/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-16 01:04:17,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-16 01:04:17,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-16 01:04:17,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-16 01:04:17,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-16 01:04:17,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-16 01:04:17,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-16 01:04:17,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-16 01:04:17,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-16 01:04:17,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-16 01:04:17,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-16 01:04:17,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-16 01:04:17,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-16 01:04:17,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-16 01:04:17,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-16 01:04:17,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-16 01:04:17,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-16 01:04:17,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-16 01:04:17,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-16 01:04:17,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-16 01:04:17,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-16 01:04:17,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-16 01:04:17,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-16 01:04:17,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-16 01:04:17,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-16 01:04:17,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-16 01:04:17,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-16 01:04:17,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-16 01:04:17,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-16 01:04:17,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-16 01:04:17,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-16 01:04:17,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-16 01:04:17,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-16 01:04:17,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-16 01:04:17,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-16 01:04:17,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-16 01:04:17,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-16 01:04:17,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-16 01:04:17,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-16 01:04:17,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-16 01:04:17,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-16 01:04:17,870 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-16 01:04:17,897 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-16 01:04:17,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-16 01:04:17,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-16 01:04:17,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-16 01:04:17,900 INFO L138 SettingsManager]: * Use SBE=true [2020-09-16 01:04:17,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-16 01:04:17,900 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-16 01:04:17,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-16 01:04:17,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-16 01:04:17,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-16 01:04:17,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-16 01:04:17,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-16 01:04:17,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-16 01:04:17,902 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-16 01:04:17,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-16 01:04:17,902 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-16 01:04:17,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-16 01:04:17,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-16 01:04:17,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-16 01:04:17,903 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-16 01:04:17,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-16 01:04:17,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 01:04:17,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-16 01:04:17,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-16 01:04:17,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-16 01:04:17,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-16 01:04:17,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-16 01:04:17,905 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-16 01:04:17,905 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-16 01:04:17,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-16 01:04:17,905 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-16 01:04:18,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-16 01:04:18,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-16 01:04:18,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-16 01:04:18,412 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-16 01:04:18,413 INFO L275 PluginConnector]: CDTParser initialized [2020-09-16 01:04:18,414 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2020-09-16 01:04:18,497 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/31d8edcb6/4c4c6868b5414972a7368b584b62a421/FLAG3148a7bcd [2020-09-16 01:04:19,202 INFO L306 CDTParser]: Found 1 translation units. [2020-09-16 01:04:19,203 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2020-09-16 01:04:19,220 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/31d8edcb6/4c4c6868b5414972a7368b584b62a421/FLAG3148a7bcd [2020-09-16 01:04:19,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/31d8edcb6/4c4c6868b5414972a7368b584b62a421 [2020-09-16 01:04:19,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-16 01:04:19,429 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-16 01:04:19,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-16 01:04:19,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-16 01:04:19,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-16 01:04:19,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 01:04:19" (1/1) ... [2020-09-16 01:04:19,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3365e94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:04:19, skipping insertion in model container [2020-09-16 01:04:19,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 01:04:19" (1/1) ... [2020-09-16 01:04:19,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-16 01:04:19,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-16 01:04:19,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 01:04:20,015 INFO L203 MainTranslator]: Completed pre-run [2020-09-16 01:04:20,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 01:04:20,180 INFO L208 MainTranslator]: Completed translation [2020-09-16 01:04:20,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:04:20 WrapperNode [2020-09-16 01:04:20,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-16 01:04:20,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-16 01:04:20,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-16 01:04:20,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-16 01:04:20,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:04:20" (1/1) ... [2020-09-16 01:04:20,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:04:20" (1/1) ... [2020-09-16 01:04:20,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-16 01:04:20,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-16 01:04:20,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-16 01:04:20,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-16 01:04:20,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:04:20" (1/1) ... [2020-09-16 01:04:20,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:04:20" (1/1) ... [2020-09-16 01:04:20,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:04:20" (1/1) ... [2020-09-16 01:04:20,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:04:20" (1/1) ... [2020-09-16 01:04:20,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:04:20" (1/1) ... [2020-09-16 01:04:20,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:04:20" (1/1) ... [2020-09-16 01:04:20,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:04:20" (1/1) ... [2020-09-16 01:04:20,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-16 01:04:20,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-16 01:04:20,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-16 01:04:20,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-16 01:04:20,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:04:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 01:04:20,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-16 01:04:20,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-16 01:04:20,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-16 01:04:20,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-16 01:04:20,374 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-16 01:04:20,374 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-16 01:04:20,375 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-16 01:04:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-16 01:04:20,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-16 01:04:20,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-16 01:04:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-16 01:04:20,378 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-16 01:04:20,701 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-16 01:04:20,703 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-16 01:04:20,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 01:04:20 BoogieIcfgContainer [2020-09-16 01:04:20,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-16 01:04:20,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-16 01:04:20,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-16 01:04:20,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-16 01:04:20,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 01:04:19" (1/3) ... [2020-09-16 01:04:20,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694d2fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 01:04:20, skipping insertion in model container [2020-09-16 01:04:20,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:04:20" (2/3) ... [2020-09-16 01:04:20,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694d2fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 01:04:20, skipping insertion in model container [2020-09-16 01:04:20,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 01:04:20" (3/3) ... [2020-09-16 01:04:20,723 INFO L109 eAbstractionObserver]: Analyzing ICFG safe033_tso.oepc.i [2020-09-16 01:04:20,739 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-16 01:04:20,740 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-16 01:04:20,751 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-16 01:04:20,753 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-16 01:04:20,785 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,785 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,785 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,786 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,786 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,786 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,788 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,788 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,789 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,793 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,794 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,794 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,794 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,802 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,803 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,803 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:04:20,834 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-16 01:04:20,861 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-16 01:04:20,861 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-16 01:04:20,862 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-16 01:04:20,862 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-16 01:04:20,862 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-16 01:04:20,862 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-16 01:04:20,862 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-16 01:04:20,862 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-16 01:04:20,880 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 55 transitions, 120 flow [2020-09-16 01:04:20,882 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-09-16 01:04:20,938 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-09-16 01:04:20,938 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 01:04:20,944 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-09-16 01:04:20,946 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-09-16 01:04:20,967 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-09-16 01:04:20,968 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 01:04:20,969 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-09-16 01:04:20,971 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-09-16 01:04:20,975 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-16 01:04:22,257 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1209 [2020-09-16 01:04:22,258 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2020-09-16 01:04:22,262 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-09-16 01:04:22,277 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-09-16 01:04:22,280 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-09-16 01:04:22,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-16 01:04:22,289 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:04:22,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-16 01:04:22,290 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:04:22,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:04:22,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1785955775, now seen corresponding path program 1 times [2020-09-16 01:04:22,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:04:22,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898245883] [2020-09-16 01:04:22,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:04:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:04:22,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:04:22,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898245883] [2020-09-16 01:04:22,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:04:22,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-16 01:04:22,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [730358059] [2020-09-16 01:04:22,568 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:04:22,573 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:04:22,587 INFO L274 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-09-16 01:04:22,588 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:04:22,590 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:04:22,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 01:04:22,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:04:22,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 01:04:22,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 01:04:22,609 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-09-16 01:04:22,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:04:22,656 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-09-16 01:04:22,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 01:04:22,659 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-09-16 01:04:22,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:04:22,676 INFO L225 Difference]: With dead ends: 72 [2020-09-16 01:04:22,677 INFO L226 Difference]: Without dead ends: 56 [2020-09-16 01:04:22,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 01:04:22,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-16 01:04:22,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-09-16 01:04:22,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-16 01:04:22,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-09-16 01:04:22,746 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-09-16 01:04:22,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:04:22,747 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-09-16 01:04:22,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 01:04:22,747 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-09-16 01:04:22,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-09-16 01:04:22,748 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:04:22,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:04:22,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-16 01:04:22,749 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:04:22,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:04:22,749 INFO L82 PathProgramCache]: Analyzing trace with hash -469946389, now seen corresponding path program 1 times [2020-09-16 01:04:22,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:04:22,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685327667] [2020-09-16 01:04:22,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:04:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:04:22,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:04:22,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685327667] [2020-09-16 01:04:22,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:04:22,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 01:04:22,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [759112616] [2020-09-16 01:04:22,881 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:04:22,884 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:04:22,889 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 13 transitions. [2020-09-16 01:04:22,889 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:04:22,965 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 01:04:22,999 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [402#(not (= 2 ~__unbuffered_cnt~0))] [2020-09-16 01:04:23,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:04:23,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:04:23,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:04:23,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:04:23,002 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 5 states. [2020-09-16 01:04:23,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:04:23,066 INFO L93 Difference]: Finished difference Result 44 states and 81 transitions. [2020-09-16 01:04:23,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-16 01:04:23,067 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-09-16 01:04:23,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:04:23,068 INFO L225 Difference]: With dead ends: 44 [2020-09-16 01:04:23,068 INFO L226 Difference]: Without dead ends: 28 [2020-09-16 01:04:23,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-16 01:04:23,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-16 01:04:23,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-16 01:04:23,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-16 01:04:23,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-09-16 01:04:23,074 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 7 [2020-09-16 01:04:23,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:04:23,074 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-09-16 01:04:23,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:04:23,075 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-09-16 01:04:23,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-16 01:04:23,075 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:04:23,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:04:23,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-16 01:04:23,076 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:04:23,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:04:23,077 INFO L82 PathProgramCache]: Analyzing trace with hash 967414389, now seen corresponding path program 1 times [2020-09-16 01:04:23,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:04:23,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669776179] [2020-09-16 01:04:23,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:04:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:04:23,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:04:23,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669776179] [2020-09-16 01:04:23,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:04:23,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 01:04:23,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1878618413] [2020-09-16 01:04:23,185 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:04:23,186 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:04:23,190 INFO L274 McrAutomatonBuilder]: Finished intersection with 17 states and 20 transitions. [2020-09-16 01:04:23,191 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:04:23,193 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:04:23,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 01:04:23,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:04:23,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 01:04:23,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 01:04:23,194 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 3 states. [2020-09-16 01:04:23,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:04:23,206 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2020-09-16 01:04:23,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 01:04:23,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-16 01:04:23,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:04:23,207 INFO L225 Difference]: With dead ends: 35 [2020-09-16 01:04:23,207 INFO L226 Difference]: Without dead ends: 16 [2020-09-16 01:04:23,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 01:04:23,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-09-16 01:04:23,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-09-16 01:04:23,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-09-16 01:04:23,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-09-16 01:04:23,210 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2020-09-16 01:04:23,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:04:23,211 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-09-16 01:04:23,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 01:04:23,211 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-09-16 01:04:23,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-16 01:04:23,212 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:04:23,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:04:23,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-16 01:04:23,212 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:04:23,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:04:23,213 INFO L82 PathProgramCache]: Analyzing trace with hash -129480839, now seen corresponding path program 2 times [2020-09-16 01:04:23,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:04:23,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539484610] [2020-09-16 01:04:23,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:04:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:04:23,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:04:23,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539484610] [2020-09-16 01:04:23,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:04:23,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 01:04:23,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [810935580] [2020-09-16 01:04:23,276 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:04:23,277 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:04:23,279 INFO L274 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-09-16 01:04:23,279 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:04:23,286 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:04:23,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 01:04:23,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:04:23,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 01:04:23,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 01:04:23,288 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2020-09-16 01:04:23,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:04:23,299 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-09-16 01:04:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-16 01:04:23,300 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-16 01:04:23,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:04:23,300 INFO L225 Difference]: With dead ends: 15 [2020-09-16 01:04:23,300 INFO L226 Difference]: Without dead ends: 0 [2020-09-16 01:04:23,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:04:23,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-16 01:04:23,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-16 01:04:23,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-16 01:04:23,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-16 01:04:23,302 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-09-16 01:04:23,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:04:23,302 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-16 01:04:23,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 01:04:23,303 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-16 01:04:23,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-16 01:04:23,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-16 01:04:23,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 01:04:23 BasicIcfg [2020-09-16 01:04:23,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-16 01:04:23,313 INFO L168 Benchmark]: Toolchain (without parser) took 3887.34 ms. Allocated memory was 138.4 MB in the beginning and 250.6 MB in the end (delta: 112.2 MB). Free memory was 99.9 MB in the beginning and 176.8 MB in the end (delta: -76.9 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. [2020-09-16 01:04:23,314 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-16 01:04:23,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.74 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 98.8 MB in the beginning and 160.4 MB in the end (delta: -61.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-09-16 01:04:23,316 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.63 ms. Allocated memory is still 202.4 MB. Free memory was 160.4 MB in the beginning and 158.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-16 01:04:23,317 INFO L168 Benchmark]: Boogie Preprocessor took 31.81 ms. Allocated memory is still 202.4 MB. Free memory was 158.3 MB in the beginning and 156.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-16 01:04:23,318 INFO L168 Benchmark]: RCFGBuilder took 432.35 ms. Allocated memory is still 202.4 MB. Free memory was 156.9 MB in the beginning and 136.7 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-09-16 01:04:23,319 INFO L168 Benchmark]: TraceAbstraction took 2596.79 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 136.7 MB in the beginning and 176.8 MB in the end (delta: -40.1 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. [2020-09-16 01:04:23,323 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.74 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 98.8 MB in the beginning and 160.4 MB in the end (delta: -61.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.63 ms. Allocated memory is still 202.4 MB. Free memory was 160.4 MB in the beginning and 158.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.81 ms. Allocated memory is still 202.4 MB. Free memory was 158.3 MB in the beginning and 156.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.35 ms. Allocated memory is still 202.4 MB. Free memory was 156.9 MB in the beginning and 136.7 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2596.79 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 136.7 MB in the beginning and 176.8 MB in the end (delta: -40.1 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 60 ProgramPointsBefore, 22 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 364 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1209 CheckedPairsTotal, 47 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 51 SDtfs, 23 SDslu, 45 SDs, 0 SdLazy, 31 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 0.3s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 667 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...