/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/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:13:33,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:13:33,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:13:33,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:13:33,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:13:33,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:13:33,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:13:33,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:13:33,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:13:33,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:13:33,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:13:33,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:13:33,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:13:33,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:13:33,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:13:33,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:13:33,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:13:33,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:13:33,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:13:33,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:13:33,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:13:33,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:13:33,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:13:33,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:13:33,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:13:33,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:13:33,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:13:33,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:13:33,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:13:33,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:13:33,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:13:33,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:13:33,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:13:33,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:13:33,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:13:33,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:13:33,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:13:33,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:13:33,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:13:33,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:13:33,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:13:33,594 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:13:33,636 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:13:33,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:13:33,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:13:33,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:13:33,639 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:13:33,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:13:33,640 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:13:33,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:13:33,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:13:33,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:13:33,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:13:33,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:13:33,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:13:33,643 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:13:33,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:13:33,643 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:13:33,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:13:33,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:13:33,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:13:33,644 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:13:33,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:13:33,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:13:33,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:13:33,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:13:33,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:13:33,645 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:13:33,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:13:33,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:13:33,646 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:13:33,646 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:13:34,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:13:34,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:13:34,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:13:34,122 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:13:34,122 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:13:34,124 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-09-21 11:13:34,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f142ecfda/2ad74b46cba848bcaaa9ed8e0cd9c57d/FLAGa980f3652 [2020-09-21 11:13:34,777 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:13:34,778 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-09-21 11:13:34,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f142ecfda/2ad74b46cba848bcaaa9ed8e0cd9c57d/FLAGa980f3652 [2020-09-21 11:13:35,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f142ecfda/2ad74b46cba848bcaaa9ed8e0cd9c57d [2020-09-21 11:13:35,136 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:13:35,143 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:13:35,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:13:35,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:13:35,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:13:35,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:13:35" (1/1) ... [2020-09-21 11:13:35,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20a9c366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35, skipping insertion in model container [2020-09-21 11:13:35,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:13:35" (1/1) ... [2020-09-21 11:13:35,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:13:35,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:13:35,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:13:35,799 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:13:35,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:13:35,998 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:13:35,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35 WrapperNode [2020-09-21 11:13:35,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:13:36,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:13:36,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:13:36,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:13:36,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (1/1) ... [2020-09-21 11:13:36,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (1/1) ... [2020-09-21 11:13:36,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (1/1) ... [2020-09-21 11:13:36,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (1/1) ... [2020-09-21 11:13:36,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (1/1) ... [2020-09-21 11:13:36,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (1/1) ... [2020-09-21 11:13:36,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (1/1) ... [2020-09-21 11:13:36,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:13:36,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:13:36,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:13:36,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:13:36,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:13:36,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:13:36,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:13:36,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:13:36,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:13:36,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:13:36,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:13:36,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:13:36,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:13:36,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:13:36,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:13:36,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:13:36,191 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:13:36,191 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:13:36,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:13:36,192 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:13:36,193 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:13:36,193 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:13:36,193 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:13:36,193 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 11:13:36,194 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:13:36,194 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:13:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:13:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:13:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:13:36,196 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:13:36,197 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:13:36,197 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:13:36,197 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:13:36,198 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 11:13:36,198 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:13:36,198 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:13:36,198 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:13:36,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:13:36,199 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:13:36,199 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:13:36,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:13:36,199 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:13:36,199 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:13:36,199 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:13:36,199 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:13:36,199 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:13:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:13:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:13:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:13:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:13:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:13:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:13:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:13:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:13:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:13:36,201 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:13:36,201 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:13:36,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:13:36,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:13:36,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:13:36,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:13:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:13:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:13:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:13:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:13:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:13:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:13:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:13:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:13:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:13:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:13:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:13:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:13:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:13:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:13:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:13:36,204 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:13:36,204 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:13:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:13:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:13:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:13:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:13:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:13:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:13:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:13:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:13:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:13:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:13:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:13:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:13:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 11:13:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:13:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:13:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:13:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 11:13:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:13:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:13:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:13:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:13:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:13:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:13:37,267 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:13:37,268 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:13:37,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:13:37 BoogieIcfgContainer [2020-09-21 11:13:37,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:13:37,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:13:37,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:13:37,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:13:37,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:13:35" (1/3) ... [2020-09-21 11:13:37,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90763f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:13:37, skipping insertion in model container [2020-09-21 11:13:37,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (2/3) ... [2020-09-21 11:13:37,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90763f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:13:37, skipping insertion in model container [2020-09-21 11:13:37,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:13:37" (3/3) ... [2020-09-21 11:13:37,289 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2020-09-21 11:13:37,302 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:13:37,314 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:13:37,337 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:13:37,364 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:13:37,364 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:13:37,364 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:13:37,365 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:13:37,365 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:13:37,365 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:13:37,365 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:13:37,365 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:13:37,394 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-09-21 11:13:37,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:13:37,407 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:37,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:37,409 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:37,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:37,418 INFO L82 PathProgramCache]: Analyzing trace with hash 267821041, now seen corresponding path program 1 times [2020-09-21 11:13:37,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:37,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441148350] [2020-09-21 11:13:37,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:37,747 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:37,748 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:37,748 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:37,749 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:37,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:13:37,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:37,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:13:37,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:37,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:37,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:13:37,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:37,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:38,248 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:38,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:38,269 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:38,270 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:38,270 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:38,270 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:38,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:38,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:38,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:38,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:38,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:38,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:38,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:38,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:38,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:38,358 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:38,358 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:38,359 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:38,359 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:38,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:38,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:38,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:38,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:38,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:38,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:38,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:38,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:38,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:38,365 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:38,366 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:38,366 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:38,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:38,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:38,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:38,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:38,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:38,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:38,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:38,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:38,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:38,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:38,373 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:38,373 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:38,373 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:38,373 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:38,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:38,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:38,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:38,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:38,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:38,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:38,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:38,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:38,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:38,380 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:38,380 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:38,381 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:38,381 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:38,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:38,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:38,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:38,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:38,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:38,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:38,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:38,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:38,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:13:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:38,387 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:38,387 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:38,388 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:38,388 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:38,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:38,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:38,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:38,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:38,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:38,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:38,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:38,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:38,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:13:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:38,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:38,395 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:38,395 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:38,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:38,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:38,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:38,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:38,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:38,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:38,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:38,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:38,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:38,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441148350] [2020-09-21 11:13:38,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:38,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:13:38,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364905048] [2020-09-21 11:13:38,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:13:38,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:38,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:13:38,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:13:38,443 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 3 states. [2020-09-21 11:13:39,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:39,739 INFO L93 Difference]: Finished difference Result 332 states and 431 transitions. [2020-09-21 11:13:39,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:13:39,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:13:39,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:39,763 INFO L225 Difference]: With dead ends: 332 [2020-09-21 11:13:39,766 INFO L226 Difference]: Without dead ends: 180 [2020-09-21 11:13:39,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:13:39,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-09-21 11:13:39,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 143. [2020-09-21 11:13:39,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-09-21 11:13:39,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2020-09-21 11:13:39,921 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 46 [2020-09-21 11:13:39,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:39,922 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2020-09-21 11:13:39,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:13:39,923 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2020-09-21 11:13:39,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:13:39,928 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:39,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:39,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:13:39,929 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:39,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:39,930 INFO L82 PathProgramCache]: Analyzing trace with hash -395653053, now seen corresponding path program 1 times [2020-09-21 11:13:39,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:39,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095203094] [2020-09-21 11:13:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,042 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,043 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,043 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,043 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:13:40,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:40,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:40,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:13:40,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:40,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,373 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:40,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,383 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:40,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,422 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,423 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,423 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,423 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:40,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,428 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,428 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,428 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,428 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:40,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,433 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,433 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,434 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,434 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:40,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,439 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,439 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,439 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,439 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:40,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,444 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,444 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,444 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,445 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:40,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:40,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,450 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,450 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,450 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:40,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:40,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:40,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095203094] [2020-09-21 11:13:40,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:40,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:13:40,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069048932] [2020-09-21 11:13:40,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:13:40,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:40,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:13:40,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:13:40,463 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 4 states. [2020-09-21 11:13:41,016 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:42,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:42,120 INFO L93 Difference]: Finished difference Result 255 states and 310 transitions. [2020-09-21 11:13:42,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:13:42,121 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:13:42,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:42,125 INFO L225 Difference]: With dead ends: 255 [2020-09-21 11:13:42,125 INFO L226 Difference]: Without dead ends: 164 [2020-09-21 11:13:42,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:13:42,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-09-21 11:13:42,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 134. [2020-09-21 11:13:42,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-09-21 11:13:42,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2020-09-21 11:13:42,171 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 47 [2020-09-21 11:13:42,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:42,172 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2020-09-21 11:13:42,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:13:42,172 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2020-09-21 11:13:42,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:13:42,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:42,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:42,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:13:42,175 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:42,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:42,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1814461049, now seen corresponding path program 1 times [2020-09-21 11:13:42,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:42,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047360894] [2020-09-21 11:13:42,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,510 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,510 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,510 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,510 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 11:13:42,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-21 11:13:42,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:13:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 11:13:42,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,804 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:42,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,874 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,875 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,875 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,875 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:42,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 11:13:42,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:42,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:42,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,920 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,921 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,921 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,921 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:42,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:42,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,927 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,927 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,927 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,927 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:42,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:42,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:42,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,934 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,935 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,935 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,935 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:42,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:42,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:42,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:42,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:42,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,944 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,945 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,945 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,946 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:42,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:42,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:42,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:42,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:13:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,953 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,953 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,953 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,953 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:42,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:42,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:42,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:42,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:13:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,960 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,960 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:42,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:42,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:42,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:42,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:42,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047360894] [2020-09-21 11:13:42,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:42,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:13:42,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517324985] [2020-09-21 11:13:42,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:13:42,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:42,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:13:42,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:13:42,972 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand 4 states. [2020-09-21 11:13:43,342 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:45,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:45,069 INFO L93 Difference]: Finished difference Result 398 states and 488 transitions. [2020-09-21 11:13:45,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:13:45,070 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-09-21 11:13:45,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:45,075 INFO L225 Difference]: With dead ends: 398 [2020-09-21 11:13:45,075 INFO L226 Difference]: Without dead ends: 288 [2020-09-21 11:13:45,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:13:45,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-09-21 11:13:45,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 234. [2020-09-21 11:13:45,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-21 11:13:45,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 279 transitions. [2020-09-21 11:13:45,143 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 279 transitions. Word has length 52 [2020-09-21 11:13:45,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:45,144 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 279 transitions. [2020-09-21 11:13:45,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:13:45,144 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 279 transitions. [2020-09-21 11:13:45,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:13:45,147 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:45,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:45,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:13:45,147 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:45,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:45,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1060505325, now seen corresponding path program 1 times [2020-09-21 11:13:45,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:45,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552503905] [2020-09-21 11:13:45,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,595 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:45,596 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,596 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,596 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:13:45,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-09-21 11:13:45,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:45,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:45,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:13:45,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:46,136 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:46,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,216 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,216 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,216 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:46,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 11:13:46,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:46,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:46,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:46,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:46,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,258 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,259 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,259 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,259 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:46,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:46,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:46,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:46,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:46,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:46,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,266 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,266 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,266 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,267 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:46,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:46,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:46,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:46,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:46,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:46,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,275 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,275 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,276 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,276 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:46,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:46,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:46,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:46,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:46,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:46,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,282 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,282 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,282 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,282 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:46,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:46,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:46,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:46,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:46,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,305 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,306 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,306 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,306 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:46,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:46,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:46,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:46,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:46,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:46,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:13:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,316 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,317 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,317 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,317 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:46,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:46,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:46,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:46,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:46,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:46,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:13:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,339 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,339 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,340 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,340 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:46,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:46,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:46,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:46,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:46,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:46,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:46,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552503905] [2020-09-21 11:13:46,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:46,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:13:46,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060747675] [2020-09-21 11:13:46,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:13:46,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:46,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:13:46,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:13:46,359 INFO L87 Difference]: Start difference. First operand 234 states and 279 transitions. Second operand 8 states. [2020-09-21 11:13:46,855 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:47,937 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:48,344 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:48,708 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:49,060 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:50,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:50,516 INFO L93 Difference]: Finished difference Result 729 states and 946 transitions. [2020-09-21 11:13:50,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:50,517 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-09-21 11:13:50,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:50,528 INFO L225 Difference]: With dead ends: 729 [2020-09-21 11:13:50,529 INFO L226 Difference]: Without dead ends: 519 [2020-09-21 11:13:50,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:50,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2020-09-21 11:13:50,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 451. [2020-09-21 11:13:50,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-09-21 11:13:50,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 547 transitions. [2020-09-21 11:13:50,673 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 547 transitions. Word has length 57 [2020-09-21 11:13:50,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:50,674 INFO L479 AbstractCegarLoop]: Abstraction has 451 states and 547 transitions. [2020-09-21 11:13:50,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:50,674 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 547 transitions. [2020-09-21 11:13:50,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 11:13:50,678 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:50,678 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:50,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:13:50,678 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:50,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:50,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1254258393, now seen corresponding path program 1 times [2020-09-21 11:13:50,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:50,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811181212] [2020-09-21 11:13:50,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:51,093 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:51,094 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:51,094 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:51,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:51,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 11:13:51,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:51,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-09-21 11:13:51,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:13:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:51,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:13:51,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:51,367 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:51,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:51,456 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:51,456 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:51,457 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:51,457 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:51,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:51,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:51,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-21 11:13:51,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:51,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:51,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:51,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:51,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:51,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:51,502 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:51,502 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:51,503 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:51,503 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:51,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:51,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:51,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:51,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:51,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:51,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:51,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:51,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:51,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:51,510 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:51,511 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:51,511 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:51,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:51,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:51,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:51,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:51,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:51,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:51,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:51,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:51,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:51,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:51,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:51,520 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:51,521 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:51,521 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:51,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:51,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:51,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:51,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:51,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:51,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:51,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:51,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:51,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:51,528 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:51,529 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:51,529 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:51,529 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:51,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:51,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:51,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:51,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:51,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:51,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:51,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:51,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:51,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:51,553 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:51,553 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:51,554 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:51,554 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:51,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:51,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:51,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:51,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:51,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:51,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:51,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:51,571 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:51,574 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:51,574 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:51,574 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:51,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:51,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:51,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:51,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:51,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:51,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:51,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:51,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:51,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:13:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:51,581 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:51,581 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:51,582 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:51,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:51,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:51,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:51,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:51,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:51,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:51,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:51,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:51,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:51,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:13:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:51,589 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:51,589 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:51,590 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:51,590 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:51,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:51,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:51,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:51,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:51,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:51,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:51,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:51,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:51,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:51,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811181212] [2020-09-21 11:13:51,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:51,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:13:51,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823633459] [2020-09-21 11:13:51,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:13:51,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:51,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:13:51,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:13:51,618 INFO L87 Difference]: Start difference. First operand 451 states and 547 transitions. Second operand 6 states. [2020-09-21 11:13:52,105 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:54,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:54,228 INFO L93 Difference]: Finished difference Result 1151 states and 1479 transitions. [2020-09-21 11:13:54,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:54,228 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-09-21 11:13:54,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:54,234 INFO L225 Difference]: With dead ends: 1151 [2020-09-21 11:13:54,234 INFO L226 Difference]: Without dead ends: 724 [2020-09-21 11:13:54,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:13:54,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2020-09-21 11:13:54,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 655. [2020-09-21 11:13:54,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2020-09-21 11:13:54,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 786 transitions. [2020-09-21 11:13:54,347 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 786 transitions. Word has length 61 [2020-09-21 11:13:54,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:54,347 INFO L479 AbstractCegarLoop]: Abstraction has 655 states and 786 transitions. [2020-09-21 11:13:54,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:13:54,348 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 786 transitions. [2020-09-21 11:13:54,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 11:13:54,349 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:54,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:54,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:13:54,350 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:54,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:54,351 INFO L82 PathProgramCache]: Analyzing trace with hash -863665095, now seen corresponding path program 1 times [2020-09-21 11:13:54,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:54,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832612225] [2020-09-21 11:13:54,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:54,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,797 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,798 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,798 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,798 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 11:13:54,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 405 [2020-09-21 11:13:54,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 11:13:54,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:54,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 11:13:54,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,162 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:55,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,218 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,219 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,219 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,219 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:55,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 11:13:55,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:55,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:55,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:55,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,254 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,254 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,255 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,255 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:55,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:55,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:55,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:55,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:55,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,262 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,262 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,262 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,262 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:55,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:55,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:55,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:55,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:55,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,268 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,269 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,269 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,269 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:55,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:55,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:55,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:55,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:55,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,275 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,276 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,276 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,276 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:55,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:55,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:55,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:55,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:55,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,299 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,299 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,299 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:55,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:55,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:55,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:55,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:55,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:13:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,365 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,365 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,365 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:55,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:55,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:55,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:55,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:55,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:13:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,376 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,377 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,377 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,377 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:55,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:55,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:55,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:55,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:55,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:13:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,399 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,399 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,399 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,399 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:55,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:55,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:55,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:55,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:55,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:55,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:55,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832612225] [2020-09-21 11:13:55,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:55,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 11:13:55,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566564133] [2020-09-21 11:13:55,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:13:55,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:55,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:13:55,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:13:55,417 INFO L87 Difference]: Start difference. First operand 655 states and 786 transitions. Second operand 11 states. [2020-09-21 11:13:55,932 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:56,652 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:57,318 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:57,796 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:58,159 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:58,494 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:00,241 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:00,830 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 187 [2020-09-21 11:14:02,808 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-21 11:14:03,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:03,825 INFO L93 Difference]: Finished difference Result 1959 states and 2470 transitions. [2020-09-21 11:14:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-21 11:14:03,826 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 61 [2020-09-21 11:14:03,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:03,838 INFO L225 Difference]: With dead ends: 1959 [2020-09-21 11:14:03,839 INFO L226 Difference]: Without dead ends: 1573 [2020-09-21 11:14:03,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=193, Invalid=677, Unknown=0, NotChecked=0, Total=870 [2020-09-21 11:14:03,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2020-09-21 11:14:04,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1463. [2020-09-21 11:14:04,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1463 states. [2020-09-21 11:14:04,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1733 transitions. [2020-09-21 11:14:04,134 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1733 transitions. Word has length 61 [2020-09-21 11:14:04,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:04,136 INFO L479 AbstractCegarLoop]: Abstraction has 1463 states and 1733 transitions. [2020-09-21 11:14:04,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:14:04,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1733 transitions. [2020-09-21 11:14:04,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-21 11:14:04,142 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:04,143 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:04,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:14:04,144 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:04,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:04,144 INFO L82 PathProgramCache]: Analyzing trace with hash 98669811, now seen corresponding path program 1 times [2020-09-21 11:14:04,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:04,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265363468] [2020-09-21 11:14:04,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,196 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,196 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,196 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,197 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-09-21 11:14:04,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:04,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:04,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-21 11:14:04,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:14:04,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,483 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:04,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,493 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,493 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,493 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,524 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,525 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,525 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,525 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:04,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,529 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,529 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,529 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,530 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:04,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,533 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,534 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,534 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,534 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,538 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:04,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:14:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:04,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:04,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:14:04,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:14:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,584 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,584 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,584 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-21 11:14:04,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:04,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:04,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:14:04,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:04,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,658 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,658 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,658 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,658 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:04,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:14:04,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:04,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:14:04,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:04,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,692 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,692 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,692 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,692 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:14:04,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:14:04,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:04,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:14:04,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:04,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,738 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,738 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:04,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:04,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:04,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:14:04,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,777 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,777 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,777 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,777 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:04,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,784 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,784 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,784 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,785 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:14:04,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:14:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,791 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,791 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,791 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,791 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:04,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,797 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,797 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,797 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,797 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,803 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:14:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,812 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,813 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,813 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,813 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:04,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:14:04,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,818 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,818 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,818 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,819 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-21 11:14:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,840 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,840 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,840 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,841 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:04,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-21 11:14:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,845 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,846 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,846 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,846 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:04,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-21 11:14:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,851 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,851 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,851 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,852 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:04,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,877 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:14:04,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265363468] [2020-09-21 11:14:04,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:04,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 11:14:04,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547646572] [2020-09-21 11:14:04,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:14:04,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:04,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:14:04,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:14:04,880 INFO L87 Difference]: Start difference. First operand 1463 states and 1733 transitions. Second operand 12 states. [2020-09-21 11:14:05,900 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:06,477 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:06,816 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:14:07,162 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:07,484 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:14:10,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:10,153 INFO L93 Difference]: Finished difference Result 2549 states and 3158 transitions. [2020-09-21 11:14:10,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-21 11:14:10,154 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 128 [2020-09-21 11:14:10,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:10,162 INFO L225 Difference]: With dead ends: 2549 [2020-09-21 11:14:10,163 INFO L226 Difference]: Without dead ends: 1110 [2020-09-21 11:14:10,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:14:10,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2020-09-21 11:14:10,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 970. [2020-09-21 11:14:10,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-09-21 11:14:10,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1129 transitions. [2020-09-21 11:14:10,357 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1129 transitions. Word has length 128 [2020-09-21 11:14:10,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:10,357 INFO L479 AbstractCegarLoop]: Abstraction has 970 states and 1129 transitions. [2020-09-21 11:14:10,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:14:10,357 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1129 transitions. [2020-09-21 11:14:10,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-21 11:14:10,362 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:10,363 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:10,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:14:10,363 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:10,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:10,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1804293722, now seen corresponding path program 1 times [2020-09-21 11:14:10,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:10,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664683298] [2020-09-21 11:14:10,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,473 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:14:10,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -49 [2020-09-21 11:14:10,474 FATAL L256 erpolLogProxyWrapper]: Difference in width: 49 [2020-09-21 11:14:10,474 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-21 11:14:10,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:14:10,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:10,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-21 11:14:10,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:10,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,726 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:10,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,736 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,736 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,768 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,769 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,769 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,769 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:10,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,773 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,774 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,774 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,774 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:10,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,778 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,779 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,779 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:10,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:10,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:14:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,806 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,806 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,806 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,806 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-21 11:14:10,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:10,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:10,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-21 11:14:10,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:10,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,828 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,828 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,829 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:10,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:10,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:10,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:14:10,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:10,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,845 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,846 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,846 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,846 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:14:10,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:10,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:10,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:14:10,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:10,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,858 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,858 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,859 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,859 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:10,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:10,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:10,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:14:10,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:10,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,884 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,884 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,885 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:10,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:10,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:14:10,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:10,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,906 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,907 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,907 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:14:10,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:14:10,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,913 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,914 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,914 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,914 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:10,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,921 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,921 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,921 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,921 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,926 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,927 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,927 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,927 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:14:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,936 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,936 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,937 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,937 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:10,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:14:10,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,942 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,942 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,942 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,942 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-21 11:14:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,960 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,961 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,961 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:10,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-21 11:14:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,966 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,967 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,967 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,967 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:14:10,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:14:10,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,979 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,979 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,979 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,980 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:10,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:10,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,985 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,986 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,986 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:14:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,993 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,993 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,994 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,994 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-21 11:14:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,999 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,999 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,999 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,999 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:11,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:11,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:11,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:11,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:11,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:11,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:11,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:11,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:11,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-21 11:14:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:11,004 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:11,004 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:11,004 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:11,004 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:11,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:11,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:11,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:11,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:11,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:11,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:11,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:11,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:11,026 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-21 11:14:11,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664683298] [2020-09-21 11:14:11,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:11,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:14:11,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084582807] [2020-09-21 11:14:11,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:14:11,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:11,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:14:11,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:14:11,033 INFO L87 Difference]: Start difference. First operand 970 states and 1129 transitions. Second operand 9 states. [2020-09-21 11:14:12,055 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:12,362 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:12,661 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:13,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:13,852 INFO L93 Difference]: Finished difference Result 1847 states and 2223 transitions. [2020-09-21 11:14:13,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:14:13,856 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 143 [2020-09-21 11:14:13,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:13,862 INFO L225 Difference]: With dead ends: 1847 [2020-09-21 11:14:13,862 INFO L226 Difference]: Without dead ends: 901 [2020-09-21 11:14:13,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:14:13,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2020-09-21 11:14:13,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 838. [2020-09-21 11:14:13,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-09-21 11:14:13,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 969 transitions. [2020-09-21 11:14:14,000 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 969 transitions. Word has length 143 [2020-09-21 11:14:14,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:14,000 INFO L479 AbstractCegarLoop]: Abstraction has 838 states and 969 transitions. [2020-09-21 11:14:14,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:14:14,000 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 969 transitions. [2020-09-21 11:14:14,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-09-21 11:14:14,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:14,003 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:14,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:14:14,004 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:14,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:14,004 INFO L82 PathProgramCache]: Analyzing trace with hash -401491891, now seen corresponding path program 1 times [2020-09-21 11:14:14,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:14,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7047524] [2020-09-21 11:14:14,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,469 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,470 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,470 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,470 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-21 11:14:14,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 410 [2020-09-21 11:14:14,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:14:14,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:14,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-09-21 11:14:14,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,763 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:14,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,829 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,829 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,829 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 11:14:14,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:14,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:14:14,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,868 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,868 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,868 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,869 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:14,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:14,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:14,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:14,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,873 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,873 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,873 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:14,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:14,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:14,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,879 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,879 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,880 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,880 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:14,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:14,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:14,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,885 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,885 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,885 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:14,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:14,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:14,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,896 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,897 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,897 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:14,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:14:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,928 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,929 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,929 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,929 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-21 11:14:14,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:14:14,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:14:14,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:14:14,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:14,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,986 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,986 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,986 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,987 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:14,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:14:14,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:14:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:14:14,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:14,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:15,016 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:15,016 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:15,016 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:15,016 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:15,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:14:15,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:15,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:14:15,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:15,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:14:15,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:15,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-21 11:14:15,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:15,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:15,032 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:15,033 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:15,033 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:15,033 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:15,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:15,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:15,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:15,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:15,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:15,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:15,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:15,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:15,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:15,037 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:15,037 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:15,038 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:15,038 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:15,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:15,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:15,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:15,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:15,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:15,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:15,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:15,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:15,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:15,055 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:15,056 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:15,056 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:15,056 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:15,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:14:15,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:15,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:14:15,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:14:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:15,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:14:15,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:15,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:15,104 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:15,105 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:15,105 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:15,105 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:15,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:15,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:15,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:15,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:15,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:15,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:15,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:14:15,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:15,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:15,169 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:15,169 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:15,170 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:15,170 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:15,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:15,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:15,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:15,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:15,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:14:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:15,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:15,188 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:15,189 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:15,189 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:15,189 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:15,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:15,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:15,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:15,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:15,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:15,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:14:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:15,199 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:15,199 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:15,199 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:15,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:15,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:15,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:15,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:15,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:15,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:15,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:15,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:14:15,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:15,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:15,205 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:15,206 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:15,206 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:15,206 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:15,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:15,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:15,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:15,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:15,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:15,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-21 11:14:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:15,214 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:15,214 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:15,215 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:15,215 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:15,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:15,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:15,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:15,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:15,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:15,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:15,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:15,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:15,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-21 11:14:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:15,231 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:15,231 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:15,231 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:15,232 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:15,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:14:15,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:15,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:14:15,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:15,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:14:15,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:14:15,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:14:15,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:15,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:15,315 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:15,315 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:15,315 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:15,316 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:15,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:15,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:15,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:15,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:14:15,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:15,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:15,400 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:15,400 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:15,401 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:15,401 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:15,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:15,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:15,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:15,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:15,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:14:15,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:15,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:15,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:15,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:14:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:15,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:15,407 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:15,407 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:15,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:15,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:15,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:15,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:15,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:15,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:15,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:15,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:15,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:15,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-21 11:14:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:15,416 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:15,416 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:15,416 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:15,416 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:15,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:15,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:15,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:15,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:15,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:15,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:15,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:15,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:15,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-21 11:14:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:15,422 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:15,423 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:15,423 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:15,423 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:15,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:15,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:15,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:15,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:15,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:15,464 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-21 11:14:15,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7047524] [2020-09-21 11:14:15,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:15,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-21 11:14:15,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956441444] [2020-09-21 11:14:15,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-21 11:14:15,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:15,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-21 11:14:15,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:14:15,466 INFO L87 Difference]: Start difference. First operand 838 states and 969 transitions. Second operand 17 states. [2020-09-21 11:14:15,980 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:16,929 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:18,727 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:19,141 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:19,747 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-21 11:14:20,042 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:14:20,400 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:14:20,793 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-21 11:14:21,462 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 193 [2020-09-21 11:14:22,116 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 193 [2020-09-21 11:14:23,326 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-21 11:14:23,908 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 11:14:24,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:24,955 INFO L93 Difference]: Finished difference Result 2509 states and 2997 transitions. [2020-09-21 11:14:24,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 11:14:24,956 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 147 [2020-09-21 11:14:24,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:24,966 INFO L225 Difference]: With dead ends: 2509 [2020-09-21 11:14:24,966 INFO L226 Difference]: Without dead ends: 1695 [2020-09-21 11:14:24,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=281, Invalid=979, Unknown=0, NotChecked=0, Total=1260 [2020-09-21 11:14:24,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2020-09-21 11:14:25,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1599. [2020-09-21 11:14:25,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1599 states. [2020-09-21 11:14:25,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1599 states to 1599 states and 1825 transitions. [2020-09-21 11:14:25,321 INFO L78 Accepts]: Start accepts. Automaton has 1599 states and 1825 transitions. Word has length 147 [2020-09-21 11:14:25,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:25,322 INFO L479 AbstractCegarLoop]: Abstraction has 1599 states and 1825 transitions. [2020-09-21 11:14:25,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-21 11:14:25,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1599 states and 1825 transitions. [2020-09-21 11:14:25,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-21 11:14:25,329 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:25,330 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:25,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:14:25,330 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:25,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:25,331 INFO L82 PathProgramCache]: Analyzing trace with hash 628739049, now seen corresponding path program 1 times [2020-09-21 11:14:25,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:25,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256533860] [2020-09-21 11:14:25,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,407 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,408 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-21 11:14:25,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:25,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:25,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-21 11:14:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:14:25,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:25,747 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:25,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,762 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,762 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,763 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:25,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:25,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,797 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,798 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,798 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,798 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:25,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:25,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,805 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,806 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,806 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,807 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:25,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:25,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:25,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,818 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,818 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,818 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,818 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:25,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:25,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:14:25,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,826 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,826 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:25,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,845 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,846 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,846 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,847 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:25,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:25,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:14:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,876 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,877 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,877 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,877 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-21 11:14:25,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:25,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,909 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,909 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,909 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:25,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:25,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,921 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,922 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,922 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,922 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:14:25,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:25,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,935 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,935 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,936 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,936 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:25,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,941 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,941 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,941 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,942 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:25,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,960 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,961 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,961 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:14:25,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,969 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,969 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,969 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,970 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:25,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:25,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,977 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,977 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,977 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,978 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:25,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:25,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,985 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,985 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:25,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:25,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:14:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,996 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,997 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,997 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,998 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:25,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:26,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:26,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:26,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:26,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:26,004 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:26,005 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:26,005 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:26,005 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:26,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:26,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:26,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:26,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:26,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:26,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:26,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 11:14:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:26,033 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:26,033 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:26,033 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:26,034 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:26,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:26,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:26,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:26,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:26,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:26,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:26,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:26,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:26,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-21 11:14:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:26,039 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:26,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:26,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:26,040 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:26,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:26,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:26,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:26,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:26,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:26,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:26,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:26,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:26,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-21 11:14:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:26,050 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:26,050 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:26,050 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:26,051 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:26,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:14:26,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:26,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:26,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:26,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:26,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:26,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 11:14:26,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:26,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:26,060 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:26,060 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:26,061 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:26,061 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:26,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:26,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:26,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:26,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:26,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:26,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:26,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:26,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:26,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:26,067 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:26,067 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:26,068 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:26,068 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:26,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:26,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:26,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:26,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:26,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:26,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:26,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:26,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:26,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:14:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:26,074 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:26,074 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:26,074 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:26,075 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:26,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:26,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:26,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:26,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:14:26,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:26,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-21 11:14:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:26,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:26,082 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:26,082 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:26,083 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:26,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:26,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:26,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:26,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:26,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:26,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:26,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:26,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:26,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-21 11:14:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:26,093 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:26,094 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:26,094 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:26,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:26,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:26,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:26,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:26,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:26,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:26,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:26,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:26,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:26,167 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-21 11:14:26,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256533860] [2020-09-21 11:14:26,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:26,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 11:14:26,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083496488] [2020-09-21 11:14:26,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:14:26,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:26,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:14:26,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:14:26,171 INFO L87 Difference]: Start difference. First operand 1599 states and 1825 transitions. Second operand 11 states. [2020-09-21 11:14:26,807 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 187