/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 --rcfgbuilder.size.of.a.code.block SingleStatement --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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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_spec1_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:56:28,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:56:28,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:56:28,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:56:28,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:56:28,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:56:28,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:56:28,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:56:28,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:56:28,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:56:28,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:56:28,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:56:28,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:56:28,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:56:28,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:56:28,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:56:28,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:56:28,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:56:28,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:56:28,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:56:28,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:56:28,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:56:28,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:56:28,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:56:28,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:56:28,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:56:28,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:56:28,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:56:28,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:56:28,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:56:28,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:56:28,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:56:28,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:56:28,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:56:28,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:56:28,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:56:28,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:56:28,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:56:28,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:56:28,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:56:28,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:56:28,193 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 [2020-09-24 17:56:28,238 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:56:28,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:56:28,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:56:28,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:56:28,241 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:56:28,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:56:28,241 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:56:28,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:56:28,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:56:28,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:56:28,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:56:28,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:56:28,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:56:28,244 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:56:28,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:56:28,244 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:56:28,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:56:28,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:56:28,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:56:28,245 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:56:28,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:56:28,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:56:28,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:56:28,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:56:28,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:56:28,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:56:28,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:56:28,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:56:28,247 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:56:28,247 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.rcfgbuilder: Size of a code block -> SingleStatement 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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 17:56:28,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:56:28,719 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:56:28,725 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:56:28,727 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:56:28,728 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:56:28,729 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2020-09-24 17:56:28,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc9bce625/057cf46785c340ffa869401fa1518adc/FLAG69fb03e4d [2020-09-24 17:56:29,434 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:56:29,435 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2020-09-24 17:56:29,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc9bce625/057cf46785c340ffa869401fa1518adc/FLAG69fb03e4d [2020-09-24 17:56:29,652 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc9bce625/057cf46785c340ffa869401fa1518adc [2020-09-24 17:56:29,666 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:56:29,671 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:56:29,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:56:29,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:56:29,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:56:29,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:56:29" (1/1) ... [2020-09-24 17:56:29,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ceb0903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:29, skipping insertion in model container [2020-09-24 17:56:29,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:56:29" (1/1) ... [2020-09-24 17:56:29,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:56:29,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:56:30,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:56:30,208 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:56:30,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:56:30,352 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:56:30,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:30 WrapperNode [2020-09-24 17:56:30,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:56:30,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:56:30,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:56:30,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:56:30,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:30" (1/1) ... [2020-09-24 17:56:30,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:30" (1/1) ... [2020-09-24 17:56:30,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:30" (1/1) ... [2020-09-24 17:56:30,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:30" (1/1) ... [2020-09-24 17:56:30,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:30" (1/1) ... [2020-09-24 17:56:30,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:30" (1/1) ... [2020-09-24 17:56:30,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:30" (1/1) ... [2020-09-24 17:56:30,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:56:30,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:56:30,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:56:30,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:56:30,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:30" (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 [2020-09-24 17:56:30,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:56:30,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:56:30,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 17:56:30,570 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 17:56:30,570 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 17:56:30,570 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 17:56:30,570 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 17:56:30,571 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 17:56:30,573 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 17:56:30,573 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 17:56:30,573 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 17:56:30,573 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 17:56:30,573 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 17:56:30,574 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 17:56:30,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 17:56:30,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 17:56:30,575 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 17:56:30,575 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 17:56:30,575 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 17:56:30,576 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 17:56:30,576 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 17:56:30,576 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 17:56:30,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 17:56:30,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 17:56:30,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 17:56:30,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 17:56:30,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 17:56:30,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 17:56:30,578 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 17:56:30,578 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 17:56:30,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 17:56:30,579 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 17:56:30,579 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:56:30,579 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 17:56:30,579 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 17:56:30,579 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 17:56:30,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 17:56:30,579 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 17:56:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 17:56:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 17:56:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 17:56:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:56:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 17:56:30,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:56:30,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:56:30,581 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 17:56:30,581 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 17:56:30,581 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 17:56:30,581 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 17:56:30,581 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 17:56:30,582 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 17:56:30,582 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 17:56:30,582 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 17:56:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 17:56:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 17:56:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 17:56:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 17:56:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:56:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 17:56:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 17:56:30,584 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 17:56:30,584 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 17:56:30,584 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 17:56:30,584 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 17:56:30,584 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 17:56:30,584 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 17:56:30,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:56:30,585 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 17:56:30,585 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 17:56:30,585 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 17:56:30,586 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 17:56:30,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 17:56:30,588 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 17:56:30,588 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 17:56:30,588 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 17:56:30,588 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 17:56:30,588 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:56:30,588 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:56:30,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 17:56:30,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:56:30,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:56:30,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:56:30,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:56:30,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 17:56:30,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:56:30,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 17:56:30,590 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 17:56:30,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:56:30,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 17:56:30,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 17:56:30,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 17:56:30,592 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 17:56:30,592 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 17:56:30,592 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 17:56:30,592 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:56:30,592 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 17:56:30,592 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 17:56:30,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:56:30,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:56:30,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:56:31,725 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:56:31,725 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:56:31,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:56:31 BoogieIcfgContainer [2020-09-24 17:56:31,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:56:31,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:56:31,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:56:31,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:56:31,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:56:29" (1/3) ... [2020-09-24 17:56:31,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382a2806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:56:31, skipping insertion in model container [2020-09-24 17:56:31,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:56:30" (2/3) ... [2020-09-24 17:56:31,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382a2806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:56:31, skipping insertion in model container [2020-09-24 17:56:31,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:56:31" (3/3) ... [2020-09-24 17:56:31,741 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product62.cil.c [2020-09-24 17:56:31,753 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:56:31,764 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:56:31,785 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:56:31,817 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:56:31,817 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:56:31,817 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:56:31,817 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:56:31,818 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:56:31,818 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:56:31,818 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:56:31,818 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:56:31,846 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states. [2020-09-24 17:56:31,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 17:56:31,870 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:31,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:56:31,872 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:31,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:31,880 INFO L82 PathProgramCache]: Analyzing trace with hash 978294910, now seen corresponding path program 1 times [2020-09-24 17:56:31,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:31,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794158384] [2020-09-24 17:56:31,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:32,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:32,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:34,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:35,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:36,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:37,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:37,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 17:56:37,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:56:37,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-24 17:56:37,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:37,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:37,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 17:56:37,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:37,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 17:56:37,631 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:37,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:37,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:37,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:37,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:37,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:37,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 17:56:37,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:37,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:37,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:37,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:37,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:37,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:37,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:37,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:37,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:37,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:37,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:37,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:37,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:37,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:37,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:37,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:37,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:37,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:37,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:37,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:37,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:37,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:37,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:37,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:37,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:37,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:37,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:37,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:37,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:37,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:56:37,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:37,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:37,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:37,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:37,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:37,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:37,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:37,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:37,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:37,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:37,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:37,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:37,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:37,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:37,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:37,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:37,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 17:56:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:37,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:37,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:37,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:37,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:37,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:37,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:37,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:37,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:37,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:37,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:37,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 17:56:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:37,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:37,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:37,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:37,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:37,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:37,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:37,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:37,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:56:37,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794158384] [2020-09-24 17:56:37,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:37,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:56:37,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847870422] [2020-09-24 17:56:37,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:56:37,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:37,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:56:37,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:56:37,974 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 3 states. [2020-09-24 17:56:39,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:39,453 INFO L93 Difference]: Finished difference Result 560 states and 667 transitions. [2020-09-24 17:56:39,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:56:39,455 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 17:56:39,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:39,479 INFO L225 Difference]: With dead ends: 560 [2020-09-24 17:56:39,479 INFO L226 Difference]: Without dead ends: 340 [2020-09-24 17:56:39,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:56:39,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-24 17:56:39,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 294. [2020-09-24 17:56:39,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-09-24 17:56:39,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 323 transitions. [2020-09-24 17:56:39,678 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 323 transitions. Word has length 142 [2020-09-24 17:56:39,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:39,680 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 323 transitions. [2020-09-24 17:56:39,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:56:39,680 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 323 transitions. [2020-09-24 17:56:39,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 17:56:39,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:39,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:56:39,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:56:39,693 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:39,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:39,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1922789208, now seen corresponding path program 1 times [2020-09-24 17:56:39,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:39,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1030933661] [2020-09-24 17:56:39,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:39,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:39,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:41,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:42,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:43,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:44,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:44,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 17:56:44,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:56:44,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-24 17:56:44,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:44,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:44,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 17:56:44,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:56:44,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:45,161 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:45,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:45,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:45,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:45,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:45,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:45,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 17:56:45,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:45,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:45,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:45,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:45,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:45,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:45,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:45,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:45,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:45,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:45,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:45,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:45,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:45,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:45,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:45,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:45,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:45,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:45,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:45,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:45,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:45,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:45,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:45,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:45,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:45,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:45,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:45,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:45,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:45,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:45,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:56:45,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:45,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:45,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:45,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:45,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:45,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:45,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:45,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:45,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:45,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:45,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:56:45,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:45,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:45,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:45,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:45,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:45,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 17:56:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:45,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:45,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:45,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:45,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:45,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:45,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:45,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:45,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:45,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 17:56:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:45,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:45,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:45,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:45,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:45,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:45,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:45,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:45,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:45,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:45,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:45,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:56:45,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1030933661] [2020-09-24 17:56:45,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:45,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:56:45,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480066752] [2020-09-24 17:56:45,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:56:45,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:45,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:56:45,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:56:45,413 INFO L87 Difference]: Start difference. First operand 294 states and 323 transitions. Second operand 4 states. [2020-09-24 17:56:46,013 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:56:47,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:47,251 INFO L93 Difference]: Finished difference Result 473 states and 538 transitions. [2020-09-24 17:56:47,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:56:47,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 17:56:47,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:47,259 INFO L225 Difference]: With dead ends: 473 [2020-09-24 17:56:47,261 INFO L226 Difference]: Without dead ends: 323 [2020-09-24 17:56:47,263 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 [2020-09-24 17:56:47,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-09-24 17:56:47,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 284. [2020-09-24 17:56:47,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-24 17:56:47,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 310 transitions. [2020-09-24 17:56:47,314 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 310 transitions. Word has length 143 [2020-09-24 17:56:47,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:47,315 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 310 transitions. [2020-09-24 17:56:47,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:56:47,315 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 310 transitions. [2020-09-24 17:56:47,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 17:56:47,318 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:47,318 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:56:47,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:56:47,318 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:47,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:47,319 INFO L82 PathProgramCache]: Analyzing trace with hash -312592452, now seen corresponding path program 1 times [2020-09-24 17:56:47,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:47,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874505205] [2020-09-24 17:56:47,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:47,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:47,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:47,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:49,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:52,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:52,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 17:56:52,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:56:52,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-24 17:56:52,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:52,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:52,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 17:56:52,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:56:52,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:52,657 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:52,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:52,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:52,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:52,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:52,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:52,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 17:56:52,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:52,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:52,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:52,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:52,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:52,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:52,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:52,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:52,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:52,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:52,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:56:52,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:52,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:52,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:52,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:52,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:52,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:52,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:52,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:52,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:52,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:52,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:52,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:52,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:52,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:52,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:52,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:52,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:52,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:52,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:52,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:52,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:52,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:52,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:52,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:52,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:52,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:52,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:52,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:52,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:52,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:52,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:52,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:52,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:52,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:52,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:52,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:52,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 17:56:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:52,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:52,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:52,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:56:52,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:52,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:52,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:52,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 17:56:52,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:52,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 17:56:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:52,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:52,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:52,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:52,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:52,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:52,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:52,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:52,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:52,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 17:56:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:52,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:52,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:52,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:52,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:52,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:52,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:52,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:52,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:52,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:52,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:52,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:56:52,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874505205] [2020-09-24 17:56:52,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:52,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:56:52,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43962335] [2020-09-24 17:56:52,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:56:52,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:52,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:56:52,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:56:52,927 INFO L87 Difference]: Start difference. First operand 284 states and 310 transitions. Second operand 5 states. [2020-09-24 17:56:53,438 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:56:54,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:54,604 INFO L93 Difference]: Finished difference Result 519 states and 600 transitions. [2020-09-24 17:56:54,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:56:54,605 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 17:56:54,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:54,610 INFO L225 Difference]: With dead ends: 519 [2020-09-24 17:56:54,610 INFO L226 Difference]: Without dead ends: 345 [2020-09-24 17:56:54,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:56:54,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-24 17:56:54,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 284. [2020-09-24 17:56:54,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-24 17:56:54,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 309 transitions. [2020-09-24 17:56:54,656 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 309 transitions. Word has length 156 [2020-09-24 17:56:54,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:54,657 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 309 transitions. [2020-09-24 17:56:54,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:56:54,657 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 309 transitions. [2020-09-24 17:56:54,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 17:56:54,660 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:54,660 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:56:54,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:56:54,660 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:54,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:54,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1643670934, now seen corresponding path program 1 times [2020-09-24 17:56:54,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:54,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571865921] [2020-09-24 17:56:54,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:54,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:54,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:54,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:55,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:57,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:58,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:58,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:58,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:59,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:59,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:59,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-24 17:56:59,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 17:56:59,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-24 17:56:59,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:56:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-24 17:56:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:56:59,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:00,010 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:57:00,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:57:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:00,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:00,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:00,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:57:00,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:00,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 17:57:00,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:00,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:57:00,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:57:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:00,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:00,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:00,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:57:00,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:00,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:57:00,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:00,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:00,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:00,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:00,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:57:00,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:57:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:00,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:00,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:00,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:57:00,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:00,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:57:00,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:00,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:00,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:00,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:00,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:57:00,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:57:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:00,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:00,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:00,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:57:00,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:00,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:57:00,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:00,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:00,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:00,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:00,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:57:00,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:57:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:00,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:00,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:00,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:57:00,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:00,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:57:00,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:00,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:00,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:00,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:00,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:57:00,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 17:57:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:00,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:00,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:00,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:57:00,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:00,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:57:00,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:00,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:00,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 17:57:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:00,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:00,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:00,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:00,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 17:57:00,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:57:00,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 17:57:00,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:57:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 17:57:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:57:00,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:57:00,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:57:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:00,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:00,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:00,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 17:57:00,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:00,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 17:57:00,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:00,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:57:00,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 17:57:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:57:00,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:00,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:57:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:00,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:00,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:00,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:57:00,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:00,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 17:57:00,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:00,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:57:00,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 17:57:00,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 17:57:00,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:57:00,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:57:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:00,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:00,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:00,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:57:00,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:00,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:57:00,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:00,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:57:00,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:00,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:57:00,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:00,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 17:57:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:00,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:00,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:00,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:57:00,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:00,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:57:00,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:57:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:00,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:00,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-24 17:57:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:00,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:00,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:00,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:57:00,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:00,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:57:00,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:00,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:00,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:57:00,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:00,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:00,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:57:00,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571865921] [2020-09-24 17:57:00,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:57:00,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:57:00,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675838171] [2020-09-24 17:57:00,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:57:00,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:57:00,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:57:00,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:57:00,376 INFO L87 Difference]: Start difference. First operand 284 states and 309 transitions. Second operand 7 states. [2020-09-24 17:57:00,893 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:57:02,562 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:57:03,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:57:03,815 INFO L93 Difference]: Finished difference Result 713 states and 845 transitions. [2020-09-24 17:57:03,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 17:57:03,816 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2020-09-24 17:57:03,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:57:03,835 INFO L225 Difference]: With dead ends: 713 [2020-09-24 17:57:03,835 INFO L226 Difference]: Without dead ends: 539 [2020-09-24 17:57:03,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-24 17:57:03,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-09-24 17:57:03,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 412. [2020-09-24 17:57:03,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-09-24 17:57:03,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 444 transitions. [2020-09-24 17:57:03,901 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 444 transitions. Word has length 174 [2020-09-24 17:57:03,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:57:03,905 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 444 transitions. [2020-09-24 17:57:03,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:57:03,905 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 444 transitions. [2020-09-24 17:57:03,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-24 17:57:03,908 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:57:03,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:57:03,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:57:03,909 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:57:03,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:57:03,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1767633038, now seen corresponding path program 1 times [2020-09-24 17:57:03,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:57:03,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588083824] [2020-09-24 17:57:03,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:57:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:04,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:04,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:04,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:04,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:05,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:05,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:08,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:08,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-24 17:57:08,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:57:08,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-24 17:57:08,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:08,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:57:08,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-09-24 17:57:08,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 17:57:08,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:09,297 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:57:09,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:57:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:09,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:09,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:57:09,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:09,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 17:57:09,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:09,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:09,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:09,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:09,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:09,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:57:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:09,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:09,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:57:09,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:09,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:57:09,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:09,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:09,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:09,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:09,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:09,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:57:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:09,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:09,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:57:09,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:09,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:57:09,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:09,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:09,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:09,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:09,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:09,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:57:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:09,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:09,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:57:09,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:09,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:57:09,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:09,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:09,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:09,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:09,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:09,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:57:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:09,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:09,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:57:09,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:09,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:57:09,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:09,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:09,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 17:57:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:09,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:09,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:57:09,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:09,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:57:09,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:09,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:09,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:09,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:09,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:09,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 17:57:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:09,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:09,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 17:57:09,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:57:09,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-24 17:57:09,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:09,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:57:09,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:09,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 17:57:09,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:09,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:57:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:09,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:09,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 17:57:09,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:57:09,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 17:57:09,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:09,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:57:09,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:09,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:57:09,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:09,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:57:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:09,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:09,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 17:57:09,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:09,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 17:57:09,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:09,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:57:09,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:09,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:57:09,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:09,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:57:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:09,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:09,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 17:57:09,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:09,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 17:57:09,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:09,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:57:09,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:09,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 17:57:09,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:09,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:57:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:09,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:09,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 17:57:09,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:09,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:57:09,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:09,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:57:09,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:09,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:57:09,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:09,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 17:57:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:09,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:09,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:57:09,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:09,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:57:09,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:09,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:57:09,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:09,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:57:09,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:09,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-24 17:57:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:09,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:09,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:57:09,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:09,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:57:09,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:09,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:57:09,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:09,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:57:09,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:09,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 17:57:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:09,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:09,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:57:09,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:57:09,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:57:09,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:57:09,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:57:09,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:57:09,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:57:09,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:57:09,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:57:09,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:57:09,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588083824] [2020-09-24 17:57:09,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:57:09,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 17:57:09,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54744164] [2020-09-24 17:57:09,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 17:57:09,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:57:09,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 17:57:09,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:57:09,844 INFO L87 Difference]: Start difference. First operand 412 states and 444 transitions. Second operand 10 states. [2020-09-24 17:57:10,388 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:57:12,038 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:57:12,346 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:57:12,704 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:57:13,932 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:57:14,326 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:57:14,644 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:57:14,960 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:57:15,268 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:57:15,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:57:15,647 INFO L93 Difference]: Finished difference Result 542 states and 631 transitions. [2020-09-24 17:57:15,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 17:57:15,648 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 198 [2020-09-24 17:57:15,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:57:15,653 INFO L225 Difference]: With dead ends: 542 [2020-09-24 17:57:15,653 INFO L226 Difference]: Without dead ends: 539 [2020-09-24 17:57:15,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 17:57:15,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-09-24 17:57:15,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 412. [2020-09-24 17:57:15,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-09-24 17:57:15,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 443 transitions. [2020-09-24 17:57:15,716 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 443 transitions. Word has length 198 [2020-09-24 17:57:15,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:57:15,717 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 443 transitions. [2020-09-24 17:57:15,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 17:57:15,718 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 443 transitions. [2020-09-24 17:57:15,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-09-24 17:57:15,721 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:57:15,721 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:57:15,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 17:57:15,722 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:57:15,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:57:15,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1773438588, now seen corresponding path program 1 times [2020-09-24 17:57:15,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:57:15,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921167241] [2020-09-24 17:57:15,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:57:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:57:15,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:16,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:57:16,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking...