/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/safe007_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:36:17,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:36:17,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:36:17,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:36:17,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:36:17,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:36:17,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:36:17,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:36:17,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:36:17,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:36:17,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:36:17,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:36:17,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:36:17,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:36:17,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:36:17,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:36:17,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:36:17,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:36:17,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:36:17,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:36:17,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:36:17,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:36:17,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:36:17,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:36:17,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:36:17,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:36:17,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:36:17,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:36:17,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:36:17,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:36:17,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:36:17,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:36:17,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:36:17,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:36:17,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:36:17,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:36:17,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:36:17,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:36:17,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:36:17,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:36:17,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:36:17,950 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 [2020-10-16 13:36:17,972 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:36:17,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:36:17,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:36:17,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:36:17,974 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:36:17,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:36:17,974 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:36:17,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:36:17,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:36:17,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:36:17,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:36:17,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:36:17,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:36:17,975 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:36:17,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:36:17,976 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:36:17,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:36:17,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:36:17,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:36:17,977 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:36:17,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:36:17,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:36:17,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:36:17,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:36:17,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:36:17,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:36:17,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:36:17,978 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:36:17,979 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:36:17,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:36:17,979 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:36:18,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:36:18,263 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:36:18,266 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:36:18,268 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:36:18,268 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:36:18,269 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2020-10-16 13:36:18,321 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/988905cfb/e5af0465b7bf4e65ab1d43b68ad427a5/FLAG8f0bd9bbe [2020-10-16 13:36:18,846 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:36:18,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2020-10-16 13:36:18,867 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/988905cfb/e5af0465b7bf4e65ab1d43b68ad427a5/FLAG8f0bd9bbe [2020-10-16 13:36:19,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/988905cfb/e5af0465b7bf4e65ab1d43b68ad427a5 [2020-10-16 13:36:19,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:36:19,133 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:36:19,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:36:19,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:36:19,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:36:19,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:36:19" (1/1) ... [2020-10-16 13:36:19,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cfe23e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:19, skipping insertion in model container [2020-10-16 13:36:19,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:36:19" (1/1) ... [2020-10-16 13:36:19,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:36:19,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:36:19,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:36:19,664 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:36:19,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:36:19,782 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:36:19,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:19 WrapperNode [2020-10-16 13:36:19,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:36:19,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:36:19,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:36:19,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:36:19,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:19" (1/1) ... [2020-10-16 13:36:19,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:19" (1/1) ... [2020-10-16 13:36:19,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:36:19,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:36:19,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:36:19,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:36:19,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:19" (1/1) ... [2020-10-16 13:36:19,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:19" (1/1) ... [2020-10-16 13:36:19,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:19" (1/1) ... [2020-10-16 13:36:19,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:19" (1/1) ... [2020-10-16 13:36:19,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:19" (1/1) ... [2020-10-16 13:36:19,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:19" (1/1) ... [2020-10-16 13:36:19,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:19" (1/1) ... [2020-10-16 13:36:19,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:36:19,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:36:19,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:36:19,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:36:19,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:19" (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 [2020-10-16 13:36:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:36:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:36:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:36:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:36:19,916 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:36:19,916 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:36:19,916 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:36:19,916 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:36:19,916 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:36:19,917 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:36:19,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:36:19,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:36:19,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:36:19,923 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:36:20,259 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:36:20,260 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:36:20,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:36:20 BoogieIcfgContainer [2020-10-16 13:36:20,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:36:20,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:36:20,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:36:20,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:36:20,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:36:19" (1/3) ... [2020-10-16 13:36:20,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195551fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:36:20, skipping insertion in model container [2020-10-16 13:36:20,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:19" (2/3) ... [2020-10-16 13:36:20,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195551fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:36:20, skipping insertion in model container [2020-10-16 13:36:20,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:36:20" (3/3) ... [2020-10-16 13:36:20,271 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.oepc.i [2020-10-16 13:36:20,283 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:36:20,283 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:36:20,290 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:36:20,291 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:36:20,327 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,328 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,328 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,328 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,332 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,332 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,332 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,333 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,333 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,334 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,334 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,341 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,341 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,341 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,342 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,348 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,349 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,349 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,351 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,352 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,352 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,352 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,354 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:36:20,370 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:36:20,391 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:36:20,391 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:36:20,392 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:36:20,392 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:36:20,392 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:36:20,392 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:36:20,392 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:36:20,393 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:36:20,405 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:36:20,406 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-16 13:36:20,408 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-16 13:36:20,410 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-16 13:36:20,456 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-16 13:36:20,456 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:36:20,461 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 13:36:20,464 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 13:36:21,544 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-16 13:36:21,643 INFO L132 LiptonReduction]: Checked pairs total: 2579 [2020-10-16 13:36:21,643 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-16 13:36:21,650 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-16 13:36:21,694 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-16 13:36:21,696 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-16 13:36:21,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:36:21,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:36:21,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:36:21,717 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:36:21,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:36:21,730 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-10-16 13:36:21,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:36:21,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513336520] [2020-10-16 13:36:21,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:36:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:36:21,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:36:21,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513336520] [2020-10-16 13:36:21,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:36:21,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:36:21,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [791962760] [2020-10-16 13:36:21,914 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:36:21,917 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:36:21,931 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:36:21,931 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:36:21,935 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:36:21,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 13:36:21,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:36:21,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 13:36:21,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:36:21,952 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-16 13:36:21,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:36:21,974 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-16 13:36:21,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 13:36:21,975 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-16 13:36:21,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:36:21,991 INFO L225 Difference]: With dead ends: 362 [2020-10-16 13:36:21,991 INFO L226 Difference]: Without dead ends: 298 [2020-10-16 13:36:21,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:36:22,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-16 13:36:22,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-16 13:36:22,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-16 13:36:22,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-16 13:36:22,067 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-16 13:36:22,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:36:22,068 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-16 13:36:22,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 13:36:22,069 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-16 13:36:22,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:36:22,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:36:22,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:36:22,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:36:22,071 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:36:22,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:36:22,072 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-10-16 13:36:22,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:36:22,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425652363] [2020-10-16 13:36:22,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:36:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:36:22,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:36:22,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425652363] [2020-10-16 13:36:22,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:36:22,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:36:22,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [570721434] [2020-10-16 13:36:22,203 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:36:22,204 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:36:22,205 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-16 13:36:22,205 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:36:22,206 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:36:22,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:36:22,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:36:22,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:36:22,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:36:22,208 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-16 13:36:22,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:36:22,246 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-16 13:36:22,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:36:22,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 13:36:22,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:36:22,250 INFO L225 Difference]: With dead ends: 330 [2020-10-16 13:36:22,250 INFO L226 Difference]: Without dead ends: 266 [2020-10-16 13:36:22,251 INFO L677 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 [2020-10-16 13:36:22,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-16 13:36:22,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-16 13:36:22,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-16 13:36:22,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-16 13:36:22,274 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-16 13:36:22,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:36:22,274 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-16 13:36:22,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:36:22,274 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-16 13:36:22,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 13:36:22,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:36:22,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:36:22,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:36:22,277 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:36:22,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:36:22,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 1 times [2020-10-16 13:36:22,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:36:22,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695563552] [2020-10-16 13:36:22,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:36:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:36:22,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:36:22,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695563552] [2020-10-16 13:36:22,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:36:22,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:36:22,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1375089116] [2020-10-16 13:36:22,422 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:36:22,423 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:36:22,425 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions. [2020-10-16 13:36:22,425 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:36:22,431 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:36:22,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:36:22,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:36:22,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:36:22,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:36:22,433 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-10-16 13:36:22,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:36:22,491 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-10-16 13:36:22,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:36:22,492 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-16 13:36:22,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:36:22,494 INFO L225 Difference]: With dead ends: 290 [2020-10-16 13:36:22,495 INFO L226 Difference]: Without dead ends: 242 [2020-10-16 13:36:22,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:36:22,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-16 13:36:22,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-10-16 13:36:22,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-16 13:36:22,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-10-16 13:36:22,511 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-10-16 13:36:22,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:36:22,511 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-10-16 13:36:22,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:36:22,512 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-10-16 13:36:22,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:36:22,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:36:22,514 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:36:22,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:36:22,514 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:36:22,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:36:22,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 1 times [2020-10-16 13:36:22,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:36:22,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278765456] [2020-10-16 13:36:22,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:36:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:36:22,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:36:22,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278765456] [2020-10-16 13:36:22,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:36:22,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:36:22,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1870691484] [2020-10-16 13:36:22,599 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:36:22,600 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:36:22,602 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-10-16 13:36:22,602 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:36:22,658 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:36:22,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:36:22,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:36:22,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:36:22,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:36:22,660 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 4 states. [2020-10-16 13:36:22,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:36:22,680 INFO L93 Difference]: Finished difference Result 260 states and 694 transitions. [2020-10-16 13:36:22,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:36:22,680 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 13:36:22,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:36:22,682 INFO L225 Difference]: With dead ends: 260 [2020-10-16 13:36:22,682 INFO L226 Difference]: Without dead ends: 224 [2020-10-16 13:36:22,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:36:22,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-16 13:36:22,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2020-10-16 13:36:22,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-16 13:36:22,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 610 transitions. [2020-10-16 13:36:22,693 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 610 transitions. Word has length 11 [2020-10-16 13:36:22,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:36:22,694 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 610 transitions. [2020-10-16 13:36:22,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:36:22,694 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 610 transitions. [2020-10-16 13:36:22,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:36:22,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:36:22,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:36:22,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:36:22,696 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:36:22,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:36:22,697 INFO L82 PathProgramCache]: Analyzing trace with hash 368404844, now seen corresponding path program 1 times [2020-10-16 13:36:22,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:36:22,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022741931] [2020-10-16 13:36:22,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:36:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:36:22,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:36:22,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022741931] [2020-10-16 13:36:22,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:36:22,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:36:22,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2137513722] [2020-10-16 13:36:22,775 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:36:22,777 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:36:22,782 INFO L258 McrAutomatonBuilder]: Finished intersection with 32 states and 58 transitions. [2020-10-16 13:36:22,782 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:36:22,897 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:36:22,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:36:22,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:36:22,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:36:22,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:36:22,899 INFO L87 Difference]: Start difference. First operand 224 states and 610 transitions. Second operand 5 states. [2020-10-16 13:36:22,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:36:22,944 INFO L93 Difference]: Finished difference Result 293 states and 773 transitions. [2020-10-16 13:36:22,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:36:22,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 13:36:22,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:36:22,946 INFO L225 Difference]: With dead ends: 293 [2020-10-16 13:36:22,946 INFO L226 Difference]: Without dead ends: 146 [2020-10-16 13:36:22,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:36:22,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-16 13:36:22,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-16 13:36:22,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-16 13:36:22,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-10-16 13:36:22,952 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 12 [2020-10-16 13:36:22,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:36:22,953 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-10-16 13:36:22,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:36:22,953 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-10-16 13:36:22,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:36:22,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:36:22,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:36:22,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:36:22,954 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:36:22,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:36:22,955 INFO L82 PathProgramCache]: Analyzing trace with hash 257080554, now seen corresponding path program 1 times [2020-10-16 13:36:22,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:36:22,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880485] [2020-10-16 13:36:22,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:36:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:36:23,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:36:23,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880485] [2020-10-16 13:36:23,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:36:23,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:36:23,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1183797095] [2020-10-16 13:36:23,028 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:36:23,029 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:36:23,032 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 56 transitions. [2020-10-16 13:36:23,032 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:36:23,119 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:36:23,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:36:23,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:36:23,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:36:23,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:36:23,120 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-10-16 13:36:23,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:36:23,164 INFO L93 Difference]: Finished difference Result 188 states and 451 transitions. [2020-10-16 13:36:23,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:36:23,165 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 13:36:23,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:36:23,166 INFO L225 Difference]: With dead ends: 188 [2020-10-16 13:36:23,166 INFO L226 Difference]: Without dead ends: 74 [2020-10-16 13:36:23,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:36:23,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-16 13:36:23,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-16 13:36:23,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-16 13:36:23,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 164 transitions. [2020-10-16 13:36:23,170 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 164 transitions. Word has length 13 [2020-10-16 13:36:23,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:36:23,170 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 164 transitions. [2020-10-16 13:36:23,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:36:23,171 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 164 transitions. [2020-10-16 13:36:23,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 13:36:23,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:36:23,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:36:23,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:36:23,172 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:36:23,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:36:23,172 INFO L82 PathProgramCache]: Analyzing trace with hash -2118870046, now seen corresponding path program 1 times [2020-10-16 13:36:23,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:36:23,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899358413] [2020-10-16 13:36:23,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:36:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:36:23,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:36:23,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899358413] [2020-10-16 13:36:23,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:36:23,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:36:23,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [501678393] [2020-10-16 13:36:23,231 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:36:23,233 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:36:23,236 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-10-16 13:36:23,236 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:36:23,253 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:36:23,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:36:23,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:36:23,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:36:23,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:36:23,254 INFO L87 Difference]: Start difference. First operand 74 states and 164 transitions. Second operand 5 states. [2020-10-16 13:36:23,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:36:23,295 INFO L93 Difference]: Finished difference Result 62 states and 132 transitions. [2020-10-16 13:36:23,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:36:23,296 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 13:36:23,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:36:23,296 INFO L225 Difference]: With dead ends: 62 [2020-10-16 13:36:23,296 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:36:23,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:36:23,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:36:23,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:36:23,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:36:23,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:36:23,298 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-16 13:36:23,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:36:23,299 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:36:23,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:36:23,299 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:36:23,299 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:36:23,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:36:23,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:36:23 BasicIcfg [2020-10-16 13:36:23,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:36:23,309 INFO L168 Benchmark]: Toolchain (without parser) took 4174.20 ms. Allocated memory was 140.0 MB in the beginning and 246.9 MB in the end (delta: 107.0 MB). Free memory was 101.0 MB in the beginning and 167.1 MB in the end (delta: -66.1 MB). Peak memory consumption was 40.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:36:23,314 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 119.8 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-16 13:36:23,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.73 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 100.6 MB in the beginning and 159.0 MB in the end (delta: -58.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:36:23,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.25 ms. Allocated memory is still 202.4 MB. Free memory was 159.0 MB in the beginning and 157.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:36:23,319 INFO L168 Benchmark]: Boogie Preprocessor took 23.84 ms. Allocated memory is still 202.4 MB. Free memory was 157.0 MB in the beginning and 155.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:36:23,320 INFO L168 Benchmark]: RCFGBuilder took 409.66 ms. Allocated memory is still 202.4 MB. Free memory was 155.1 MB in the beginning and 133.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-10-16 13:36:23,322 INFO L168 Benchmark]: TraceAbstraction took 3041.52 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 132.4 MB in the beginning and 167.1 MB in the end (delta: -34.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:36:23,331 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 119.8 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 648.73 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 100.6 MB in the beginning and 159.0 MB in the end (delta: -58.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.25 ms. Allocated memory is still 202.4 MB. Free memory was 159.0 MB in the beginning and 157.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.84 ms. Allocated memory is still 202.4 MB. Free memory was 157.0 MB in the beginning and 155.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 409.66 ms. Allocated memory is still 202.4 MB. Free memory was 155.1 MB in the beginning and 133.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3041.52 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 132.4 MB in the beginning and 167.1 MB in the end (delta: -34.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 676 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 46 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 79 PlacesBefore, 32 PlacesAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2579 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 151 SDtfs, 152 SDslu, 227 SDs, 0 SdLazy, 66 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...