/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 11:14:07,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 11:14:07,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 11:14:07,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 11:14:07,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 11:14:07,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 11:14:07,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 11:14:07,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 11:14:07,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 11:14:07,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 11:14:07,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 11:14:07,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 11:14:07,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 11:14:07,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 11:14:07,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 11:14:07,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 11:14:07,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 11:14:07,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 11:14:07,935 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 11:14:07,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 11:14:07,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 11:14:07,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 11:14:07,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 11:14:07,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 11:14:07,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 11:14:07,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 11:14:07,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 11:14:07,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 11:14:07,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 11:14:07,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 11:14:07,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 11:14:07,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 11:14:07,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 11:14:07,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 11:14:07,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 11:14:07,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 11:14:07,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 11:14:07,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 11:14:07,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 11:14:07,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 11:14:07,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 11:14:07,955 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-McrStrategy.epf [2020-04-18 11:14:07,980 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 11:14:07,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 11:14:07,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 11:14:07,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 11:14:07,983 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 11:14:07,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 11:14:07,983 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 11:14:07,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 11:14:07,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 11:14:07,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 11:14:07,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 11:14:07,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 11:14:07,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 11:14:07,986 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 11:14:07,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 11:14:07,986 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 11:14:07,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 11:14:07,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 11:14:07,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 11:14:07,987 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 11:14:07,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 11:14:07,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 11:14:07,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 11:14:07,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 11:14:07,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 11:14:07,988 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 11:14:07,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 11:14:07,989 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 11:14:07,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 11:14:07,989 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 11:14:08,297 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 11:14:08,309 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 11:14:08,313 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 11:14:08,315 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 11:14:08,315 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 11:14:08,316 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2020-04-18 11:14:08,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b8e9010d/72f7fc2f2ea842ca889ebc565dff626c/FLAG1f8ac796c [2020-04-18 11:14:08,907 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 11:14:08,908 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2020-04-18 11:14:08,923 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b8e9010d/72f7fc2f2ea842ca889ebc565dff626c/FLAG1f8ac796c [2020-04-18 11:14:09,184 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b8e9010d/72f7fc2f2ea842ca889ebc565dff626c [2020-04-18 11:14:09,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 11:14:09,215 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 11:14:09,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 11:14:09,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 11:14:09,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 11:14:09,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:14:09" (1/1) ... [2020-04-18 11:14:09,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4112f799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:14:09, skipping insertion in model container [2020-04-18 11:14:09,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:14:09" (1/1) ... [2020-04-18 11:14:09,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 11:14:09,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 11:14:09,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:14:09,863 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 11:14:09,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:14:10,018 INFO L208 MainTranslator]: Completed translation [2020-04-18 11:14:10,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:14:10 WrapperNode [2020-04-18 11:14:10,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 11:14:10,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 11:14:10,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 11:14:10,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 11:14:10,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:14:10" (1/1) ... [2020-04-18 11:14:10,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:14:10" (1/1) ... [2020-04-18 11:14:10,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 11:14:10,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 11:14:10,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 11:14:10,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 11:14:10,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:14:10" (1/1) ... [2020-04-18 11:14:10,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:14:10" (1/1) ... [2020-04-18 11:14:10,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:14:10" (1/1) ... [2020-04-18 11:14:10,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:14:10" (1/1) ... [2020-04-18 11:14:10,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:14:10" (1/1) ... [2020-04-18 11:14:10,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:14:10" (1/1) ... [2020-04-18 11:14:10,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:14:10" (1/1) ... [2020-04-18 11:14:10,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 11:14:10,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 11:14:10,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 11:14:10,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 11:14:10,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:14:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 11:14:10,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 11:14:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 11:14:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 11:14:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 11:14:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 11:14:10,190 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 11:14:10,190 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 11:14:10,191 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 11:14:10,191 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 11:14:10,192 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 11:14:10,192 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-04-18 11:14:10,192 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-04-18 11:14:10,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 11:14:10,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 11:14:10,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 11:14:10,195 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 11:14:10,674 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 11:14:10,675 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 11:14:10,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:14:10 BoogieIcfgContainer [2020-04-18 11:14:10,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 11:14:10,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 11:14:10,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 11:14:10,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 11:14:10,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 11:14:09" (1/3) ... [2020-04-18 11:14:10,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697bb2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:14:10, skipping insertion in model container [2020-04-18 11:14:10,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:14:10" (2/3) ... [2020-04-18 11:14:10,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697bb2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:14:10, skipping insertion in model container [2020-04-18 11:14:10,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:14:10" (3/3) ... [2020-04-18 11:14:10,691 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_pso.opt.i [2020-04-18 11:14:10,703 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 11:14:10,703 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 11:14:10,711 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 11:14:10,712 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 11:14:10,749 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,749 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,749 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,750 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,750 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,751 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,751 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,751 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,751 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,752 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,753 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,753 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,754 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,754 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,755 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,755 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,756 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,756 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,757 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,757 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,757 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,758 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,759 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,759 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,766 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,767 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,767 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,767 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,774 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,774 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,775 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,775 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,779 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,779 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,779 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,780 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,782 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,783 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,783 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,783 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:14:10,799 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 11:14:10,815 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 11:14:10,815 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 11:14:10,816 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 11:14:10,816 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 11:14:10,816 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 11:14:10,816 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 11:14:10,816 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 11:14:10,816 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 11:14:10,831 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-04-18 11:14:10,833 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-04-18 11:14:10,876 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-04-18 11:14:10,876 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 11:14:10,882 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-04-18 11:14:10,886 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-04-18 11:14:10,911 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-04-18 11:14:10,912 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 11:14:10,913 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-04-18 11:14:10,916 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-04-18 11:14:10,917 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-18 11:14:12,744 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-04-18 11:14:12,744 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-04-18 11:14:12,748 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-04-18 11:14:12,812 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-04-18 11:14:12,814 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-04-18 11:14:12,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 11:14:12,825 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:14:12,826 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:14:12,826 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:14:12,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:12,833 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-04-18 11:14:12,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:14:12,841 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [956771914] [2020-04-18 11:14:12,858 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:12,871 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-04-18 11:14:12,873 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-04-18 11:14:12,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 11:14:12,874 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:14:12,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:12,874 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 2 times [2020-04-18 11:14:12,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:12,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410311519] [2020-04-18 11:14:12,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:13,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:13,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410311519] [2020-04-18 11:14:13,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:13,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:14:13,170 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:13,174 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:13,188 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-04-18 11:14:13,188 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:13,195 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:14:13,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 11:14:13,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 11:14:13,202 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2020-04-18 11:14:13,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:13,206 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-04-18 11:14:13,207 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-04-18 11:14:13,207 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:14:13,208 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [956771914] [2020-04-18 11:14:13,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:14:13,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:14:13,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [956771914] [2020-04-18 11:14:13,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 11:14:13,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:14:13,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 11:14:13,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 11:14:13,217 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-04-18 11:14:13,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:13,244 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-04-18 11:14:13,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 11:14:13,246 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-04-18 11:14:13,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:14:13,273 INFO L225 Difference]: With dead ends: 850 [2020-04-18 11:14:13,273 INFO L226 Difference]: Without dead ends: 706 [2020-04-18 11:14:13,275 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 11:14:13,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-04-18 11:14:13,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-04-18 11:14:13,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-04-18 11:14:13,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-04-18 11:14:13,421 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-04-18 11:14:13,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:14:13,422 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-04-18 11:14:13,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 11:14:13,422 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-04-18 11:14:13,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 11:14:13,431 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:14:13,432 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:14:13,432 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:14:13,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:13,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-04-18 11:14:13,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:14:13,433 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [674828737] [2020-04-18 11:14:13,434 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:13,435 INFO L259 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-04-18 11:14:13,435 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-04-18 11:14:13,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 11:14:13,436 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:14:13,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:13,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 2 times [2020-04-18 11:14:13,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:13,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854375214] [2020-04-18 11:14:13,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:13,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:13,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854375214] [2020-04-18 11:14:13,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:13,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:14:13,630 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:13,631 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:13,632 INFO L259 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-04-18 11:14:13,632 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:13,644 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:14:13,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:14:13,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:14:13,645 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 4 states. [2020-04-18 11:14:13,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:13,661 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-04-18 11:14:13,661 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-04-18 11:14:13,661 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:14:13,662 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [674828737] [2020-04-18 11:14:13,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:14:13,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:14:13,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [674828737] [2020-04-18 11:14:13,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 11:14:13,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:14:13,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:14:13,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:14:13,664 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-04-18 11:14:13,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:13,691 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-04-18 11:14:13,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 11:14:13,692 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-18 11:14:13,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:14:13,698 INFO L225 Difference]: With dead ends: 778 [2020-04-18 11:14:13,698 INFO L226 Difference]: Without dead ends: 634 [2020-04-18 11:14:13,700 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:14:13,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-04-18 11:14:13,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-04-18 11:14:13,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-04-18 11:14:13,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-04-18 11:14:13,774 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-04-18 11:14:13,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:14:13,775 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-04-18 11:14:13,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 11:14:13,775 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-04-18 11:14:13,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 11:14:13,776 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:14:13,777 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:14:13,777 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:14:13,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:13,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-04-18 11:14:13,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:14:13,778 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [448889733] [2020-04-18 11:14:13,779 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:13,780 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 30 transitions. [2020-04-18 11:14:13,780 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-04-18 11:14:13,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 11:14:13,781 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:14:13,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:13,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 2 times [2020-04-18 11:14:13,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:13,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205814848] [2020-04-18 11:14:13,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:13,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:13,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205814848] [2020-04-18 11:14:13,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:13,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:14:13,840 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:13,841 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:13,843 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 26 transitions. [2020-04-18 11:14:13,843 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:13,854 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:14:13,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:14:13,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:14:13,855 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 4 states. [2020-04-18 11:14:13,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:13,866 INFO L93 Difference]: Finished difference Result 22 states and 30 transitions. [2020-04-18 11:14:13,866 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-04-18 11:14:13,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:14:13,867 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [448889733] [2020-04-18 11:14:13,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:14:13,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:14:13,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [448889733] [2020-04-18 11:14:13,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 11:14:13,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:14:13,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:14:13,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:14:13,869 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 4 states. [2020-04-18 11:14:13,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:13,897 INFO L93 Difference]: Finished difference Result 688 states and 2256 transitions. [2020-04-18 11:14:13,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 11:14:13,902 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-18 11:14:13,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:14:13,907 INFO L225 Difference]: With dead ends: 688 [2020-04-18 11:14:13,907 INFO L226 Difference]: Without dead ends: 580 [2020-04-18 11:14:13,908 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:14:13,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-04-18 11:14:13,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-04-18 11:14:13,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-04-18 11:14:13,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1932 transitions. [2020-04-18 11:14:13,928 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1932 transitions. Word has length 12 [2020-04-18 11:14:13,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:14:13,929 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 1932 transitions. [2020-04-18 11:14:13,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 11:14:13,929 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1932 transitions. [2020-04-18 11:14:13,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 11:14:13,930 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:14:13,930 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:14:13,931 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:14:13,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:13,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1718865431, now seen corresponding path program 1 times [2020-04-18 11:14:13,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:14:13,932 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1385744155] [2020-04-18 11:14:13,932 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:13,933 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 58 transitions. [2020-04-18 11:14:13,934 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-04-18 11:14:13,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 11:14:13,934 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:14:13,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:13,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1718865431, now seen corresponding path program 2 times [2020-04-18 11:14:13,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:13,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301011100] [2020-04-18 11:14:13,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:13,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:13,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301011100] [2020-04-18 11:14:13,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:14,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 11:14:14,000 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:14,001 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:14,005 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 44 transitions. [2020-04-18 11:14:14,005 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:14,166 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 11:14:14,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 11:14:14,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-04-18 11:14:14,167 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 8 states. [2020-04-18 11:14:14,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:14,193 INFO L93 Difference]: Finished difference Result 34 states and 58 transitions. [2020-04-18 11:14:14,193 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2020-04-18 11:14:14,194 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:14:14,194 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1385744155] [2020-04-18 11:14:14,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:14:14,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 11:14:14,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1385744155] [2020-04-18 11:14:14,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 11:14:14,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:14:14,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 11:14:14,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-04-18 11:14:14,196 INFO L87 Difference]: Start difference. First operand 580 states and 1932 transitions. Second operand 8 states. [2020-04-18 11:14:14,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:14,260 INFO L93 Difference]: Finished difference Result 751 states and 2457 transitions. [2020-04-18 11:14:14,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 11:14:14,261 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-04-18 11:14:14,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:14:14,264 INFO L225 Difference]: With dead ends: 751 [2020-04-18 11:14:14,264 INFO L226 Difference]: Without dead ends: 358 [2020-04-18 11:14:14,265 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-04-18 11:14:14,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-04-18 11:14:14,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-04-18 11:14:14,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-04-18 11:14:14,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1128 transitions. [2020-04-18 11:14:14,280 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1128 transitions. Word has length 13 [2020-04-18 11:14:14,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:14:14,280 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 1128 transitions. [2020-04-18 11:14:14,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 11:14:14,280 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1128 transitions. [2020-04-18 11:14:14,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 11:14:14,282 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:14:14,282 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:14:14,282 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:14:14,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:14,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1081404616, now seen corresponding path program 1 times [2020-04-18 11:14:14,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:14:14,283 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [748175893] [2020-04-18 11:14:14,284 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:14,286 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 102 transitions. [2020-04-18 11:14:14,286 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-04-18 11:14:14,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 11:14:14,287 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:14:14,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:14,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1745220586, now seen corresponding path program 2 times [2020-04-18 11:14:14,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:14,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553021083] [2020-04-18 11:14:14,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:14,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:14,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553021083] [2020-04-18 11:14:14,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:14,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:14:14,392 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:14,394 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:14,398 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 56 transitions. [2020-04-18 11:14:14,399 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:14,442 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 11:14:14,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 11:14:14,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-04-18 11:14:14,443 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 6 states. [2020-04-18 11:14:14,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:14,474 INFO L93 Difference]: Finished difference Result 50 states and 102 transitions. [2020-04-18 11:14:14,475 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 102 transitions. [2020-04-18 11:14:14,475 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:14:14,475 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [748175893] [2020-04-18 11:14:14,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:14:14,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 11:14:14,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [748175893] [2020-04-18 11:14:14,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 11:14:14,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:14:14,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 11:14:14,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 11:14:14,478 INFO L87 Difference]: Start difference. First operand 358 states and 1128 transitions. Second operand 6 states. [2020-04-18 11:14:14,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:14,535 INFO L93 Difference]: Finished difference Result 496 states and 1517 transitions. [2020-04-18 11:14:14,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 11:14:14,537 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-04-18 11:14:14,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:14:14,541 INFO L225 Difference]: With dead ends: 496 [2020-04-18 11:14:14,542 INFO L226 Difference]: Without dead ends: 262 [2020-04-18 11:14:14,542 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-04-18 11:14:14,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-04-18 11:14:14,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-04-18 11:14:14,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-04-18 11:14:14,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-04-18 11:14:14,559 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-04-18 11:14:14,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:14:14,559 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-04-18 11:14:14,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 11:14:14,559 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-04-18 11:14:14,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 11:14:14,560 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:14:14,560 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:14:14,561 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:14:14,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:14,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-04-18 11:14:14,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:14:14,565 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [471349307] [2020-04-18 11:14:14,566 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:14,570 INFO L259 McrAutomatonBuilder]: Finished intersection with 94 states and 240 transitions. [2020-04-18 11:14:14,572 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2020-04-18 11:14:14,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 11:14:14,573 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:14:14,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:14,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1852625697, now seen corresponding path program 2 times [2020-04-18 11:14:14,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:14,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186451436] [2020-04-18 11:14:14,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:14,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:14,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186451436] [2020-04-18 11:14:14,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:14,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:14:14,662 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:14,664 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:14,681 INFO L259 McrAutomatonBuilder]: Finished intersection with 48 states and 89 transitions. [2020-04-18 11:14:14,682 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:14,739 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 11:14:14,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 11:14:14,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-04-18 11:14:14,740 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 6 states. [2020-04-18 11:14:14,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:14,828 INFO L93 Difference]: Finished difference Result 118 states and 282 transitions. [2020-04-18 11:14:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 282 transitions. [2020-04-18 11:14:14,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 11:14:14,829 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:14:14,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:14,830 INFO L82 PathProgramCache]: Analyzing trace with hash -136660575, now seen corresponding path program 3 times [2020-04-18 11:14:14,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:14,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186563662] [2020-04-18 11:14:14,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:14,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:14,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186563662] [2020-04-18 11:14:14,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:14,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:14:14,915 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:14,917 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:14,925 INFO L259 McrAutomatonBuilder]: Finished intersection with 48 states and 89 transitions. [2020-04-18 11:14:14,925 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:15,066 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 11:14:15,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 11:14:15,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-04-18 11:14:15,067 INFO L87 Difference]: Start difference. First operand 118 states and 282 transitions. Second operand 8 states. [2020-04-18 11:14:15,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:15,153 INFO L93 Difference]: Finished difference Result 145 states and 324 transitions. [2020-04-18 11:14:15,153 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 324 transitions. [2020-04-18 11:14:15,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 11:14:15,154 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 11:14:15,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:15,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 4 times [2020-04-18 11:14:15,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:15,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962123989] [2020-04-18 11:14:15,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:15,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:15,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962123989] [2020-04-18 11:14:15,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:15,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 11:14:15,206 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:15,207 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:15,211 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 55 transitions. [2020-04-18 11:14:15,212 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:15,245 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 11:14:15,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:14:15,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2020-04-18 11:14:15,246 INFO L87 Difference]: Start difference. First operand 145 states and 324 transitions. Second operand 4 states. [2020-04-18 11:14:15,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:15,263 INFO L93 Difference]: Finished difference Result 145 states and 324 transitions. [2020-04-18 11:14:15,263 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 324 transitions. [2020-04-18 11:14:15,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:14:15,265 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [471349307] [2020-04-18 11:14:15,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:14:15,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 11:14:15,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [471349307] [2020-04-18 11:14:15,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 11:14:15,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:14:15,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 11:14:15,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2020-04-18 11:14:15,267 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 13 states. [2020-04-18 11:14:15,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:15,952 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-04-18 11:14:15,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-04-18 11:14:15,953 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-04-18 11:14:15,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:14:15,955 INFO L225 Difference]: With dead ends: 319 [2020-04-18 11:14:15,955 INFO L226 Difference]: Without dead ends: 238 [2020-04-18 11:14:15,956 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=449, Invalid=1621, Unknown=0, NotChecked=0, Total=2070 [2020-04-18 11:14:15,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-04-18 11:14:15,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-04-18 11:14:15,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-04-18 11:14:15,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-04-18 11:14:15,964 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-04-18 11:14:15,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:14:15,965 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-04-18 11:14:15,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 11:14:15,965 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-04-18 11:14:15,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 11:14:15,967 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:14:15,967 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:14:15,967 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:14:15,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:15,968 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-04-18 11:14:15,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:14:15,969 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [581846100] [2020-04-18 11:14:15,970 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:15,973 INFO L259 McrAutomatonBuilder]: Finished intersection with 138 states and 378 transitions. [2020-04-18 11:14:15,974 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2020-04-18 11:14:15,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 11:14:15,975 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:14:15,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:15,976 INFO L82 PathProgramCache]: Analyzing trace with hash -85600614, now seen corresponding path program 2 times [2020-04-18 11:14:15,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:15,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734661149] [2020-04-18 11:14:15,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:16,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:16,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734661149] [2020-04-18 11:14:16,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:16,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 11:14:16,051 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:16,053 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:16,060 INFO L259 McrAutomatonBuilder]: Finished intersection with 45 states and 78 transitions. [2020-04-18 11:14:16,060 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:16,252 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 11:14:16,350 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 11:14:16,443 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 9 times. [2020-04-18 11:14:16,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-04-18 11:14:16,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2020-04-18 11:14:16,443 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 14 states. [2020-04-18 11:14:16,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:16,819 INFO L93 Difference]: Finished difference Result 168 states and 437 transitions. [2020-04-18 11:14:16,820 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 437 transitions. [2020-04-18 11:14:16,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 11:14:16,821 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:14:16,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:16,822 INFO L82 PathProgramCache]: Analyzing trace with hash -466783372, now seen corresponding path program 3 times [2020-04-18 11:14:16,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:16,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328492008] [2020-04-18 11:14:16,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:16,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:16,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328492008] [2020-04-18 11:14:16,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:16,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 11:14:16,873 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:16,874 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:16,879 INFO L259 McrAutomatonBuilder]: Finished intersection with 31 states and 44 transitions. [2020-04-18 11:14:16,879 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:16,945 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 11:14:16,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 11:14:16,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2020-04-18 11:14:16,947 INFO L87 Difference]: Start difference. First operand 168 states and 437 transitions. Second operand 6 states. [2020-04-18 11:14:17,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:17,027 INFO L93 Difference]: Finished difference Result 230 states and 564 transitions. [2020-04-18 11:14:17,028 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 564 transitions. [2020-04-18 11:14:17,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 11:14:17,029 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 11:14:17,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:17,030 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 4 times [2020-04-18 11:14:17,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:17,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777550626] [2020-04-18 11:14:17,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:17,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:17,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777550626] [2020-04-18 11:14:17,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:17,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:14:17,099 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:17,101 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:17,107 INFO L259 McrAutomatonBuilder]: Finished intersection with 43 states and 74 transitions. [2020-04-18 11:14:17,107 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:17,311 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 11:14:17,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 11:14:17,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=736, Unknown=0, NotChecked=0, Total=930 [2020-04-18 11:14:17,312 INFO L87 Difference]: Start difference. First operand 230 states and 564 transitions. Second operand 7 states. [2020-04-18 11:14:17,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:17,361 INFO L93 Difference]: Finished difference Result 230 states and 564 transitions. [2020-04-18 11:14:17,361 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 564 transitions. [2020-04-18 11:14:17,362 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:14:17,363 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [581846100] [2020-04-18 11:14:17,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:14:17,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 11:14:17,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [581846100] [2020-04-18 11:14:17,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-04-18 11:14:17,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:14:17,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-04-18 11:14:17,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=848, Unknown=0, NotChecked=0, Total=1056 [2020-04-18 11:14:17,364 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 22 states. [2020-04-18 11:14:18,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:18,368 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-04-18 11:14:18,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-04-18 11:14:18,369 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 16 [2020-04-18 11:14:18,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:14:18,371 INFO L225 Difference]: With dead ends: 247 [2020-04-18 11:14:18,372 INFO L226 Difference]: Without dead ends: 182 [2020-04-18 11:14:18,373 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 806 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=578, Invalid=2728, Unknown=0, NotChecked=0, Total=3306 [2020-04-18 11:14:18,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-04-18 11:14:18,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-04-18 11:14:18,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-04-18 11:14:18,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-04-18 11:14:18,378 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-04-18 11:14:18,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:14:18,379 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-04-18 11:14:18,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-04-18 11:14:18,379 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-04-18 11:14:18,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 11:14:18,379 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:14:18,380 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:14:18,380 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:14:18,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:18,380 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-04-18 11:14:18,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:14:18,381 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [177874814] [2020-04-18 11:14:18,381 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:18,385 INFO L259 McrAutomatonBuilder]: Finished intersection with 186 states and 542 transitions. [2020-04-18 11:14:18,386 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-04-18 11:14:18,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 11:14:18,388 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:14:18,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:18,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1641348500, now seen corresponding path program 2 times [2020-04-18 11:14:18,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:18,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404765136] [2020-04-18 11:14:18,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:18,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:18,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404765136] [2020-04-18 11:14:18,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:18,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 11:14:18,461 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:18,462 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:18,468 INFO L259 McrAutomatonBuilder]: Finished intersection with 48 states and 83 transitions. [2020-04-18 11:14:18,468 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:18,672 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 11:14:18,781 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 11:14:18,864 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 9 times. [2020-04-18 11:14:18,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-04-18 11:14:18,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2020-04-18 11:14:18,864 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 14 states. [2020-04-18 11:14:19,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:19,417 INFO L93 Difference]: Finished difference Result 246 states and 690 transitions. [2020-04-18 11:14:19,417 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 690 transitions. [2020-04-18 11:14:19,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 11:14:19,418 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:14:19,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:19,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1585382406, now seen corresponding path program 3 times [2020-04-18 11:14:19,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:19,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202612002] [2020-04-18 11:14:19,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:19,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:19,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202612002] [2020-04-18 11:14:19,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:19,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:14:19,474 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:19,475 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:19,480 INFO L259 McrAutomatonBuilder]: Finished intersection with 35 states and 51 transitions. [2020-04-18 11:14:19,480 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:19,543 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 11:14:19,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 11:14:19,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2020-04-18 11:14:19,544 INFO L87 Difference]: Start difference. First operand 246 states and 690 transitions. Second operand 6 states. [2020-04-18 11:14:19,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:19,621 INFO L93 Difference]: Finished difference Result 342 states and 906 transitions. [2020-04-18 11:14:19,621 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 906 transitions. [2020-04-18 11:14:19,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 11:14:19,623 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 11:14:19,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:19,623 INFO L82 PathProgramCache]: Analyzing trace with hash -817315854, now seen corresponding path program 4 times [2020-04-18 11:14:19,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:19,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475497444] [2020-04-18 11:14:19,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:19,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:19,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475497444] [2020-04-18 11:14:19,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:19,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:14:19,686 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:19,687 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:19,693 INFO L259 McrAutomatonBuilder]: Finished intersection with 49 states and 86 transitions. [2020-04-18 11:14:19,694 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:19,896 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 11:14:19,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 11:14:19,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=790, Unknown=0, NotChecked=0, Total=992 [2020-04-18 11:14:19,897 INFO L87 Difference]: Start difference. First operand 342 states and 906 transitions. Second operand 7 states. [2020-04-18 11:14:19,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:19,989 INFO L93 Difference]: Finished difference Result 376 states and 951 transitions. [2020-04-18 11:14:19,989 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 951 transitions. [2020-04-18 11:14:19,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 11:14:19,990 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 11:14:19,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:19,991 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 5 times [2020-04-18 11:14:19,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:19,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002291835] [2020-04-18 11:14:19,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:20,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:20,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002291835] [2020-04-18 11:14:20,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:20,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 11:14:20,039 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:20,040 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:20,046 INFO L259 McrAutomatonBuilder]: Finished intersection with 45 states and 77 transitions. [2020-04-18 11:14:20,046 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:20,180 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times. [2020-04-18 11:14:20,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 11:14:20,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=958, Unknown=0, NotChecked=0, Total=1190 [2020-04-18 11:14:20,182 INFO L87 Difference]: Start difference. First operand 376 states and 951 transitions. Second operand 8 states. [2020-04-18 11:14:20,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:20,249 INFO L93 Difference]: Finished difference Result 376 states and 951 transitions. [2020-04-18 11:14:20,250 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 951 transitions. [2020-04-18 11:14:20,251 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:14:20,251 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [177874814] [2020-04-18 11:14:20,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:14:20,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 11:14:20,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [177874814] [2020-04-18 11:14:20,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-04-18 11:14:20,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:14:20,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-04-18 11:14:20,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1022, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 11:14:20,253 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 23 states. [2020-04-18 11:14:21,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:21,232 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-04-18 11:14:21,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-04-18 11:14:21,232 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 17 [2020-04-18 11:14:21,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:14:21,234 INFO L225 Difference]: With dead ends: 165 [2020-04-18 11:14:21,234 INFO L226 Difference]: Without dead ends: 132 [2020-04-18 11:14:21,236 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=572, Invalid=2850, Unknown=0, NotChecked=0, Total=3422 [2020-04-18 11:14:21,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-04-18 11:14:21,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-04-18 11:14:21,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-04-18 11:14:21,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-04-18 11:14:21,240 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-04-18 11:14:21,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:14:21,240 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-04-18 11:14:21,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-04-18 11:14:21,241 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-04-18 11:14:21,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 11:14:21,241 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:14:21,242 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:14:21,242 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:14:21,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:21,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-04-18 11:14:21,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:14:21,243 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [49587028] [2020-04-18 11:14:21,243 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:21,250 INFO L259 McrAutomatonBuilder]: Finished intersection with 354 states and 1134 transitions. [2020-04-18 11:14:21,252 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states. [2020-04-18 11:14:21,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 11:14:21,254 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:14:21,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:21,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1946502321, now seen corresponding path program 2 times [2020-04-18 11:14:21,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:21,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625515897] [2020-04-18 11:14:21,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:21,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:21,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625515897] [2020-04-18 11:14:21,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:21,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:14:21,310 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:21,312 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:21,322 INFO L259 McrAutomatonBuilder]: Finished intersection with 72 states and 147 transitions. [2020-04-18 11:14:21,322 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:21,395 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 11:14:21,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 11:14:21,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-04-18 11:14:21,396 INFO L87 Difference]: Start difference. First operand 354 states. Second operand 8 states. [2020-04-18 11:14:21,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:21,464 INFO L93 Difference]: Finished difference Result 474 states and 1460 transitions. [2020-04-18 11:14:21,464 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 1460 transitions. [2020-04-18 11:14:21,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 11:14:21,466 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:14:21,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:21,467 INFO L82 PathProgramCache]: Analyzing trace with hash -436496835, now seen corresponding path program 3 times [2020-04-18 11:14:21,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:21,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489990491] [2020-04-18 11:14:21,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:21,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:21,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489990491] [2020-04-18 11:14:21,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:21,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:14:21,541 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:21,543 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:21,550 INFO L259 McrAutomatonBuilder]: Finished intersection with 47 states and 77 transitions. [2020-04-18 11:14:21,550 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:21,602 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 11:14:21,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 11:14:21,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-04-18 11:14:21,603 INFO L87 Difference]: Start difference. First operand 474 states and 1460 transitions. Second operand 6 states. [2020-04-18 11:14:21,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:21,680 INFO L93 Difference]: Finished difference Result 762 states and 2300 transitions. [2020-04-18 11:14:21,681 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 2300 transitions. [2020-04-18 11:14:21,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 11:14:21,683 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 11:14:21,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:21,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1475870333, now seen corresponding path program 4 times [2020-04-18 11:14:21,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:21,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095164557] [2020-04-18 11:14:21,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:21,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:21,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095164557] [2020-04-18 11:14:21,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:21,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 11:14:21,747 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:21,749 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:21,758 INFO L259 McrAutomatonBuilder]: Finished intersection with 49 states and 81 transitions. [2020-04-18 11:14:21,758 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:21,948 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 11:14:21,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 11:14:21,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2020-04-18 11:14:21,948 INFO L87 Difference]: Start difference. First operand 762 states and 2300 transitions. Second operand 9 states. [2020-04-18 11:14:22,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:22,151 INFO L93 Difference]: Finished difference Result 782 states and 2320 transitions. [2020-04-18 11:14:22,152 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 2320 transitions. [2020-04-18 11:14:22,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 11:14:22,155 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 11:14:22,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:22,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 5 times [2020-04-18 11:14:22,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:22,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108659824] [2020-04-18 11:14:22,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:22,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:22,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108659824] [2020-04-18 11:14:22,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:22,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 11:14:22,210 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:22,212 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:22,219 INFO L259 McrAutomatonBuilder]: Finished intersection with 46 states and 75 transitions. [2020-04-18 11:14:22,220 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:22,344 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 6 times. [2020-04-18 11:14:22,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-18 11:14:22,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2020-04-18 11:14:22,345 INFO L87 Difference]: Start difference. First operand 782 states and 2320 transitions. Second operand 10 states. [2020-04-18 11:14:22,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:22,554 INFO L93 Difference]: Finished difference Result 782 states and 2320 transitions. [2020-04-18 11:14:22,555 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 2320 transitions. [2020-04-18 11:14:22,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:14:22,557 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [49587028] [2020-04-18 11:14:22,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:14:22,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 11:14:22,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [49587028] [2020-04-18 11:14:22,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-04-18 11:14:22,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:14:22,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-18 11:14:22,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=678, Unknown=0, NotChecked=0, Total=812 [2020-04-18 11:14:22,559 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 19 states. [2020-04-18 11:14:23,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:23,250 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-04-18 11:14:23,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-04-18 11:14:23,251 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 19 [2020-04-18 11:14:23,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:14:23,252 INFO L225 Difference]: With dead ends: 121 [2020-04-18 11:14:23,252 INFO L226 Difference]: Without dead ends: 112 [2020-04-18 11:14:23,254 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 72 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 729 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=553, Invalid=2203, Unknown=0, NotChecked=0, Total=2756 [2020-04-18 11:14:23,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-04-18 11:14:23,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-04-18 11:14:23,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-04-18 11:14:23,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-04-18 11:14:23,257 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-04-18 11:14:23,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:14:23,258 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-04-18 11:14:23,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-04-18 11:14:23,258 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-04-18 11:14:23,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 11:14:23,259 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:14:23,259 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:14:23,259 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:14:23,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:23,259 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-04-18 11:14:23,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:14:23,260 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1930962509] [2020-04-18 11:14:23,260 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:23,270 INFO L259 McrAutomatonBuilder]: Finished intersection with 706 states and 2442 transitions. [2020-04-18 11:14:23,275 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-04-18 11:14:23,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 11:14:23,278 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:14:23,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:23,278 INFO L82 PathProgramCache]: Analyzing trace with hash -736929817, now seen corresponding path program 2 times [2020-04-18 11:14:23,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:23,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835231115] [2020-04-18 11:14:23,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:23,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:23,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835231115] [2020-04-18 11:14:23,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:23,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:14:23,328 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:23,330 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:23,343 INFO L259 McrAutomatonBuilder]: Finished intersection with 89 states and 189 transitions. [2020-04-18 11:14:23,343 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:23,375 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 11:14:23,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 11:14:23,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-04-18 11:14:23,376 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 6 states. [2020-04-18 11:14:23,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:23,441 INFO L93 Difference]: Finished difference Result 1114 states and 3800 transitions. [2020-04-18 11:14:23,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 3800 transitions. [2020-04-18 11:14:23,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 11:14:23,444 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:14:23,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:23,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1583089753, now seen corresponding path program 3 times [2020-04-18 11:14:23,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:23,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682487925] [2020-04-18 11:14:23,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:23,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:23,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682487925] [2020-04-18 11:14:23,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:23,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:14:23,491 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:23,493 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:23,509 INFO L259 McrAutomatonBuilder]: Finished intersection with 111 states and 248 transitions. [2020-04-18 11:14:23,509 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:23,605 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 11:14:23,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 11:14:23,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-04-18 11:14:23,607 INFO L87 Difference]: Start difference. First operand 1114 states and 3800 transitions. Second operand 8 states. [2020-04-18 11:14:23,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:23,703 INFO L93 Difference]: Finished difference Result 1726 states and 5822 transitions. [2020-04-18 11:14:23,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 5822 transitions. [2020-04-18 11:14:23,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 11:14:23,707 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 11:14:23,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:23,707 INFO L82 PathProgramCache]: Analyzing trace with hash 971181767, now seen corresponding path program 4 times [2020-04-18 11:14:23,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:23,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159020466] [2020-04-18 11:14:23,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:23,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:23,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159020466] [2020-04-18 11:14:23,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:23,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 11:14:23,761 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:23,763 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:23,769 INFO L259 McrAutomatonBuilder]: Finished intersection with 51 states and 83 transitions. [2020-04-18 11:14:23,769 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:23,966 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 11:14:23,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 11:14:23,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2020-04-18 11:14:23,967 INFO L87 Difference]: Start difference. First operand 1726 states and 5822 transitions. Second operand 9 states. [2020-04-18 11:14:24,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:24,281 INFO L93 Difference]: Finished difference Result 1846 states and 6010 transitions. [2020-04-18 11:14:24,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 6010 transitions. [2020-04-18 11:14:24,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 11:14:24,285 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 11:14:24,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:24,286 INFO L82 PathProgramCache]: Analyzing trace with hash 188682519, now seen corresponding path program 5 times [2020-04-18 11:14:24,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:24,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596283444] [2020-04-18 11:14:24,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:24,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:24,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596283444] [2020-04-18 11:14:24,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:24,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 11:14:24,344 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:24,346 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:24,354 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 81 transitions. [2020-04-18 11:14:24,354 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:24,492 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 11:14:24,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 11:14:24,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=800, Unknown=0, NotChecked=0, Total=930 [2020-04-18 11:14:24,493 INFO L87 Difference]: Start difference. First operand 1846 states and 6010 transitions. Second operand 7 states. [2020-04-18 11:14:24,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:24,579 INFO L93 Difference]: Finished difference Result 3032 states and 9408 transitions. [2020-04-18 11:14:24,579 INFO L276 IsEmpty]: Start isEmpty. Operand 3032 states and 9408 transitions. [2020-04-18 11:14:24,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 11:14:24,586 INFO L105 Mcr]: ---- MCR iteration 4 ---- [2020-04-18 11:14:24,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:24,586 INFO L82 PathProgramCache]: Analyzing trace with hash 2121239349, now seen corresponding path program 6 times [2020-04-18 11:14:24,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:24,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360168344] [2020-04-18 11:14:24,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:24,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:24,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360168344] [2020-04-18 11:14:24,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:24,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 11:14:24,655 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:24,657 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:24,663 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 81 transitions. [2020-04-18 11:14:24,663 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:24,784 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 6 times. [2020-04-18 11:14:24,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-18 11:14:24,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=970, Unknown=0, NotChecked=0, Total=1122 [2020-04-18 11:14:24,785 INFO L87 Difference]: Start difference. First operand 3032 states and 9408 transitions. Second operand 10 states. [2020-04-18 11:14:25,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:25,098 INFO L93 Difference]: Finished difference Result 3056 states and 9424 transitions. [2020-04-18 11:14:25,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3056 states and 9424 transitions. [2020-04-18 11:14:25,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 11:14:25,104 INFO L105 Mcr]: ---- MCR iteration 5 ---- [2020-04-18 11:14:25,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:14:25,104 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 7 times [2020-04-18 11:14:25,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:14:25,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256889076] [2020-04-18 11:14:25,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:14:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:14:25,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:14:25,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256889076] [2020-04-18 11:14:25,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:14:25,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:14:25,159 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:14:25,160 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:14:25,164 INFO L259 McrAutomatonBuilder]: Finished intersection with 27 states and 31 transitions. [2020-04-18 11:14:25,164 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:14:25,209 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 11:14:25,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 11:14:25,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1169, Unknown=0, NotChecked=0, Total=1332 [2020-04-18 11:14:25,210 INFO L87 Difference]: Start difference. First operand 3056 states and 9424 transitions. Second operand 5 states. [2020-04-18 11:14:25,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:25,299 INFO L93 Difference]: Finished difference Result 4916 states and 14446 transitions. [2020-04-18 11:14:25,299 INFO L276 IsEmpty]: Start isEmpty. Operand 4916 states and 14446 transitions. [2020-04-18 11:14:25,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:14:25,306 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1930962509] [2020-04-18 11:14:25,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:14:25,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 11:14:25,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1930962509] [2020-04-18 11:14:25,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-04-18 11:14:25,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:14:25,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-04-18 11:14:25,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1309, Unknown=0, NotChecked=0, Total=1482 [2020-04-18 11:14:25,308 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 25 states. [2020-04-18 11:14:27,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:14:27,199 INFO L93 Difference]: Finished difference Result 179 states and 402 transitions. [2020-04-18 11:14:27,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-04-18 11:14:27,199 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 21 [2020-04-18 11:14:27,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:14:27,200 INFO L225 Difference]: With dead ends: 179 [2020-04-18 11:14:27,200 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 11:14:27,208 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 127 SyntacticMatches, 3 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2459 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1150, Invalid=7040, Unknown=0, NotChecked=0, Total=8190 [2020-04-18 11:14:27,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 11:14:27,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 11:14:27,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 11:14:27,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 11:14:27,209 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-04-18 11:14:27,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:14:27,210 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 11:14:27,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-04-18 11:14:27,210 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 11:14:27,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:14:27,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 11:14:27 BasicIcfg [2020-04-18 11:14:27,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 11:14:27,225 INFO L168 Benchmark]: Toolchain (without parser) took 18030.07 ms. Allocated memory was 137.9 MB in the beginning and 400.6 MB in the end (delta: 262.7 MB). Free memory was 101.1 MB in the beginning and 143.8 MB in the end (delta: -42.8 MB). Peak memory consumption was 219.9 MB. Max. memory is 7.1 GB. [2020-04-18 11:14:27,227 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-18 11:14:27,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 803.40 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 99.3 MB in the beginning and 154.8 MB in the end (delta: -55.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-04-18 11:14:27,236 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.79 ms. Allocated memory is still 200.3 MB. Free memory was 154.8 MB in the beginning and 152.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-04-18 11:14:27,237 INFO L168 Benchmark]: Boogie Preprocessor took 26.92 ms. Allocated memory is still 200.3 MB. Free memory was 152.1 MB in the beginning and 150.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 11:14:27,238 INFO L168 Benchmark]: RCFGBuilder took 568.66 ms. Allocated memory is still 200.3 MB. Free memory was 150.7 MB in the beginning and 126.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-04-18 11:14:27,244 INFO L168 Benchmark]: TraceAbstraction took 16539.16 ms. Allocated memory was 200.3 MB in the beginning and 400.6 MB in the end (delta: 200.3 MB). Free memory was 126.1 MB in the beginning and 143.8 MB in the end (delta: -17.8 MB). Peak memory consumption was 182.5 MB. Max. memory is 7.1 GB. [2020-04-18 11:14:27,247 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 803.40 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 99.3 MB in the beginning and 154.8 MB in the end (delta: -55.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.79 ms. Allocated memory is still 200.3 MB. Free memory was 154.8 MB in the beginning and 152.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.92 ms. Allocated memory is still 200.3 MB. Free memory was 152.1 MB in the beginning and 150.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 568.66 ms. Allocated memory is still 200.3 MB. Free memory was 150.7 MB in the beginning and 126.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16539.16 ms. Allocated memory was 200.3 MB in the beginning and 400.6 MB in the end (delta: 200.3 MB). Free memory was 126.1 MB in the beginning and 143.8 MB in the end (delta: -17.8 MB). Peak memory consumption was 182.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 93 ProgramPointsBefore, 39 ProgramPointsAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 945 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2807 CheckedPairsTotal, 63 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 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 222 SDtfs, 1042 SDslu, 1124 SDs, 0 SdLazy, 1790 SolverSat, 490 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 735 GetRequests, 404 SyntacticMatches, 12 SemanticMatches, 319 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5458 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...