/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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_spec2_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:10:05,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:10:05,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:10:05,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:10:05,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:10:05,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:10:05,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:10:05,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:10:05,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:10:05,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:10:05,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:10:05,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:10:05,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:10:05,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:10:05,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:10:05,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:10:05,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:10:05,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:10:05,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:10:05,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:10:05,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:10:05,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:10:05,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:10:05,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:10:05,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:10:05,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:10:05,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:10:05,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:10:05,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:10:05,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:10:05,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:10:05,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:10:05,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:10:05,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:10:05,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:10:05,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:10:05,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:10:05,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:10:05,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:10:05,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:10:05,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:10:05,105 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 13:10:05,133 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:10:05,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:10:05,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:10:05,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:10:05,135 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:10:05,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:10:05,135 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:10:05,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:10:05,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:10:05,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:10:05,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:10:05,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:10:05,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:10:05,137 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:10:05,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:10:05,137 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:10:05,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:10:05,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:10:05,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:10:05,138 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:10:05,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:10:05,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:10:05,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:10:05,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:10:05,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:10:05,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:10:05,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:10:05,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:10:05,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:10:05,141 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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:10:05,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:10:05,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:10:05,657 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:10:05,659 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:10:05,659 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:10:05,660 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2020-09-25 13:10:05,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d854bc6eb/c3fbe9fd64244a778fb02dec30ed5f27/FLAG311902f60 [2020-09-25 13:10:06,442 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:10:06,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2020-09-25 13:10:06,474 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d854bc6eb/c3fbe9fd64244a778fb02dec30ed5f27/FLAG311902f60 [2020-09-25 13:10:06,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d854bc6eb/c3fbe9fd64244a778fb02dec30ed5f27 [2020-09-25 13:10:06,761 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:10:06,767 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:10:06,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:10:06,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:10:06,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:10:06,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:06" (1/1) ... [2020-09-25 13:10:06,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@593f5466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:06, skipping insertion in model container [2020-09-25 13:10:06,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:06" (1/1) ... [2020-09-25 13:10:06,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:10:06,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:10:07,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:10:07,337 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:10:07,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:10:07,480 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:10:07,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:07 WrapperNode [2020-09-25 13:10:07,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:10:07,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:10:07,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:10:07,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:10:07,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:07" (1/1) ... [2020-09-25 13:10:07,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:07" (1/1) ... [2020-09-25 13:10:07,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:07" (1/1) ... [2020-09-25 13:10:07,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:07" (1/1) ... [2020-09-25 13:10:07,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:07" (1/1) ... [2020-09-25 13:10:07,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:07" (1/1) ... [2020-09-25 13:10:07,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:07" (1/1) ... [2020-09-25 13:10:07,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:10:07,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:10:07,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:10:07,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:10:07,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:07" (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 13:10:07,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:10:07,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:10:07,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:10:07,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:10:07,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:10:07,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:10:07,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:10:07,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:10:07,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:10:07,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:10:07,673 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:10:07,673 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:10:07,673 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:10:07,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:10:07,674 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:10:07,674 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:10:07,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:10:07,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:10:07,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 13:10:07,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 13:10:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:10:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:10:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:10:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 13:10:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:10:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:10:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:10:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:10:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:10:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:10:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:10:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:10:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:10:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:10:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:10:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:10:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:10:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:10:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:10:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:10:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:10:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:10:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:10:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:10:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:10:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:10:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:10:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:10:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:10:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:10:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:10:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:10:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:10:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:10:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:10:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:10:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:10:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:10:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:10:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:10:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:10:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:10:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:10:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:10:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:10:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:10:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:10:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:10:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:10:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:10:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:10:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:10:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:10:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:10:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 13:10:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 13:10:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:10:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:10:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:10:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:10:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:10:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:10:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:10:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:10:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:10:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:10:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:10:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 13:10:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:10:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:10:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:10:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:10:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:10:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:10:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:10:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:10:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:10:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:10:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:10:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:10:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:10:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:10:08,965 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:10:08,965 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:10:08,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:08 BoogieIcfgContainer [2020-09-25 13:10:08,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:10:08,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:10:08,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:10:08,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:10:08,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:10:06" (1/3) ... [2020-09-25 13:10:08,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c0eddf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:08, skipping insertion in model container [2020-09-25 13:10:08,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:07" (2/3) ... [2020-09-25 13:10:08,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c0eddf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:08, skipping insertion in model container [2020-09-25 13:10:08,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:08" (3/3) ... [2020-09-25 13:10:08,983 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product56.cil.c [2020-09-25 13:10:08,997 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:10:09,009 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:10:09,035 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:10:09,072 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:10:09,073 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:10:09,073 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:10:09,073 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:10:09,073 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:10:09,073 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:10:09,074 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:10:09,074 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:10:09,103 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2020-09-25 13:10:09,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 13:10:09,123 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:10:09,125 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] [2020-09-25 13:10:09,125 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:10:09,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:10:09,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1985307326, now seen corresponding path program 1 times [2020-09-25 13:10:09,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:10:09,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7453764] [2020-09-25 13:10:09,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:10:09,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:09,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:09,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:11,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:12,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:13,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:14,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:14,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:14,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 13:10:14,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:10:14,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 13:10:14,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:14,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:14,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:10:14,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 13:10:14,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 13:10:14,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 13:10:15,057 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:10:15,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:10:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:15,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:15,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:15,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 13:10:15,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:15,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-09-25 13:10:15,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:15,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:15,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:15,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:15,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:10:15,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:15,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:10:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:15,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:15,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:15,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:15,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:15,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:10:15,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:15,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:15,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:15,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:10:15,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:15,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 13:10:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:15,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:15,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:15,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:15,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:15,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:10:15,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:15,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:15,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:15,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:15,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:10:15,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:15,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 13:10:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:15,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:15,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:15,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:15,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:15,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:10:15,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:15,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:15,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:15,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:15,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:10:15,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:15,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:10:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:15,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:15,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:15,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:15,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:15,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:10:15,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:15,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:10:15,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:15,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:10:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:15,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:15,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:15,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:10:15,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:15,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:10:15,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:15,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:10:15,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:15,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 13:10:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:15,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:15,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:15,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:15,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:15,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:10:15,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:15,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:15,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:15,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:10:15,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:15,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:15,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 13:10:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:15,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:15,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:15,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:15,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:15,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:10:15,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:15,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:15,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:15,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:10:15,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:15,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:10:15,766 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 13:10:15,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7453764] [2020-09-25 13:10:15,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:10:15,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:10:15,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489084095] [2020-09-25 13:10:15,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:10:15,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:10:15,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:10:15,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:10:15,803 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 5 states. [2020-09-25 13:10:16,484 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:10:19,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:10:19,180 INFO L93 Difference]: Finished difference Result 779 states and 938 transitions. [2020-09-25 13:10:19,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 13:10:19,183 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 13:10:19,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:10:19,213 INFO L225 Difference]: With dead ends: 779 [2020-09-25 13:10:19,213 INFO L226 Difference]: Without dead ends: 552 [2020-09-25 13:10:19,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:10:19,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-09-25 13:10:19,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 475. [2020-09-25 13:10:19,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-09-25 13:10:19,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 536 transitions. [2020-09-25 13:10:19,412 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 536 transitions. Word has length 148 [2020-09-25 13:10:19,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:10:19,413 INFO L479 AbstractCegarLoop]: Abstraction has 475 states and 536 transitions. [2020-09-25 13:10:19,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:10:19,413 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 536 transitions. [2020-09-25 13:10:19,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 13:10:19,419 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:10:19,420 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] [2020-09-25 13:10:19,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:10:19,421 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:10:19,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:10:19,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1747225075, now seen corresponding path program 1 times [2020-09-25 13:10:19,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:10:19,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647995441] [2020-09-25 13:10:19,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:10:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:19,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:19,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:20,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:20,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:22,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:23,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:23,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:23,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:24,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:24,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-25 13:10:24,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 13:10:24,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-09-25 13:10:24,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:24,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:10:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:10:24,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-25 13:10:24,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:10:24,943 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:10:24,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:10:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:25,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:25,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:25,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 13:10:25,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:25,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 13:10:25,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:25,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:25,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:25,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:25,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:10:25,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:25,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:10:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:25,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:25,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:25,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:25,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:25,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:10:25,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:25,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:25,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:25,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:25,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:10:25,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:10:25,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 13:10:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:25,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:25,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:25,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:25,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:25,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:10:25,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:25,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:25,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:25,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:25,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:10:25,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:25,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 13:10:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:25,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:25,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:25,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:25,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:25,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:10:25,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:25,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:25,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:25,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:25,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:10:25,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:25,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:10:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:25,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:25,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:25,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:25,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:25,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:10:25,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:25,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:25,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:25,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:25,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:10:25,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:25,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:10:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:25,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:25,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:25,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:10:25,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:25,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:10:25,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:25,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:25,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:25,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:25,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:10:25,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:25,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:10:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:25,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:25,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:25,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:10:25,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:25,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:10:25,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:25,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:25,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:25,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:25,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:10:25,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:25,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 13:10:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:25,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:25,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:25,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:25,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:25,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 13:10:25,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:10:25,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 13:10:25,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:25,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:25,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:25,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:25,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 13:10:25,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:25,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:10:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:25,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:25,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:25,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:25,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:10:25,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:10:25,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:10:25,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:25,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:25,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:10:25,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 13:10:25,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:10:25,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:25,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:10:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:25,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:25,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:25,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:10:25,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:25,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:10:25,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:25,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:25,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:10:25,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:10:25,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:10:25,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:25,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:10:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:25,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:25,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:25,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:25,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:25,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:10:25,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:25,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:10:25,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:25,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 13:10:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:25,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:25,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:25,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:25,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:25,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:10:25,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:25,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:25,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:10:25,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:25,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:10:25,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:25,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 13:10:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:25,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:25,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:25,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:25,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:25,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:10:25,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:25,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:10:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:25,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:25,545 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 13:10:25,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647995441] [2020-09-25 13:10:25,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:10:25,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 13:10:25,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555428409] [2020-09-25 13:10:25,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 13:10:25,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:10:25,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 13:10:25,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:10:25,550 INFO L87 Difference]: Start difference. First operand 475 states and 536 transitions. Second operand 13 states. [2020-09-25 13:10:26,206 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:10:27,395 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:10:28,062 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:10:28,398 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 13:10:28,825 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:10:29,155 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:10:29,478 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 13:10:29,820 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:10:30,132 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:10:30,627 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:10:31,417 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:10:31,910 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:10:32,254 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:10:32,687 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:10:33,084 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:10:33,478 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:10:34,090 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:10:34,403 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:10:34,722 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:10:35,183 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:10:35,737 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:10:36,076 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 13:10:36,524 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:10:37,581 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:10:37,967 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 13:10:38,321 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:10:38,771 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 13:10:39,149 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:10:39,760 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:10:43,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:10:43,241 INFO L93 Difference]: Finished difference Result 2095 states and 2735 transitions. [2020-09-25 13:10:43,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-09-25 13:10:43,242 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 180 [2020-09-25 13:10:43,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:10:43,255 INFO L225 Difference]: With dead ends: 2095 [2020-09-25 13:10:43,256 INFO L226 Difference]: Without dead ends: 1643 [2020-09-25 13:10:43,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2260 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=1114, Invalid=5206, Unknown=0, NotChecked=0, Total=6320 [2020-09-25 13:10:43,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2020-09-25 13:10:43,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1266. [2020-09-25 13:10:43,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1266 states. [2020-09-25 13:10:43,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1433 transitions. [2020-09-25 13:10:43,504 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1433 transitions. Word has length 180 [2020-09-25 13:10:43,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:10:43,507 INFO L479 AbstractCegarLoop]: Abstraction has 1266 states and 1433 transitions. [2020-09-25 13:10:43,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 13:10:43,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1433 transitions. [2020-09-25 13:10:43,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 13:10:43,514 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:10:43,514 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] [2020-09-25 13:10:43,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:10:43,515 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:10:43,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:10:43,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1017465386, now seen corresponding path program 1 times [2020-09-25 13:10:43,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:10:43,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488751295] [2020-09-25 13:10:43,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:10:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:43,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:43,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:44,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:45,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:48,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:48,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 13:10:48,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:10:48,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 13:10:48,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:48,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:10:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 13:10:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 13:10:48,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:48,948 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:10:48,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:10:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:48,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:49,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:49,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 13:10:49,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:49,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 13:10:49,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:49,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:49,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:49,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:49,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:49,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:49,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:10:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:49,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:49,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:49,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:49,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:49,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:10:49,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:49,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:49,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:10:49,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 13:10:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:49,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:49,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:49,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:49,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:49,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:10:49,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:49,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:49,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:49,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:49,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:10:49,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 13:10:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:49,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:49,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:49,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:49,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:49,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:10:49,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:49,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:49,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:49,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:49,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:49,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:10:49,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:10:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:49,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:49,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:49,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:49,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:49,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:10:49,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:49,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:49,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:49,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:49,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:49,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:10:49,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:10:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:49,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:49,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:49,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:10:49,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:49,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:10:49,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:49,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:49,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:49,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:49,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 13:10:49,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:10:49,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 13:10:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:49,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:49,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:49,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:10:49,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:49,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:10:49,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:49,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:49,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:49,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:49,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:10:49,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:10:49,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 13:10:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:49,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:49,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:49,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:10:49,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:49,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:10:49,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:49,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:49,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:49,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:49,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:10:49,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:10:49,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 13:10:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:49,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:49,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:49,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:49,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:49,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:10:49,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:49,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:49,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:49,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:49,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:10:49,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:10:49,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 13:10:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:49,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:49,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:49,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:49,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:49,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:10:49,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:49,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:49,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:49,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:49,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:10:49,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:49,357 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 13:10:49,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488751295] [2020-09-25 13:10:49,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:10:49,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:10:49,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406280263] [2020-09-25 13:10:49,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:10:49,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:10:49,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:10:49,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:10:49,362 INFO L87 Difference]: Start difference. First operand 1266 states and 1433 transitions. Second operand 7 states. [2020-09-25 13:10:49,899 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:10:53,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:10:53,628 INFO L93 Difference]: Finished difference Result 2973 states and 3743 transitions. [2020-09-25 13:10:53,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 13:10:53,628 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-09-25 13:10:53,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:10:53,655 INFO L225 Difference]: With dead ends: 2973 [2020-09-25 13:10:53,656 INFO L226 Difference]: Without dead ends: 2970 [2020-09-25 13:10:53,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 13:10:53,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2020-09-25 13:10:54,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 1940. [2020-09-25 13:10:54,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1940 states. [2020-09-25 13:10:54,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 2292 transitions. [2020-09-25 13:10:54,116 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 2292 transitions. Word has length 172 [2020-09-25 13:10:54,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:10:54,118 INFO L479 AbstractCegarLoop]: Abstraction has 1940 states and 2292 transitions. [2020-09-25 13:10:54,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:10:54,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 2292 transitions. [2020-09-25 13:10:54,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-09-25 13:10:54,124 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:10:54,124 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:10:54,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:10:54,125 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:10:54,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:10:54,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1724115307, now seen corresponding path program 1 times [2020-09-25 13:10:54,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:10:54,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679429540] [2020-09-25 13:10:54,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:10:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:54,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:54,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:54,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:55,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:55,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking...