/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_spec3_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:23:07,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:23:07,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:23:07,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:23:07,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:23:07,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:23:07,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:23:07,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:23:07,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:23:07,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:23:07,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:23:07,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:23:07,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:23:07,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:23:07,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:23:07,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:23:07,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:23:07,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:23:07,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:23:07,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:23:07,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:23:07,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:23:07,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:23:07,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:23:07,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:23:07,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:23:07,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:23:07,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:23:07,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:23:07,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:23:07,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:23:07,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:23:07,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:23:07,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:23:07,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:23:07,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:23:07,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:23:07,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:23:07,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:23:07,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:23:07,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:23:07,158 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 [2020-09-25 06:23:07,195 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:23:07,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:23:07,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:23:07,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:23:07,197 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:23:07,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:23:07,197 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:23:07,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:23:07,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:23:07,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:23:07,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:23:07,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:23:07,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:23:07,199 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:23:07,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:23:07,199 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:23:07,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:23:07,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:23:07,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:23:07,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:23:07,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:23:07,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:23:07,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:23:07,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:23:07,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:23:07,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:23:07,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:23:07,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:23:07,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:23:07,202 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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:23:07,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:23:07,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:23:07,678 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:23:07,680 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:23:07,681 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:23:07,682 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c [2020-09-25 06:23:07,776 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d0e7394b/fbc2b71850064cd0b2421b047d15fce5/FLAGe29dd1891 [2020-09-25 06:23:08,449 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:23:08,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c [2020-09-25 06:23:08,466 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d0e7394b/fbc2b71850064cd0b2421b047d15fce5/FLAGe29dd1891 [2020-09-25 06:23:08,698 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d0e7394b/fbc2b71850064cd0b2421b047d15fce5 [2020-09-25 06:23:08,714 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:23:08,719 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:23:08,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:23:08,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:23:08,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:23:08,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:23:08" (1/1) ... [2020-09-25 06:23:08,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770ea115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:08, skipping insertion in model container [2020-09-25 06:23:08,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:23:08" (1/1) ... [2020-09-25 06:23:08,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:23:08,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:23:09,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:23:09,333 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:23:09,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:23:09,453 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:23:09,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:09 WrapperNode [2020-09-25 06:23:09,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:23:09,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:23:09,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:23:09,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:23:09,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:09" (1/1) ... [2020-09-25 06:23:09,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:09" (1/1) ... [2020-09-25 06:23:09,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:09" (1/1) ... [2020-09-25 06:23:09,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:09" (1/1) ... [2020-09-25 06:23:09,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:09" (1/1) ... [2020-09-25 06:23:09,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:09" (1/1) ... [2020-09-25 06:23:09,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:09" (1/1) ... [2020-09-25 06:23:09,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:23:09,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:23:09,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:23:09,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:23:09,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:09" (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 [2020-09-25 06:23:09,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:23:09,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:23:09,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:23:09,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:23:09,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:23:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:23:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:23:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:23:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:23:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:23:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:23:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:23:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:23:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:23:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:23:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:23:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:23:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:23:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:23:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:23:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:23:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:23:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:23:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:23:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:23:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:23:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:23:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:23:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:23:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:23:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:23:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:23:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:23:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:23:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:23:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:23:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 06:23:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:23:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:23:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:23:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:23:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:23:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:23:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:23:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:23:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:23:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:23:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:23:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:23:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:23:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:23:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:23:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:23:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:23:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:23:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:23:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:23:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:23:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:23:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:23:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:23:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:23:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:23:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:23:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:23:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:23:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:23:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:23:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:23:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:23:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:23:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:23:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 06:23:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:23:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:23:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:23:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:23:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:23:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:23:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:23:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:23:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:23:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:23:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:23:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:23:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:23:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:23:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:23:10,857 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:23:10,857 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:23:10,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:23:10 BoogieIcfgContainer [2020-09-25 06:23:10,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:23:10,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:23:10,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:23:10,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:23:10,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:23:08" (1/3) ... [2020-09-25 06:23:10,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eaf76b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:23:10, skipping insertion in model container [2020-09-25 06:23:10,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:09" (2/3) ... [2020-09-25 06:23:10,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eaf76b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:23:10, skipping insertion in model container [2020-09-25 06:23:10,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:23:10" (3/3) ... [2020-09-25 06:23:10,880 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2020-09-25 06:23:10,892 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:23:10,903 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:23:10,924 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:23:10,954 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:23:10,954 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:23:10,954 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:23:10,954 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:23:10,955 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:23:10,955 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:23:10,955 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:23:10,955 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:23:10,980 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-09-25 06:23:10,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 06:23:10,997 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:10,999 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] [2020-09-25 06:23:10,999 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:11,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:11,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1231247222, now seen corresponding path program 1 times [2020-09-25 06:23:11,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:11,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527322505] [2020-09-25 06:23:11,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:11,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:11,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:12,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:15,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:15,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 06:23:15,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:23:15,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4282 [2020-09-25 06:23:15,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:15,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:15,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:15,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:23:15,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:15,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:23:16,059 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:16,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:16,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:16,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:16,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:16,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:16,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 06:23:16,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:16,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:16,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:16,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:16,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:16,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:16,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:16,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:16,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:16,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:16,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:16,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:16,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:16,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:16,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:16,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:16,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:16,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:16,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:16,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:16,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:16,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:16,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:16,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:16,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:16,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:16,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:16,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:16,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:16,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:16,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:16,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:16,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:16,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:16,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:16,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:16,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:23:16,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:16,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:16,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:16,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:16,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:16,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:16,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:16,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:16,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:16,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:16,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:16,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:16,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:16,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:16,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:16,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:16,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:16,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:16,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:23:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:16,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:16,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:16,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:16,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:16,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:16,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:16,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:16,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:16,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:16,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:16,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:16,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:23:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:16,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:16,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:16,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:16,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:16,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:16,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:16,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:16,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:16,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:16,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:16,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:16,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 06:23:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:16,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:16,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:16,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:16,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:16,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:16,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:16,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:16,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:16,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:16,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:16,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:16,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:23:16,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527322505] [2020-09-25 06:23:16,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:16,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:23:16,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926881322] [2020-09-25 06:23:16,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:23:16,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:16,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:23:16,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:23:16,387 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 3 states. [2020-09-25 06:23:17,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:17,594 INFO L93 Difference]: Finished difference Result 435 states and 517 transitions. [2020-09-25 06:23:17,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:23:17,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 06:23:17,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:17,617 INFO L225 Difference]: With dead ends: 435 [2020-09-25 06:23:17,617 INFO L226 Difference]: Without dead ends: 274 [2020-09-25 06:23:17,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:23:17,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-25 06:23:17,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 235. [2020-09-25 06:23:17,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-25 06:23:17,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 253 transitions. [2020-09-25 06:23:17,726 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 253 transitions. Word has length 153 [2020-09-25 06:23:17,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:17,728 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 253 transitions. [2020-09-25 06:23:17,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:23:17,728 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 253 transitions. [2020-09-25 06:23:17,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 06:23:17,733 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:17,733 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] [2020-09-25 06:23:17,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:23:17,734 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:17,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:17,734 INFO L82 PathProgramCache]: Analyzing trace with hash -606501768, now seen corresponding path program 1 times [2020-09-25 06:23:17,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:17,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019830705] [2020-09-25 06:23:17,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:17,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:17,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:18,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:22,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:22,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 06:23:22,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:23:22,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4947 [2020-09-25 06:23:22,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:22,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:22,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:22,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 06:23:22,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 06:23:22,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:23,086 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:23,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:23,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:23,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:23,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:23,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:23,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 06:23:23,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:23,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 06:23:23,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:23,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:23,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:23,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:23,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:23,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:23,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:23,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:23,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:23,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:23,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:23,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:23,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:23,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:23,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:23,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:23,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:23,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:23,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:23,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:23,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:23,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:23,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:23,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:23,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:23,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:23,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:23,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:23,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:23,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:23,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 06:23:23,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:23,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:23,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:23,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:23,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:23,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:23:23,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:23,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:23,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:23,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:23,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:23,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:23,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:23,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:23,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:23,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:23,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:23,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:23,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 06:23:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:23,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:23,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:23,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:23,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:23,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:23,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:23,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:23,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:23,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:23,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:23,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:23,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 06:23:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:23,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:23,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:23,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:23,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:23,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:23,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:23,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:23,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:23,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 06:23:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:23,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:23,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:23,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:23,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:23,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:23,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:23,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:23,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:23,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:23,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:23,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:23,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:23:23,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019830705] [2020-09-25 06:23:23,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:23,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:23:23,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901392486] [2020-09-25 06:23:23,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:23:23,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:23,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:23:23,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:23:23,526 INFO L87 Difference]: Start difference. First operand 235 states and 253 transitions. Second operand 4 states. [2020-09-25 06:23:24,061 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:23:24,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:24,867 INFO L93 Difference]: Finished difference Result 399 states and 458 transitions. [2020-09-25 06:23:24,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:23:24,874 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 06:23:24,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:24,883 INFO L225 Difference]: With dead ends: 399 [2020-09-25 06:23:24,883 INFO L226 Difference]: Without dead ends: 274 [2020-09-25 06:23:24,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:23:24,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-25 06:23:24,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 235. [2020-09-25 06:23:24,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-25 06:23:24,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2020-09-25 06:23:24,965 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 154 [2020-09-25 06:23:24,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:24,968 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2020-09-25 06:23:24,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:23:24,968 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2020-09-25 06:23:24,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 06:23:24,974 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:24,975 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] [2020-09-25 06:23:24,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:23:24,975 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:24,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:24,976 INFO L82 PathProgramCache]: Analyzing trace with hash -23414697, now seen corresponding path program 1 times [2020-09-25 06:23:24,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:24,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894523427] [2020-09-25 06:23:24,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:25,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:25,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:27,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:27,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 06:23:27,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:23:27,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2784 [2020-09-25 06:23:27,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:27,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:27,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:27,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:23:27,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:23:27,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:23:28,170 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:28,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:28,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:28,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:28,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:28,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:28,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 06:23:28,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:28,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:28,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:28,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:28,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:28,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:28,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:28,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:28,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:28,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:28,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:28,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:28,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:28,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:28,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:28,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:28,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:23:28,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:28,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:28,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:28,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:28,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:28,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:28,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:28,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:28,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:28,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:28,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:28,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:28,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:28,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:28,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:28,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:28,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:28,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:28,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:28,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:28,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:28,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:28,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:28,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:23:28,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:28,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:28,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:28,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:28,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:28,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:28,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:28,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:28,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:28,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:28,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:28,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:28,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 06:23:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:28,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:28,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:28,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:23:28,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:28,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:28,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:28,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:28,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:28,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 06:23:28,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:28,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:28,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:23:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:28,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:28,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:28,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:28,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:28,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:28,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:28,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:28,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:28,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:28,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:28,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:28,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:23:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:28,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:28,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:28,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:28,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:28,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:28,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:28,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:28,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:28,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:28,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:28,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:28,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 06:23:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:28,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:28,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:28,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:28,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:28,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:28,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:28,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:28,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:28,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:28,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 06:23:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:28,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:28,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:28,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:28,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:28,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:28,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:28,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:28,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:28,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:28,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:23:28,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894523427] [2020-09-25 06:23:28,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:28,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:23:28,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548178745] [2020-09-25 06:23:28,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:23:28,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:28,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:23:28,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:23:28,488 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 5 states. [2020-09-25 06:23:29,203 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:23:30,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:30,249 INFO L93 Difference]: Finished difference Result 376 states and 426 transitions. [2020-09-25 06:23:30,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:23:30,250 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2020-09-25 06:23:30,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:30,253 INFO L225 Difference]: With dead ends: 376 [2020-09-25 06:23:30,254 INFO L226 Difference]: Without dead ends: 281 [2020-09-25 06:23:30,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:23:30,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-09-25 06:23:30,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 225. [2020-09-25 06:23:30,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-09-25 06:23:30,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 239 transitions. [2020-09-25 06:23:30,324 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 239 transitions. Word has length 162 [2020-09-25 06:23:30,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:30,325 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 239 transitions. [2020-09-25 06:23:30,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:23:30,325 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 239 transitions. [2020-09-25 06:23:30,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 06:23:30,327 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:30,328 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] [2020-09-25 06:23:30,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:23:30,328 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:30,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:30,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1060139161, now seen corresponding path program 1 times [2020-09-25 06:23:30,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:30,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564326265] [2020-09-25 06:23:30,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:30,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:32,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:32,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 06:23:32,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:32,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1742 [2020-09-25 06:23:32,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:32,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:32,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 06:23:32,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 06:23:32,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 06:23:32,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:23:32,533 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:32,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:32,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:32,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:32,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:32,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:32,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-25 06:23:32,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:32,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:32,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:32,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:32,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 06:23:32,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:32,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:32,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:32,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:32,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:32,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:32,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:23:32,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:32,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:32,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:32,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:32,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:32,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:32,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:32,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:32,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:32,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:32,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:32,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:32,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:32,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:32,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:32,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:32,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:32,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:32,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:32,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:32,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:32,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:32,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:32,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:23:32,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:32,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:32,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:32,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:32,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:32,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:32,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:32,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:32,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:32,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:32,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:32,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:32,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:32,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:32,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:23:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:32,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:32,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:32,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:23:32,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:32,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:23:32,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:32,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:32,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:32,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:32,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:23:32,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:32,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:23:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:32,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:32,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:32,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:32,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:32,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:32,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:32,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:32,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:32,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:32,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:32,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:32,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:23:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:33,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:33,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:33,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:33,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:33,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:33,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:33,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:33,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:33,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:33,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:33,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:33,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:23:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:33,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:33,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:33,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:33,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:33,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:23:33,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:33,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:33,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:23:33,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:33,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:33,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:33,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 06:23:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:33,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:33,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:33,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:33,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:33,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:23:33,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:33,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:33,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:33,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:33,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:33,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:33,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:23:33,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564326265] [2020-09-25 06:23:33,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:33,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:23:33,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300391785] [2020-09-25 06:23:33,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:23:33,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:33,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:23:33,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:23:33,229 INFO L87 Difference]: Start difference. First operand 225 states and 239 transitions. Second operand 9 states. [2020-09-25 06:23:33,824 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:23:35,174 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:23:36,479 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 06:23:37,118 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 06:23:37,510 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:23:37,850 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:23:38,112 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:23:38,512 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:23:39,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:39,178 INFO L93 Difference]: Finished difference Result 526 states and 615 transitions. [2020-09-25 06:23:39,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:23:39,178 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-09-25 06:23:39,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:39,183 INFO L225 Difference]: With dead ends: 526 [2020-09-25 06:23:39,183 INFO L226 Difference]: Without dead ends: 411 [2020-09-25 06:23:39,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:23:39,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-09-25 06:23:39,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 336. [2020-09-25 06:23:39,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-25 06:23:39,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 365 transitions. [2020-09-25 06:23:39,238 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 365 transitions. Word has length 171 [2020-09-25 06:23:39,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:39,238 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 365 transitions. [2020-09-25 06:23:39,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:23:39,239 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 365 transitions. [2020-09-25 06:23:39,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 06:23:39,242 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:39,243 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] [2020-09-25 06:23:39,243 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:23:39,243 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:39,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:39,244 INFO L82 PathProgramCache]: Analyzing trace with hash -326651843, now seen corresponding path program 1 times [2020-09-25 06:23:39,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:39,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493244300] [2020-09-25 06:23:39,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:39,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:39,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:42,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:44,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:44,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 06:23:44,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:23:44,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 06:23:44,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:44,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:44,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:23:44,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 06:23:44,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:23:44,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:23:44,618 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:44,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:44,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:44,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:44,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:44,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:44,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 06:23:44,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:44,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:44,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:44,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:44,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:44,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:44,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:44,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:44,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:44,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:44,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:44,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:23:44,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:44,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:44,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:44,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:44,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:44,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:23:44,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:44,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:44,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:44,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:44,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:44,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:44,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:44,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:44,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:44,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:44,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:44,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:23:44,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:44,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:44,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:44,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:44,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:44,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:44,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:44,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:44,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:44,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:44,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:44,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:23:44,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:44,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:44,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:44,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:44,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:44,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:23:44,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:44,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:44,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:44,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:44,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:44,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:23:44,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 06:23:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:44,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:44,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:44,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:23:44,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:44,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:44,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:44,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:44,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:44,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:44,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:44,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:44,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:23:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:44,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:44,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:44,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:23:44,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:44,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:23:44,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:44,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:23:44,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:44,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 06:23:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:44,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:44,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:44,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:23:44,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:44,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:23:44,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:44,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:44,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:23:44,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:23:44,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:23:44,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:44,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:23:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:44,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:44,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:44,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:44,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:44,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:23:44,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:44,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:44,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:44,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:44,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:44,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:44,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:23:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:44,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:44,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:44,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:44,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:44,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:23:44,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:44,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:44,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:44,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:44,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:44,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:23:44,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 06:23:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:44,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:44,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:44,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:44,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:44,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:44,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:44,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:44,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:44,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:44,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:44,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:23:44,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 06:23:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:44,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:44,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:44,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:44,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:44,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:44,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:44,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:44,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:44,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:44,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:44,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:44,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:23:44,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493244300] [2020-09-25 06:23:44,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:44,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:23:44,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210421008] [2020-09-25 06:23:44,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:23:44,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:44,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:23:44,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:23:44,969 INFO L87 Difference]: Start difference. First operand 336 states and 365 transitions. Second operand 7 states. [2020-09-25 06:23:45,889 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:23:46,121 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:23:48,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:48,137 INFO L93 Difference]: Finished difference Result 790 states and 932 transitions. [2020-09-25 06:23:48,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 06:23:48,138 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-09-25 06:23:48,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:48,145 INFO L225 Difference]: With dead ends: 790 [2020-09-25 06:23:48,145 INFO L226 Difference]: Without dead ends: 564 [2020-09-25 06:23:48,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:23:48,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-09-25 06:23:48,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 501. [2020-09-25 06:23:48,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-09-25 06:23:48,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 564 transitions. [2020-09-25 06:23:48,245 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 564 transitions. Word has length 181 [2020-09-25 06:23:48,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:48,246 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 564 transitions. [2020-09-25 06:23:48,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:23:48,247 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 564 transitions. [2020-09-25 06:23:48,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 06:23:48,250 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:48,250 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] [2020-09-25 06:23:48,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:23:48,251 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:48,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:48,252 INFO L82 PathProgramCache]: Analyzing trace with hash 558510229, now seen corresponding path program 1 times [2020-09-25 06:23:48,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:48,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456821800] [2020-09-25 06:23:48,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 06:23:48,325 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 06:23:48,325 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 06:23:48,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:23:48,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:23:48 BoogieIcfgContainer [2020-09-25 06:23:48,374 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:23:48,378 INFO L168 Benchmark]: Toolchain (without parser) took 39660.83 ms. Allocated memory was 138.9 MB in the beginning and 688.4 MB in the end (delta: 549.5 MB). Free memory was 101.6 MB in the beginning and 80.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 571.0 MB. Max. memory is 7.1 GB. [2020-09-25 06:23:48,380 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 06:23:48,386 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.47 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.9 MB in the beginning and 172.3 MB in the end (delta: -71.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2020-09-25 06:23:48,387 INFO L168 Benchmark]: Boogie Preprocessor took 122.77 ms. Allocated memory is still 202.4 MB. Free memory was 172.3 MB in the beginning and 168.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:23:48,388 INFO L168 Benchmark]: RCFGBuilder took 1289.07 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 168.0 MB in the beginning and 180.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. [2020-09-25 06:23:48,389 INFO L168 Benchmark]: TraceAbstraction took 37504.97 ms. Allocated memory was 234.4 MB in the beginning and 688.4 MB in the end (delta: 454.0 MB). Free memory was 180.1 MB in the beginning and 80.0 MB in the end (delta: 100.0 MB). Peak memory consumption was 554.1 MB. Max. memory is 7.1 GB. [2020-09-25 06:23:48,403 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.47 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.9 MB in the beginning and 172.3 MB in the end (delta: -71.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.77 ms. Allocated memory is still 202.4 MB. Free memory was 172.3 MB in the beginning and 168.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1289.07 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 168.0 MB in the beginning and 180.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 37504.97 ms. Allocated memory was 234.4 MB in the beginning and 688.4 MB in the end (delta: 454.0 MB). Free memory was 180.1 MB in the beginning and 80.0 MB in the end (delta: 100.0 MB). Peak memory consumption was 554.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L735] int cleanupTimeShifts = 4; [L811] int retValue_acc ; [L812] int tmp ; [L816] FCALL select_helpers() [L817] FCALL select_features() [L818] CALL, EXPR valid_product() [L860] int retValue_acc ; [L863] retValue_acc = 1 [L864] return (retValue_acc); [L818] RET, EXPR valid_product() [L818] tmp = valid_product() [L820] COND TRUE \read(tmp) [L822] FCALL setup() [L823] CALL runTest() [L802] CALL test() [L514] int splverifierCounter ; [L515] int tmp ; [L516] int tmp___0 ; [L517] int tmp___1 ; [L518] int tmp___2 ; [L521] splverifierCounter = 0 [L523] COND TRUE 1 [L525] COND TRUE splverifierCounter < 4 [L531] tmp = __VERIFIER_nondet_int() [L533] COND TRUE \read(tmp) [L535] CALL waterRise() [L431] COND TRUE waterLevel < 2 [L432] waterLevel = waterLevel + 1 [L535] RET waterRise() [L541] tmp___0 = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp___0)) [L551] tmp___2 = __VERIFIER_nondet_int() [L553] COND TRUE \read(tmp___2) [L566] CALL timeShift() [L590] COND FALSE !(\read(pumpRunning)) [L597] COND TRUE \read(systemActive) [L599] CALL processEnvironment() [L619] int tmp ; [L622] COND FALSE !(\read(pumpRunning)) [L637] FCALL processEnvironment__wrappee__base() [L599] RET processEnvironment() [L605] CALL __utac_acc__Specification3_spec__1() [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L876] CALL, EXPR isMethaneLevelCritical() [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L876] RET, EXPR isMethaneLevelCritical() [L876] tmp = isMethaneLevelCritical() [L878] COND FALSE !(\read(tmp)) [L882] CALL, EXPR getWaterLevel() [L484] int retValue_acc ; [L487] retValue_acc = waterLevel [L488] return (retValue_acc); [L882] RET, EXPR getWaterLevel() [L882] tmp___0 = getWaterLevel() [L884] COND TRUE tmp___0 == 2 [L886] CALL, EXPR isPumpRunning() [L671] int retValue_acc ; [L674] retValue_acc = pumpRunning [L675] return (retValue_acc); [L886] RET, EXPR isPumpRunning() [L886] tmp___1 = isPumpRunning() [L888] COND FALSE !(\read(tmp___1)) [L892] CALL __automaton_fail() [L506] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 609 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 37.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1187 SDtfs, 1665 SDslu, 1091 SDs, 0 SdLazy, 2446 SolverSat, 458 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=501occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 272 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 22.4s InterpolantComputationTime, 997 NumberOfCodeBlocks, 997 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 816 ConstructedInterpolants, 0 QuantifiedInterpolants, 325498 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...