB in the end (delta: 24.3 MB). Peak memory consumption was 66.3 MB. Max. memory is 7.1 GB. [2020-09-18 01:37:40,697 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.63 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 159.7 MB in the end (delta: -58.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.20 ms. Allocated memory is still 203.4 MB. Free memory was 159.7 MB in the beginning and 157.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.85 ms. Allocated memory is still 203.4 MB. Free memory was 157.9 MB in the beginning and 156.9 MB in the end (delta: 939.7 kB). Peak memory consumption was 939.7 kB. Max. memory is 7.1 GB. * RCFGBuilder took 524.51 ms. Allocated memory is still 203.4 MB. Free memory was 156.0 MB in the beginning and 134.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3061.81 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 134.0 MB in the beginning and 109.7 MB in the end (delta: 24.3 MB). Peak memory consumption was 66.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 79 ProgramPointsBefore, 31 ProgramPointsAfterwards, 71 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 15 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 641 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2585 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 51 SDtfs, 48 SDslu, 56 SDs, 0 SdLazy, 26 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 639 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...