/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:32:34,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:32:34,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:32:34,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:32:34,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:32:34,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:32:34,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:32:34,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:32:34,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:32:34,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:32:34,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:32:34,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:32:34,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:32:34,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:32:34,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:32:34,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:32:34,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:32:34,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:32:34,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:32:34,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:32:34,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:32:34,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:32:34,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:32:34,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:32:34,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:32:34,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:32:34,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:32:34,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:32:34,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:32:34,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:32:34,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:32:34,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:32:34,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:32:34,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:32:34,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:32:34,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:32:34,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:32:34,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:32:34,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:32:34,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:32:34,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:32:34,638 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 22:32:34,664 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:32:34,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:32:34,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:32:34,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:32:34,666 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:32:34,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:32:34,666 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:32:34,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:32:34,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:32:34,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:32:34,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:32:34,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:32:34,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:32:34,668 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:32:34,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:32:34,668 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:32:34,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:32:34,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:32:34,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:32:34,669 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:32:34,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:32:34,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:32:34,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:32:34,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:32:34,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:32:34,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:32:34,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:32:34,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:32:34,671 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:32:34,671 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:32:35,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:32:35,161 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:32:35,165 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:32:35,167 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:32:35,167 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:32:35,168 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2020-09-24 22:32:35,248 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5df1470e/254fbea1005942f2ad037e88a6e1495d/FLAG44d9cba56 [2020-09-24 22:32:35,799 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:32:35,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2020-09-24 22:32:35,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5df1470e/254fbea1005942f2ad037e88a6e1495d/FLAG44d9cba56 [2020-09-24 22:32:36,067 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5df1470e/254fbea1005942f2ad037e88a6e1495d [2020-09-24 22:32:36,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:32:36,090 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:32:36,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:32:36,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:32:36,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:32:36,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:32:36" (1/1) ... [2020-09-24 22:32:36,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e33fb78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36, skipping insertion in model container [2020-09-24 22:32:36,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:32:36" (1/1) ... [2020-09-24 22:32:36,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:32:36,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:32:36,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:32:36,676 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:32:36,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:32:36,847 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:32:36,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36 WrapperNode [2020-09-24 22:32:36,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:32:36,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:32:36,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:32:36,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:32:36,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (1/1) ... [2020-09-24 22:32:36,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (1/1) ... [2020-09-24 22:32:36,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (1/1) ... [2020-09-24 22:32:36,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (1/1) ... [2020-09-24 22:32:36,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (1/1) ... [2020-09-24 22:32:36,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (1/1) ... [2020-09-24 22:32:36,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (1/1) ... [2020-09-24 22:32:36,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:32:36,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:32:36,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:32:36,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:32:36,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:32:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:32:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:32:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:32:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:32:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:32:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:32:37,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:32:37,048 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:32:37,049 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:32:37,049 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:32:37,049 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 22:32:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:32:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:32:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:32:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:32:37,051 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:32:37,051 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:32:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:32:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:32:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:32:37,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:32:37,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 22:32:37,054 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 22:32:37,054 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:32:37,055 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:32:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:32:37,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:32:37,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:32:37,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:32:37,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:32:37,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:32:37,058 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:32:37,058 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:32:37,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:32:37,058 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:32:37,058 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:32:37,059 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:32:37,059 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:32:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:32:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:32:37,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:32:37,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 22:32:37,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:32:37,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:32:37,062 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:32:37,064 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:32:37,064 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:32:37,064 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:32:37,064 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:32:37,064 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:32:37,065 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:32:37,065 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:32:37,065 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 22:32:37,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:32:37,066 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:32:37,066 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:32:37,066 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:32:37,066 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:32:37,067 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:32:37,067 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 22:32:37,067 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:32:37,067 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 22:32:37,067 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:32:37,067 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:32:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:32:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:32:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 22:32:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:32:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:32:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:32:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:32:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:32:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:32:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:32:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:32:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:32:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:32:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:32:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:32:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:32:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:32:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:32:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:32:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:32:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:32:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:32:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:32:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:32:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:32:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:32:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:32:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:32:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:32:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:32:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:32:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:32:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:32:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:32:38,274 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:32:38,274 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:32:38,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:32:38 BoogieIcfgContainer [2020-09-24 22:32:38,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:32:38,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:32:38,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:32:38,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:32:38,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:32:36" (1/3) ... [2020-09-24 22:32:38,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d7fc98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:32:38, skipping insertion in model container [2020-09-24 22:32:38,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (2/3) ... [2020-09-24 22:32:38,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d7fc98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:32:38, skipping insertion in model container [2020-09-24 22:32:38,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:32:38" (3/3) ... [2020-09-24 22:32:38,292 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2020-09-24 22:32:38,306 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:32:38,319 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:32:38,344 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:32:38,381 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:32:38,381 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:32:38,381 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:32:38,381 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:32:38,381 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:32:38,382 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:32:38,382 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:32:38,382 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:32:38,414 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-24 22:32:38,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 22:32:38,433 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:32:38,435 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] [2020-09-24 22:32:38,436 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:32:38,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:32:38,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1964738656, now seen corresponding path program 1 times [2020-09-24 22:32:38,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:32:38,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849856643] [2020-09-24 22:32:38,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:32:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:39,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:39,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:40,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:41,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:43,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:43,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 22:32:43,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:32:43,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-09-24 22:32:43,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:43,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:32:43,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 22:32:43,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:32:43,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-24 22:32:44,509 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:32:44,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:32:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:44,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:44,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:44,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:32:44,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:44,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-24 22:32:44,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:44,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:44,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:44,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:44,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:44,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:32:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:44,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:44,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:44,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:44,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:44,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:32:44,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:44,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:44,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:44,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:44,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:44,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:32:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:44,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:44,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:44,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:44,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:44,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:44,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:44,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:44,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:44,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:44,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:44,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:32:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:44,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:44,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:44,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:44,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:44,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:32:44,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:44,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:44,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:44,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:44,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:44,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:32:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:44,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:44,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:44,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:44,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:44,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:44,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:44,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:44,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:44,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:44,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:44,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:32:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:44,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:44,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:44,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:44,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:44,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:32:44,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:44,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:32:44,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:44,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:32:44,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:44,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 22:32:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:44,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:44,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:44,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:44,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:44,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:32:44,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:44,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:44,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:44,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:32:44,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:44,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:32:44,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849856643] [2020-09-24 22:32:44,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:32:44,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:32:44,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865487658] [2020-09-24 22:32:44,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:32:44,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:32:44,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:32:44,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:32:44,986 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 8 states. [2020-09-24 22:32:45,720 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:32:46,934 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:47,269 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:32:47,639 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:47,993 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:32:48,253 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:48,965 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:32:49,255 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:49,618 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:32:50,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:32:50,972 INFO L93 Difference]: Finished difference Result 629 states and 785 transitions. [2020-09-24 22:32:50,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:32:50,975 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 22:32:50,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:32:51,005 INFO L225 Difference]: With dead ends: 629 [2020-09-24 22:32:51,005 INFO L226 Difference]: Without dead ends: 418 [2020-09-24 22:32:51,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:32:51,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-09-24 22:32:51,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 373. [2020-09-24 22:32:51,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-09-24 22:32:51,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 428 transitions. [2020-09-24 22:32:51,157 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 428 transitions. Word has length 142 [2020-09-24 22:32:51,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:32:51,158 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 428 transitions. [2020-09-24 22:32:51,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:32:51,159 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 428 transitions. [2020-09-24 22:32:51,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-24 22:32:51,164 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:32:51,164 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:32:51,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:32:51,165 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:32:51,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:32:51,165 INFO L82 PathProgramCache]: Analyzing trace with hash -631628131, now seen corresponding path program 1 times [2020-09-24 22:32:51,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:32:51,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1937958096] [2020-09-24 22:32:51,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:32:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:51,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:51,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:51,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:52,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-24 22:32:56,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:32:56,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-24 22:32:56,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:32:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-24 22:32:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:32:56,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:56,523 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:32:56,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:32:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:56,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:32:56,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:56,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 22:32:56,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:56,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:56,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:56,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:56,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:32:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:56,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:56,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:56,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:56,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:56,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:56,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:56,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:56,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:32:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:56,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:56,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:56,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:56,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:56,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:56,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:56,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:56,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:32:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:56,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:56,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:56,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:32:56,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:56,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:56,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:56,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:56,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:32:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:56,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:56,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:56,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:56,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:56,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:56,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:56,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:56,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 22:32:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:56,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:32:56,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:56,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:32:56,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:56,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:56,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:56,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:56,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:32:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:56,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 22:32:56,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:56,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:32:56,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:56,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:56,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:56,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:56,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:32:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:56,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:56,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:56,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:56,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:56,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:56,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:56,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 22:32:56,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:32:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:56,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:32:56,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:56,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 22:32:56,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:32:56,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 22:32:56,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:32:56,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:56,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:32:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:56,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:32:56,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:56,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 22:32:56,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:32:56,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:32:56,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:32:56,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:56,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:32:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:56,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:57,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:57,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:32:57,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:57,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 22:32:57,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:57,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:57,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:57,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:32:57,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:57,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:32:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:57,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:57,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:57,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:32:57,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:57,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:57,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:57,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:57,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:57,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:32:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:57,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:57,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:57,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:32:57,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:57,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:57,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:57,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:57,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:32:57,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:57,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:57,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 22:32:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:57,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:57,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:57,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:57,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:57,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:32:57,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:57,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:57,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:32:57,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:57,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:57,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 22:32:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:57,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:57,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:57,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:57,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:57,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:57,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:57,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:32:57,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:57,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:57,225 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 22:32:57,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1937958096] [2020-09-24 22:32:57,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:32:57,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 22:32:57,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338010978] [2020-09-24 22:32:57,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:32:57,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:32:57,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:32:57,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:32:57,230 INFO L87 Difference]: Start difference. First operand 373 states and 428 transitions. Second operand 10 states. [2020-09-24 22:32:58,737 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:59,078 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:32:59,409 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 22:32:59,718 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:33:00,046 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:33:00,338 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:33:01,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:33:01,664 INFO L93 Difference]: Finished difference Result 753 states and 940 transitions. [2020-09-24 22:33:01,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:33:01,665 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 205 [2020-09-24 22:33:01,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:33:01,673 INFO L225 Difference]: With dead ends: 753 [2020-09-24 22:33:01,673 INFO L226 Difference]: Without dead ends: 490 [2020-09-24 22:33:01,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 22:33:01,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-09-24 22:33:01,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 384. [2020-09-24 22:33:01,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-09-24 22:33:01,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 439 transitions. [2020-09-24 22:33:01,748 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 439 transitions. Word has length 205 [2020-09-24 22:33:01,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:33:01,749 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 439 transitions. [2020-09-24 22:33:01,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:33:01,750 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 439 transitions. [2020-09-24 22:33:01,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 22:33:01,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:33:01,753 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] [2020-09-24 22:33:01,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:33:01,753 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:33:01,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:33:01,754 INFO L82 PathProgramCache]: Analyzing trace with hash -60173217, now seen corresponding path program 1 times [2020-09-24 22:33:01,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:33:01,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545658068] [2020-09-24 22:33:01,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:33:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:01,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:01,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:03,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:06,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:06,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 22:33:06,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:33:06,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 22:33:06,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:06,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:33:06,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-24 22:33:06,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:33:06,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,182 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:33:07,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:33:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:33:07,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 22:33:07,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:07,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:33:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:07,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:33:07,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:07,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:33:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:07,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:33:07,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:07,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:33:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:07,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:33:07,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:07,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:33:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:07,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:33:07,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:07,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 22:33:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:33:07,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 22:33:07,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:33:07,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 22:33:07,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:33:07,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:33:07,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 22:33:07,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:33:07,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:33:07,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:33:07,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:07,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:33:07,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 22:33:07,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:33:07,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:33:07,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:33:07,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:07,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:33:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:33:07,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:33:07,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:33:07,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:33:07,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:33:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:33:07,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:33:07,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:33:07,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 22:33:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:07,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:33:07,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:33:07,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 22:33:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:07,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:07,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:33:07,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:07,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:33:07,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545658068] [2020-09-24 22:33:07,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:33:07,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:33:07,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331727882] [2020-09-24 22:33:07,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:33:07,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:33:07,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:33:07,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:33:07,689 INFO L87 Difference]: Start difference. First operand 384 states and 439 transitions. Second operand 8 states. [2020-09-24 22:33:08,953 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:33:09,299 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:33:09,642 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:33:09,982 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:33:10,288 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:33:11,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:33:11,431 INFO L93 Difference]: Finished difference Result 751 states and 948 transitions. [2020-09-24 22:33:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 22:33:11,432 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 181 [2020-09-24 22:33:11,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:33:11,437 INFO L225 Difference]: With dead ends: 751 [2020-09-24 22:33:11,438 INFO L226 Difference]: Without dead ends: 477 [2020-09-24 22:33:11,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:33:11,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2020-09-24 22:33:11,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 390. [2020-09-24 22:33:11,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-09-24 22:33:11,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 445 transitions. [2020-09-24 22:33:11,498 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 445 transitions. Word has length 181 [2020-09-24 22:33:11,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:33:11,499 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 445 transitions. [2020-09-24 22:33:11,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:33:11,499 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 445 transitions. [2020-09-24 22:33:11,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 22:33:11,502 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:33:11,502 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] [2020-09-24 22:33:11,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:33:11,502 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:33:11,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:33:11,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1700467198, now seen corresponding path program 1 times [2020-09-24 22:33:11,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:33:11,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187498879] [2020-09-24 22:33:11,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:33:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:11,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:11,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:13,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:16,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:16,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 22:33:16,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:33:16,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-24 22:33:16,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:16,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:33:16,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-24 22:33:16,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 22:33:16,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:16,936 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:33:16,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:33:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:16,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:17,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:17,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:33:17,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:17,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 22:33:17,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:17,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:17,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:17,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:17,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:17,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:33:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:17,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:17,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:17,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:17,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:17,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:33:17,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:17,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:17,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:17,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:17,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:33:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:17,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:17,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:17,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:17,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:17,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:17,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:17,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:17,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:17,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:17,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:17,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:33:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:17,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:17,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:17,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:17,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:17,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:33:17,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:17,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:17,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:17,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:17,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:33:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:17,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:17,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:17,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:17,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:17,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:17,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:17,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:17,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:17,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:17,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:17,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 22:33:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:17,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:17,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:17,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:33:17,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:17,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 22:33:17,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:17,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:33:17,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:17,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 22:33:17,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:17,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:17,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:17,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:17,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:33:17,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:17,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 22:33:17,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:17,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:33:17,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:17,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 22:33:17,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:17,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:17,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:17,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:17,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:33:17,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:17,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 22:33:17,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:17,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:33:17,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:17,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:33:17,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:17,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:33:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:17,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:17,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:17,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:33:17,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:17,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:33:17,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:33:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:33:17,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:17,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:33:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:17,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:17,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:17,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:33:17,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:17,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:33:17,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:17,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:33:17,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:17,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:33:17,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:17,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 22:33:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:17,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:17,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:17,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:17,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:17,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:33:17,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:17,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:33:17,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:17,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:33:17,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:17,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 22:33:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:17,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:17,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:17,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:17,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:17,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:33:17,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:17,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:17,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:33:17,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:17,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:17,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:33:17,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187498879] [2020-09-24 22:33:17,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:33:17,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:33:17,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974446756] [2020-09-24 22:33:17,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:33:17,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:33:17,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:33:17,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:33:17,457 INFO L87 Difference]: Start difference. First operand 390 states and 445 transitions. Second operand 9 states. [2020-09-24 22:33:18,337 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:33:18,869 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:33:19,205 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:33:20,302 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:33:20,623 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:33:20,966 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:33:21,313 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:33:21,612 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:33:23,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:33:23,898 INFO L93 Difference]: Finished difference Result 975 states and 1298 transitions. [2020-09-24 22:33:23,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 22:33:23,899 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 181 [2020-09-24 22:33:23,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:33:23,904 INFO L225 Difference]: With dead ends: 975 [2020-09-24 22:33:23,904 INFO L226 Difference]: Without dead ends: 695 [2020-09-24 22:33:23,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 22:33:23,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2020-09-24 22:33:23,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 561. [2020-09-24 22:33:23,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-09-24 22:33:23,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 676 transitions. [2020-09-24 22:33:23,987 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 676 transitions. Word has length 181 [2020-09-24 22:33:23,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:33:23,988 INFO L479 AbstractCegarLoop]: Abstraction has 561 states and 676 transitions. [2020-09-24 22:33:23,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:33:23,989 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 676 transitions. [2020-09-24 22:33:23,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-24 22:33:23,993 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:33:23,993 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:33:23,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:33:23,994 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:33:23,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:33:23,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1361483685, now seen corresponding path program 1 times [2020-09-24 22:33:23,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:33:23,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914304388] [2020-09-24 22:33:23,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:33:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:24,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:24,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:24,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:24,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:24,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking...