/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=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:29:43,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:29:43,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:29:43,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:29:43,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:29:43,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:29:43,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:29:43,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:29:43,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:29:43,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:29:43,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:29:43,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:29:43,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:29:43,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:29:43,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:29:43,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:29:43,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:29:43,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:29:43,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:29:43,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:29:43,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:29:43,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:29:43,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:29:43,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:29:43,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:29:43,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:29:43,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:29:43,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:29:43,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:29:43,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:29:43,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:29:43,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:29:43,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:29:43,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:29:43,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:29:43,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:29:43,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:29:43,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:29:43,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:29:43,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:29:43,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:29:43,892 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 07:29:43,943 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:29:43,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:29:43,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:29:43,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:29:43,947 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:29:43,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:29:43,947 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:29:43,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:29:43,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:29:43,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:29:43,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:29:43,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:29:43,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:29:43,950 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:29:43,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:29:43,951 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:29:43,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:29:43,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:29:43,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:29:43,951 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:29:43,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:29:43,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:29:43,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:29:43,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:29:43,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:29:43,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:29:43,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:29:43,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:29:43,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:29:43,953 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 07:29:44,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:29:44,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:29:44,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:29:44,426 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:29:44,427 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:29:44,428 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product35.cil.c [2020-09-25 07:29:44,508 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9d7e55efb/bc1dc336ff414e7cadaf68a9bc8d0e60/FLAG72637896e [2020-09-25 07:29:45,117 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:29:45,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product35.cil.c [2020-09-25 07:29:45,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9d7e55efb/bc1dc336ff414e7cadaf68a9bc8d0e60/FLAG72637896e [2020-09-25 07:29:45,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9d7e55efb/bc1dc336ff414e7cadaf68a9bc8d0e60 [2020-09-25 07:29:45,406 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:29:45,413 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:29:45,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:29:45,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:29:45,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:29:45,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:29:45" (1/1) ... [2020-09-25 07:29:45,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2830e110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:45, skipping insertion in model container [2020-09-25 07:29:45,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:29:45" (1/1) ... [2020-09-25 07:29:45,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:29:45,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:29:45,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:29:46,026 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:29:46,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:29:46,184 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:29:46,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:46 WrapperNode [2020-09-25 07:29:46,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:29:46,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:29:46,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:29:46,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:29:46,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:46" (1/1) ... [2020-09-25 07:29:46,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:46" (1/1) ... [2020-09-25 07:29:46,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:46" (1/1) ... [2020-09-25 07:29:46,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:46" (1/1) ... [2020-09-25 07:29:46,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:46" (1/1) ... [2020-09-25 07:29:46,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:46" (1/1) ... [2020-09-25 07:29:46,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:46" (1/1) ... [2020-09-25 07:29:46,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:29:46,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:29:46,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:29:46,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:29:46,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:46" (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 07:29:46,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:29:46,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:29:46,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:29:46,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:29:46,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:29:46,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:29:46,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:29:46,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:29:46,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:29:46,363 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:29:46,363 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:29:46,364 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:29:46,364 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:29:46,364 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:29:46,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:29:46,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:29:46,365 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:29:46,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:29:46,365 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:29:46,365 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:29:46,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:29:46,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:29:46,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:29:46,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:29:46,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:29:46,366 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:29:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:29:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:29:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:29:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:29:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:29:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:29:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:29:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:29:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:29:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:29:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:29:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:29:46,369 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:29:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:29:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:29:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:29:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:29:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:29:46,370 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:29:46,370 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:29:46,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:29:46,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:29:46,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:29:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:29:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:29:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:29:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:29:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:29:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:29:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:29:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:29:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:29:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:29:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:29:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:29:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:29:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:29:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:29:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:29:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:29:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:29:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:29:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:29:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:29:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:29:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:29:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:29:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:29:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:29:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:29:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:29:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:29:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:29:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:29:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:29:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:29:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:29:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:29:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:29:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:29:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:29:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:29:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:29:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:29:46,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:29:46,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:29:47,550 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:29:47,551 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:29:47,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:29:47 BoogieIcfgContainer [2020-09-25 07:29:47,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:29:47,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:29:47,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:29:47,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:29:47,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:29:45" (1/3) ... [2020-09-25 07:29:47,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6274970a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:29:47, skipping insertion in model container [2020-09-25 07:29:47,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:46" (2/3) ... [2020-09-25 07:29:47,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6274970a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:29:47, skipping insertion in model container [2020-09-25 07:29:47,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:29:47" (3/3) ... [2020-09-25 07:29:47,568 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2020-09-25 07:29:47,580 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:29:47,592 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:29:47,615 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:29:47,650 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:29:47,650 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:29:47,650 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:29:47,651 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:29:47,651 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:29:47,651 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:29:47,651 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:29:47,651 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:29:47,680 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-25 07:29:47,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 07:29:47,698 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:29:47,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:29:47,701 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:29:47,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:29:47,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1842377824, now seen corresponding path program 1 times [2020-09-25 07:29:47,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:29:47,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6659307] [2020-09-25 07:29:47,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:48,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:48,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:50,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:51,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:51,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:53,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:53,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 07:29:53,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:29:53,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 07:29:53,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:53,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:29:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:53,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:29:53,611 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:29:53,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:29:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:53,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:53,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:53,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:29:53,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:53,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 07:29:53,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:53,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:53,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:53,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:53,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:29:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:53,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:53,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:53,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:53,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:53,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:29:53,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:53,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:53,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:53,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:53,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:53,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:53,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:29:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:53,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:53,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:53,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:53,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:53,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:53,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:53,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:53,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:53,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:53,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:53,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:53,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:29:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:53,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:53,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:53,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:53,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:53,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 07:29:53,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:53,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:53,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:53,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:53,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:53,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:53,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:29:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:53,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:53,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:53,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:53,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:53,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:53,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:53,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:53,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:53,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:53,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:53,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:53,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:29:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:53,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:53,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:53,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:53,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:53,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:53,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:53,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:53,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:53,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:53,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:53,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:53,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 07:29:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:53,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:53,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:53,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:53,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:53,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:53,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:53,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:53,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:53,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:53,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:53,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:53,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:29:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:53,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:53,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:53,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:53,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:53,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:53,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:53,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:53,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:53,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:53,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:53,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:54,007 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 07:29:54,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6659307] [2020-09-25 07:29:54,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:29:54,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:29:54,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282257224] [2020-09-25 07:29:54,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:29:54,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:29:54,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:29:54,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:29:54,050 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 4 states. [2020-09-25 07:29:55,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:29:55,335 INFO L93 Difference]: Finished difference Result 453 states and 537 transitions. [2020-09-25 07:29:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:29:55,337 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 07:29:55,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:29:55,358 INFO L225 Difference]: With dead ends: 453 [2020-09-25 07:29:55,358 INFO L226 Difference]: Without dead ends: 293 [2020-09-25 07:29:55,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:29:55,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-25 07:29:55,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 245. [2020-09-25 07:29:55,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-25 07:29:55,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-09-25 07:29:55,478 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 148 [2020-09-25 07:29:55,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:29:55,479 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-09-25 07:29:55,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:29:55,481 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-09-25 07:29:55,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 07:29:55,488 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:29:55,488 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] [2020-09-25 07:29:55,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:29:55,492 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:29:55,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:29:55,493 INFO L82 PathProgramCache]: Analyzing trace with hash 983801139, now seen corresponding path program 1 times [2020-09-25 07:29:55,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:29:55,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398421910] [2020-09-25 07:29:55,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:55,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:55,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:57,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:58,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:58,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:59,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:00,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:00,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 07:30:00,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:30:00,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 07:30:00,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:00,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:00,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:00,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:30:00,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:30:00,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:00,971 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:00,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:01,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:01,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:01,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:01,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:01,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 07:30:01,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:01,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:01,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:01,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:01,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:01,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:01,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:01,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:01,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:01,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:01,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:01,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:30:01,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:01,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:01,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:01,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:01,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:01,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:01,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:01,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:01,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:01,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:01,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:01,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:01,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:01,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:01,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:01,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:01,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:01,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:01,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:01,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:01,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:01,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:01,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:01,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:01,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:01,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:01,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:01,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:01,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:01,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:01,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:01,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:01,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:01,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:01,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:01,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:01,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:01,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:01,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:01,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:01,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:01,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:01,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:01,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:01,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:01,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:01,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:01,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:01,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:01,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:01,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:01,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:01,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 07:30:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:01,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:01,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:01,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:01,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:01,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:01,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:01,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:01,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:01,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:01,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:01,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:30:01,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 07:30:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:01,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:01,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:01,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:01,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:01,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:01,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:01,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:01,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:01,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:01,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:01,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:01,230 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 07:30:01,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398421910] [2020-09-25 07:30:01,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:01,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:30:01,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91838847] [2020-09-25 07:30:01,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:30:01,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:01,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:30:01,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:30:01,236 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 5 states. [2020-09-25 07:30:02,016 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:30:03,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:03,017 INFO L93 Difference]: Finished difference Result 373 states and 422 transitions. [2020-09-25 07:30:03,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:30:03,018 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 07:30:03,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:03,022 INFO L225 Difference]: With dead ends: 373 [2020-09-25 07:30:03,022 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 07:30:03,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:30:03,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 07:30:03,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 235. [2020-09-25 07:30:03,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-25 07:30:03,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2020-09-25 07:30:03,066 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 149 [2020-09-25 07:30:03,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:03,067 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2020-09-25 07:30:03,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:30:03,067 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2020-09-25 07:30:03,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 07:30:03,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:03,070 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] [2020-09-25 07:30:03,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:30:03,070 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:03,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:03,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1583247536, now seen corresponding path program 1 times [2020-09-25 07:30:03,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:03,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584166525] [2020-09-25 07:30:03,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:03,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:03,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:04,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:05,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:06,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:08,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:08,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 07:30:08,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:30:08,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 07:30:08,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:08,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:08,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:30:08,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 07:30:08,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 07:30:08,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:30:08,531 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:08,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:08,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:08,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:08,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:08,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:08,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-25 07:30:08,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:08,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:08,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:08,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:08,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 07:30:08,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:08,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:08,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:08,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:08,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:08,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:08,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:08,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:08,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:08,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:08,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:08,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:30:08,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:08,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:08,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:08,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:08,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:08,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:08,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:08,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:08,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:08,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:08,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:08,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:30:08,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:08,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:08,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:08,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:08,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:08,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:08,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:30:08,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:08,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:08,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:08,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:08,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:30:08,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:08,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:08,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:08,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:08,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:08,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:08,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:08,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:08,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:30:08,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:08,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:08,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:08,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:08,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:08,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:08,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:08,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:08,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:08,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:08,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:08,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:30:08,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:08,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:30:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:08,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:08,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:08,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:08,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:08,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:08,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:08,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:08,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:08,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:08,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:08,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:08,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 07:30:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:08,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:08,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:08,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:08,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:08,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:08,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:08,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:08,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:08,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:08,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:08,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:30:08,987 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 07:30:08,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [584166525] [2020-09-25 07:30:08,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:08,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:30:08,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973460861] [2020-09-25 07:30:08,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:30:08,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:08,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:30:08,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:30:08,996 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 5 states. [2020-09-25 07:30:09,530 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:30:11,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:11,139 INFO L93 Difference]: Finished difference Result 531 states and 610 transitions. [2020-09-25 07:30:11,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:30:11,139 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-09-25 07:30:11,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:11,144 INFO L225 Difference]: With dead ends: 531 [2020-09-25 07:30:11,145 INFO L226 Difference]: Without dead ends: 411 [2020-09-25 07:30:11,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:30:11,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-09-25 07:30:11,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 343. [2020-09-25 07:30:11,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-09-25 07:30:11,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 376 transitions. [2020-09-25 07:30:11,208 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 376 transitions. Word has length 158 [2020-09-25 07:30:11,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:11,209 INFO L479 AbstractCegarLoop]: Abstraction has 343 states and 376 transitions. [2020-09-25 07:30:11,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:30:11,209 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 376 transitions. [2020-09-25 07:30:11,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 07:30:11,212 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:11,212 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] [2020-09-25 07:30:11,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:30:11,213 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:11,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:11,213 INFO L82 PathProgramCache]: Analyzing trace with hash -247370093, now seen corresponding path program 1 times [2020-09-25 07:30:11,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:11,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651331668] [2020-09-25 07:30:11,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:11,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:11,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:12,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:13,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:14,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:15,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:16,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:16,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 07:30:16,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:30:16,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 07:30:16,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:16,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:16,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:30:16,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 07:30:16,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:30:16,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:30:16,660 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:16,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:16,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:16,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:16,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:16,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:16,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 07:30:16,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:16,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:16,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:16,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:16,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:16,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:16,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:16,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:16,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:16,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:16,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:16,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:16,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:16,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:16,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:16,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:16,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:16,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:16,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:16,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:16,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:16,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:16,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:16,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:30:16,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:16,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:16,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:16,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:16,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:16,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:16,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:16,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:16,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:16,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:16,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:16,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:16,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:16,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:16,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:16,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:16,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:16,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:16,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:16,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:16,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:16,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:16,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:16,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:30:16,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:16,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:16,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:16,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:16,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:16,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:16,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:16,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:16,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:16,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:16,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:16,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:16,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:16,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:16,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:16,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:16,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:16,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:16,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 07:30:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:16,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:16,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:16,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:30:16,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:16,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:30:16,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:16,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:16,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:30:16,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:30:16,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:30:16,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:16,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:30:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:16,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:16,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:16,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:16,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:16,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:16,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:16,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:16,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:16,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:16,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:30:16,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:16,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 07:30:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:16,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:16,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:16,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:16,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:16,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:16,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:16,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:16,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:16,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:16,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:16,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:16,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 07:30:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:16,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:16,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:16,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:16,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:16,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:16,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:16,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:16,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:16,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:16,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:16,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:16,993 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 07:30:16,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651331668] [2020-09-25 07:30:16,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:16,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:30:16,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10943270] [2020-09-25 07:30:16,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:30:16,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:16,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:30:16,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:30:16,996 INFO L87 Difference]: Start difference. First operand 343 states and 376 transitions. Second operand 7 states. [2020-09-25 07:30:17,644 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:30:19,249 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:30:19,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:19,902 INFO L93 Difference]: Finished difference Result 887 states and 1046 transitions. [2020-09-25 07:30:19,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:30:19,909 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 166 [2020-09-25 07:30:19,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:19,914 INFO L225 Difference]: With dead ends: 887 [2020-09-25 07:30:19,915 INFO L226 Difference]: Without dead ends: 659 [2020-09-25 07:30:19,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:30:19,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2020-09-25 07:30:20,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 554. [2020-09-25 07:30:20,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-09-25 07:30:20,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 613 transitions. [2020-09-25 07:30:20,013 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 613 transitions. Word has length 166 [2020-09-25 07:30:20,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:20,014 INFO L479 AbstractCegarLoop]: Abstraction has 554 states and 613 transitions. [2020-09-25 07:30:20,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:30:20,014 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 613 transitions. [2020-09-25 07:30:20,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 07:30:20,017 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:20,017 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] [2020-09-25 07:30:20,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:30:20,017 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:20,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:20,018 INFO L82 PathProgramCache]: Analyzing trace with hash 662442186, now seen corresponding path program 1 times [2020-09-25 07:30:20,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:20,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690310710] [2020-09-25 07:30:20,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:20,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:20,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:20,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:21,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:23,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:25,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:25,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 07:30:25,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:30:25,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 07:30:25,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:25,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:25,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:30:25,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 07:30:25,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 07:30:25,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:30:25,391 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:25,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:25,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:25,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:25,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:25,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:25,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 07:30:25,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:25,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:25,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:25,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:25,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:25,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:25,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:25,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:25,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:25,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:25,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:25,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:25,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:25,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:25,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:25,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:25,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:25,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:25,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:25,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:25,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:25,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:25,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:25,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:30:25,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:25,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:25,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:25,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:25,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:25,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:25,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:25,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:25,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:25,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:25,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:25,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:25,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:30:25,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:25,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:25,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:25,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:25,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:25,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:30:25,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:25,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:25,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:25,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:25,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:25,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:25,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:25,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:25,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:25,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:25,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:25,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:25,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:25,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:25,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:30:25,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:25,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 07:30:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:25,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:25,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:25,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:30:25,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:25,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:25,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:25,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:25,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:25,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:25,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:30:25,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:25,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:30:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:25,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:25,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:25,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:25,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:25,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:25,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:25,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:25,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:25,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:25,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:30:25,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:25,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 07:30:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:25,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:25,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:25,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:25,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:25,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:25,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:25,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:25,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:25,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:25,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:30:25,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:25,664 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 07:30:25,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690310710] [2020-09-25 07:30:25,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:25,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:30:25,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588455532] [2020-09-25 07:30:25,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:30:25,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:25,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:30:25,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:30:25,667 INFO L87 Difference]: Start difference. First operand 554 states and 613 transitions. Second operand 6 states. [2020-09-25 07:30:26,204 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:30:28,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:28,337 INFO L93 Difference]: Finished difference Result 1225 states and 1478 transitions. [2020-09-25 07:30:28,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:30:28,338 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 07:30:28,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:28,349 INFO L225 Difference]: With dead ends: 1225 [2020-09-25 07:30:28,349 INFO L226 Difference]: Without dead ends: 1222 [2020-09-25 07:30:28,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:30:28,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2020-09-25 07:30:28,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1008. [2020-09-25 07:30:28,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1008 states. [2020-09-25 07:30:28,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1141 transitions. [2020-09-25 07:30:28,525 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1141 transitions. Word has length 167 [2020-09-25 07:30:28,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:28,526 INFO L479 AbstractCegarLoop]: Abstraction has 1008 states and 1141 transitions. [2020-09-25 07:30:28,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:30:28,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1141 transitions. [2020-09-25 07:30:28,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 07:30:28,532 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:28,532 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:30:28,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:30:28,533 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:28,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:28,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1981589357, now seen corresponding path program 1 times [2020-09-25 07:30:28,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:28,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195999695] [2020-09-25 07:30:28,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:28,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:28,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:28,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:29,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:31,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:33,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:33,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-09-25 07:30:33,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:30:33,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 07:30:33,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:33,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:30:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 07:30:33,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:30:33,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:30:33,962 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:33,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:33,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking...