/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/safe004_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 22:55:30,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 22:55:30,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 22:55:30,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 22:55:30,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 22:55:30,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 22:55:30,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 22:55:30,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 22:55:30,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 22:55:30,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 22:55:30,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 22:55:30,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 22:55:30,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 22:55:30,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 22:55:30,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 22:55:30,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 22:55:30,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 22:55:30,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 22:55:30,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 22:55:30,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 22:55:30,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 22:55:30,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 22:55:30,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 22:55:30,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 22:55:30,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-15 22:55:30,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 22:55:30,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 22:55:30,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 22:55:30,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 22:55:30,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 22:55:30,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 22:55:30,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 22:55:30,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 22:55:30,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 22:55:30,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 22:55:30,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 22:55:31,000 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 [2020-09-15 22:55:31,025 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 22:55:31,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 22:55:31,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 22:55:31,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 22:55:31,028 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 22:55:31,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 22:55:31,028 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 22:55:31,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 22:55:31,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 22:55:31,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 22:55:31,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 22:55:31,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 22:55:31,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 22:55:31,029 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 22:55:31,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 22:55:31,030 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 22:55:31,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 22:55:31,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 22:55:31,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 22:55:31,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 22:55:31,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 22:55:31,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 22:55:31,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 22:55:31,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-15 22:55:31,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 22:55:31,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 22:55:31,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 22:55:31,032 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-15 22:55:31,032 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-15 22:55:31,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 22:55:31,033 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-15 22:55:31,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 22:55:31,536 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 22:55:31,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 22:55:31,543 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 22:55:31,543 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 22:55:31,544 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-09-15 22:55:31,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/283ad3d6c/cd41d369c6d24f17bf620766001ab63d/FLAG999b8da38 [2020-09-15 22:55:32,240 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 22:55:32,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-09-15 22:55:32,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/283ad3d6c/cd41d369c6d24f17bf620766001ab63d/FLAG999b8da38 [2020-09-15 22:55:32,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/283ad3d6c/cd41d369c6d24f17bf620766001ab63d [2020-09-15 22:55:32,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 22:55:32,513 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 22:55:32,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 22:55:32,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 22:55:32,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 22:55:32,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:55:32" (1/1) ... [2020-09-15 22:55:32,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@148d86a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:55:32, skipping insertion in model container [2020-09-15 22:55:32,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:55:32" (1/1) ... [2020-09-15 22:55:32,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 22:55:32,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 22:55:33,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 22:55:33,098 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 22:55:33,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 22:55:33,301 INFO L208 MainTranslator]: Completed translation [2020-09-15 22:55:33,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:55:33 WrapperNode [2020-09-15 22:55:33,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 22:55:33,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 22:55:33,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 22:55:33,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 22:55:33,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:55:33" (1/1) ... [2020-09-15 22:55:33,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:55:33" (1/1) ... [2020-09-15 22:55:33,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 22:55:33,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 22:55:33,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 22:55:33,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 22:55:33,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:55:33" (1/1) ... [2020-09-15 22:55:33,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:55:33" (1/1) ... [2020-09-15 22:55:33,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:55:33" (1/1) ... [2020-09-15 22:55:33,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:55:33" (1/1) ... [2020-09-15 22:55:33,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:55:33" (1/1) ... [2020-09-15 22:55:33,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:55:33" (1/1) ... [2020-09-15 22:55:33,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:55:33" (1/1) ... [2020-09-15 22:55:33,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 22:55:33,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 22:55:33,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 22:55:33,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 22:55:33,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:55:33" (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 [2020-09-15 22:55:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 22:55:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-15 22:55:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 22:55:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 22:55:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-15 22:55:33,477 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-15 22:55:33,478 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-15 22:55:33,478 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-15 22:55:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-15 22:55:33,479 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-15 22:55:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-15 22:55:33,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 22:55:33,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 22:55:33,483 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 22:55:33,873 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 22:55:33,874 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-15 22:55:33,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:55:33 BoogieIcfgContainer [2020-09-15 22:55:33,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 22:55:33,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 22:55:33,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 22:55:33,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 22:55:33,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 10:55:32" (1/3) ... [2020-09-15 22:55:33,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be8a715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:55:33, skipping insertion in model container [2020-09-15 22:55:33,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:55:33" (2/3) ... [2020-09-15 22:55:33,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be8a715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:55:33, skipping insertion in model container [2020-09-15 22:55:33,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:55:33" (3/3) ... [2020-09-15 22:55:33,890 INFO L109 eAbstractionObserver]: Analyzing ICFG safe004_tso.oepc.i [2020-09-15 22:55:33,901 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 22:55:33,901 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-15 22:55:33,912 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-15 22:55:33,913 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 22:55:33,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,945 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,945 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,945 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,946 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,947 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,947 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,948 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,948 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,948 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,949 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,949 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,949 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,950 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,954 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,955 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,955 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,955 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,965 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,965 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,965 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,966 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,968 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,968 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,969 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,969 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:55:33,993 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-15 22:55:34,021 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 22:55:34,021 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 22:55:34,021 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 22:55:34,021 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-15 22:55:34,021 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 22:55:34,022 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 22:55:34,022 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 22:55:34,022 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 22:55:34,040 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-09-15 22:55:34,043 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-15 22:55:34,098 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-15 22:55:34,098 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 22:55:34,106 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 22:55:34,111 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-15 22:55:34,144 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-15 22:55:34,144 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 22:55:34,145 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 22:55:34,147 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-15 22:55:34,148 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 22:55:35,707 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2483 [2020-09-15 22:55:35,707 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-15 22:55:35,712 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-15 22:55:35,741 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-15 22:55:35,744 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-15 22:55:35,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-15 22:55:35,754 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:55:35,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:55:35,755 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:55:35,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:55:35,762 INFO L82 PathProgramCache]: Analyzing trace with hash -245765301, now seen corresponding path program 1 times [2020-09-15 22:55:35,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:55:35,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37047865] [2020-09-15 22:55:35,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:55:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:55:36,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:55:36,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37047865] [2020-09-15 22:55:36,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:55:36,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 22:55:36,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [368782269] [2020-09-15 22:55:36,048 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:55:36,051 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:55:36,066 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-15 22:55:36,066 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:55:36,069 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:55:36,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 22:55:36,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:55:36,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 22:55:36,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:55:36,091 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-15 22:55:36,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:55:36,132 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-09-15 22:55:36,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 22:55:36,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-15 22:55:36,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:55:36,153 INFO L225 Difference]: With dead ends: 290 [2020-09-15 22:55:36,153 INFO L226 Difference]: Without dead ends: 226 [2020-09-15 22:55:36,155 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 [2020-09-15 22:55:36,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-15 22:55:36,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-09-15 22:55:36,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-15 22:55:36,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-09-15 22:55:36,237 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-09-15 22:55:36,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:55:36,238 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-09-15 22:55:36,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 22:55:36,238 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-09-15 22:55:36,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-15 22:55:36,243 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:55:36,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:55:36,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 22:55:36,244 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:55:36,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:55:36,244 INFO L82 PathProgramCache]: Analyzing trace with hash 956609449, now seen corresponding path program 1 times [2020-09-15 22:55:36,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:55:36,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076204815] [2020-09-15 22:55:36,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:55:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:55:36,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:55:36,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076204815] [2020-09-15 22:55:36,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:55:36,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 22:55:36,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [668154591] [2020-09-15 22:55:36,398 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:55:36,399 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:55:36,405 INFO L274 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-09-15 22:55:36,405 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:55:36,436 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:55:36,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 22:55:36,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:55:36,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 22:55:36,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:55:36,439 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-09-15 22:55:36,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:55:36,448 INFO L93 Difference]: Finished difference Result 212 states and 578 transitions. [2020-09-15 22:55:36,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 22:55:36,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-15 22:55:36,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:55:36,451 INFO L225 Difference]: With dead ends: 212 [2020-09-15 22:55:36,451 INFO L226 Difference]: Without dead ends: 212 [2020-09-15 22:55:36,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:55:36,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-09-15 22:55:36,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-09-15 22:55:36,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-15 22:55:36,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 578 transitions. [2020-09-15 22:55:36,474 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 578 transitions. Word has length 9 [2020-09-15 22:55:36,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:55:36,474 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 578 transitions. [2020-09-15 22:55:36,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 22:55:36,475 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 578 transitions. [2020-09-15 22:55:36,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-15 22:55:36,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:55:36,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:55:36,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 22:55:36,482 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:55:36,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:55:36,482 INFO L82 PathProgramCache]: Analyzing trace with hash -409878926, now seen corresponding path program 1 times [2020-09-15 22:55:36,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:55:36,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722886548] [2020-09-15 22:55:36,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:55:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:55:36,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:55:36,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722886548] [2020-09-15 22:55:36,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:55:36,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 22:55:36,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [721888851] [2020-09-15 22:55:36,562 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:55:36,563 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:55:36,565 INFO L274 McrAutomatonBuilder]: Finished intersection with 17 states and 23 transitions. [2020-09-15 22:55:36,565 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:55:36,600 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:55:36,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 22:55:36,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:55:36,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 22:55:36,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 22:55:36,602 INFO L87 Difference]: Start difference. First operand 212 states and 578 transitions. Second operand 4 states. [2020-09-15 22:55:36,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:55:36,631 INFO L93 Difference]: Finished difference Result 293 states and 785 transitions. [2020-09-15 22:55:36,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 22:55:36,632 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-15 22:55:36,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:55:36,634 INFO L225 Difference]: With dead ends: 293 [2020-09-15 22:55:36,634 INFO L226 Difference]: Without dead ends: 197 [2020-09-15 22:55:36,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 22:55:36,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-09-15 22:55:36,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-09-15 22:55:36,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-15 22:55:36,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 525 transitions. [2020-09-15 22:55:36,666 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 525 transitions. Word has length 10 [2020-09-15 22:55:36,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:55:36,667 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 525 transitions. [2020-09-15 22:55:36,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 22:55:36,667 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 525 transitions. [2020-09-15 22:55:36,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-15 22:55:36,671 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:55:36,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:55:36,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 22:55:36,674 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:55:36,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:55:36,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1131193343, now seen corresponding path program 1 times [2020-09-15 22:55:36,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:55:36,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400920347] [2020-09-15 22:55:36,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:55:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:55:36,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:55:36,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400920347] [2020-09-15 22:55:36,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:55:36,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 22:55:36,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [991378260] [2020-09-15 22:55:36,742 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:55:36,743 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:55:36,746 INFO L274 McrAutomatonBuilder]: Finished intersection with 25 states and 38 transitions. [2020-09-15 22:55:36,746 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:55:36,752 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:55:36,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 22:55:36,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:55:36,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 22:55:36,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:55:36,753 INFO L87 Difference]: Start difference. First operand 197 states and 525 transitions. Second operand 3 states. [2020-09-15 22:55:36,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:55:36,763 INFO L93 Difference]: Finished difference Result 269 states and 681 transitions. [2020-09-15 22:55:36,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 22:55:36,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-15 22:55:36,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:55:36,766 INFO L225 Difference]: With dead ends: 269 [2020-09-15 22:55:36,766 INFO L226 Difference]: Without dead ends: 209 [2020-09-15 22:55:36,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:55:36,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-09-15 22:55:36,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 191. [2020-09-15 22:55:36,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-15 22:55:36,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 476 transitions. [2020-09-15 22:55:36,779 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 476 transitions. Word has length 11 [2020-09-15 22:55:36,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:55:36,779 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 476 transitions. [2020-09-15 22:55:36,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 22:55:36,779 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 476 transitions. [2020-09-15 22:55:36,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-15 22:55:36,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:55:36,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:55:36,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 22:55:36,781 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:55:36,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:55:36,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1251156259, now seen corresponding path program 1 times [2020-09-15 22:55:36,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:55:36,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348715471] [2020-09-15 22:55:36,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:55:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:55:36,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:55:36,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348715471] [2020-09-15 22:55:36,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:55:36,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 22:55:36,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [732957235] [2020-09-15 22:55:36,869 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:55:36,870 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:55:36,873 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 45 transitions. [2020-09-15 22:55:36,873 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:55:36,963 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:55:36,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 22:55:36,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:55:36,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 22:55:36,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 22:55:36,965 INFO L87 Difference]: Start difference. First operand 191 states and 476 transitions. Second operand 4 states. [2020-09-15 22:55:36,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:55:36,996 INFO L93 Difference]: Finished difference Result 250 states and 578 transitions. [2020-09-15 22:55:36,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 22:55:36,996 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-15 22:55:36,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:55:36,998 INFO L225 Difference]: With dead ends: 250 [2020-09-15 22:55:36,998 INFO L226 Difference]: Without dead ends: 158 [2020-09-15 22:55:36,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 22:55:37,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-15 22:55:37,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 146. [2020-09-15 22:55:37,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-15 22:55:37,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 330 transitions. [2020-09-15 22:55:37,006 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 330 transitions. Word has length 11 [2020-09-15 22:55:37,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:55:37,006 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 330 transitions. [2020-09-15 22:55:37,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 22:55:37,006 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 330 transitions. [2020-09-15 22:55:37,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-15 22:55:37,008 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:55:37,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:55:37,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 22:55:37,008 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:55:37,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:55:37,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1304596236, now seen corresponding path program 1 times [2020-09-15 22:55:37,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:55:37,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980974288] [2020-09-15 22:55:37,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:55:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:55:37,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:55:37,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980974288] [2020-09-15 22:55:37,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:55:37,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 22:55:37,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1474824509] [2020-09-15 22:55:37,070 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:55:37,073 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:55:37,075 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-09-15 22:55:37,075 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:55:37,111 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:55:37,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 22:55:37,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:55:37,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 22:55:37,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:55:37,113 INFO L87 Difference]: Start difference. First operand 146 states and 330 transitions. Second operand 3 states. [2020-09-15 22:55:37,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:55:37,122 INFO L93 Difference]: Finished difference Result 138 states and 304 transitions. [2020-09-15 22:55:37,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 22:55:37,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-15 22:55:37,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:55:37,124 INFO L225 Difference]: With dead ends: 138 [2020-09-15 22:55:37,124 INFO L226 Difference]: Without dead ends: 138 [2020-09-15 22:55:37,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:55:37,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-09-15 22:55:37,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-09-15 22:55:37,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-15 22:55:37,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 304 transitions. [2020-09-15 22:55:37,131 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 304 transitions. Word has length 11 [2020-09-15 22:55:37,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:55:37,132 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 304 transitions. [2020-09-15 22:55:37,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 22:55:37,132 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 304 transitions. [2020-09-15 22:55:37,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-15 22:55:37,138 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:55:37,139 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:55:37,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-15 22:55:37,139 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:55:37,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:55:37,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1787779324, now seen corresponding path program 1 times [2020-09-15 22:55:37,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:55:37,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880339472] [2020-09-15 22:55:37,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:55:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:55:37,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:55:37,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880339472] [2020-09-15 22:55:37,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:55:37,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 22:55:37,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1835184159] [2020-09-15 22:55:37,193 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:55:37,194 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:55:37,196 INFO L274 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-09-15 22:55:37,197 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:55:37,204 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:55:37,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 22:55:37,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:55:37,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 22:55:37,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:55:37,205 INFO L87 Difference]: Start difference. First operand 138 states and 304 transitions. Second operand 3 states. [2020-09-15 22:55:37,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:55:37,218 INFO L93 Difference]: Finished difference Result 146 states and 304 transitions. [2020-09-15 22:55:37,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 22:55:37,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-15 22:55:37,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:55:37,219 INFO L225 Difference]: With dead ends: 146 [2020-09-15 22:55:37,219 INFO L226 Difference]: Without dead ends: 56 [2020-09-15 22:55:37,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:55:37,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-15 22:55:37,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-09-15 22:55:37,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-15 22:55:37,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 108 transitions. [2020-09-15 22:55:37,223 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 108 transitions. Word has length 12 [2020-09-15 22:55:37,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:55:37,223 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 108 transitions. [2020-09-15 22:55:37,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 22:55:37,223 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 108 transitions. [2020-09-15 22:55:37,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-15 22:55:37,224 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:55:37,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:55:37,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-15 22:55:37,225 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:55:37,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:55:37,225 INFO L82 PathProgramCache]: Analyzing trace with hash 413447767, now seen corresponding path program 1 times [2020-09-15 22:55:37,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:55:37,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026778048] [2020-09-15 22:55:37,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:55:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:55:37,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:55:37,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026778048] [2020-09-15 22:55:37,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:55:37,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 22:55:37,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [662551435] [2020-09-15 22:55:37,267 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:55:37,269 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:55:37,273 INFO L274 McrAutomatonBuilder]: Finished intersection with 33 states and 53 transitions. [2020-09-15 22:55:37,273 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:55:37,283 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:55:37,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 22:55:37,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:55:37,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 22:55:37,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 22:55:37,284 INFO L87 Difference]: Start difference. First operand 56 states and 108 transitions. Second operand 4 states. [2020-09-15 22:55:37,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:55:37,302 INFO L93 Difference]: Finished difference Result 64 states and 120 transitions. [2020-09-15 22:55:37,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 22:55:37,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-15 22:55:37,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:55:37,303 INFO L225 Difference]: With dead ends: 64 [2020-09-15 22:55:37,303 INFO L226 Difference]: Without dead ends: 52 [2020-09-15 22:55:37,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 22:55:37,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-15 22:55:37,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-09-15 22:55:37,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-15 22:55:37,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 96 transitions. [2020-09-15 22:55:37,306 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 96 transitions. Word has length 13 [2020-09-15 22:55:37,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:55:37,306 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 96 transitions. [2020-09-15 22:55:37,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 22:55:37,307 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2020-09-15 22:55:37,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-15 22:55:37,307 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:55:37,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:55:37,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-15 22:55:37,308 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:55:37,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:55:37,308 INFO L82 PathProgramCache]: Analyzing trace with hash 413415217, now seen corresponding path program 2 times [2020-09-15 22:55:37,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:55:37,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234707411] [2020-09-15 22:55:37,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:55:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:55:37,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:55:37,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234707411] [2020-09-15 22:55:37,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:55:37,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 22:55:37,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1966291979] [2020-09-15 22:55:37,387 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:55:37,388 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:55:37,393 INFO L274 McrAutomatonBuilder]: Finished intersection with 33 states and 53 transitions. [2020-09-15 22:55:37,393 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:55:37,421 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 22:55:37,451 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 22:55:37,469 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 22:55:37,483 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 22:55:37,500 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 22:55:37,512 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4813#(not (= 3 ~__unbuffered_cnt~0))] [2020-09-15 22:55:37,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 22:55:37,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:55:37,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 22:55:37,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-15 22:55:37,513 INFO L87 Difference]: Start difference. First operand 52 states and 96 transitions. Second operand 5 states. [2020-09-15 22:55:37,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:55:37,564 INFO L93 Difference]: Finished difference Result 45 states and 76 transitions. [2020-09-15 22:55:37,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 22:55:37,565 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-15 22:55:37,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:55:37,565 INFO L225 Difference]: With dead ends: 45 [2020-09-15 22:55:37,566 INFO L226 Difference]: Without dead ends: 31 [2020-09-15 22:55:37,566 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-15 22:55:37,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-15 22:55:37,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-15 22:55:37,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-15 22:55:37,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 44 transitions. [2020-09-15 22:55:37,568 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 44 transitions. Word has length 13 [2020-09-15 22:55:37,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:55:37,568 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 44 transitions. [2020-09-15 22:55:37,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 22:55:37,569 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2020-09-15 22:55:37,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-15 22:55:37,569 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:55:37,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:55:37,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-15 22:55:37,570 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:55:37,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:55:37,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1126720068, now seen corresponding path program 1 times [2020-09-15 22:55:37,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:55:37,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777326826] [2020-09-15 22:55:37,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:55:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:55:37,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:55:37,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777326826] [2020-09-15 22:55:37,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:55:37,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-15 22:55:37,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1094379744] [2020-09-15 22:55:37,648 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:55:37,650 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:55:37,655 INFO L274 McrAutomatonBuilder]: Finished intersection with 35 states and 54 transitions. [2020-09-15 22:55:37,655 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:55:37,675 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 22:55:37,701 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4933#(<= ~__unbuffered_cnt~0 0)] [2020-09-15 22:55:37,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-15 22:55:37,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:55:37,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-15 22:55:37,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-15 22:55:37,703 INFO L87 Difference]: Start difference. First operand 31 states and 44 transitions. Second operand 7 states. [2020-09-15 22:55:37,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:55:37,730 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2020-09-15 22:55:37,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-15 22:55:37,731 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-09-15 22:55:37,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:55:37,731 INFO L225 Difference]: With dead ends: 28 [2020-09-15 22:55:37,731 INFO L226 Difference]: Without dead ends: 0 [2020-09-15 22:55:37,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-15 22:55:37,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-15 22:55:37,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-15 22:55:37,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-15 22:55:37,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-15 22:55:37,733 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-09-15 22:55:37,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:55:37,733 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-15 22:55:37,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-15 22:55:37,733 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-15 22:55:37,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-15 22:55:37,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-15 22:55:37,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 10:55:37 BasicIcfg [2020-09-15 22:55:37,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 22:55:37,742 INFO L168 Benchmark]: Toolchain (without parser) took 5232.43 ms. Allocated memory was 141.0 MB in the beginning and 246.4 MB in the end (delta: 105.4 MB). Free memory was 103.1 MB in the beginning and 104.1 MB in the end (delta: -979.6 kB). Peak memory consumption was 104.4 MB. Max. memory is 7.1 GB. [2020-09-15 22:55:37,743 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 22:55:37,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.48 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 102.7 MB in the beginning and 163.0 MB in the end (delta: -60.3 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-09-15 22:55:37,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.21 ms. Allocated memory is still 205.0 MB. Free memory was 162.3 MB in the beginning and 160.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-15 22:55:37,746 INFO L168 Benchmark]: Boogie Preprocessor took 31.90 ms. Allocated memory is still 205.0 MB. Free memory was 160.4 MB in the beginning and 159.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-15 22:55:37,746 INFO L168 Benchmark]: RCFGBuilder took 488.78 ms. Allocated memory is still 205.0 MB. Free memory was 159.1 MB in the beginning and 136.8 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-09-15 22:55:37,747 INFO L168 Benchmark]: TraceAbstraction took 3857.60 ms. Allocated memory was 205.0 MB in the beginning and 246.4 MB in the end (delta: 41.4 MB). Free memory was 136.8 MB in the beginning and 104.1 MB in the end (delta: 32.7 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. [2020-09-15 22:55:37,751 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 788.48 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 102.7 MB in the beginning and 163.0 MB in the end (delta: -60.3 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.21 ms. Allocated memory is still 205.0 MB. Free memory was 162.3 MB in the beginning and 160.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.90 ms. Allocated memory is still 205.0 MB. Free memory was 160.4 MB in the beginning and 159.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 488.78 ms. Allocated memory is still 205.0 MB. Free memory was 159.1 MB in the beginning and 136.8 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3857.60 ms. Allocated memory was 205.0 MB in the beginning and 246.4 MB in the end (delta: 41.4 MB). Free memory was 136.8 MB in the beginning and 104.1 MB in the end (delta: 32.7 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 656 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2483 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 197 SDtfs, 103 SDslu, 186 SDs, 0 SdLazy, 88 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 112 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 3095 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...