/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:52:01,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:52:01,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:52:01,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:52:01,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:52:01,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:52:01,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:52:01,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:52:01,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:52:01,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:52:01,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:52:01,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:52:01,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:52:01,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:52:01,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:52:01,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:52:01,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:52:01,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:52:01,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:52:01,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:52:01,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:52:01,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:52:01,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:52:01,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:52:01,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 22:52:01,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:52:01,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:52:01,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:52:01,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:52:01,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:52:01,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:52:01,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:52:01,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:52:01,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:52:01,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:52:01,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:52:01,193 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-MCR.epf [2019-12-27 22:52:01,207 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:52:01,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:52:01,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:52:01,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:52:01,209 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:52:01,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:52:01,210 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:52:01,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:52:01,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:52:01,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:52:01,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:52:01,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:52:01,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:52:01,211 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:52:01,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:52:01,212 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:52:01,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:52:01,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:52:01,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:52:01,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:52:01,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:52:01,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:52:01,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:52:01,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:52:01,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:52:01,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:52:01,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:52:01,214 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:52:01,214 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:52:01,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:52:01,215 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:52:01,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:52:01,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:52:01,488 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:52:01,494 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:52:01,496 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:52:01,497 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:52:01,498 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2019-12-27 22:52:01,568 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/980432bff/458d4dc033904c1086d8f65524002c21/FLAG9edf9c62f [2019-12-27 22:52:02,108 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:52:02,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2019-12-27 22:52:02,131 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/980432bff/458d4dc033904c1086d8f65524002c21/FLAG9edf9c62f [2019-12-27 22:52:02,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/980432bff/458d4dc033904c1086d8f65524002c21 [2019-12-27 22:52:02,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:52:02,423 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:52:02,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:52:02,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:52:02,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:52:02,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:52:02" (1/1) ... [2019-12-27 22:52:02,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1191ab3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:52:02, skipping insertion in model container [2019-12-27 22:52:02,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:52:02" (1/1) ... [2019-12-27 22:52:02,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:52:02,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:52:02,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:52:02,918 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:52:02,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:52:03,059 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:52:03,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:52:03 WrapperNode [2019-12-27 22:52:03,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:52:03,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:52:03,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:52:03,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:52:03,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:52:03" (1/1) ... [2019-12-27 22:52:03,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:52:03" (1/1) ... [2019-12-27 22:52:03,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:52:03,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:52:03,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:52:03,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:52:03,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:52:03" (1/1) ... [2019-12-27 22:52:03,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:52:03" (1/1) ... [2019-12-27 22:52:03,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:52:03" (1/1) ... [2019-12-27 22:52:03,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:52:03" (1/1) ... [2019-12-27 22:52:03,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:52:03" (1/1) ... [2019-12-27 22:52:03,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:52:03" (1/1) ... [2019-12-27 22:52:03,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:52:03" (1/1) ... [2019-12-27 22:52:03,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:52:03,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:52:03,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:52:03,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:52:03,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:52:03" (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 22:52:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:52:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:52:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:52:03,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:52:03,212 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:52:03,212 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:52:03,212 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:52:03,212 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:52:03,213 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:52:03,213 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:52:03,213 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-27 22:52:03,213 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-27 22:52:03,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:52:03,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:52:03,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:52:03,215 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 22:52:03,687 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:52:03,687 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:52:03,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:52:03 BoogieIcfgContainer [2019-12-27 22:52:03,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:52:03,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:52:03,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:52:03,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:52:03,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:52:02" (1/3) ... [2019-12-27 22:52:03,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61979f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:52:03, skipping insertion in model container [2019-12-27 22:52:03,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:52:03" (2/3) ... [2019-12-27 22:52:03,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61979f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:52:03, skipping insertion in model container [2019-12-27 22:52:03,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:52:03" (3/3) ... [2019-12-27 22:52:03,702 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2019-12-27 22:52:03,714 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:52:03,714 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:52:03,731 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:52:03,732 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:52:03,763 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,763 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,764 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,767 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,768 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,768 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,768 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,769 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,769 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,769 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,769 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,770 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,770 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,770 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,771 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,771 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,771 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,772 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,772 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,772 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,773 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,773 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,773 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,774 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,778 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,778 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,779 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,779 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,788 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,788 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,788 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,789 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,794 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,795 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,795 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,795 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,802 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,802 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,802 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,802 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:52:03,819 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 22:52:03,837 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:52:03,837 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:52:03,837 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:52:03,837 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:52:03,838 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:52:03,838 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:52:03,838 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:52:03,838 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:52:03,852 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 65 transitions [2019-12-27 22:52:03,854 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 77 places, 65 transitions [2019-12-27 22:52:03,901 INFO L132 PetriNetUnfolder]: 1/61 cut-off events. [2019-12-27 22:52:03,901 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:52:03,910 INFO L76 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 28 event pairs. 0/59 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-12-27 22:52:03,914 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 77 places, 65 transitions [2019-12-27 22:52:03,939 INFO L132 PetriNetUnfolder]: 1/61 cut-off events. [2019-12-27 22:52:03,939 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:52:03,941 INFO L76 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 28 event pairs. 0/59 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-12-27 22:52:03,946 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 732 [2019-12-27 22:52:03,947 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:52:05,409 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-27 22:52:05,572 INFO L206 etLargeBlockEncoding]: Checked pairs total: 687 [2019-12-27 22:52:05,572 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2019-12-27 22:52:05,576 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 21 transitions [2019-12-27 22:52:05,591 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 110 states. [2019-12-27 22:52:05,593 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states. [2019-12-27 22:52:05,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:52:05,601 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:52:05,602 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:52:05,602 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:52:05,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:52:05,608 INFO L82 PathProgramCache]: Analyzing trace with hash -162708018, now seen corresponding path program 1 times [2019-12-27 22:52:05,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:52:05,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164206635] [2019-12-27 22:52:05,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:52:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:52:05,906 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 22:52:05,907 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164206635] [2019-12-27 22:52:05,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:52:05,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:52:05,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [87322906] [2019-12-27 22:52:05,914 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:52:05,922 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:52:05,952 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 22:52:05,953 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:52:05,959 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:52:05,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:52:05,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:52:05,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:52:05,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:52:05,985 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 3 states. [2019-12-27 22:52:06,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:52:06,022 INFO L93 Difference]: Finished difference Result 102 states and 260 transitions. [2019-12-27 22:52:06,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:52:06,025 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 22:52:06,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:52:06,057 INFO L225 Difference]: With dead ends: 102 [2019-12-27 22:52:06,058 INFO L226 Difference]: Without dead ends: 70 [2019-12-27 22:52:06,059 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 22:52:06,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-12-27 22:52:06,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-12-27 22:52:06,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-12-27 22:52:06,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 164 transitions. [2019-12-27 22:52:06,132 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 164 transitions. Word has length 10 [2019-12-27 22:52:06,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:52:06,135 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 164 transitions. [2019-12-27 22:52:06,135 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:52:06,136 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 164 transitions. [2019-12-27 22:52:06,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:52:06,138 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:52:06,138 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:52:06,139 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:52:06,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:52:06,139 INFO L82 PathProgramCache]: Analyzing trace with hash -740821623, now seen corresponding path program 1 times [2019-12-27 22:52:06,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:52:06,140 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99956825] [2019-12-27 22:52:06,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:52:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:52:06,284 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 22:52:06,284 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99956825] [2019-12-27 22:52:06,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:52:06,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:52:06,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1658845596] [2019-12-27 22:52:06,285 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:52:06,287 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:52:06,293 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 22:52:06,293 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:52:06,295 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:52:06,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:52:06,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:52:06,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:52:06,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:52:06,298 INFO L87 Difference]: Start difference. First operand 70 states and 164 transitions. Second operand 4 states. [2019-12-27 22:52:06,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:52:06,335 INFO L93 Difference]: Finished difference Result 78 states and 170 transitions. [2019-12-27 22:52:06,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:52:06,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:52:06,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:52:06,339 INFO L225 Difference]: With dead ends: 78 [2019-12-27 22:52:06,339 INFO L226 Difference]: Without dead ends: 54 [2019-12-27 22:52:06,340 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 22:52:06,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-12-27 22:52:06,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2019-12-27 22:52:06,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-12-27 22:52:06,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 110 transitions. [2019-12-27 22:52:06,347 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 110 transitions. Word has length 11 [2019-12-27 22:52:06,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:52:06,348 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 110 transitions. [2019-12-27 22:52:06,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:52:06,348 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 110 transitions. [2019-12-27 22:52:06,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 22:52:06,349 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:52:06,349 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:52:06,349 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:52:06,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:52:06,350 INFO L82 PathProgramCache]: Analyzing trace with hash -519872831, now seen corresponding path program 1 times [2019-12-27 22:52:06,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:52:06,350 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312418710] [2019-12-27 22:52:06,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:52:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:52:06,391 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 22:52:06,391 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312418710] [2019-12-27 22:52:06,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:52:06,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:52:06,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2117192406] [2019-12-27 22:52:06,392 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:52:06,394 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:52:06,396 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 19 states and 24 transitions. [2019-12-27 22:52:06,396 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:52:06,397 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:52:06,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:52:06,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:52:06,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:52:06,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:52:06,398 INFO L87 Difference]: Start difference. First operand 54 states and 110 transitions. Second operand 3 states. [2019-12-27 22:52:06,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:52:06,404 INFO L93 Difference]: Finished difference Result 52 states and 105 transitions. [2019-12-27 22:52:06,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:52:06,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-27 22:52:06,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:52:06,406 INFO L225 Difference]: With dead ends: 52 [2019-12-27 22:52:06,406 INFO L226 Difference]: Without dead ends: 52 [2019-12-27 22:52:06,406 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 22:52:06,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-12-27 22:52:06,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-12-27 22:52:06,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-12-27 22:52:06,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 105 transitions. [2019-12-27 22:52:06,413 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 105 transitions. Word has length 12 [2019-12-27 22:52:06,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:52:06,413 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 105 transitions. [2019-12-27 22:52:06,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:52:06,414 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 105 transitions. [2019-12-27 22:52:06,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-27 22:52:06,415 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:52:06,415 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:52:06,415 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:52:06,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:52:06,415 INFO L82 PathProgramCache]: Analyzing trace with hash -349293673, now seen corresponding path program 1 times [2019-12-27 22:52:06,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:52:06,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133649840] [2019-12-27 22:52:06,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:52:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:52:06,457 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 22:52:06,458 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133649840] [2019-12-27 22:52:06,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:52:06,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:52:06,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [51909121] [2019-12-27 22:52:06,459 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:52:06,461 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:52:06,464 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 26 states and 37 transitions. [2019-12-27 22:52:06,465 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:52:06,507 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 22:52:06,507 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 22:52:06,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:52:06,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 22:52:06,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:52:06,508 INFO L87 Difference]: Start difference. First operand 52 states and 105 transitions. Second operand 5 states. [2019-12-27 22:52:06,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:52:06,542 INFO L93 Difference]: Finished difference Result 57 states and 110 transitions. [2019-12-27 22:52:06,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:52:06,543 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-12-27 22:52:06,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:52:06,544 INFO L225 Difference]: With dead ends: 57 [2019-12-27 22:52:06,544 INFO L226 Difference]: Without dead ends: 33 [2019-12-27 22:52:06,544 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 22:52:06,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-27 22:52:06,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-27 22:52:06,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-27 22:52:06,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 54 transitions. [2019-12-27 22:52:06,549 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 54 transitions. Word has length 13 [2019-12-27 22:52:06,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:52:06,549 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 54 transitions. [2019-12-27 22:52:06,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 22:52:06,549 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 54 transitions. [2019-12-27 22:52:06,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 22:52:06,550 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:52:06,550 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:52:06,550 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:52:06,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:52:06,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1381593674, now seen corresponding path program 1 times [2019-12-27 22:52:06,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:52:06,551 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875250814] [2019-12-27 22:52:06,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:52:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:52:06,590 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 22:52:06,590 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875250814] [2019-12-27 22:52:06,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:52:06,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:52:06,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1389306212] [2019-12-27 22:52:06,591 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:52:06,593 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:52:06,596 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 21 states and 26 transitions. [2019-12-27 22:52:06,597 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:52:06,597 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:52:06,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:52:06,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:52:06,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:52:06,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:52:06,598 INFO L87 Difference]: Start difference. First operand 33 states and 54 transitions. Second operand 4 states. [2019-12-27 22:52:06,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:52:06,620 INFO L93 Difference]: Finished difference Result 37 states and 58 transitions. [2019-12-27 22:52:06,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:52:06,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-12-27 22:52:06,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:52:06,621 INFO L225 Difference]: With dead ends: 37 [2019-12-27 22:52:06,621 INFO L226 Difference]: Without dead ends: 19 [2019-12-27 22:52:06,622 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:52:06,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-27 22:52:06,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-27 22:52:06,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-27 22:52:06,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-12-27 22:52:06,624 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 14 [2019-12-27 22:52:06,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:52:06,625 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-12-27 22:52:06,625 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:52:06,625 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-12-27 22:52:06,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 22:52:06,626 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:52:06,626 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:52:06,626 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:52:06,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:52:06,626 INFO L82 PathProgramCache]: Analyzing trace with hash -554728090, now seen corresponding path program 2 times [2019-12-27 22:52:06,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:52:06,627 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265694416] [2019-12-27 22:52:06,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:52:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:52:06,684 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 22:52:06,684 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265694416] [2019-12-27 22:52:06,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:52:06,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:52:06,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [412119742] [2019-12-27 22:52:06,685 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:52:06,687 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:52:06,690 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 14 transitions. [2019-12-27 22:52:06,690 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:52:06,691 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:52:06,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:52:06,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:52:06,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:52:06,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:52:06,692 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 4 states. [2019-12-27 22:52:06,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:52:06,718 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2019-12-27 22:52:06,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:52:06,719 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-12-27 22:52:06,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:52:06,719 INFO L225 Difference]: With dead ends: 18 [2019-12-27 22:52:06,719 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:52:06,720 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 22:52:06,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:52:06,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:52:06,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:52:06,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:52:06,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-12-27 22:52:06,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:52:06,721 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:52:06,722 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:52:06,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:52:06,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:52:06,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:52:06 BasicIcfg [2019-12-27 22:52:06,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:52:06,732 INFO L168 Benchmark]: Toolchain (without parser) took 4307.61 ms. Allocated memory was 138.9 MB in the beginning and 246.9 MB in the end (delta: 108.0 MB). Free memory was 102.4 MB in the beginning and 97.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 112.6 MB. Max. memory is 7.1 GB. [2019-12-27 22:52:06,733 INFO L168 Benchmark]: CDTParser took 0.49 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 22:52:06,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 636.33 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 101.9 MB in the beginning and 160.0 MB in the end (delta: -58.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-12-27 22:52:06,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.32 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 158.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 22:52:06,741 INFO L168 Benchmark]: Boogie Preprocessor took 29.45 ms. Allocated memory is still 203.4 MB. Free memory was 158.0 MB in the beginning and 156.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:52:06,742 INFO L168 Benchmark]: RCFGBuilder took 545.71 ms. Allocated memory is still 203.4 MB. Free memory was 156.7 MB in the beginning and 134.3 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-12-27 22:52:06,743 INFO L168 Benchmark]: TraceAbstraction took 3036.06 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 133.6 MB in the beginning and 97.8 MB in the end (delta: 35.8 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. [2019-12-27 22:52:06,753 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 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 636.33 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 101.9 MB in the beginning and 160.0 MB in the end (delta: -58.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.32 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 158.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.45 ms. Allocated memory is still 203.4 MB. Free memory was 158.0 MB in the beginning and 156.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 545.71 ms. Allocated memory is still 203.4 MB. Free memory was 156.7 MB in the beginning and 134.3 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3036.06 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 133.6 MB in the beginning and 97.8 MB in the end (delta: 35.8 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 77 ProgramPointsBefore, 28 ProgramPointsAfterwards, 65 TransitionsBefore, 21 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 0 ChoiceCompositions, 361 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 687 CheckedPairsTotal, 54 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 5 procedures, 65 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 86 SDtfs, 45 SDslu, 82 SDs, 0 SdLazy, 36 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 2014 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...