/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 03:48:56,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 03:48:56,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 03:48:56,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 03:48:56,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 03:48:56,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 03:48:56,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 03:48:56,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 03:48:56,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 03:48:56,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 03:48:56,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 03:48:56,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 03:48:56,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 03:48:56,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 03:48:56,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 03:48:56,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 03:48:56,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 03:48:56,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 03:48:56,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 03:48:56,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 03:48:56,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 03:48:56,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 03:48:56,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 03:48:56,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 03:48:56,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 03:48:56,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 03:48:56,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 03:48:56,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 03:48:56,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 03:48:56,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 03:48:56,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 03:48:56,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 03:48:56,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 03:48:56,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 03:48:56,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 03:48:56,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 03:48:56,784 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-27 03:48:56,813 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 03:48:56,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 03:48:56,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 03:48:56,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 03:48:56,815 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 03:48:56,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 03:48:56,816 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 03:48:56,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 03:48:56,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 03:48:56,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 03:48:56,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 03:48:56,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 03:48:56,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 03:48:56,817 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 03:48:56,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 03:48:56,818 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 03:48:56,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 03:48:56,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 03:48:56,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 03:48:56,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 03:48:56,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 03:48:56,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 03:48:56,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 03:48:56,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 03:48:56,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 03:48:56,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 03:48:56,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 03:48:56,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 03:48:56,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 03:48:57,096 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 03:48:57,113 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 03:48:57,115 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 03:48:57,116 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 03:48:57,117 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 03:48:57,117 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i [2019-12-27 03:48:57,191 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c723b02d/2e275efa7c0c4c4a80548233864c97f6/FLAG9fc710c49 [2019-12-27 03:48:57,730 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 03:48:57,732 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i [2019-12-27 03:48:57,752 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c723b02d/2e275efa7c0c4c4a80548233864c97f6/FLAG9fc710c49 [2019-12-27 03:48:58,014 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c723b02d/2e275efa7c0c4c4a80548233864c97f6 [2019-12-27 03:48:58,024 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 03:48:58,027 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 03:48:58,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 03:48:58,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 03:48:58,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 03:48:58,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:48:58" (1/1) ... [2019-12-27 03:48:58,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65149110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:48:58, skipping insertion in model container [2019-12-27 03:48:58,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:48:58" (1/1) ... [2019-12-27 03:48:58,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 03:48:58,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 03:48:58,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:48:58,572 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 03:48:58,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:48:58,703 INFO L208 MainTranslator]: Completed translation [2019-12-27 03:48:58,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:48:58 WrapperNode [2019-12-27 03:48:58,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 03:48:58,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 03:48:58,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 03:48:58,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 03:48:58,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:48:58" (1/1) ... [2019-12-27 03:48:58,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:48:58" (1/1) ... [2019-12-27 03:48:58,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 03:48:58,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 03:48:58,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 03:48:58,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 03:48:58,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:48:58" (1/1) ... [2019-12-27 03:48:58,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:48:58" (1/1) ... [2019-12-27 03:48:58,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:48:58" (1/1) ... [2019-12-27 03:48:58,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:48:58" (1/1) ... [2019-12-27 03:48:58,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:48:58" (1/1) ... [2019-12-27 03:48:58,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:48:58" (1/1) ... [2019-12-27 03:48:58,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:48:58" (1/1) ... [2019-12-27 03:48:58,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 03:48:58,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 03:48:58,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 03:48:58,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 03:48:58,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:48:58" (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 03:48:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 03:48:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 03:48:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 03:48:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 03:48:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 03:48:58,859 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 03:48:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 03:48:58,859 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 03:48:58,860 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 03:48:58,860 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 03:48:58,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 03:48:58,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 03:48:58,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 03:48:58,862 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 03:48:59,226 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 03:48:59,227 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 03:48:59,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:48:59 BoogieIcfgContainer [2019-12-27 03:48:59,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 03:48:59,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 03:48:59,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 03:48:59,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 03:48:59,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 03:48:58" (1/3) ... [2019-12-27 03:48:59,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384708db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:48:59, skipping insertion in model container [2019-12-27 03:48:59,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:48:58" (2/3) ... [2019-12-27 03:48:59,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384708db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:48:59, skipping insertion in model container [2019-12-27 03:48:59,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:48:59" (3/3) ... [2019-12-27 03:48:59,236 INFO L109 eAbstractionObserver]: Analyzing ICFG safe017_tso.oepc.i [2019-12-27 03:48:59,244 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 03:48:59,244 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 03:48:59,252 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 03:48:59,253 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 03:48:59,282 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,283 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,283 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,283 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,284 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,284 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,284 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,284 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,285 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,285 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,285 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,285 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,286 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,286 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,286 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,286 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,287 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,287 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,291 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,291 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,291 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,291 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,299 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,300 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,300 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,300 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,305 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,305 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,305 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,306 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:48:59,318 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 03:48:59,336 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 03:48:59,336 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 03:48:59,336 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 03:48:59,336 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 03:48:59,337 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 03:48:59,337 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 03:48:59,337 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 03:48:59,337 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 03:48:59,350 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 52 transitions [2019-12-27 03:48:59,352 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 61 places, 52 transitions [2019-12-27 03:48:59,400 INFO L132 PetriNetUnfolder]: 1/49 cut-off events. [2019-12-27 03:48:59,401 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:48:59,408 INFO L76 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/47 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 03:48:59,411 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 61 places, 52 transitions [2019-12-27 03:48:59,431 INFO L132 PetriNetUnfolder]: 1/49 cut-off events. [2019-12-27 03:48:59,431 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:48:59,433 INFO L76 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/47 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 03:48:59,436 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 03:48:59,437 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 03:49:00,964 INFO L206 etLargeBlockEncoding]: Checked pairs total: 495 [2019-12-27 03:49:00,966 INFO L214 etLargeBlockEncoding]: Total number of compositions: 42 [2019-12-27 03:49:00,970 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 03:49:00,986 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 03:49:00,988 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 03:49:00,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 03:49:00,997 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:49:00,998 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:49:00,998 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:49:01,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:49:01,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1253178052, now seen corresponding path program 1 times [2019-12-27 03:49:01,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:49:01,015 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065052855] [2019-12-27 03:49:01,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:49:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:49:01,279 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 03:49:01,280 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065052855] [2019-12-27 03:49:01,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:49:01,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:49:01,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384332040] [2019-12-27 03:49:01,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:49:01,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:49:01,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:49:01,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:49:01,304 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 03:49:01,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:49:01,331 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 03:49:01,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:49:01,333 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 03:49:01,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:49:01,363 INFO L225 Difference]: With dead ends: 42 [2019-12-27 03:49:01,363 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 03:49:01,368 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 03:49:01,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 03:49:01,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 03:49:01,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 03:49:01,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 03:49:01,418 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 03:49:01,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:49:01,420 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 03:49:01,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:49:01,420 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 03:49:01,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 03:49:01,422 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:49:01,423 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:49:01,423 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:49:01,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:49:01,423 INFO L82 PathProgramCache]: Analyzing trace with hash 193813457, now seen corresponding path program 1 times [2019-12-27 03:49:01,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:49:01,425 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097995522] [2019-12-27 03:49:01,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:49:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:49:01,515 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 03:49:01,515 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097995522] [2019-12-27 03:49:01,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:49:01,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:49:01,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077587874] [2019-12-27 03:49:01,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:49:01,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:49:01,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:49:01,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:49:01,519 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 03:49:01,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:49:01,541 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2019-12-27 03:49:01,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:49:01,542 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 03:49:01,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:49:01,543 INFO L225 Difference]: With dead ends: 39 [2019-12-27 03:49:01,543 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 03:49:01,544 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 03:49:01,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 03:49:01,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-27 03:49:01,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-27 03:49:01,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2019-12-27 03:49:01,549 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 9 [2019-12-27 03:49:01,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:49:01,550 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2019-12-27 03:49:01,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:49:01,550 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2019-12-27 03:49:01,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 03:49:01,551 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:49:01,551 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:49:01,551 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:49:01,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:49:01,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1741916971, now seen corresponding path program 1 times [2019-12-27 03:49:01,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:49:01,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917601506] [2019-12-27 03:49:01,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:49:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:49:01,601 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 03:49:01,601 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917601506] [2019-12-27 03:49:01,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:49:01,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:49:01,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133935976] [2019-12-27 03:49:01,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:49:01,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:49:01,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:49:01,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:49:01,603 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 3 states. [2019-12-27 03:49:01,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:49:01,612 INFO L93 Difference]: Finished difference Result 31 states and 51 transitions. [2019-12-27 03:49:01,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:49:01,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 03:49:01,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:49:01,613 INFO L225 Difference]: With dead ends: 31 [2019-12-27 03:49:01,614 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 03:49:01,614 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:49:01,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 03:49:01,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 03:49:01,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 03:49:01,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 03:49:01,617 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-27 03:49:01,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:49:01,617 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 03:49:01,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:49:01,618 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 03:49:01,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 03:49:01,618 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:49:01,618 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:49:01,619 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:49:01,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:49:01,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1835149176, now seen corresponding path program 1 times [2019-12-27 03:49:01,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:49:01,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279306853] [2019-12-27 03:49:01,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:49:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:49:01,674 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 03:49:01,675 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279306853] [2019-12-27 03:49:01,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:49:01,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:49:01,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47691873] [2019-12-27 03:49:01,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:49:01,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:49:01,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:49:01,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:49:01,677 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 3 states. [2019-12-27 03:49:01,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:49:01,692 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 03:49:01,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:49:01,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 03:49:01,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:49:01,693 INFO L225 Difference]: With dead ends: 16 [2019-12-27 03:49:01,693 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 03:49:01,695 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:49:01,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 03:49:01,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 03:49:01,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 03:49:01,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 03:49:01,696 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 03:49:01,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:49:01,696 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 03:49:01,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:49:01,697 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 03:49:01,697 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 03:49:01,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 03:49:01 BasicIcfg [2019-12-27 03:49:01,701 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 03:49:01,705 INFO L168 Benchmark]: Toolchain (without parser) took 3676.93 ms. Allocated memory was 138.9 MB in the beginning and 246.4 MB in the end (delta: 107.5 MB). Free memory was 102.3 MB in the beginning and 168.2 MB in the end (delta: -65.8 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB. [2019-12-27 03:49:01,707 INFO L168 Benchmark]: CDTParser took 0.18 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 03:49:01,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.80 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 161.3 MB in the end (delta: -59.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-12-27 03:49:01,711 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.60 ms. Allocated memory is still 202.9 MB. Free memory was 161.3 MB in the beginning and 158.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-27 03:49:01,717 INFO L168 Benchmark]: Boogie Preprocessor took 28.10 ms. Allocated memory is still 202.9 MB. Free memory was 158.6 MB in the beginning and 157.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 03:49:01,718 INFO L168 Benchmark]: RCFGBuilder took 439.14 ms. Allocated memory is still 202.9 MB. Free memory was 157.3 MB in the beginning and 137.2 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 03:49:01,719 INFO L168 Benchmark]: TraceAbstraction took 2471.84 ms. Allocated memory was 202.9 MB in the beginning and 246.4 MB in the end (delta: 43.5 MB). Free memory was 136.6 MB in the beginning and 168.2 MB in the end (delta: -31.6 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-12-27 03:49:01,727 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 676.80 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 161.3 MB in the end (delta: -59.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.60 ms. Allocated memory is still 202.9 MB. Free memory was 161.3 MB in the beginning and 158.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.10 ms. Allocated memory is still 202.9 MB. Free memory was 158.6 MB in the beginning and 157.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 439.14 ms. Allocated memory is still 202.9 MB. Free memory was 157.3 MB in the beginning and 137.2 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2471.84 ms. Allocated memory was 202.9 MB in the beginning and 246.4 MB in the end (delta: 43.5 MB). Free memory was 136.6 MB in the beginning and 168.2 MB in the end (delta: -31.6 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 61 ProgramPointsBefore, 21 ProgramPointsAfterwards, 52 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 238 VarBasedMoverChecksPositive, 16 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 17 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 495 CheckedPairsTotal, 42 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, 52 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 21 SDslu, 24 SDs, 0 SdLazy, 18 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 558 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...