/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:27:50,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:27:50,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:27:50,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:27:50,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:27:50,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:27:50,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:27:50,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:27:50,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:27:50,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:27:50,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:27:50,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:27:50,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:27:50,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:27:50,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:27:50,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:27:50,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:27:50,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:27:50,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:27:50,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:27:50,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:27:50,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:27:50,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:27:50,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:27:50,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:27:50,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:27:50,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:27:50,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:27:50,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:27:50,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:27:50,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:27:50,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:27:50,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:27:50,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:27:50,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:27:50,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:27:50,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:27:50,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:27:50,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:27:50,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:27:50,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:27:50,676 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:27:50,737 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:27:50,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:27:50,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:27:50,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:27:50,743 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:27:50,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:27:50,744 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:27:50,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:27:50,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:27:50,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:27:50,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:27:50,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:27:50,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:27:50,745 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:27:50,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:27:50,745 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:27:50,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:27:50,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:27:50,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:27:50,747 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:27:50,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:27:50,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:27:50,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:27:50,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:27:50,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:27:50,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:27:50,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:27:50,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:27:50,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:27:50,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:27:51,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:27:51,216 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:27:51,221 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:27:51,223 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:27:51,224 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:27:51,225 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2020-09-25 06:27:51,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/edaf5e2f3/e61d281c2e3048dba9a1031803d6e108/FLAGce78aae76 [2020-09-25 06:27:51,965 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:27:51,966 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2020-09-25 06:27:51,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/edaf5e2f3/e61d281c2e3048dba9a1031803d6e108/FLAGce78aae76 [2020-09-25 06:27:52,184 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/edaf5e2f3/e61d281c2e3048dba9a1031803d6e108 [2020-09-25 06:27:52,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:27:52,204 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:27:52,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:27:52,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:27:52,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:27:52,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:27:52" (1/1) ... [2020-09-25 06:27:52,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@186d1561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:52, skipping insertion in model container [2020-09-25 06:27:52,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:27:52" (1/1) ... [2020-09-25 06:27:52,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:27:52,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:27:52,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:27:52,651 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:27:52,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:27:52,951 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:27:52,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:52 WrapperNode [2020-09-25 06:27:52,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:27:52,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:27:52,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:27:52,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:27:52,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:52" (1/1) ... [2020-09-25 06:27:52,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:52" (1/1) ... [2020-09-25 06:27:52,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:52" (1/1) ... [2020-09-25 06:27:52,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:52" (1/1) ... [2020-09-25 06:27:53,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:52" (1/1) ... [2020-09-25 06:27:53,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:52" (1/1) ... [2020-09-25 06:27:53,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:52" (1/1) ... [2020-09-25 06:27:53,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:27:53,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:27:53,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:27:53,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:27:53,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:27:53,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:27:53,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:27:53,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:27:53,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:27:53,136 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:27:53,136 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:27:53,137 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:27:53,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:27:53,138 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:27:53,138 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:27:53,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:27:53,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:27:53,139 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:27:53,139 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:27:53,139 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:27:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:27:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:27:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:27:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:27:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:27:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:27:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:27:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:27:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:27:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:27:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:27:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:27:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:27:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:27:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:27:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:27:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:27:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:27:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 06:27:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:27:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:27:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:27:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:27:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:27:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:27:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:27:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:27:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:27:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:27:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:27:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:27:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:27:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:27:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:27:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:27:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:27:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:27:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:27:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:27:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:27:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:27:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:27:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:27:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:27:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:27:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:27:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:27:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:27:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:27:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:27:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:27:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:27:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 06:27:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:27:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:27:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:27:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:27:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:27:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:27:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:27:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:27:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:27:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:27:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:27:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:27:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:27:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:27:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:27:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:27:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:27:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:27:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:27:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:27:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:27:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:27:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:27:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:27:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:27:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:27:54,385 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:27:54,385 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:27:54,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:27:54 BoogieIcfgContainer [2020-09-25 06:27:54,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:27:54,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:27:54,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:27:54,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:27:54,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:27:52" (1/3) ... [2020-09-25 06:27:54,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12bba354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:27:54, skipping insertion in model container [2020-09-25 06:27:54,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:52" (2/3) ... [2020-09-25 06:27:54,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12bba354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:27:54, skipping insertion in model container [2020-09-25 06:27:54,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:27:54" (3/3) ... [2020-09-25 06:27:54,407 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2020-09-25 06:27:54,419 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:27:54,433 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:27:54,455 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:27:54,490 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:27:54,490 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:27:54,491 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:27:54,491 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:27:54,491 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:27:54,491 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:27:54,491 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:27:54,491 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:27:54,523 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-09-25 06:27:54,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 06:27:54,542 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:27:54,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:27:54,544 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:27:54,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:27:54,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1194640378, now seen corresponding path program 1 times [2020-09-25 06:27:54,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:27:54,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4463412] [2020-09-25 06:27:54,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:27:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:55,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:55,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:55,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:57,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:57,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:59,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:59,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 06:27:59,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:27:59,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-09-25 06:27:59,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:59,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:59,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:59,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:27:59,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:59,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 06:28:00,374 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:28:00,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:00,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:00,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:00,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:28:00,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:00,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 06:28:00,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:00,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:00,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:00,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:00,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:00,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:28:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:00,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:00,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:00,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:00,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:00,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:28:00,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:00,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:00,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:00,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:00,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:00,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:00,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:28:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:00,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:00,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:00,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:00,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:00,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:00,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:00,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:00,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:00,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:00,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:28:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:00,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:00,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:00,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:00,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:00,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:28:00,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:00,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:00,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:00,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:00,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:00,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:00,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:28:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:00,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:00,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:00,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:00,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:00,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:00,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:00,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:00,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:00,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:00,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:00,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:00,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:28:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:00,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:00,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:00,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:00,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:00,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:00,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:00,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:00,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:00,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:00,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:00,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:00,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:28:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:00,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:00,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:00,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:00,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:00,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:00,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:00,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:00,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:00,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:00,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:00,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:00,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:28:00,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [4463412] [2020-09-25 06:28:00,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:00,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:28:00,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678222818] [2020-09-25 06:28:00,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:28:00,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:00,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:28:00,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:28:00,775 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2020-09-25 06:28:02,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:02,328 INFO L93 Difference]: Finished difference Result 489 states and 580 transitions. [2020-09-25 06:28:02,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:28:02,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 06:28:02,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:02,352 INFO L225 Difference]: With dead ends: 489 [2020-09-25 06:28:02,352 INFO L226 Difference]: Without dead ends: 302 [2020-09-25 06:28:02,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:28:02,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-09-25 06:28:02,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 261. [2020-09-25 06:28:02,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 06:28:02,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 283 transitions. [2020-09-25 06:28:02,483 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 283 transitions. Word has length 142 [2020-09-25 06:28:02,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:02,484 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 283 transitions. [2020-09-25 06:28:02,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:28:02,485 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 283 transitions. [2020-09-25 06:28:02,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 06:28:02,489 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:02,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:28:02,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:28:02,490 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:02,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:02,491 INFO L82 PathProgramCache]: Analyzing trace with hash -484006528, now seen corresponding path program 1 times [2020-09-25 06:28:02,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:02,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697597200] [2020-09-25 06:28:02,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:02,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:02,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:03,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:04,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:07,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:07,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 06:28:07,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:28:07,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 06:28:07,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:07,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 06:28:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 06:28:07,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:08,026 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:28:08,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:08,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:08,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:08,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:28:08,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:08,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-25 06:28:08,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:08,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:08,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:08,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:08,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 06:28:08,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:08,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:28:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:08,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:08,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:08,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:08,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:08,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:28:08,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:08,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:08,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:08,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:08,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:28:08,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:08,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:28:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:08,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:08,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:08,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:08,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:08,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:28:08,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:08,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:08,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:08,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:08,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:28:08,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:08,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:28:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:08,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:08,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:08,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:08,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:08,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:28:08,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:08,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:08,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:28:08,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:08,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:28:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:08,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:08,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:08,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:08,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:08,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:28:08,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:08,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:08,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:08,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:08,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:28:08,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:28:08,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:28:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:08,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:08,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:08,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:08,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:08,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:08,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:08,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:08,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:08,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:08,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:28:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:08,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:08,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:08,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:08,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:08,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:08,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:08,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:08,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:08,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:08,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:08,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:08,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:28:08,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697597200] [2020-09-25 06:28:08,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:08,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:28:08,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509926931] [2020-09-25 06:28:08,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:28:08,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:08,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:28:08,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:28:08,492 INFO L87 Difference]: Start difference. First operand 261 states and 283 transitions. Second operand 4 states. [2020-09-25 06:28:09,130 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:28:10,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:10,066 INFO L93 Difference]: Finished difference Result 453 states and 521 transitions. [2020-09-25 06:28:10,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:28:10,067 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 06:28:10,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:10,073 INFO L225 Difference]: With dead ends: 453 [2020-09-25 06:28:10,078 INFO L226 Difference]: Without dead ends: 302 [2020-09-25 06:28:10,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:28:10,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-09-25 06:28:10,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 261. [2020-09-25 06:28:10,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 06:28:10,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 282 transitions. [2020-09-25 06:28:10,132 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 282 transitions. Word has length 143 [2020-09-25 06:28:10,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:10,133 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 282 transitions. [2020-09-25 06:28:10,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:28:10,133 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 282 transitions. [2020-09-25 06:28:10,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 06:28:10,136 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:10,136 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] [2020-09-25 06:28:10,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:28:10,137 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:10,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:10,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1452522798, now seen corresponding path program 1 times [2020-09-25 06:28:10,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:10,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434089489] [2020-09-25 06:28:10,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:10,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:10,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:10,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:12,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:12,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:13,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:14,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 06:28:15,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:28:15,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 06:28:15,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:28:15,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 06:28:15,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 06:28:15,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,496 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:28:15,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:28:15,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:15,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 06:28:15,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:15,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:28:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:15,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:15,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:28:15,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:15,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:15,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:15,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:28:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:15,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:15,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:15,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:15,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:15,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:15,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:28:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:15,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:15,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:15,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:15,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:15,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:15,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:28:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:15,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:15,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:28:15,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:15,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:15,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:15,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:28:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:28:15,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:28:15,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:28:15,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:28:15,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:28:15,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:28:15,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:28:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:28:15,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:15,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:28:15,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:28:15,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:28:15,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:28:15,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:28:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:15,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:15,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:15,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:15,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:15,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:28:15,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 06:28:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:15,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:15,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:28:15,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:15,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:15,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:15,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 06:28:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:15,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:15,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:15,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:15,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:15,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:15,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:15,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:15,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:15,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:15,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:15,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:15,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:28:15,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [434089489] [2020-09-25 06:28:15,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:15,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:28:15,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750988575] [2020-09-25 06:28:15,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:28:15,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:15,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:28:15,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:28:15,784 INFO L87 Difference]: Start difference. First operand 261 states and 282 transitions. Second operand 6 states. [2020-09-25 06:28:16,361 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:28:17,759 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:28:19,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:19,072 INFO L93 Difference]: Finished difference Result 618 states and 742 transitions. [2020-09-25 06:28:19,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:28:19,073 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-09-25 06:28:19,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:19,086 INFO L225 Difference]: With dead ends: 618 [2020-09-25 06:28:19,086 INFO L226 Difference]: Without dead ends: 467 [2020-09-25 06:28:19,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:28:19,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-09-25 06:28:19,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 384. [2020-09-25 06:28:19,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-09-25 06:28:19,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 427 transitions. [2020-09-25 06:28:19,165 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 427 transitions. Word has length 165 [2020-09-25 06:28:19,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:19,166 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 427 transitions. [2020-09-25 06:28:19,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:28:19,166 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 427 transitions. [2020-09-25 06:28:19,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 06:28:19,169 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:19,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:28:19,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:28:19,169 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:19,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:19,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1067841542, now seen corresponding path program 1 times [2020-09-25 06:28:19,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:19,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [792522458] [2020-09-25 06:28:19,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:19,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:20,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:20,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:20,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:21,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:24,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:24,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 06:28:24,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:28:24,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 06:28:24,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:24,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:24,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:28:24,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 06:28:24,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 06:28:24,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:24,686 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:28:24,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:24,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:24,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:24,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:28:24,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:24,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 06:28:24,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:24,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:24,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:24,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:24,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:24,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:24,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:28:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:24,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:24,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:24,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:24,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:24,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:24,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:24,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:24,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:24,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:24,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:24,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:24,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:28:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:24,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:24,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:24,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:24,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:24,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:24,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:24,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:24,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:24,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:24,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:24,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:24,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:28:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:24,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:24,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:24,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:24,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:24,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:28:24,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:24,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:24,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:24,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:24,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:24,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:24,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:28:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:24,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:24,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:24,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:24,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:24,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:24,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:24,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:24,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:24,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:24,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:24,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:24,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:28:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:24,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:24,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:25,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:25,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:28:25,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:28:25,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 06:28:25,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:25,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:25,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:25,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:28:25,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:25,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:28:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:25,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:25,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:25,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:28:25,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:25,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 06:28:25,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:25,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:25,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:25,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:25,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:28:25,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:25,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:28:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:25,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:25,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:25,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:28:25,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:25,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 06:28:25,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:25,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:25,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:25,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:25,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 06:28:25,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:28:25,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:28:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:25,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:25,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:25,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:28:25,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:25,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:28:25,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:25,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:25,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:25,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:25,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:25,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:28:25,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:28:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:25,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:25,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:25,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:25,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:25,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:25,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:25,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:25,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:25,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:25,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:28:25,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:28:25,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 06:28:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:25,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:25,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:25,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:25,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:25,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:28:25,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:25,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:25,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:25,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:25,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:28:25,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:25,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 06:28:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:25,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:25,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:25,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:25,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:25,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:28:25,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:25,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:25,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:28:25,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:25,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:28:25,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:25,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:28:25,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [792522458] [2020-09-25 06:28:25,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:25,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:28:25,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561082278] [2020-09-25 06:28:25,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:28:25,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:25,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:28:25,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:28:25,369 INFO L87 Difference]: Start difference. First operand 384 states and 427 transitions. Second operand 9 states. [2020-09-25 06:28:25,906 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:28:27,754 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 189 [2020-09-25 06:28:28,064 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 06:28:28,700 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 191 [2020-09-25 06:28:29,053 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 06:28:29,400 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:28:29,774 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:28:30,095 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:28:30,421 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:28:30,754 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:28:32,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:32,155 INFO L93 Difference]: Finished difference Result 460 states and 535 transitions. [2020-09-25 06:28:32,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 06:28:32,155 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2020-09-25 06:28:32,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:32,163 INFO L225 Difference]: With dead ends: 460 [2020-09-25 06:28:32,163 INFO L226 Difference]: Without dead ends: 457 [2020-09-25 06:28:32,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2020-09-25 06:28:32,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-09-25 06:28:32,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 384. [2020-09-25 06:28:32,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-09-25 06:28:32,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 426 transitions. [2020-09-25 06:28:32,228 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 426 transitions. Word has length 189 [2020-09-25 06:28:32,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:32,229 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 426 transitions. [2020-09-25 06:28:32,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:28:32,229 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 426 transitions. [2020-09-25 06:28:32,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 06:28:32,232 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:32,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:28:32,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:28:32,233 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:32,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:32,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1791967861, now seen corresponding path program 1 times [2020-09-25 06:28:32,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:32,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925564192] [2020-09-25 06:28:32,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:32,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:32,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:37,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:37,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 06:28:37,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:28:37,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 06:28:37,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:37,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:37,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:28:37,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 06:28:37,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:28:37,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:37,601 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:28:37,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:37,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:37,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:37,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:28:37,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:37,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 06:28:37,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:37,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:37,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:37,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:28:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:37,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:37,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:37,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:37,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:37,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:37,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:37,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:37,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:37,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:37,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:37,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:37,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:28:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:37,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:37,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:37,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:37,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:37,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:37,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:37,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:37,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:37,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:37,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:37,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:37,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:28:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:37,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:37,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:37,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:37,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:37,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:28:37,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:37,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:37,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:37,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:37,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:37,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:37,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:28:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:37,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:37,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:37,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:37,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:37,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:37,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:37,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:37,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:37,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:37,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:37,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:37,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:28:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:37,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:37,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:37,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:28:37,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:37,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 06:28:37,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:37,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:37,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:28:37,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 06:28:37,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:28:37,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:37,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:28:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:37,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:37,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:37,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 06:28:37,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:37,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 06:28:37,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:37,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:37,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:28:37,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 06:28:37,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:28:37,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:37,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:28:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:37,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:38,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:38,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:28:38,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:38,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 06:28:38,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:38,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:38,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:28:38,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:38,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 06:28:38,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:38,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:28:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:38,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:38,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:38,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:28:38,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:38,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:28:38,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:38,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:38,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:38,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:38,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:38,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:38,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:28:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:38,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:38,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:38,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:28:38,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:38,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:38,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:38,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:38,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:38,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 06:28:38,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:38,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:38,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 06:28:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:38,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:38,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:38,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:38,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:38,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:38,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:38,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:38,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:38,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:38,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:38,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:38,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 06:28:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:38,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:38,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:38,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:38,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:38,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:38,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:38,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:38,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:38,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:38,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:38,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:38,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:28:38,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925564192] [2020-09-25 06:28:38,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:38,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:28:38,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267520812] [2020-09-25 06:28:38,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:28:38,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:38,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:28:38,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:28:38,174 INFO L87 Difference]: Start difference. First operand 384 states and 426 transitions. Second operand 9 states.