/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_spec3_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:29:04,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:29:04,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:29:04,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:29:04,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:29:04,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:29:04,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:29:04,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:29:04,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:29:04,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:29:04,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:29:04,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:29:04,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:29:04,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:29:04,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:29:04,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:29:04,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:29:04,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:29:04,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:29:04,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:29:04,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:29:04,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:29:04,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:29:04,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:29:04,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:29:04,235 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:29:04,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:29:04,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:29:04,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:29:04,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:29:04,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:29:04,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:29:04,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:29:04,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:29:04,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:29:04,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:29:04,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:29:04,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:29:04,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:29:04,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:29:04,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:29:04,247 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 22:29:04,275 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:29:04,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:29:04,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:29:04,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:29:04,277 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:29:04,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:29:04,277 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:29:04,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:29:04,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:29:04,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:29:04,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:29:04,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:29:04,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:29:04,278 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:29:04,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:29:04,279 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:29:04,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:29:04,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:29:04,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:29:04,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:29:04,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:29:04,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:29:04,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:29:04,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:29:04,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:29:04,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:29:04,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:29:04,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:29:04,282 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:29:04,282 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 22:29:04,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:29:04,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:29:04,766 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:29:04,768 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:29:04,769 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:29:04,771 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product33.cil.c [2020-09-24 22:29:04,851 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0c053687/a40e3ae452984c3aa71ebe73341f4c97/FLAG5bc891c99 [2020-09-24 22:29:05,463 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:29:05,464 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product33.cil.c [2020-09-24 22:29:05,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0c053687/a40e3ae452984c3aa71ebe73341f4c97/FLAG5bc891c99 [2020-09-24 22:29:05,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0c053687/a40e3ae452984c3aa71ebe73341f4c97 [2020-09-24 22:29:05,752 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:29:05,758 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:29:05,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:29:05,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:29:05,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:29:05,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:29:05" (1/1) ... [2020-09-24 22:29:05,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b44c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:05, skipping insertion in model container [2020-09-24 22:29:05,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:29:05" (1/1) ... [2020-09-24 22:29:05,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:29:05,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:29:06,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:29:06,324 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:29:06,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:29:06,446 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:29:06,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:06 WrapperNode [2020-09-24 22:29:06,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:29:06,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:29:06,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:29:06,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:29:06,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:06" (1/1) ... [2020-09-24 22:29:06,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:06" (1/1) ... [2020-09-24 22:29:06,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:06" (1/1) ... [2020-09-24 22:29:06,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:06" (1/1) ... [2020-09-24 22:29:06,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:06" (1/1) ... [2020-09-24 22:29:06,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:06" (1/1) ... [2020-09-24 22:29:06,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:06" (1/1) ... [2020-09-24 22:29:06,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:29:06,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:29:06,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:29:06,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:29:06,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:06" (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 22:29:06,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:29:06,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:29:06,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:29:06,671 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:29:06,671 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:29:06,671 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:29:06,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:29:06,671 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:29:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:29:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:29:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:29:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:29:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:29:06,673 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:29:06,673 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:29:06,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:29:06,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:29:06,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:29:06,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:29:06,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:29:06,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:29:06,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:29:06,675 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:29:06,675 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:29:06,675 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:29:06,675 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:29:06,675 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:29:06,676 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:29:06,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:29:06,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:29:06,676 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:29:06,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:29:06,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:29:06,677 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:29:06,677 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:29:06,677 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:29:06,677 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:29:06,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:29:06,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:29:06,678 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:29:06,678 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:29:06,678 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:29:06,678 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:29:06,678 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:29:06,679 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:29:06,679 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:29:06,679 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:29:06,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:29:06,679 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:29:06,679 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:29:06,680 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:29:06,680 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:29:06,680 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:29:06,680 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:29:06,680 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:29:06,680 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:29:06,681 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:29:06,681 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:29:06,681 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:29:06,681 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:29:06,681 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:29:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:29:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:29:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:29:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:29:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:29:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:29:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:29:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:29:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:29:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:29:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:29:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:29:06,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:29:06,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:29:06,684 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:29:06,684 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:29:06,684 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:29:06,684 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:29:06,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:29:06,685 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:29:06,685 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:29:06,685 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:29:06,685 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:29:06,685 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:29:06,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:29:06,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:29:06,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:29:08,066 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:29:08,066 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:29:08,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:29:08 BoogieIcfgContainer [2020-09-24 22:29:08,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:29:08,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:29:08,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:29:08,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:29:08,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:29:05" (1/3) ... [2020-09-24 22:29:08,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155e91f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:29:08, skipping insertion in model container [2020-09-24 22:29:08,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:06" (2/3) ... [2020-09-24 22:29:08,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155e91f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:29:08, skipping insertion in model container [2020-09-24 22:29:08,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:29:08" (3/3) ... [2020-09-24 22:29:08,095 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product33.cil.c [2020-09-24 22:29:08,109 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:29:08,125 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:29:08,149 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:29:08,184 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:29:08,184 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:29:08,184 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:29:08,184 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:29:08,185 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:29:08,185 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:29:08,185 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:29:08,185 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:29:08,212 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-24 22:29:08,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 22:29:08,230 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:08,232 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] [2020-09-24 22:29:08,232 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:08,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:08,240 INFO L82 PathProgramCache]: Analyzing trace with hash 843539400, now seen corresponding path program 1 times [2020-09-24 22:29:08,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:08,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417658538] [2020-09-24 22:29:08,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:08,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:09,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:09,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:13,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:13,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 22:29:13,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:29:13,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4360 [2020-09-24 22:29:13,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:13,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:13,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 22:29:13,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:13,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 22:29:13,494 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:13,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:13,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:13,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:13,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:13,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:13,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-24 22:29:13,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:13,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:13,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:13,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:13,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:13,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:13,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:13,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:13,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:13,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:13,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:13,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:13,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:13,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:13,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:13,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:13,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:13,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:13,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:13,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:13,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:13,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:13,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:13,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:13,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:13,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:13,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:13,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:13,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:13,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:13,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:13,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:13,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:29:13,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:13,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:13,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:13,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:13,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:13,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:13,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:13,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:13,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:13,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:13,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:13,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:13,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:13,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:13,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:13,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:13,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:29:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:13,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:13,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:13,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:13,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:13,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:13,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:13,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:13,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:13,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:13,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:13,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:29:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:13,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:13,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:13,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:13,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:13,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:13,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:13,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:13,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:13,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:13,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:13,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:29:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:13,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:13,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:13,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:13,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:13,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:13,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:13,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:13,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:13,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:13,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:13,850 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 22:29:13,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417658538] [2020-09-24 22:29:13,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:13,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:29:13,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537388494] [2020-09-24 22:29:13,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:29:13,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:13,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:29:13,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:29:13,895 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 3 states. [2020-09-24 22:29:15,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:15,322 INFO L93 Difference]: Finished difference Result 441 states and 525 transitions. [2020-09-24 22:29:15,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:29:15,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 22:29:15,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:15,346 INFO L225 Difference]: With dead ends: 441 [2020-09-24 22:29:15,347 INFO L226 Difference]: Without dead ends: 277 [2020-09-24 22:29:15,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:29:15,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-24 22:29:15,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 238. [2020-09-24 22:29:15,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-09-24 22:29:15,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 257 transitions. [2020-09-24 22:29:15,522 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 257 transitions. Word has length 153 [2020-09-24 22:29:15,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:15,528 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 257 transitions. [2020-09-24 22:29:15,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:29:15,529 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 257 transitions. [2020-09-24 22:29:15,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 22:29:15,541 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:15,542 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] [2020-09-24 22:29:15,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:29:15,543 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:15,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:15,544 INFO L82 PathProgramCache]: Analyzing trace with hash -457138142, now seen corresponding path program 1 times [2020-09-24 22:29:15,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:15,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279924677] [2020-09-24 22:29:15,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:15,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:15,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:16,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:20,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:20,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 22:29:20,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:29:20,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-24 22:29:20,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:20,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:20,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 22:29:20,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:29:20,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:20,941 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:20,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:20,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:21,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:21,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:21,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:21,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 22:29:21,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:21,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:21,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:21,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:21,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:21,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:21,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:21,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:21,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:21,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:21,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:21,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:21,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:21,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:21,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:21,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:21,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:21,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:21,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:21,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:21,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:21,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:21,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:21,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:21,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:21,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:21,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:21,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:21,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:21,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:21,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:21,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:21,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:21,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:21,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:21,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:21,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:21,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:21,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:21,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:21,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:21,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:21,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:21,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:21,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:21,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:21,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:21,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 22:29:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:21,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:21,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:21,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:21,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:21,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:21,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:21,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:21,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:21,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:21,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:21,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 22:29:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:21,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:21,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:21,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:21,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:21,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:21,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:21,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:21,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:21,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:21,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:21,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:29:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:21,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:21,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:21,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:21,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:21,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:21,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:21,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:21,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:21,155 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 22:29:21,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279924677] [2020-09-24 22:29:21,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:21,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 22:29:21,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712073770] [2020-09-24 22:29:21,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 22:29:21,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:21,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 22:29:21,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 22:29:21,159 INFO L87 Difference]: Start difference. First operand 238 states and 257 transitions. Second operand 4 states. [2020-09-24 22:29:21,799 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:29:22,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:22,598 INFO L93 Difference]: Finished difference Result 358 states and 400 transitions. [2020-09-24 22:29:22,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:29:22,599 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 22:29:22,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:22,603 INFO L225 Difference]: With dead ends: 358 [2020-09-24 22:29:22,604 INFO L226 Difference]: Without dead ends: 260 [2020-09-24 22:29:22,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:29:22,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-24 22:29:22,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 228. [2020-09-24 22:29:22,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-24 22:29:22,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 244 transitions. [2020-09-24 22:29:22,675 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 244 transitions. Word has length 154 [2020-09-24 22:29:22,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:22,676 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 244 transitions. [2020-09-24 22:29:22,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 22:29:22,676 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 244 transitions. [2020-09-24 22:29:22,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 22:29:22,678 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:22,678 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] [2020-09-24 22:29:22,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:29:22,679 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:22,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:22,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1224265686, now seen corresponding path program 1 times [2020-09-24 22:29:22,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:22,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610626401] [2020-09-24 22:29:22,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:22,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:22,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:25,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:25,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 22:29:25,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:29:25,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2998 [2020-09-24 22:29:25,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:25,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:25,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 22:29:25,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 22:29:25,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:26,061 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:26,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:26,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:26,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:26,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:26,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:26,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-24 22:29:26,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:26,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:26,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:26,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:29:26,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:26,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:26,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:26,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:26,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:26,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:26,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:26,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:26,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:26,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:26,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:26,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:26,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:26,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:26,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:26,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:26,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:26,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:26,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:26,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:26,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:26,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:26,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:26,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:26,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:26,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:26,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:26,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:26,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:29:26,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:26,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:26,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:26,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:26,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:26,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:26,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:26,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:26,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:26,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:26,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:26,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:26,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:26,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:26,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:26,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:26,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:29:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:26,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:26,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:26,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:26,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:26,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:26,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:26,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:26,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:26,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:26,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:26,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:29:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:26,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:26,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:26,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:26,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:26,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:26,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:26,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:26,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:26,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:26,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:26,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 22:29:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:26,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:26,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:26,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:26,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:26,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:26,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:26,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:26,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:26,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:26,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:26,501 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 22:29:26,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610626401] [2020-09-24 22:29:26,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:26,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 22:29:26,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333184559] [2020-09-24 22:29:26,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 22:29:26,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:26,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 22:29:26,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 22:29:26,504 INFO L87 Difference]: Start difference. First operand 228 states and 244 transitions. Second operand 4 states. [2020-09-24 22:29:26,993 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:29:27,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:27,720 INFO L93 Difference]: Finished difference Result 378 states and 425 transitions. [2020-09-24 22:29:27,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:29:27,720 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 22:29:27,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:27,724 INFO L225 Difference]: With dead ends: 378 [2020-09-24 22:29:27,724 INFO L226 Difference]: Without dead ends: 260 [2020-09-24 22:29:27,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:29:27,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-24 22:29:27,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 228. [2020-09-24 22:29:27,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-24 22:29:27,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 243 transitions. [2020-09-24 22:29:27,759 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 243 transitions. Word has length 163 [2020-09-24 22:29:27,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:27,760 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 243 transitions. [2020-09-24 22:29:27,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 22:29:27,760 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 243 transitions. [2020-09-24 22:29:27,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 22:29:27,763 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:27,763 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] [2020-09-24 22:29:27,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:29:27,763 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:27,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:27,764 INFO L82 PathProgramCache]: Analyzing trace with hash -368692979, now seen corresponding path program 1 times [2020-09-24 22:29:27,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:27,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104627378] [2020-09-24 22:29:27,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:27,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:27,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:29,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:30,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:32,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:32,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 22:29:32,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:29:32,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-24 22:29:32,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:29:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-24 22:29:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 22:29:32,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:33,187 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:33,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:33,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:33,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:33,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:33,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:33,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 22:29:33,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:33,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:33,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:33,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:33,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:33,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:33,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:33,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:33,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:33,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:33,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:33,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:33,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:33,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:33,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:33,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:33,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:33,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:33,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:33,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:33,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:33,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:33,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:33,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:33,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:33,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:33,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:33,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:33,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:33,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:33,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:33,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:33,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:33,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:33,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:33,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:33,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:33,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:33,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:33,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:33,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:33,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:33,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 22:29:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:33,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:33,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:33,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:29:33,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:33,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:29:33,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:33,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:33,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:33,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:29:33,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:33,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:29:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:33,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:33,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:33,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:33,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:33,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:29:33,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:33,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:33,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:33,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:33,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:33,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 22:29:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:33,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:33,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:33,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:33,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:33,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:33,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:33,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:33,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:33,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:33,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-24 22:29:33,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 22:29:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:33,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:33,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:33,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:33,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:33,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:29:33,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:33,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:33,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:33,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:33,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:33,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 22:29:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:33,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:33,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:33,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:33,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:33,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:29:33,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:33,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:29:33,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:33,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:33,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:33,669 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 22:29:33,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104627378] [2020-09-24 22:29:33,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:33,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:29:33,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329510075] [2020-09-24 22:29:33,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:29:33,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:33,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:29:33,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:29:33,673 INFO L87 Difference]: Start difference. First operand 228 states and 243 transitions. Second operand 9 states. [2020-09-24 22:29:34,741 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:29:35,054 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:29:35,989 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 194 [2020-09-24 22:29:37,164 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-24 22:29:37,568 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:29:37,939 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 22:29:38,286 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:29:38,861 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:29:39,192 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:29:39,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:39,700 INFO L93 Difference]: Finished difference Result 509 states and 596 transitions. [2020-09-24 22:29:39,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 22:29:39,701 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-09-24 22:29:39,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:39,705 INFO L225 Difference]: With dead ends: 509 [2020-09-24 22:29:39,705 INFO L226 Difference]: Without dead ends: 243 [2020-09-24 22:29:39,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 22:29:39,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-24 22:29:39,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 218. [2020-09-24 22:29:39,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-24 22:29:39,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 228 transitions. [2020-09-24 22:29:39,733 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 228 transitions. Word has length 171 [2020-09-24 22:29:39,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:39,734 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 228 transitions. [2020-09-24 22:29:39,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:29:39,734 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 228 transitions. [2020-09-24 22:29:39,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 22:29:39,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:39,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:39,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:29:39,737 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:39,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:39,737 INFO L82 PathProgramCache]: Analyzing trace with hash 579054747, now seen corresponding path program 1 times [2020-09-24 22:29:39,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:39,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661703508] [2020-09-24 22:29:39,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:39,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:40,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:42,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:42,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-24 22:29:42,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:29:42,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2417 [2020-09-24 22:29:42,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:29:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-24 22:29:42,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 22:29:42,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:42,521 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:42,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:42,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:42,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:42,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:42,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:42,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:42,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 22:29:42,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:42,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:42,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:42,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:42,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:42,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:42,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:42,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:42,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:42,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:42,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:42,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:42,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:42,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:42,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:42,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:42,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:42,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:42,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:42,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:42,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:42,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:42,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:42,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:42,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:42,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:42,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:42,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:42,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:42,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:42,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:42,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:42,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:42,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:42,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:42,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:42,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:42,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:42,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:42,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:42,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:42,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:42,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:42,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:42,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:42,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:42,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:42,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 22:29:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:42,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:42,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:42,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 22:29:42,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:42,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 22:29:42,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:42,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:42,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:42,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 22:29:42,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:42,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:29:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:42,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:42,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:42,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:29:42,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:42,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:29:42,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:42,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:42,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:42,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:29:42,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:42,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:29:42,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:42,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:42,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:42,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:29:42,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:42,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:29:42,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:42,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:42,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:42,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:29:42,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:42,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:29:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:42,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:42,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:42,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:42,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:42,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:42,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:42,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:42,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:42,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:42,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:42,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 22:29:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:42,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:42,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:42,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:42,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:42,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:42,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:42,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:42,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:42,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:42,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:42,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 22:29:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:42,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:42,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:42,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:42,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:42,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:29:42,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:29:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:42,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:42,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:42,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 22:29:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:42,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:42,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:42,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:42,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:42,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:42,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:42,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:42,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:42,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:42,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:42,947 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 22:29:42,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661703508] [2020-09-24 22:29:42,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:42,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:29:42,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163010305] [2020-09-24 22:29:42,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:29:42,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:42,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:29:42,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:29:42,950 INFO L87 Difference]: Start difference. First operand 218 states and 228 transitions. Second operand 10 states. [2020-09-24 22:29:43,460 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:29:45,451 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 188 [2020-09-24 22:29:46,093 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-09-24 22:29:46,439 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:29:46,790 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:29:47,109 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:29:47,477 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 22:29:47,775 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:29:48,154 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:29:48,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:48,510 INFO L93 Difference]: Finished difference Result 441 states and 492 transitions. [2020-09-24 22:29:48,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 22:29:48,511 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2020-09-24 22:29:48,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:48,514 INFO L225 Difference]: With dead ends: 441 [2020-09-24 22:29:48,514 INFO L226 Difference]: Without dead ends: 333 [2020-09-24 22:29:48,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 22:29:48,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-09-24 22:29:48,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 308. [2020-09-24 22:29:48,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-09-24 22:29:48,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 330 transitions. [2020-09-24 22:29:48,555 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 330 transitions. Word has length 195 [2020-09-24 22:29:48,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:48,555 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 330 transitions. [2020-09-24 22:29:48,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:29:48,556 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 330 transitions. [2020-09-24 22:29:48,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 22:29:48,559 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:48,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:48,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:29:48,560 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:48,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:48,560 INFO L82 PathProgramCache]: Analyzing trace with hash 720775112, now seen corresponding path program 1 times [2020-09-24 22:29:48,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:48,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884087243] [2020-09-24 22:29:48,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:48,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-24 22:29:49,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 724 [2020-09-24 22:29:49,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:29:49,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-09-24 22:29:49,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:29:49,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:49,602 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:49,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:49,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 22:29:49,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:49,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:49,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:49,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:49,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:49,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:49,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:49,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:49,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:49,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:49,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:49,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:49,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:49,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:49,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:49,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:49,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:49,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:49,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:49,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:49,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:49,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:49,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:49,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:49,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:49,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:49,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:49,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:49,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 22:29:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:29:49,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:29:49,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:49,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:49,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:49,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:49,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 22:29:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 22:29:49,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 22:29:49,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:29:49,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:29:49,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:29:49,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:49,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:29:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:29:49,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 22:29:49,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:29:49,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:29:49,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:29:49,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:49,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:29:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:29:49,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:29:49,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:29:49,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:49,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:49,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:49,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:29:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:49,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:49,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:49,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 22:29:49,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:49,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:49,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 22:29:49,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:49,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:49,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:49,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:49,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:49,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:49,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 22:29:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:49,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:49,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:49,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:49,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:49,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:49,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 22:29:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:49,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:29:49,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:49,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:49,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:49,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:50,059 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 22:29:50,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1884087243] [2020-09-24 22:29:50,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:50,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:29:50,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041967053] [2020-09-24 22:29:50,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:29:50,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:50,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:29:50,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:29:50,062 INFO L87 Difference]: Start difference. First operand 308 states and 330 transitions. Second operand 9 states. [2020-09-24 22:29:51,229 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:29:51,513 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:29:51,803 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:29:52,088 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:29:52,397 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:29:52,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:52,997 INFO L93 Difference]: Finished difference Result 551 states and 613 transitions. [2020-09-24 22:29:52,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:29:52,998 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 200 [2020-09-24 22:29:52,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:53,008 INFO L225 Difference]: With dead ends: 551 [2020-09-24 22:29:53,008 INFO L226 Difference]: Without dead ends: 353 [2020-09-24 22:29:53,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:29:53,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2020-09-24 22:29:53,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 307. [2020-09-24 22:29:53,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-09-24 22:29:53,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 328 transitions. [2020-09-24 22:29:53,072 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 328 transitions. Word has length 200 [2020-09-24 22:29:53,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:53,072 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 328 transitions. [2020-09-24 22:29:53,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:29:53,073 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 328 transitions. [2020-09-24 22:29:53,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 22:29:53,076 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:53,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:53,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 22:29:53,077 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:53,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:53,077 INFO L82 PathProgramCache]: Analyzing trace with hash -896240792, now seen corresponding path program 1 times [2020-09-24 22:29:53,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:53,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191337836] [2020-09-24 22:29:53,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:53,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking...