/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:06:44,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:06:44,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:06:44,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:06:44,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:06:44,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:06:44,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:06:44,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:06:44,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:06:44,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:06:44,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:06:44,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:06:44,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:06:44,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:06:44,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:06:44,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:06:44,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:06:44,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:06:44,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:06:44,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:06:44,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:06:44,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:06:44,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:06:44,323 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:06:44,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:06:44,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:06:44,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:06:44,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:06:44,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:06:44,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:06:44,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:06:44,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:06:44,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:06:44,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:06:44,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:06:44,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:06:44,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:06:44,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:06:44,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:06:44,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:06:44,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:06:44,346 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:06:44,405 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:06:44,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:06:44,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:06:44,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:06:44,407 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:06:44,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:06:44,409 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:06:44,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:06:44,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:06:44,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:06:44,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:06:44,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:06:44,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:06:44,410 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:06:44,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:06:44,410 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:06:44,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:06:44,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:06:44,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:06:44,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:06:44,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:06:44,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:06:44,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:06:44,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:06:44,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:06:44,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:06:44,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:06:44,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:06:44,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:06:44,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:06:44,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:06:44,904 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:06:44,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:06:44,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:06:44,913 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:06:44,914 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-09-25 13:06:45,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fc35414d/4dc22cc4bf484bec95bb36646c157abe/FLAG840fb67a6 [2020-09-25 13:06:45,603 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:06:45,604 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-09-25 13:06:45,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fc35414d/4dc22cc4bf484bec95bb36646c157abe/FLAG840fb67a6 [2020-09-25 13:06:45,890 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fc35414d/4dc22cc4bf484bec95bb36646c157abe [2020-09-25 13:06:45,903 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:06:45,907 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:06:45,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:06:45,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:06:45,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:06:45,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:06:45" (1/1) ... [2020-09-25 13:06:45,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:45, skipping insertion in model container [2020-09-25 13:06:45,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:06:45" (1/1) ... [2020-09-25 13:06:45,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:06:46,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:06:46,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:06:46,532 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:06:46,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:06:46,720 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:06:46,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:46 WrapperNode [2020-09-25 13:06:46,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:06:46,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:06:46,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:06:46,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:06:46,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:46" (1/1) ... [2020-09-25 13:06:46,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:46" (1/1) ... [2020-09-25 13:06:46,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:46" (1/1) ... [2020-09-25 13:06:46,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:46" (1/1) ... [2020-09-25 13:06:46,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:46" (1/1) ... [2020-09-25 13:06:46,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:46" (1/1) ... [2020-09-25 13:06:46,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:46" (1/1) ... [2020-09-25 13:06:46,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:06:46,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:06:46,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:06:46,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:06:46,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:06:46,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:06:46,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:06:46,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:06:46,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:06:46,927 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:06:46,927 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:06:46,928 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:06:46,929 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:06:46,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:06:46,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:06:46,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:06:46,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:06:46,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:06:46,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:06:46,930 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:06:46,932 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:06:46,932 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:06:46,932 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:06:46,932 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:06:46,933 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:06:46,933 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:06:46,933 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:06:46,933 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:06:46,934 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:06:46,934 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:06:46,935 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:06:46,935 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:06:46,935 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:06:46,935 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:06:46,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:06:46,936 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:06:46,936 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:06:46,936 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:06:46,936 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:06:46,936 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:06:46,936 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:06:46,937 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:06:46,937 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:06:46,937 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:06:46,937 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:06:46,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:06:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:06:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:06:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:06:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:06:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:06:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:06:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:06:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:06:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:06:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:06:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:06:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:06:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:06:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:06:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:06:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:06:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:06:46,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:06:46,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:06:46,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:06:46,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:06:46,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:06:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:06:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:06:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:06:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:06:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:06:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:06:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:06:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:06:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:06:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:06:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:06:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:06:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:06:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:06:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:06:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:06:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:06:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:06:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:06:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:06:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:06:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:06:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:06:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:06:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:06:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:06:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:06:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:06:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:06:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:06:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:06:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:06:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:06:48,206 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:06:48,207 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:06:48,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:06:48 BoogieIcfgContainer [2020-09-25 13:06:48,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:06:48,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:06:48,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:06:48,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:06:48,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:06:45" (1/3) ... [2020-09-25 13:06:48,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10de3e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:06:48, skipping insertion in model container [2020-09-25 13:06:48,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:46" (2/3) ... [2020-09-25 13:06:48,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10de3e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:06:48, skipping insertion in model container [2020-09-25 13:06:48,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:06:48" (3/3) ... [2020-09-25 13:06:48,224 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2020-09-25 13:06:48,237 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:06:48,250 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:06:48,272 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:06:48,304 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:06:48,304 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:06:48,304 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:06:48,305 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:06:48,305 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:06:48,305 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:06:48,305 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:06:48,305 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:06:48,336 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states. [2020-09-25 13:06:48,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:06:48,354 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:06:48,356 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:06:48,356 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:06:48,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:06:48,364 INFO L82 PathProgramCache]: Analyzing trace with hash 324352486, now seen corresponding path program 1 times [2020-09-25 13:06:48,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:06:48,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368049809] [2020-09-25 13:06:48,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:06:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:48,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:49,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:49,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:50,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:50,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:53,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:53,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:06:53,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:06:53,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-09-25 13:06:53,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:53,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:53,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:53,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:06:53,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 13:06:53,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:06:54,316 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:06:54,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:06:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:54,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:54,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:54,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:06:54,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:54,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-09-25 13:06:54,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:54,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:06:54,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:54,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:06:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:54,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:54,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:54,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:54,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:54,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:54,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:54,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:54,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:54,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:54,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:54,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 56 [2020-09-25 13:06:54,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:06:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:54,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:54,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:54,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:54,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:54,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:54,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:54,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:54,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:54,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:54,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:54,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:54,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:06:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:54,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:54,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:54,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:54,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:54,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:06:54,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:54,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:54,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:54,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:54,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:06:54,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:54,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:06:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:54,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:54,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:54,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:54,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:54,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:06:54,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:54,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:54,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:54,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:54,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:54,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:06:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:54,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:54,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:54,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:54,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:54,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:06:54,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:54,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:54,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:54,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:06:54,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:54,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:54,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:06:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:54,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:54,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:54,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:54,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:54,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:06:54,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:54,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:54,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:06:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:54,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:06:54,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:06:54,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [368049809] [2020-09-25 13:06:54,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:06:54,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:06:54,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394232355] [2020-09-25 13:06:54,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:06:54,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:06:54,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:06:54,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:06:54,934 INFO L87 Difference]: Start difference. First operand 329 states. Second operand 4 states. [2020-09-25 13:06:55,516 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:06:56,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:06:56,672 INFO L93 Difference]: Finished difference Result 525 states and 620 transitions. [2020-09-25 13:06:56,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:06:56,675 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:06:56,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:06:56,697 INFO L225 Difference]: With dead ends: 525 [2020-09-25 13:06:56,697 INFO L226 Difference]: Without dead ends: 321 [2020-09-25 13:06:56,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:06:56,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-09-25 13:06:56,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 278. [2020-09-25 13:06:56,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-25 13:06:56,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 301 transitions. [2020-09-25 13:06:56,821 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 301 transitions. Word has length 142 [2020-09-25 13:06:56,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:06:56,823 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 301 transitions. [2020-09-25 13:06:56,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:06:56,823 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 301 transitions. [2020-09-25 13:06:56,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 13:06:56,828 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:06:56,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:06:56,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:06:56,829 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:06:56,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:06:56,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1427031856, now seen corresponding path program 1 times [2020-09-25 13:06:56,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:06:56,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333392006] [2020-09-25 13:06:56,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:06:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:56,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:57,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:57,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:57,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:01,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:01,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 13:07:01,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:07:01,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 13:07:01,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:01,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:01,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:07:01,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:07:01,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:07:01,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:02,221 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:07:02,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:07:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:02,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:02,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:02,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:07:02,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:02,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 13:07:02,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:02,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:02,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:02,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:02,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:07:02,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:02,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:07:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:02,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:02,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:02,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:02,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:02,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:07:02,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:02,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:02,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:02,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:07:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:02,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:02,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:02,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:02,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:02,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:07:02,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:02,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:02,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:02,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:02,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:02,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:02,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:07:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:02,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:02,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:02,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:02,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:02,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:07:02,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:02,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:02,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:02,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:02,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:07:02,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:02,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:07:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:02,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:02,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:02,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:02,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:02,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:07:02,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:02,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:02,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:02,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:02,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:02,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:02,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:07:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:02,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:02,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:02,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:02,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:07:02,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:07:02,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 13:07:02,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:02,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:02,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:07:02,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:07:02,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:07:02,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:02,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:07:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:02,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:02,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:02,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:07:02,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:02,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 13:07:02,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:02,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:07:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:07:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:07:02,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:07:02,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:07:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:02,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:02,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:02,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:02,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:02,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:07:02,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:02,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:02,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:02,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:02,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:02,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:02,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 13:07:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:02,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:02,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:02,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:02,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:02,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:07:02,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:02,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:02,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:02,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:07:02,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:02,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:02,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 13:07:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:02,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:02,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:02,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:02,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:02,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:07:02,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:02,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:02,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:02,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:07:02,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:02,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:07:02,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:07:02,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [333392006] [2020-09-25 13:07:02,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:07:02,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:07:02,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071864599] [2020-09-25 13:07:02,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:07:02,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:07:02,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:07:02,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:07:02,837 INFO L87 Difference]: Start difference. First operand 278 states and 301 transitions. Second operand 7 states. [2020-09-25 13:07:03,352 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:07:04,784 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:07:06,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:07:06,296 INFO L93 Difference]: Finished difference Result 654 states and 782 transitions. [2020-09-25 13:07:06,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 13:07:06,297 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2020-09-25 13:07:06,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:07:06,304 INFO L225 Difference]: With dead ends: 654 [2020-09-25 13:07:06,304 INFO L226 Difference]: Without dead ends: 486 [2020-09-25 13:07:06,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:07:06,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-09-25 13:07:06,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 403. [2020-09-25 13:07:06,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2020-09-25 13:07:06,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 448 transitions. [2020-09-25 13:07:06,432 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 448 transitions. Word has length 156 [2020-09-25 13:07:06,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:07:06,433 INFO L479 AbstractCegarLoop]: Abstraction has 403 states and 448 transitions. [2020-09-25 13:07:06,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:07:06,433 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 448 transitions. [2020-09-25 13:07:06,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 13:07:06,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:07:06,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:07:06,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:07:06,438 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:07:06,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:07:06,438 INFO L82 PathProgramCache]: Analyzing trace with hash 2027625623, now seen corresponding path program 1 times [2020-09-25 13:07:06,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:07:06,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460965837] [2020-09-25 13:07:06,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:07:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:06,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:07,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:07,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:08,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:08,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:11,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:11,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 13:07:11,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:07:11,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 13:07:11,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:11,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:11,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:07:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 13:07:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-25 13:07:11,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:11,860 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:07:11,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:07:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:11,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:12,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:12,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:07:12,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:12,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-09-25 13:07:12,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:12,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:12,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:12,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:12,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:07:12,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:12,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:07:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:12,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:12,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:12,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:12,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:12,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:07:12,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:12,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:12,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:12,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:12,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:12,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:12,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:07:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:12,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:12,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:12,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:12,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:12,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:07:12,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:12,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:12,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:12,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:12,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:12,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:12,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:07:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:12,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:12,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:12,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:12,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:12,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:07:12,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:12,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:12,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:12,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:12,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:07:12,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:12,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:07:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:12,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:12,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:12,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:12,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:12,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:07:12,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:12,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:12,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:12,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:12,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:12,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:12,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 13:07:12,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:12,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:12,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:12,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 13:07:12,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:12,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 13:07:12,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:12,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:12,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:12,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:12,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 13:07:12,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:12,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:07:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:12,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:12,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:12,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 13:07:12,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:12,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:07:12,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:12,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:12,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:12,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:12,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:12,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:12,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:07:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:12,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:12,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:12,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:07:12,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:12,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:07:12,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:12,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:12,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:12,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:12,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:12,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:07:12,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:07:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:12,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:12,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:12,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:07:12,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:12,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:07:12,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:12,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:12,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:12,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:12,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:12,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:12,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:07:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:12,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:12,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:12,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:12,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:12,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:07:12,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:12,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:12,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:12,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:12,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:12,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:12,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 13:07:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:12,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:12,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:12,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:12,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:12,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:07:12,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:12,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:07:12,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:12,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:07:12,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:12,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 13:07:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:12,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:12,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:12,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:12,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:12,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:07:12,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:12,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:12,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:12,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:07:12,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:12,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:12,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:07:12,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460965837] [2020-09-25 13:07:12,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:07:12,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:07:12,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761128702] [2020-09-25 13:07:12,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:07:12,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:07:12,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:07:12,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:07:12,417 INFO L87 Difference]: Start difference. First operand 403 states and 448 transitions. Second operand 9 states. [2020-09-25 13:07:12,851 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:07:14,182 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:07:14,756 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 13:07:15,275 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:07:15,582 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:07:16,110 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:07:16,451 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:07:16,769 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:07:17,186 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:07:18,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:07:18,815 INFO L93 Difference]: Finished difference Result 1070 states and 1297 transitions. [2020-09-25 13:07:18,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:07:18,815 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2020-09-25 13:07:18,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:07:18,822 INFO L225 Difference]: With dead ends: 1070 [2020-09-25 13:07:18,822 INFO L226 Difference]: Without dead ends: 736 [2020-09-25 13:07:18,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 13:07:18,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2020-09-25 13:07:18,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 632. [2020-09-25 13:07:18,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2020-09-25 13:07:18,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 701 transitions. [2020-09-25 13:07:18,919 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 701 transitions. Word has length 189 [2020-09-25 13:07:18,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:07:18,920 INFO L479 AbstractCegarLoop]: Abstraction has 632 states and 701 transitions. [2020-09-25 13:07:18,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:07:18,920 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 701 transitions. [2020-09-25 13:07:18,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 13:07:18,924 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:07:18,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:07:18,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:07:18,925 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:07:18,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:07:18,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1242482, now seen corresponding path program 1 times [2020-09-25 13:07:18,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:07:18,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958844711] [2020-09-25 13:07:18,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:07:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:19,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:19,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:19,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:20,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:23,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:23,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 13:07:23,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:07:23,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 13:07:23,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:23,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:23,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 13:07:23,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:07:23,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-25 13:07:23,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:24,364 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:07:24,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:07:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:24,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:24,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:24,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:07:24,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:24,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-25 13:07:24,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:24,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:24,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:24,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:24,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:07:24,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:24,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:07:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:24,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:24,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:24,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:24,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:24,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:07:24,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:24,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:24,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:24,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:24,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:24,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:24,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:07:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:24,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:24,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:24,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:24,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:24,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:07:24,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:24,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:24,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:24,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:24,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:24,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:24,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:07:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:24,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:24,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:24,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:24,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:24,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:07:24,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:24,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:24,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:24,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:24,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:07:24,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:24,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:07:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:24,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:24,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:24,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:24,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:24,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:07:24,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:24,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:24,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:24,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:07:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:24,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:24,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:24,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:07:24,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:24,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:07:24,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:24,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:24,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:24,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:24,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:07:24,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:24,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 13:07:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:24,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:24,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:24,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:24,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:24,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 13:07:24,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:07:24,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-25 13:07:24,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:24,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:24,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:07:24,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:07:24,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 13:07:24,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:24,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:07:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:24,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:25,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:25,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 13:07:25,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:25,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 13:07:25,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:25,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:25,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:07:25,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:07:25,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 13:07:25,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:25,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:07:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:25,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:25,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:25,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:07:25,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:25,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 13:07:25,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:25,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:25,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:25,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:25,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 13:07:25,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:25,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:07:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:25,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:25,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:25,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:07:25,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:25,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:07:25,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:25,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:25,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:25,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:25,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:25,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:07:25,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:07:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:25,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:25,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:25,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:25,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:25,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:07:25,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:25,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:25,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:25,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:25,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:25,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:25,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 13:07:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:25,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:25,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:25,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:25,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:25,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:07:25,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:25,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:25,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:25,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:25,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:07:25,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:25,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 13:07:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:25,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:25,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:25,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:25,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:25,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:07:25,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:25,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:25,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:07:25,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:25,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:07:25,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:25,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:07:25,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958844711] [2020-09-25 13:07:25,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:07:25,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:07:25,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358410064] [2020-09-25 13:07:25,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:07:25,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:07:25,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:07:25,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:07:25,249 INFO L87 Difference]: Start difference. First operand 632 states and 701 transitions. Second operand 10 states. [2020-09-25 13:07:25,815 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:07:27,322 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:07:27,634 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:07:28,035 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:07:29,176 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:07:29,554 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:07:29,893 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:07:30,250 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 13:07:30,604 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:07:31,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:07:31,051 INFO L93 Difference]: Finished difference Result 802 states and 945 transitions. [2020-09-25 13:07:31,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 13:07:31,052 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-25 13:07:31,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:07:31,058 INFO L225 Difference]: With dead ends: 802 [2020-09-25 13:07:31,058 INFO L226 Difference]: Without dead ends: 799 [2020-09-25 13:07:31,063 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 13:07:31,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2020-09-25 13:07:31,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 632. [2020-09-25 13:07:31,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2020-09-25 13:07:31,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 700 transitions. [2020-09-25 13:07:31,158 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 700 transitions. Word has length 194 [2020-09-25 13:07:31,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:07:31,158 INFO L479 AbstractCegarLoop]: Abstraction has 632 states and 700 transitions. [2020-09-25 13:07:31,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:07:31,159 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 700 transitions. [2020-09-25 13:07:31,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 13:07:31,162 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:07:31,163 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:07:31,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:07:31,163 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:07:31,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:07:31,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1053053690, now seen corresponding path program 1 times [2020-09-25 13:07:31,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:07:31,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92161612] [2020-09-25 13:07:31,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:07:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:31,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:31,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:34,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking...