/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:13:02,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:13:02,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:13:02,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:13:02,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:13:02,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:13:02,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:13:02,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:13:02,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:13:02,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:13:02,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:13:02,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:13:02,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:13:02,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:13:02,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:13:02,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:13:02,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:13:02,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:13:02,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:13:02,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:13:02,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:13:02,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:13:02,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:13:02,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:13:02,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:13:02,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:13:02,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:13:02,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:13:02,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:13:02,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:13:02,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:13:02,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:13:02,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:13:02,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:13:02,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:13:02,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:13:02,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:13:02,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:13:02,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:13:02,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:13:02,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:13:02,964 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 14:13:03,009 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:13:03,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:13:03,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:13:03,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:13:03,012 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:13:03,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:13:03,013 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:13:03,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:13:03,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:13:03,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:13:03,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:13:03,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:13:03,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:13:03,015 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:13:03,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:13:03,016 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:13:03,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:13:03,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:13:03,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:13:03,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:13:03,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:13:03,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:13:03,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:13:03,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:13:03,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:13:03,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:13:03,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:13:03,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:13:03,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:13:03,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:13:03,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:13:03,484 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:13:03,489 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:13:03,491 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:13:03,492 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:13:03,493 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-09-25 14:13:03,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7ffd811b/435103f0a6454d06a8656afdad6a62df/FLAG47da89fb5 [2020-09-25 14:13:04,194 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:13:04,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-09-25 14:13:04,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7ffd811b/435103f0a6454d06a8656afdad6a62df/FLAG47da89fb5 [2020-09-25 14:13:04,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7ffd811b/435103f0a6454d06a8656afdad6a62df [2020-09-25 14:13:04,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:13:04,435 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:13:04,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:13:04,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:13:04,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:13:04,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:13:04" (1/1) ... [2020-09-25 14:13:04,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6afcb89a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:04, skipping insertion in model container [2020-09-25 14:13:04,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:13:04" (1/1) ... [2020-09-25 14:13:04,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:13:04,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:13:05,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:13:05,061 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:13:05,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:13:05,178 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:13:05,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:05 WrapperNode [2020-09-25 14:13:05,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:13:05,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:13:05,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:13:05,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:13:05,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:05" (1/1) ... [2020-09-25 14:13:05,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:05" (1/1) ... [2020-09-25 14:13:05,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:05" (1/1) ... [2020-09-25 14:13:05,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:05" (1/1) ... [2020-09-25 14:13:05,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:05" (1/1) ... [2020-09-25 14:13:05,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:05" (1/1) ... [2020-09-25 14:13:05,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:05" (1/1) ... [2020-09-25 14:13:05,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:13:05,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:13:05,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:13:05,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:13:05,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:05" (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 14:13:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:13:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:13:05,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:13:05,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:13:05,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:13:05,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:13:05,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:13:05,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:13:05,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:13:05,365 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:13:05,365 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:13:05,365 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:13:05,366 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:13:05,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:13:05,366 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:13:05,366 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:13:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:13:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:13:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:13:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:13:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 14:13:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:13:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:13:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:13:05,369 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:13:05,370 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:13:05,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:13:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:13:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:13:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:13:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:13:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:13:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:13:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:13:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:13:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:13:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:13:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:13:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:13:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:13:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:13:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:13:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:13:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:13:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:13:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:13:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:13:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:13:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:13:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:13:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:13:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:13:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:13:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:13:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:13:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:13:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:13:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:13:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:13:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:13:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:13:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:13:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:13:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:13:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:13:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:13:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:13:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:13:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:13:05,378 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:13:05,378 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:13:05,380 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:13:05,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:13:05,380 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:13:05,380 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:13:05,380 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:13:05,380 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 14:13:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:13:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:13:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:13:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:13:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:13:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:13:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:13:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:13:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:13:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:13:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:13:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:13:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:13:06,564 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:13:06,565 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:13:06,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:13:06 BoogieIcfgContainer [2020-09-25 14:13:06,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:13:06,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:13:06,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:13:06,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:13:06,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:13:04" (1/3) ... [2020-09-25 14:13:06,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@995b366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:13:06, skipping insertion in model container [2020-09-25 14:13:06,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:05" (2/3) ... [2020-09-25 14:13:06,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@995b366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:13:06, skipping insertion in model container [2020-09-25 14:13:06,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:13:06" (3/3) ... [2020-09-25 14:13:06,582 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2020-09-25 14:13:06,594 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:13:06,603 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:13:06,625 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:13:06,659 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:13:06,659 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:13:06,659 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:13:06,660 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:13:06,660 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:13:06,660 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:13:06,660 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:13:06,660 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:13:06,686 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-25 14:13:06,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:13:06,703 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:06,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:13:06,705 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:06,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:06,712 INFO L82 PathProgramCache]: Analyzing trace with hash -304356178, now seen corresponding path program 1 times [2020-09-25 14:13:06,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:06,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654584101] [2020-09-25 14:13:06,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:07,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:07,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:07,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:08,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:09,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:12,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:12,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:13:12,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:13:12,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 14:13:12,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:12,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:12,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:12,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:13:12,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 14:13:12,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 14:13:12,568 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:13:12,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:13:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:12,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:12,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:12,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:13:12,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:12,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-09-25 14:13:12,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:12,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:12,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:12,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:12,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:13:12,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:12,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:13:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:12,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:12,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:12,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:12,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:12,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:12,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:12,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:12,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:12,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:12,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:12,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:12,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:13:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:12,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:12,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:12,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:12,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:12,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:13:12,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:12,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:13,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:13,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:13,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:13,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:13,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:13:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:13,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:13,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:13,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:13,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:13,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:13:13,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:13,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:13,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:13,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:13,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:13,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:13,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:13:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:13,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:13,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:13,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:13,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:13,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:13:13,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:13,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:13,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:13,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:13,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:13,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:13:13,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:13:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:13,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:13,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:13,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:13,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:13,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:13,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:13,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:13,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:13,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:13,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:13,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:13,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:13:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:13,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:13,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:13,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:13,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:13,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:13,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:13,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:13,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:13,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:13,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:13,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:13,101 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 14:13:13,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654584101] [2020-09-25 14:13:13,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:13:13,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:13:13,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942248140] [2020-09-25 14:13:13,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:13:13,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:13:13,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:13:13,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:13:13,150 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 4 states. [2020-09-25 14:13:13,871 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:13:14,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:13:14,971 INFO L93 Difference]: Finished difference Result 455 states and 541 transitions. [2020-09-25 14:13:14,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:13:14,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 14:13:14,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:13:14,994 INFO L225 Difference]: With dead ends: 455 [2020-09-25 14:13:14,994 INFO L226 Difference]: Without dead ends: 285 [2020-09-25 14:13:15,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:13:15,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-25 14:13:15,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 244. [2020-09-25 14:13:15,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-25 14:13:15,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 263 transitions. [2020-09-25 14:13:15,141 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 263 transitions. Word has length 142 [2020-09-25 14:13:15,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:13:15,142 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 263 transitions. [2020-09-25 14:13:15,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:13:15,142 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 263 transitions. [2020-09-25 14:13:15,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 14:13:15,147 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:15,147 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] [2020-09-25 14:13:15,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:13:15,148 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:15,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:15,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1993028941, now seen corresponding path program 1 times [2020-09-25 14:13:15,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:15,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1149079784] [2020-09-25 14:13:15,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:15,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:15,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:15,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:18,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:20,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:20,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:20,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:13:20,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:13:20,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 14:13:20,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:20,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:20,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:13:20,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:13:20,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 14:13:20,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:20,599 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:13:20,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:13:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:20,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:20,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:20,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:13:20,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:20,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-25 14:13:20,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:20,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:20,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:20,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:20,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:13:20,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:20,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:13:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:20,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:20,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:20,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:20,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:20,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:20,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:20,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:20,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:20,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:20,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:20,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:20,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:13:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:20,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:20,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:20,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:20,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:20,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:20,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:20,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:20,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:20,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:20,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:20,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:20,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:13:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:20,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:21,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:21,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:21,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:21,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:13:21,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:21,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:21,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:21,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:21,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:21,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:21,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:13:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:21,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:21,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:21,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:21,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:21,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:21,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:21,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:21,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:21,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:21,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:21,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:21,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:13:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:21,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:21,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:21,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:13:21,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:21,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:13:21,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:21,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:21,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:21,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:21,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:13:21,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:21,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:13:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:21,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:21,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:21,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:21,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:21,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:21,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:21,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:21,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:21,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:21,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:21,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:21,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 14:13:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:21,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:21,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:21,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:21,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:21,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:13:21,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:21,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:21,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:13:21,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:21,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:21,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:21,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 14:13:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:21,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:21,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:21,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:21,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:21,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:21,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:21,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:21,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:21,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:21,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:21,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:21,138 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 14:13:21,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1149079784] [2020-09-25 14:13:21,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:13:21,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:13:21,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007223460] [2020-09-25 14:13:21,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:13:21,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:13:21,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:13:21,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:13:21,143 INFO L87 Difference]: Start difference. First operand 244 states and 263 transitions. Second operand 9 states. [2020-09-25 14:13:21,637 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:13:22,816 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:13:23,195 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:13:23,555 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:23,933 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:13:24,279 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:13:24,814 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:13:25,187 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:13:25,614 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:13:27,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:13:27,234 INFO L93 Difference]: Finished difference Result 621 states and 756 transitions. [2020-09-25 14:13:27,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:13:27,237 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 14:13:27,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:13:27,244 INFO L225 Difference]: With dead ends: 621 [2020-09-25 14:13:27,244 INFO L226 Difference]: Without dead ends: 463 [2020-09-25 14:13:27,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 14:13:27,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-09-25 14:13:27,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 353. [2020-09-25 14:13:27,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-09-25 14:13:27,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 387 transitions. [2020-09-25 14:13:27,318 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 387 transitions. Word has length 151 [2020-09-25 14:13:27,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:13:27,319 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 387 transitions. [2020-09-25 14:13:27,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:13:27,319 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 387 transitions. [2020-09-25 14:13:27,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 14:13:27,323 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:27,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:13:27,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:13:27,324 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:27,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:27,324 INFO L82 PathProgramCache]: Analyzing trace with hash 700351016, now seen corresponding path program 1 times [2020-09-25 14:13:27,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:27,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354964938] [2020-09-25 14:13:27,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:27,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:27,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:28,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:29,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:31,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:31,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 14:13:31,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:13:31,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4535 [2020-09-25 14:13:31,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:31,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:31,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:13:31,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:13:31,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 14:13:31,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:13:32,250 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:13:32,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:13:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:13:32,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-25 14:13:32,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:32,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:32,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:13:32,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:13:32,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:13:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:32,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:32,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:32,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:32,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:32,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:32,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:13:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:32,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:32,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:32,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:32,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:32,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:32,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:13:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:32,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:13:32,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:32,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:32,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:32,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:32,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:13:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:32,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:32,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:32,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:32,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:32,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:32,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:13:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:13:32,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:13:32,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:32,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:32,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:13:32,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:32,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 14:13:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:13:32,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:13:32,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:13:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:13:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:13:32,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:32,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:13:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:32,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:32,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:32,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:32,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:32,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:32,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 14:13:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:32,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:32,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:32,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:32,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:32,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:32,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 14:13:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:32,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:32,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:32,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:32,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:32,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:13:32,688 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 14:13:32,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354964938] [2020-09-25 14:13:32,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:13:32,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:13:32,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226002839] [2020-09-25 14:13:32,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:13:32,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:13:32,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:13:32,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:13:32,691 INFO L87 Difference]: Start difference. First operand 353 states and 387 transitions. Second operand 7 states. [2020-09-25 14:13:33,190 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:13:34,665 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:13:36,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:13:36,007 INFO L93 Difference]: Finished difference Result 951 states and 1142 transitions. [2020-09-25 14:13:36,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 14:13:36,007 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-09-25 14:13:36,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:13:36,014 INFO L225 Difference]: With dead ends: 951 [2020-09-25 14:13:36,015 INFO L226 Difference]: Without dead ends: 708 [2020-09-25 14:13:36,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-25 14:13:36,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-09-25 14:13:36,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 542. [2020-09-25 14:13:36,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-09-25 14:13:36,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 602 transitions. [2020-09-25 14:13:36,120 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 602 transitions. Word has length 165 [2020-09-25 14:13:36,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:13:36,121 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 602 transitions. [2020-09-25 14:13:36,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:13:36,121 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 602 transitions. [2020-09-25 14:13:36,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 14:13:36,125 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:36,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:36,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:13:36,126 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:36,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:36,126 INFO L82 PathProgramCache]: Analyzing trace with hash 442003639, now seen corresponding path program 1 times [2020-09-25 14:13:36,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:36,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720618447] [2020-09-25 14:13:36,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:36,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:36,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:38,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:38,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:39,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:41,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:41,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 14:13:41,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:13:41,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 14:13:41,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:41,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:41,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:13:41,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:13:41,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-25 14:13:41,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:41,531 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:13:41,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:13:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:41,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:41,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:41,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:13:41,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:41,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 14:13:41,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:41,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:41,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:41,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:41,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:13:41,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:41,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:13:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:41,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:41,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:41,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:41,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:41,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:41,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:41,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:41,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:41,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:41,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:41,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:41,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:13:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:41,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:41,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:41,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:41,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:41,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:13:41,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:41,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:41,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:41,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:41,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:41,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:41,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:13:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:41,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:41,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:41,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:41,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:41,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:13:41,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:41,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:41,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:41,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:41,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:41,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:41,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:13:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:41,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:41,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:41,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:41,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:41,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:41,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:41,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:41,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:41,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:41,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:41,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:41,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:13:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:41,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:41,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:41,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:13:41,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:41,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:13:41,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:41,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:41,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:41,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:41,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:13:41,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:41,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 14:13:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:41,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:41,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:41,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:42,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:42,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:42,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 14:13:42,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:13:42,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 883 [2020-09-25 14:13:42,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:42,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:42,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:13:42,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:13:42,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 14:13:42,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:42,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:13:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:42,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:42,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:42,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:42,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:13:42,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:13:42,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 14:13:42,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:42,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:42,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:42,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:42,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 14:13:42,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:43,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:13:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:43,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:43,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:43,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:13:43,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:43,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:43,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:43,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:43,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:43,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:13:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:43,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:43,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:43,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:43,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:43,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:13:43,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:43,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:43,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:43,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:43,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:43,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:43,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 14:13:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:43,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:43,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:43,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:43,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:43,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:43,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:43,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:43,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:43,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:43,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:43,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:13:43,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 14:13:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:43,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:43,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:43,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:43,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:43,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:13:43,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:43,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:43,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:13:43,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:43,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:43,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:43,144 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 14:13:43,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720618447] [2020-09-25 14:13:43,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:13:43,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 14:13:43,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605824538] [2020-09-25 14:13:43,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:13:43,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:13:43,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:13:43,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:13:43,148 INFO L87 Difference]: Start difference. First operand 542 states and 602 transitions. Second operand 11 states. [2020-09-25 14:13:43,604 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:13:45,106 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:13:45,407 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:45,797 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:13:46,842 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:47,209 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:13:47,544 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:47,879 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:13:48,184 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:48,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:13:48,678 INFO L93 Difference]: Finished difference Result 711 states and 840 transitions. [2020-09-25 14:13:48,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 14:13:48,679 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 189 [2020-09-25 14:13:48,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:13:48,685 INFO L225 Difference]: With dead ends: 711 [2020-09-25 14:13:48,685 INFO L226 Difference]: Without dead ends: 708 [2020-09-25 14:13:48,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2020-09-25 14:13:48,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-09-25 14:13:48,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 542. [2020-09-25 14:13:48,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-09-25 14:13:48,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 601 transitions. [2020-09-25 14:13:48,758 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 601 transitions. Word has length 189 [2020-09-25 14:13:48,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:13:48,759 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 601 transitions. [2020-09-25 14:13:48,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:13:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 601 transitions. [2020-09-25 14:13:48,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 14:13:48,762 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:48,762 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:13:48,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:13:48,763 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:48,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:48,763 INFO L82 PathProgramCache]: Analyzing trace with hash 341878215, now seen corresponding path program 1 times [2020-09-25 14:13:48,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:48,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1323663180] [2020-09-25 14:13:48,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:48,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:48,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking...