/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:58:45,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:58:45,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:58:45,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:58:45,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:58:45,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:58:45,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:58:45,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:58:45,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:58:45,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:58:45,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:58:45,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:58:45,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:58:45,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:58:45,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:58:45,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:58:46,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:58:46,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:58:46,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:58:46,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:58:46,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:58:46,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:58:46,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:58:46,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:58:46,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:58:46,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:58:46,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:58:46,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:58:46,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:58:46,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:58:46,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:58:46,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:58:46,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:58:46,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:58:46,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:58:46,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:58:46,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:58:46,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:58:46,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:58:46,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:58:46,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:58:46,038 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 [2020-09-24 16:58:46,087 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:58:46,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:58:46,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:58:46,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:58:46,091 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:58:46,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:58:46,092 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:58:46,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:58:46,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:58:46,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:58:46,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:58:46,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:58:46,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:58:46,095 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:58:46,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:58:46,095 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:58:46,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:58:46,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:58:46,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:58:46,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:58:46,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:58:46,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:58:46,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:58:46,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:58:46,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:58:46,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:58:46,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:58:46,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:58:46,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:58:46,098 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;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;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;log-additional-information=true; [2020-09-24 16:58:46,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:58:46,556 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:58:46,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:58:46,564 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:58:46,565 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:58:46,567 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2020-09-24 16:58:46,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/198a4c6b8/55cf525a74b2484c8eced708025ca7d8/FLAGbf17a9bc3 [2020-09-24 16:58:47,233 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:58:47,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2020-09-24 16:58:47,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/198a4c6b8/55cf525a74b2484c8eced708025ca7d8/FLAGbf17a9bc3 [2020-09-24 16:58:47,523 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/198a4c6b8/55cf525a74b2484c8eced708025ca7d8 [2020-09-24 16:58:47,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:58:47,540 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:58:47,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:58:47,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:58:47,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:58:47,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:47" (1/1) ... [2020-09-24 16:58:47,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156a129e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:47, skipping insertion in model container [2020-09-24 16:58:47,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:47" (1/1) ... [2020-09-24 16:58:47,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:58:47,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:58:48,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:58:48,136 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:58:48,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:58:48,294 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:58:48,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:48 WrapperNode [2020-09-24 16:58:48,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:58:48,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:58:48,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:58:48,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:58:48,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:48" (1/1) ... [2020-09-24 16:58:48,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:48" (1/1) ... [2020-09-24 16:58:48,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:48" (1/1) ... [2020-09-24 16:58:48,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:48" (1/1) ... [2020-09-24 16:58:48,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:48" (1/1) ... [2020-09-24 16:58:48,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:48" (1/1) ... [2020-09-24 16:58:48,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:48" (1/1) ... [2020-09-24 16:58:48,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:58:48,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:58:48,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:58:48,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:58:48,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:48" (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 [2020-09-24 16:58:48,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:58:48,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:58:48,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:58:48,480 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:58:48,480 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:58:48,480 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:58:48,480 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:58:48,481 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:58:48,481 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:58:48,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:58:48,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:58:48,482 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:58:48,483 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:58:48,483 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 16:58:48,483 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:58:48,484 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:58:48,484 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:58:48,484 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:58:48,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:58:48,485 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:58:48,485 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:58:48,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:58:48,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 16:58:48,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:58:48,486 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:58:48,487 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:58:48,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:58:48,487 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:58:48,487 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:58:48,487 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:58:48,488 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:58:48,488 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:58:48,488 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:58:48,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:58:48,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:58:48,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:58:48,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:58:48,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:58:48,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:58:48,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:58:48,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:58:48,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:58:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:58:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:58:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:58:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:58:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:58:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:58:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:58:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 16:58:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:58:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:58:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:58:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:58:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:58:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:58:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:58:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:58:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:58:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:58:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:58:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 16:58:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:58:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:58:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:58:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:58:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:58:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:58:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:58:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:58:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:58:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:58:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:58:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:58:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:58:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:58:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:58:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:58:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:58:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:58:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:58:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:58:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:58:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:58:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:58:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:58:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:58:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:58:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:58:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:58:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:58:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:58:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:58:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:58:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:58:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:58:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:58:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:58:49,712 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:58:49,713 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:58:49,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:58:49 BoogieIcfgContainer [2020-09-24 16:58:49,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:58:49,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:58:49,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:58:49,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:58:49,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:58:47" (1/3) ... [2020-09-24 16:58:49,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d516e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:58:49, skipping insertion in model container [2020-09-24 16:58:49,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:48" (2/3) ... [2020-09-24 16:58:49,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d516e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:58:49, skipping insertion in model container [2020-09-24 16:58:49,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:58:49" (3/3) ... [2020-09-24 16:58:49,733 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2020-09-24 16:58:49,746 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:58:49,759 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:58:49,784 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:58:49,826 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:58:49,826 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:58:49,826 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:58:49,826 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:58:49,827 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:58:49,828 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:58:49,828 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:58:49,828 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:58:49,869 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-09-24 16:58:49,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 16:58:49,906 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:58:49,908 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] [2020-09-24 16:58:49,908 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:58:49,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:58:49,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1798805574, now seen corresponding path program 1 times [2020-09-24 16:58:49,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:58:49,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [488499825] [2020-09-24 16:58:49,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:58:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:50,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:50,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:51,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:51,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:53,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:05,572 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:05,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 16:59:05,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:59:05,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15233 [2020-09-24 16:59:05,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:05,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 16:59:05,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 16:59:05,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-24 16:59:05,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-24 16:59:06,075 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:06,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:06,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:06,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:06,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:06,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:06,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-09-24 16:59:06,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 16:59:06,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:06,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:06,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:06,528 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:06,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:06,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:06,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:59:06,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:06,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:06,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:06,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:06,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:06,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:06,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:06,551 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:06,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:06,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:06,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 16:59:06,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:06,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:06,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:06,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:06,567 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:06,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:06,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:06,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:59:06,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:06,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:06,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:06,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:06,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:06,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:06,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:06,577 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:06,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:06,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:06,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:06,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:06,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:06,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:06,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:06,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:06,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:06,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:06,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:06,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:06,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:06,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:06,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:06,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:06,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:06,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:59:06,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:06,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:59:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:06,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:06,621 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:06,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:06,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:06,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:59:06,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:06,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:06,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:06,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:59:06,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:06,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:06,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:06,631 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:06,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:06,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:06,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:06,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:06,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:06,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:06,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:06,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:06,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 16:59:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:06,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:06,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:06,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:06,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:06,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:06,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:06,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:06,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:06,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:06,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:06,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 16:59:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:06,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:06,672 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:06,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:06,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:06,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 16:59:06,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:06,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:06,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:06,770 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 16:59:06,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [488499825] [2020-09-24 16:59:06,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:06,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:59:06,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636725004] [2020-09-24 16:59:06,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:59:06,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:06,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:59:06,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:59:06,814 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 9 states. [2020-09-24 16:59:07,448 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:59:08,556 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 16:59:09,232 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 16:59:10,678 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:59:11,050 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 16:59:11,412 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:11,911 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:12,189 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:59:12,496 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:13,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:59:13,454 INFO L93 Difference]: Finished difference Result 622 states and 758 transitions. [2020-09-24 16:59:13,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 16:59:13,457 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 16:59:13,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:59:13,481 INFO L225 Difference]: With dead ends: 622 [2020-09-24 16:59:13,482 INFO L226 Difference]: Without dead ends: 421 [2020-09-24 16:59:13,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-09-24 16:59:13,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-24 16:59:13,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 375. [2020-09-24 16:59:13,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-24 16:59:13,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 425 transitions. [2020-09-24 16:59:13,648 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 425 transitions. Word has length 160 [2020-09-24 16:59:13,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:59:13,650 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 425 transitions. [2020-09-24 16:59:13,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:59:13,650 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 425 transitions. [2020-09-24 16:59:13,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 16:59:13,654 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:13,655 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] [2020-09-24 16:59:13,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:59:13,655 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:13,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:13,656 INFO L82 PathProgramCache]: Analyzing trace with hash 844316165, now seen corresponding path program 1 times [2020-09-24 16:59:13,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:13,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1110476010] [2020-09-24 16:59:13,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:13,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:13,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:15,807 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:15,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-24 16:59:15,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:59:15,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2090 [2020-09-24 16:59:15,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:15,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:15,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 16:59:15,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:59:15,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:16,128 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:16,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:16,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,257 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:16,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:16,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:16,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 16:59:16,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:16,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:16,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:16,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,295 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:16,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:16,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:16,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:59:16,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:16,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:16,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:16,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:16,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:16,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:16,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:16,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:16,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:16,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:59:16,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:16,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:16,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:16,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:16,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:16,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:16,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,308 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:16,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:16,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:16,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:16,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:16,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:16,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:16,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:16,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:16,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:16,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:16,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:16,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:16,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:16,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:16,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:16,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:16,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:16,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:16,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:16,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:16,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:16,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:16,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:16,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:16,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:16,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 16:59:16,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:59:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:16,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,341 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:16,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:16,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:16,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:16,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:16,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:16,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 16:59:16,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:16,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:16,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:16,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:16,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:16,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:16,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:16,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:16,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:16,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:16,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:16,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:16,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:59:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:16,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,458 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:16,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 16:59:16,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:59:16,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 16:59:16,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:16,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:16,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-24 16:59:16,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:16,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:16,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:16,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,554 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:16,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:59:16,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:59:16,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 16:59:16,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:16,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:16,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:16,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:16,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:16,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:16,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,570 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:16,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:59:16,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:16,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:59:16,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:16,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:16,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:16,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:16,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:16,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:59:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:16,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:16,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:59:16,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:16,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:16,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:16,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:16,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:16,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:16,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:16,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:59:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:16,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,587 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:16,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:16,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:16,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:16,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:16,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:16,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:16,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-24 16:59:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:16,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:16,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:16,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:16,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:16,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:16,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:16,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:16,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:16,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 16:59:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:16,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:16,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:16,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:16,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:16,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:16,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:16,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:16,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:16,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:16,652 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:59:16,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1110476010] [2020-09-24 16:59:16,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:16,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:59:16,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102772540] [2020-09-24 16:59:16,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:59:16,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:16,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:59:16,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:59:16,666 INFO L87 Difference]: Start difference. First operand 375 states and 425 transitions. Second operand 6 states. [2020-09-24 16:59:17,336 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:18,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:59:18,522 INFO L93 Difference]: Finished difference Result 620 states and 715 transitions. [2020-09-24 16:59:18,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 16:59:18,523 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 199 [2020-09-24 16:59:18,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:59:18,528 INFO L225 Difference]: With dead ends: 620 [2020-09-24 16:59:18,528 INFO L226 Difference]: Without dead ends: 420 [2020-09-24 16:59:18,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:59:18,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-09-24 16:59:18,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 353. [2020-09-24 16:59:18,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-09-24 16:59:18,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 389 transitions. [2020-09-24 16:59:18,581 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 389 transitions. Word has length 199 [2020-09-24 16:59:18,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:59:18,581 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 389 transitions. [2020-09-24 16:59:18,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:59:18,582 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 389 transitions. [2020-09-24 16:59:18,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 16:59:18,584 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:18,584 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] [2020-09-24 16:59:18,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:59:18,585 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:18,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:18,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1901048636, now seen corresponding path program 1 times [2020-09-24 16:59:18,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:18,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956015256] [2020-09-24 16:59:18,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:18,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:19,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:19,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 16:59:19,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:19,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 869 [2020-09-24 16:59:19,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:59:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-24 16:59:19,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:59:19,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:19,897 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:19,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:19,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,024 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:20,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 16:59:20,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:20,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:20,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:20,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:20,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:20,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,071 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:20,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:20,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:20,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:20,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:20,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:20,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:20,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,078 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:20,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:20,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:20,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:20,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:20,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:20,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:20,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,087 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:20,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:20,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:20,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:20,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:20,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:20,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:20,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:20,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:20,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:20,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:20,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:20,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:20,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:20,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,110 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:20,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:20,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:20,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:20,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:20,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:20,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:59:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:20,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,119 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:20,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:20,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:20,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:20,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:20,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:20,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:20,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,127 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:20,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:20,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:20,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:20,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:20,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:20,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 16:59:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:20,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,225 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 16:59:20,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 16:59:20,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:59:20,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 16:59:20,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:59:20,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:20,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:20,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,294 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:59:20,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 16:59:20,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:59:20,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 16:59:20,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:59:20,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:20,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:20,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,368 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:59:20,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 16:59:20,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:20,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:20,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 16:59:20,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:20,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:59:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:20,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:59:20,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:59:20,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:20,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:20,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:20,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:20,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:59:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:20,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,457 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:20,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:20,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 16:59:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:20,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:20,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 16:59:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:20,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,471 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:20,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:20,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:20,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:20,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:20,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:20,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 16:59:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:20,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,479 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:20,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:20,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:20,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:20,561 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:59:20,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956015256] [2020-09-24 16:59:20,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:20,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 16:59:20,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209378449] [2020-09-24 16:59:20,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:59:20,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:20,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:59:20,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:59:20,566 INFO L87 Difference]: Start difference. First operand 353 states and 389 transitions. Second operand 10 states. [2020-09-24 16:59:22,240 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:22,575 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 16:59:22,917 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 16:59:23,238 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:23,587 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:59:23,895 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:24,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:59:24,725 INFO L93 Difference]: Finished difference Result 666 states and 773 transitions. [2020-09-24 16:59:24,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 16:59:24,726 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 208 [2020-09-24 16:59:24,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:59:24,730 INFO L225 Difference]: With dead ends: 666 [2020-09-24 16:59:24,730 INFO L226 Difference]: Without dead ends: 428 [2020-09-24 16:59:24,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 16:59:24,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-09-24 16:59:24,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 361. [2020-09-24 16:59:24,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-09-24 16:59:24,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 397 transitions. [2020-09-24 16:59:24,775 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 397 transitions. Word has length 208 [2020-09-24 16:59:24,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:59:24,776 INFO L479 AbstractCegarLoop]: Abstraction has 361 states and 397 transitions. [2020-09-24 16:59:24,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:59:24,776 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 397 transitions. [2020-09-24 16:59:24,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 16:59:24,780 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:24,780 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] [2020-09-24 16:59:24,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:59:24,781 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:24,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:24,781 INFO L82 PathProgramCache]: Analyzing trace with hash -2026253020, now seen corresponding path program 1 times [2020-09-24 16:59:24,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:24,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304438818] [2020-09-24 16:59:24,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:24,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:25,612 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:25,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 16:59:25,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:25,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 779 [2020-09-24 16:59:25,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:25,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:25,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-24 16:59:25,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:59:25,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:25,993 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:25,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,121 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:26,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 16:59:26,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:26,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,171 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:26,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:26,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:26,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,178 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:26,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:26,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:26,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,187 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:26,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:26,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:26,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,194 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:26,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:26,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:26,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,208 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:26,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:26,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:26,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:59:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:26,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:26,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:26,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:26,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:26,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:26,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 16:59:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,299 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 16:59:26,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 16:59:26,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:26,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 16:59:26,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:59:26,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:26,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,354 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:59:26,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 16:59:26,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:26,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 16:59:26,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:59:26,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:26,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,398 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:59:26,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 16:59:26,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:59:26,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:59:26,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:26,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:59:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:59:26,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:59:26,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:59:26,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:26,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:26,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:59:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,464 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:26,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:26,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 16:59:26,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 42 [2020-09-24 16:59:26,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 16:59:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,522 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:26,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:26,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:26,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:26,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 16:59:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,529 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:26,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:26,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:26,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:26,567 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:59:26,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304438818] [2020-09-24 16:59:26,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:26,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:59:26,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461238731] [2020-09-24 16:59:26,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:59:26,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:26,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:59:26,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:59:26,571 INFO L87 Difference]: Start difference. First operand 361 states and 397 transitions. Second operand 9 states. [2020-09-24 16:59:27,849 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:28,187 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:59:28,545 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:28,871 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 16:59:29,183 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:30,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:59:30,015 INFO L93 Difference]: Finished difference Result 680 states and 799 transitions. [2020-09-24 16:59:30,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 16:59:30,016 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 208 [2020-09-24 16:59:30,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:59:30,019 INFO L225 Difference]: With dead ends: 680 [2020-09-24 16:59:30,020 INFO L226 Difference]: Without dead ends: 434 [2020-09-24 16:59:30,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 16:59:30,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-09-24 16:59:30,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 367. [2020-09-24 16:59:30,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2020-09-24 16:59:30,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 403 transitions. [2020-09-24 16:59:30,070 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 403 transitions. Word has length 208 [2020-09-24 16:59:30,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:59:30,071 INFO L479 AbstractCegarLoop]: Abstraction has 367 states and 403 transitions. [2020-09-24 16:59:30,071 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:59:30,071 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 403 transitions. [2020-09-24 16:59:30,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 16:59:30,074 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:30,074 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] [2020-09-24 16:59:30,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:59:30,075 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:30,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:30,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1335758879, now seen corresponding path program 1 times [2020-09-24 16:59:30,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:30,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618640761] [2020-09-24 16:59:30,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:30,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:31,563 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:31,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 16:59:31,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:31,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1436 [2020-09-24 16:59:31,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:31,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 16:59:31,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 16:59:31,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-24 16:59:31,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:31,838 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:31,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:31,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,108 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:32,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:32,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:32,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-24 16:59:32,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:32,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:32,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:32,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 16:59:32,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:32,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:32,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:32,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:32,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:32,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:32,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:32,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:32,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:32,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:32,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:32,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:32,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,174 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:32,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:32,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:32,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:32,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:32,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:32,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:32,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:32,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:32,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:32,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,189 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:32,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:32,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:32,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:59:32,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:32,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:32,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:32,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:32,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:32,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:32,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:32,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:32,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:32,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:32,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:32,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:32,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:32,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:32,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:32,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,222 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:32,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:32,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:32,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:32,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:32,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:32,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:32,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:59:32,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:32,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:59:32,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:32,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,239 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:32,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:32,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:32,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:59:32,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:32,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:32,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:32,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:59:32,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:32,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:32,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,247 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:32,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:32,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:32,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:32,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:32,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:32,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:32,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 16:59:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:32,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,299 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:32,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 16:59:32,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:32,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 16:59:32,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:32,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:32,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 16:59:32,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 16:59:32,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:32,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:32,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:32,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:59:32,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:32,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 16:59:32,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:32,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 16:59:32,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:32,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:32,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,393 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:32,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:59:32,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:32,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 16:59:32,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:32,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:32,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:32,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:59:32,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:32,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:59:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:32,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,423 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:32,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:59:32,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:32,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:32,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:32,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:32,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:32,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:59:32,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:32,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:59:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:32,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,453 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:32,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:32,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:32,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:59:32,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:32,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:32,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:59:32,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 24 [2020-09-24 16:59:32,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 16:59:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:32,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,494 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:32,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:32,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:32,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:32,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:32,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:32,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:32,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:32,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:32,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 16:59:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:32,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,501 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:32,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:32,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:32,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:32,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:32,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:32,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:32,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:32,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:32,589 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:59:32,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618640761] [2020-09-24 16:59:32,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:32,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 16:59:32,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479517742] [2020-09-24 16:59:32,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:59:32,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:32,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:59:32,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:59:32,593 INFO L87 Difference]: Start difference. First operand 367 states and 403 transitions. Second operand 7 states. [2020-09-24 16:59:33,144 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:59:33,806 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189