/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/safe008_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 23:33:18,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 23:33:18,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 23:33:18,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 23:33:18,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 23:33:19,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 23:33:19,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 23:33:19,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 23:33:19,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 23:33:19,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 23:33:19,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 23:33:19,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 23:33:19,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 23:33:19,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 23:33:19,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 23:33:19,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 23:33:19,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 23:33:19,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 23:33:19,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 23:33:19,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 23:33:19,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 23:33:19,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 23:33:19,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 23:33:19,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 23:33:19,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 23:33:19,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 23:33:19,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 23:33:19,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 23:33:19,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 23:33:19,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 23:33:19,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 23:33:19,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 23:33:19,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 23:33:19,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 23:33:19,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 23:33:19,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 23:33:19,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 23:33:19,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 23:33:19,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 23:33:19,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 23:33:19,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 23:33:19,073 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 [2020-09-11 23:33:19,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 23:33:19,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 23:33:19,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 23:33:19,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 23:33:19,121 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 23:33:19,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 23:33:19,121 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 23:33:19,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 23:33:19,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 23:33:19,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 23:33:19,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 23:33:19,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 23:33:19,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 23:33:19,124 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 23:33:19,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 23:33:19,124 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 23:33:19,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 23:33:19,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 23:33:19,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 23:33:19,125 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 23:33:19,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 23:33:19,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 23:33:19,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 23:33:19,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-11 23:33:19,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 23:33:19,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 23:33:19,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 23:33:19,127 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-11 23:33:19,127 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-11 23:33:19,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 23:33:19,127 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-11 23:33:19,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 23:33:19,581 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 23:33:19,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 23:33:19,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 23:33:19,591 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 23:33:19,592 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2020-09-11 23:33:19,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b424874fb/8c49e76cb4324b6188074f6fe4785a00/FLAGe5482d87e [2020-09-11 23:33:20,371 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 23:33:20,372 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2020-09-11 23:33:20,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b424874fb/8c49e76cb4324b6188074f6fe4785a00/FLAGe5482d87e [2020-09-11 23:33:20,597 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b424874fb/8c49e76cb4324b6188074f6fe4785a00 [2020-09-11 23:33:20,610 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 23:33:20,616 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 23:33:20,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 23:33:20,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 23:33:20,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 23:33:20,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 11:33:20" (1/1) ... [2020-09-11 23:33:20,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a4c551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:33:20, skipping insertion in model container [2020-09-11 23:33:20,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 11:33:20" (1/1) ... [2020-09-11 23:33:20,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 23:33:20,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 23:33:21,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 23:33:21,307 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 23:33:21,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 23:33:21,443 INFO L208 MainTranslator]: Completed translation [2020-09-11 23:33:21,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:33:21 WrapperNode [2020-09-11 23:33:21,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 23:33:21,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 23:33:21,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 23:33:21,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 23:33:21,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:33:21" (1/1) ... [2020-09-11 23:33:21,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:33:21" (1/1) ... [2020-09-11 23:33:21,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 23:33:21,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 23:33:21,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 23:33:21,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 23:33:21,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:33:21" (1/1) ... [2020-09-11 23:33:21,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:33:21" (1/1) ... [2020-09-11 23:33:21,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:33:21" (1/1) ... [2020-09-11 23:33:21,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:33:21" (1/1) ... [2020-09-11 23:33:21,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:33:21" (1/1) ... [2020-09-11 23:33:21,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:33:21" (1/1) ... [2020-09-11 23:33:21,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:33:21" (1/1) ... [2020-09-11 23:33:21,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 23:33:21,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 23:33:21,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 23:33:21,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 23:33:21,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:33:21" (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 [2020-09-11 23:33:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 23:33:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 23:33:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 23:33:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 23:33:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 23:33:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 23:33:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 23:33:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 23:33:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 23:33:21,627 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 23:33:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 23:33:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 23:33:21,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 23:33:21,630 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 23:33:22,039 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 23:33:22,039 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 23:33:22,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 11:33:22 BoogieIcfgContainer [2020-09-11 23:33:22,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 23:33:22,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 23:33:22,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 23:33:22,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 23:33:22,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 11:33:20" (1/3) ... [2020-09-11 23:33:22,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ba6151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 11:33:22, skipping insertion in model container [2020-09-11 23:33:22,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:33:21" (2/3) ... [2020-09-11 23:33:22,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ba6151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 11:33:22, skipping insertion in model container [2020-09-11 23:33:22,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 11:33:22" (3/3) ... [2020-09-11 23:33:22,058 INFO L109 eAbstractionObserver]: Analyzing ICFG safe008_tso.oepc.i [2020-09-11 23:33:22,070 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 23:33:22,070 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-11 23:33:22,082 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 23:33:22,083 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 23:33:22,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,114 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,114 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,114 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,115 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,115 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,116 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,116 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,116 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,117 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,117 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,117 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,118 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,118 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,118 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,119 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,119 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,119 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,124 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,124 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,125 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,125 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,133 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,133 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,138 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,139 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,139 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,139 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:33:22,164 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-11 23:33:22,193 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 23:33:22,194 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 23:33:22,194 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-11 23:33:22,194 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-11 23:33:22,194 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 23:33:22,195 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 23:33:22,195 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 23:33:22,195 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 23:33:22,216 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-09-11 23:33:22,218 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-11 23:33:22,277 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-11 23:33:22,279 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 23:33:22,286 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-11 23:33:22,292 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-11 23:33:22,343 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-11 23:33:22,343 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 23:33:22,345 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-11 23:33:22,348 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-11 23:33:22,351 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-11 23:33:23,614 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-09-11 23:33:23,670 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2250 [2020-09-11 23:33:23,670 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2020-09-11 23:33:23,675 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-11 23:33:23,707 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-11 23:33:23,710 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-11 23:33:23,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 23:33:23,722 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:33:23,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:33:23,724 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:33:23,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:33:23,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1626400852, now seen corresponding path program 1 times [2020-09-11 23:33:23,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:33:23,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324145490] [2020-09-11 23:33:23,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:33:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:33:23,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:33:23,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324145490] [2020-09-11 23:33:23,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:33:23,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:33:23,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2059154142] [2020-09-11 23:33:23,971 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:33:23,974 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:33:23,992 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-11 23:33:23,993 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:33:23,995 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:33:23,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-11 23:33:23,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:33:24,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-11 23:33:24,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-11 23:33:24,018 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-11 23:33:24,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:33:24,045 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-11 23:33:24,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-11 23:33:24,047 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-11 23:33:24,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:33:24,074 INFO L225 Difference]: With dead ends: 362 [2020-09-11 23:33:24,074 INFO L226 Difference]: Without dead ends: 298 [2020-09-11 23:33:24,076 INFO L675 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 [2020-09-11 23:33:24,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-11 23:33:24,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-11 23:33:24,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-11 23:33:24,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-11 23:33:24,162 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-11 23:33:24,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:33:24,164 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-11 23:33:24,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-11 23:33:24,164 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-11 23:33:24,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 23:33:24,166 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:33:24,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:33:24,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 23:33:24,167 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:33:24,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:33:24,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1121187596, now seen corresponding path program 1 times [2020-09-11 23:33:24,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:33:24,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270188630] [2020-09-11 23:33:24,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:33:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:33:24,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:33:24,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270188630] [2020-09-11 23:33:24,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:33:24,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:33:24,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1559729975] [2020-09-11 23:33:24,325 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:33:24,326 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:33:24,328 INFO L274 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-09-11 23:33:24,328 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:33:24,329 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:33:24,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:33:24,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:33:24,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:33:24,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:33:24,331 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-09-11 23:33:24,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:33:24,372 INFO L93 Difference]: Finished difference Result 346 states and 956 transitions. [2020-09-11 23:33:24,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 23:33:24,373 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-11 23:33:24,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:33:24,377 INFO L225 Difference]: With dead ends: 346 [2020-09-11 23:33:24,377 INFO L226 Difference]: Without dead ends: 282 [2020-09-11 23:33:24,378 INFO L675 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 [2020-09-11 23:33:24,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-11 23:33:24,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-09-11 23:33:24,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-11 23:33:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 804 transitions. [2020-09-11 23:33:24,409 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 804 transitions. Word has length 9 [2020-09-11 23:33:24,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:33:24,410 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 804 transitions. [2020-09-11 23:33:24,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:33:24,410 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 804 transitions. [2020-09-11 23:33:24,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 23:33:24,412 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:33:24,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:33:24,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 23:33:24,412 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:33:24,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:33:24,413 INFO L82 PathProgramCache]: Analyzing trace with hash -397112394, now seen corresponding path program 1 times [2020-09-11 23:33:24,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:33:24,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27325010] [2020-09-11 23:33:24,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:33:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:33:24,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:33:24,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27325010] [2020-09-11 23:33:24,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:33:24,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:33:24,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1293890230] [2020-09-11 23:33:24,548 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:33:24,549 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:33:24,551 INFO L274 McrAutomatonBuilder]: Finished intersection with 16 states and 20 transitions. [2020-09-11 23:33:24,551 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:33:24,600 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:33:24,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:33:24,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:33:24,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:33:24,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:33:24,601 INFO L87 Difference]: Start difference. First operand 282 states and 804 transitions. Second operand 4 states. [2020-09-11 23:33:24,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:33:24,624 INFO L93 Difference]: Finished difference Result 310 states and 844 transitions. [2020-09-11 23:33:24,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 23:33:24,625 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-11 23:33:24,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:33:24,628 INFO L225 Difference]: With dead ends: 310 [2020-09-11 23:33:24,628 INFO L226 Difference]: Without dead ends: 254 [2020-09-11 23:33:24,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:33:24,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-11 23:33:24,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-09-11 23:33:24,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-11 23:33:24,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 708 transitions. [2020-09-11 23:33:24,645 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 708 transitions. Word has length 10 [2020-09-11 23:33:24,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:33:24,646 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 708 transitions. [2020-09-11 23:33:24,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:33:24,646 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 708 transitions. [2020-09-11 23:33:24,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 23:33:24,648 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:33:24,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:33:24,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 23:33:24,648 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:33:24,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:33:24,649 INFO L82 PathProgramCache]: Analyzing trace with hash 2136948955, now seen corresponding path program 1 times [2020-09-11 23:33:24,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:33:24,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297160772] [2020-09-11 23:33:24,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:33:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:33:24,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:33:24,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297160772] [2020-09-11 23:33:24,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:33:24,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:33:24,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [311015129] [2020-09-11 23:33:24,733 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:33:24,734 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:33:24,736 INFO L274 McrAutomatonBuilder]: Finished intersection with 24 states and 38 transitions. [2020-09-11 23:33:24,736 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:33:24,844 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:33:24,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 23:33:24,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:33:24,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 23:33:24,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:33:24,845 INFO L87 Difference]: Start difference. First operand 254 states and 708 transitions. Second operand 5 states. [2020-09-11 23:33:24,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:33:24,888 INFO L93 Difference]: Finished difference Result 320 states and 860 transitions. [2020-09-11 23:33:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 23:33:24,889 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-09-11 23:33:24,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:33:24,890 INFO L225 Difference]: With dead ends: 320 [2020-09-11 23:33:24,890 INFO L226 Difference]: Without dead ends: 158 [2020-09-11 23:33:24,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 23:33:24,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-11 23:33:24,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-09-11 23:33:24,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-11 23:33:24,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 396 transitions. [2020-09-11 23:33:24,899 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 396 transitions. Word has length 11 [2020-09-11 23:33:24,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:33:24,900 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 396 transitions. [2020-09-11 23:33:24,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 23:33:24,900 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 396 transitions. [2020-09-11 23:33:24,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 23:33:24,901 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:33:24,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:33:24,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 23:33:24,902 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:33:24,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:33:24,902 INFO L82 PathProgramCache]: Analyzing trace with hash 625195173, now seen corresponding path program 1 times [2020-09-11 23:33:24,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:33:24,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131368008] [2020-09-11 23:33:24,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:33:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:33:24,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:33:24,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131368008] [2020-09-11 23:33:24,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:33:24,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:33:24,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [904905845] [2020-09-11 23:33:24,965 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:33:24,966 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:33:24,968 INFO L274 McrAutomatonBuilder]: Finished intersection with 26 states and 38 transitions. [2020-09-11 23:33:24,968 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:33:25,075 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:33:25,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:33:25,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:33:25,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:33:25,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:33:25,077 INFO L87 Difference]: Start difference. First operand 158 states and 396 transitions. Second operand 4 states. [2020-09-11 23:33:25,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:33:25,094 INFO L93 Difference]: Finished difference Result 170 states and 410 transitions. [2020-09-11 23:33:25,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 23:33:25,094 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-11 23:33:25,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:33:25,096 INFO L225 Difference]: With dead ends: 170 [2020-09-11 23:33:25,096 INFO L226 Difference]: Without dead ends: 146 [2020-09-11 23:33:25,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:33:25,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-11 23:33:25,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-09-11 23:33:25,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-11 23:33:25,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-09-11 23:33:25,102 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 12 [2020-09-11 23:33:25,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:33:25,103 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-09-11 23:33:25,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:33:25,103 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-09-11 23:33:25,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 23:33:25,105 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:33:25,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:33:25,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 23:33:25,105 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:33:25,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:33:25,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1939864517, now seen corresponding path program 1 times [2020-09-11 23:33:25,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:33:25,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732377144] [2020-09-11 23:33:25,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:33:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:33:25,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:33:25,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732377144] [2020-09-11 23:33:25,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:33:25,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:33:25,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [433172394] [2020-09-11 23:33:25,176 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:33:25,177 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:33:25,181 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 56 transitions. [2020-09-11 23:33:25,181 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:33:25,313 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:33:25,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 23:33:25,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:33:25,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 23:33:25,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:33:25,315 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-09-11 23:33:25,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:33:25,355 INFO L93 Difference]: Finished difference Result 176 states and 423 transitions. [2020-09-11 23:33:25,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 23:33:25,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-11 23:33:25,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:33:25,357 INFO L225 Difference]: With dead ends: 176 [2020-09-11 23:33:25,357 INFO L226 Difference]: Without dead ends: 98 [2020-09-11 23:33:25,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 23:33:25,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-11 23:33:25,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-09-11 23:33:25,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-11 23:33:25,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 218 transitions. [2020-09-11 23:33:25,362 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 218 transitions. Word has length 13 [2020-09-11 23:33:25,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:33:25,362 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 218 transitions. [2020-09-11 23:33:25,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 23:33:25,362 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 218 transitions. [2020-09-11 23:33:25,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-11 23:33:25,363 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:33:25,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:33:25,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 23:33:25,364 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:33:25,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:33:25,364 INFO L82 PathProgramCache]: Analyzing trace with hash -484565939, now seen corresponding path program 1 times [2020-09-11 23:33:25,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:33:25,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464556753] [2020-09-11 23:33:25,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:33:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:33:25,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:33:25,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464556753] [2020-09-11 23:33:25,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:33:25,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:33:25,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [709111898] [2020-09-11 23:33:25,424 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:33:25,425 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:33:25,429 INFO L274 McrAutomatonBuilder]: Finished intersection with 32 states and 48 transitions. [2020-09-11 23:33:25,430 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:33:25,452 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:33:25,479 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:33:25,493 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:33:25,508 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:33:25,535 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:33:25,553 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:33:25,562 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:33:25,570 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:33:25,578 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:33:25,587 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:33:25,597 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:33:25,605 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:33:25,613 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:33:25,616 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [5007#(not (= 3 ~__unbuffered_cnt~0))] [2020-09-11 23:33:25,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 23:33:25,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:33:25,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 23:33:25,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:33:25,617 INFO L87 Difference]: Start difference. First operand 98 states and 218 transitions. Second operand 5 states. [2020-09-11 23:33:25,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:33:25,668 INFO L93 Difference]: Finished difference Result 90 states and 177 transitions. [2020-09-11 23:33:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 23:33:25,669 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-11 23:33:25,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:33:25,670 INFO L225 Difference]: With dead ends: 90 [2020-09-11 23:33:25,670 INFO L226 Difference]: Without dead ends: 68 [2020-09-11 23:33:25,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-11 23:33:25,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-11 23:33:25,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-11 23:33:25,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-11 23:33:25,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 125 transitions. [2020-09-11 23:33:25,674 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 125 transitions. Word has length 14 [2020-09-11 23:33:25,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:33:25,674 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 125 transitions. [2020-09-11 23:33:25,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 23:33:25,675 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 125 transitions. [2020-09-11 23:33:25,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-11 23:33:25,675 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:33:25,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:33:25,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 23:33:25,676 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:33:25,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:33:25,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1105925332, now seen corresponding path program 1 times [2020-09-11 23:33:25,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:33:25,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557197950] [2020-09-11 23:33:25,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:33:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:33:25,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:33:25,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557197950] [2020-09-11 23:33:25,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:33:25,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-11 23:33:25,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1872442375] [2020-09-11 23:33:25,778 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:33:25,780 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:33:25,786 INFO L274 McrAutomatonBuilder]: Finished intersection with 44 states and 74 transitions. [2020-09-11 23:33:25,787 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:33:25,829 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:33:25,969 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [5244#(<= ~__unbuffered_cnt~0 0)] [2020-09-11 23:33:25,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-11 23:33:25,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:33:25,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-11 23:33:25,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-11 23:33:25,970 INFO L87 Difference]: Start difference. First operand 68 states and 125 transitions. Second operand 7 states. [2020-09-11 23:33:26,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:33:26,018 INFO L93 Difference]: Finished difference Result 61 states and 109 transitions. [2020-09-11 23:33:26,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 23:33:26,019 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-09-11 23:33:26,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:33:26,020 INFO L225 Difference]: With dead ends: 61 [2020-09-11 23:33:26,020 INFO L226 Difference]: Without dead ends: 55 [2020-09-11 23:33:26,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-11 23:33:26,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-11 23:33:26,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-11 23:33:26,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-11 23:33:26,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-09-11 23:33:26,023 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 16 [2020-09-11 23:33:26,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:33:26,024 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-09-11 23:33:26,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-11 23:33:26,024 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-09-11 23:33:26,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 23:33:26,025 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:33:26,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:33:26,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-11 23:33:26,025 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:33:26,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:33:26,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1123595488, now seen corresponding path program 1 times [2020-09-11 23:33:26,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:33:26,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533868181] [2020-09-11 23:33:26,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:33:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:33:26,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:33:26,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533868181] [2020-09-11 23:33:26,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:33:26,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:33:26,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [788887703] [2020-09-11 23:33:26,088 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:33:26,090 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:33:26,096 INFO L274 McrAutomatonBuilder]: Finished intersection with 43 states and 70 transitions. [2020-09-11 23:33:26,096 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:33:26,101 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:33:26,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:33:26,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:33:26,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:33:26,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:33:26,102 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 4 states. [2020-09-11 23:33:26,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:33:26,113 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-09-11 23:33:26,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 23:33:26,113 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-09-11 23:33:26,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:33:26,114 INFO L225 Difference]: With dead ends: 54 [2020-09-11 23:33:26,114 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 23:33:26,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:33:26,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 23:33:26,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 23:33:26,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 23:33:26,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 23:33:26,115 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-11 23:33:26,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:33:26,116 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 23:33:26,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:33:26,116 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 23:33:26,116 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 23:33:26,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-11 23:33:26,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 11:33:26 BasicIcfg [2020-09-11 23:33:26,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 23:33:26,124 INFO L168 Benchmark]: Toolchain (without parser) took 5511.59 ms. Allocated memory was 140.0 MB in the beginning and 275.3 MB in the end (delta: 135.3 MB). Free memory was 101.7 MB in the beginning and 186.5 MB in the end (delta: -84.8 MB). Peak memory consumption was 50.5 MB. Max. memory is 7.1 GB. [2020-09-11 23:33:26,124 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 23:33:26,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 827.70 ms. Allocated memory was 140.0 MB in the beginning and 206.0 MB in the end (delta: 66.1 MB). Free memory was 101.3 MB in the beginning and 163.2 MB in the end (delta: -61.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-09-11 23:33:26,126 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.45 ms. Allocated memory is still 206.0 MB. Free memory was 163.2 MB in the beginning and 161.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-11 23:33:26,127 INFO L168 Benchmark]: Boogie Preprocessor took 33.84 ms. Allocated memory is still 206.0 MB. Free memory was 161.1 MB in the beginning and 159.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-11 23:33:26,128 INFO L168 Benchmark]: RCFGBuilder took 509.60 ms. Allocated memory is still 206.0 MB. Free memory was 159.1 MB in the beginning and 137.4 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-09-11 23:33:26,129 INFO L168 Benchmark]: TraceAbstraction took 4072.46 ms. Allocated memory was 206.0 MB in the beginning and 275.3 MB in the end (delta: 69.2 MB). Free memory was 136.7 MB in the beginning and 186.5 MB in the end (delta: -49.8 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. [2020-09-11 23:33:26,133 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 827.70 ms. Allocated memory was 140.0 MB in the beginning and 206.0 MB in the end (delta: 66.1 MB). Free memory was 101.3 MB in the beginning and 163.2 MB in the end (delta: -61.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.45 ms. Allocated memory is still 206.0 MB. Free memory was 163.2 MB in the beginning and 161.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.84 ms. Allocated memory is still 206.0 MB. Free memory was 161.1 MB in the beginning and 159.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 509.60 ms. Allocated memory is still 206.0 MB. Free memory was 159.1 MB in the beginning and 137.4 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4072.46 ms. Allocated memory was 206.0 MB in the beginning and 275.3 MB in the end (delta: 69.2 MB). Free memory was 136.7 MB in the beginning and 186.5 MB in the end (delta: -49.8 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 78 ProgramPointsBefore, 32 ProgramPointsAfterwards, 70 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 637 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2250 CheckedPairsTotal, 55 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 193 SDtfs, 160 SDslu, 286 SDs, 0 SdLazy, 107 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 186 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 3231 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...