/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:05:24,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:05:24,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:05:24,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:05:24,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:05:24,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:05:24,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:05:24,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:05:24,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:05:24,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:05:24,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:05:24,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:05:24,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:05:24,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:05:24,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:05:24,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:05:24,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:05:24,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:05:24,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:05:24,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:05:24,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:05:24,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:05:24,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:05:24,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:05:24,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:05:24,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:05:24,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:05:24,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:05:24,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:05:24,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:05:24,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:05:24,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:05:24,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:05:24,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:05:24,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:05:24,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:05:24,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:05:24,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:05:24,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:05:24,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:05:24,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:05:24,239 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:05:24,291 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:05:24,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:05:24,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:05:24,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:05:24,294 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:05:24,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:05:24,295 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:05:24,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:05:24,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:05:24,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:05:24,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:05:24,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:05:24,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:05:24,297 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:05:24,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:05:24,298 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:05:24,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:05:24,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:05:24,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:05:24,298 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:05:24,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:05:24,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:05:24,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:05:24,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:05:24,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:05:24,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:05:24,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:05:24,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:05:24,300 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:05:24,300 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:05:24,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:05:24,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:05:24,776 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:05:24,778 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:05:24,778 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:05:24,779 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-09-25 13:05:24,873 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86df1fb5b/bb609a7a0d5e4d00bf9c8d4ad43ad64a/FLAG07b6f98a6 [2020-09-25 13:05:25,500 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:05:25,501 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-09-25 13:05:25,514 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86df1fb5b/bb609a7a0d5e4d00bf9c8d4ad43ad64a/FLAG07b6f98a6 [2020-09-25 13:05:25,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86df1fb5b/bb609a7a0d5e4d00bf9c8d4ad43ad64a [2020-09-25 13:05:25,776 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:05:25,782 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:05:25,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:05:25,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:05:25,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:05:25,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:05:25" (1/1) ... [2020-09-25 13:05:25,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:25, skipping insertion in model container [2020-09-25 13:05:25,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:05:25" (1/1) ... [2020-09-25 13:05:25,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:05:25,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:05:26,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:05:26,228 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:05:26,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:05:26,479 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:05:26,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26 WrapperNode [2020-09-25 13:05:26,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:05:26,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:05:26,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:05:26,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:05:26,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (1/1) ... [2020-09-25 13:05:26,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (1/1) ... [2020-09-25 13:05:26,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (1/1) ... [2020-09-25 13:05:26,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (1/1) ... [2020-09-25 13:05:26,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (1/1) ... [2020-09-25 13:05:26,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (1/1) ... [2020-09-25 13:05:26,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (1/1) ... [2020-09-25 13:05:26,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:05:26,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:05:26,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:05:26,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:05:26,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:05:26,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:05:26,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:05:26,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:05:26,668 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:05:26,668 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:05:26,668 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:05:26,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:05:26,669 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:05:26,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:05:26,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:05:26,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:05:26,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:05:26,670 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:05:26,670 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:05:26,670 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:05:26,670 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:05:26,671 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:05:26,671 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:05:26,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:05:26,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:05:26,672 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:05:26,672 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:05:26,672 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:05:26,672 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:05:26,672 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:05:26,672 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:05:26,673 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:05:26,673 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:05:26,673 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:05:26,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:05:26,673 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:05:26,674 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:05:26,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:05:26,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:05:26,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:05:26,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:05:26,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:05:26,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:05:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:05:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:05:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:05:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:05:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:05:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:05:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:05:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:05:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:05:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:05:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:05:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:05:26,677 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:05:26,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:05:26,677 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:05:26,677 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:05:26,677 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:05:26,678 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:05:26,678 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:05:26,678 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:05:26,678 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:05:26,678 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:05:26,678 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:05:26,678 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:05:26,679 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:05:26,679 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:05:26,679 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:05:26,679 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:05:26,679 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:05:26,680 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:05:26,680 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:05:26,680 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:05:26,680 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:05:26,680 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:05:26,680 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:05:26,680 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:05:26,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:05:26,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:05:26,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:05:26,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:05:26,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:05:26,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:05:26,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:05:26,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:05:26,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:05:26,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:05:26,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:05:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:05:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:05:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:05:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:05:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:05:27,864 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:05:27,864 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:05:27,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:05:27 BoogieIcfgContainer [2020-09-25 13:05:27,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:05:27,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:05:27,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:05:27,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:05:27,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:05:25" (1/3) ... [2020-09-25 13:05:27,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618d211e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:05:27, skipping insertion in model container [2020-09-25 13:05:27,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (2/3) ... [2020-09-25 13:05:27,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618d211e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:05:27, skipping insertion in model container [2020-09-25 13:05:27,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:05:27" (3/3) ... [2020-09-25 13:05:27,882 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2020-09-25 13:05:27,893 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:05:27,904 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:05:27,926 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:05:27,955 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:05:27,955 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:05:27,956 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:05:27,956 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:05:27,956 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:05:27,956 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:05:27,956 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:05:27,956 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:05:27,983 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2020-09-25 13:05:27,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:05:28,000 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:28,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:05:28,002 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:28,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:28,011 INFO L82 PathProgramCache]: Analyzing trace with hash 750514354, now seen corresponding path program 1 times [2020-09-25 13:05:28,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:28,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361347872] [2020-09-25 13:05:28,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:28,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:28,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:29,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:30,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:32,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:05:33,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:05:33,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 13:05:33,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:05:33,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:05:33,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 13:05:33,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:05:33,837 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:33,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:05:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:34,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:34,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:05:34,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:34,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-25 13:05:34,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:34,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:34,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:34,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:34,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:05:34,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:34,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:05:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:34,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:34,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:34,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:34,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:34,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:05:34,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:34,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:34,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:34,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:34,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:34,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:34,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:05:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:34,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:34,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:34,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:34,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:34,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:05:34,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:34,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:34,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:34,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:34,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:34,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:34,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:05:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:34,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:34,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:34,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:34,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:34,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 13:05:34,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:34,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:34,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:34,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:34,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:34,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:34,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:05:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:34,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:34,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:34,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:34,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:34,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:05:34,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:34,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:34,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:34,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:34,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:34,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:34,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:05:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:34,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:34,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:34,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:34,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:34,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:34,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:34,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:34,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:34,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:34,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:34,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:34,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:05:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:34,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:34,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:34,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:34,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:34,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:05:34,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:34,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:34,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:34,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:34,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:34,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:34,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:05:34,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361347872] [2020-09-25 13:05:34,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:05:34,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:05:34,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567632254] [2020-09-25 13:05:34,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:05:34,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:05:34,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:05:34,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:05:34,562 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2020-09-25 13:05:35,157 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:37,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:05:37,079 INFO L93 Difference]: Finished difference Result 595 states and 724 transitions. [2020-09-25 13:05:37,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:05:37,082 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:05:37,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:05:37,103 INFO L225 Difference]: With dead ends: 595 [2020-09-25 13:05:37,103 INFO L226 Difference]: Without dead ends: 419 [2020-09-25 13:05:37,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:05:37,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-09-25 13:05:37,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 350. [2020-09-25 13:05:37,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-09-25 13:05:37,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 387 transitions. [2020-09-25 13:05:37,296 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 387 transitions. Word has length 142 [2020-09-25 13:05:37,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:05:37,298 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 387 transitions. [2020-09-25 13:05:37,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:05:37,299 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 387 transitions. [2020-09-25 13:05:37,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 13:05:37,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:37,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:05:37,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:05:37,315 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:37,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:37,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1285546778, now seen corresponding path program 1 times [2020-09-25 13:05:37,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:37,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608083388] [2020-09-25 13:05:37,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:37,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:37,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:37,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:41,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:42,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:42,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:05:42,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:05:42,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 13:05:42,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:42,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:42,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:05:42,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:05:42,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 13:05:42,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:05:42,773 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:42,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:05:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:42,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:05:43,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-25 13:05:43,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:05:43,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:05:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:43,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:05:43,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:43,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:43,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:43,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:05:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:43,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:43,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:43,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:43,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:43,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:05:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:43,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:05:43,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:43,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:05:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:43,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:05:43,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:43,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:43,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:43,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:05:43,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:05:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:05:43,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:05:43,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:43,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:43,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:05:43,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:05:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:43,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:05:43,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:43,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:43,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:43,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:05:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:43,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:05:43,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:05:43,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:43,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:43,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:05:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:43,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:43,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:43,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:43,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:43,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:05:43,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608083388] [2020-09-25 13:05:43,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:05:43,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:05:43,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761761791] [2020-09-25 13:05:43,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:05:43,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:05:43,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:05:43,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:05:43,354 INFO L87 Difference]: Start difference. First operand 350 states and 387 transitions. Second operand 9 states. [2020-09-25 13:05:43,831 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:44,988 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:45,346 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:45,744 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:46,133 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:05:46,511 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:47,037 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:47,364 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:47,788 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:48,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:05:48,958 INFO L93 Difference]: Finished difference Result 1030 states and 1291 transitions. [2020-09-25 13:05:48,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:05:48,962 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 13:05:48,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:05:48,975 INFO L225 Difference]: With dead ends: 1030 [2020-09-25 13:05:48,975 INFO L226 Difference]: Without dead ends: 743 [2020-09-25 13:05:48,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 13:05:48,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2020-09-25 13:05:49,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 543. [2020-09-25 13:05:49,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2020-09-25 13:05:49,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 608 transitions. [2020-09-25 13:05:49,084 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 608 transitions. Word has length 151 [2020-09-25 13:05:49,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:05:49,085 INFO L479 AbstractCegarLoop]: Abstraction has 543 states and 608 transitions. [2020-09-25 13:05:49,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:05:49,085 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 608 transitions. [2020-09-25 13:05:49,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 13:05:49,088 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:49,088 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:05:49,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:05:49,088 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:49,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:49,089 INFO L82 PathProgramCache]: Analyzing trace with hash -57306092, now seen corresponding path program 1 times [2020-09-25 13:05:49,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:49,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997339883] [2020-09-25 13:05:49,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:49,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:49,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:50,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:51,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:54,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:54,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 13:05:54,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:05:54,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 13:05:54,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:54,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:05:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:05:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 13:05:54,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:05:54,489 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:54,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:05:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:54,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:54,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:54,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:05:54,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:54,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-25 13:05:54,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:54,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:54,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:54,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:54,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:05:54,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:54,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:05:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:54,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:54,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:54,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:54,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:54,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:54,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:54,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:54,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:54,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:54,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:54,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:54,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:05:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:54,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:54,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:54,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:54,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:54,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:05:54,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:54,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:54,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:54,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:54,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:54,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:54,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:05:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:54,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:54,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:54,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:54,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:54,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:05:54,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:54,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:54,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:54,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:54,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:54,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:54,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:05:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:54,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:54,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:54,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:54,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:54,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:54,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:54,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:54,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:05:54,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:05:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:54,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:54,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:54,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:05:54,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:54,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:05:54,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:54,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:54,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:54,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:54,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:05:54,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:05:54,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 13:05:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:54,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:54,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:54,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:05:54,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:54,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:05:54,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:54,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:54,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:05:54,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:05:54,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:05:54,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:55,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:05:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:55,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:55,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:55,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:55,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:55,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:05:55,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:55,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:55,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:55,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:55,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:55,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:05:55,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 13:05:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:55,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:55,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:55,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:55,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:55,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:05:55,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:55,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:55,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:55,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:55,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:55,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:55,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 13:05:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:55,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:55,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:55,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:55,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:55,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:05:55,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:55,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:55,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:55,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:55,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:55,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:55,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:05:55,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997339883] [2020-09-25 13:05:55,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:05:55,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 13:05:55,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683257285] [2020-09-25 13:05:55,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:05:55,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:05:55,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:05:55,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:05:55,139 INFO L87 Difference]: Start difference. First operand 543 states and 608 transitions. Second operand 8 states. [2020-09-25 13:05:55,578 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:57,179 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:58,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:05:58,120 INFO L93 Difference]: Finished difference Result 1667 states and 2057 transitions. [2020-09-25 13:05:58,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 13:05:58,121 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 165 [2020-09-25 13:05:58,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:05:58,137 INFO L225 Difference]: With dead ends: 1667 [2020-09-25 13:05:58,137 INFO L226 Difference]: Without dead ends: 1234 [2020-09-25 13:05:58,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-09-25 13:05:58,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1234 states. [2020-09-25 13:05:58,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1234 to 923. [2020-09-25 13:05:58,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2020-09-25 13:05:58,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1044 transitions. [2020-09-25 13:05:58,301 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1044 transitions. Word has length 165 [2020-09-25 13:05:58,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:05:58,302 INFO L479 AbstractCegarLoop]: Abstraction has 923 states and 1044 transitions. [2020-09-25 13:05:58,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:05:58,302 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1044 transitions. [2020-09-25 13:05:58,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 13:05:58,306 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:58,306 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] [2020-09-25 13:05:58,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:05:58,306 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:58,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:58,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1435242309, now seen corresponding path program 1 times [2020-09-25 13:05:58,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:58,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584307860] [2020-09-25 13:05:58,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:58,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:58,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:59,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:01,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:01,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 13:06:01,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:06:01,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3366 [2020-09-25 13:06:01,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:01,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:01,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:06:01,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:06:01,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 13:06:01,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,078 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:06:02,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:06:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:06:02,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-25 13:06:02,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:06:02,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:06:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:02,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:02,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:02,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:06:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:02,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:02,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:02,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:06:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:02,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:06:02,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:06:02,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:06:02,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:06:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:02,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:02,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:02,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:06:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:06:02,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:06:02,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:06:02,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 13:06:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:06:02,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:06:02,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:06:02,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:06:02,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:06:02,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:06:02,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 13:06:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:02,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:02,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:06:02,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 13:06:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:02,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:06:02,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:06:02,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:06:02,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:06:02,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584307860] [2020-09-25 13:06:02,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:06:02,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 13:06:02,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305780380] [2020-09-25 13:06:02,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 13:06:02,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:06:02,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 13:06:02,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:06:02,699 INFO L87 Difference]: Start difference. First operand 923 states and 1044 transitions. Second operand 11 states. [2020-09-25 13:06:03,460 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:06:04,880 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:06:05,218 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:06:05,585 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:06:05,957 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:06:06,274 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:06:06,856 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:06:07,202 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:06:07,540 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:06:08,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:06:08,629 INFO L93 Difference]: Finished difference Result 1246 states and 1509 transitions. [2020-09-25 13:06:08,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 13:06:08,629 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2020-09-25 13:06:08,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:06:08,638 INFO L225 Difference]: With dead ends: 1246 [2020-09-25 13:06:08,638 INFO L226 Difference]: Without dead ends: 1243 [2020-09-25 13:06:08,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2020-09-25 13:06:08,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2020-09-25 13:06:08,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 923. [2020-09-25 13:06:08,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2020-09-25 13:06:08,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1042 transitions. [2020-09-25 13:06:08,804 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1042 transitions. Word has length 166 [2020-09-25 13:06:08,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:06:08,805 INFO L479 AbstractCegarLoop]: Abstraction has 923 states and 1042 transitions. [2020-09-25 13:06:08,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 13:06:08,806 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1042 transitions. [2020-09-25 13:06:08,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 13:06:08,809 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:06:08,810 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] [2020-09-25 13:06:08,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:06:08,810 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:06:08,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:06:08,811 INFO L82 PathProgramCache]: Analyzing trace with hash 350443365, now seen corresponding path program 1 times [2020-09-25 13:06:08,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:06:08,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [698255694] [2020-09-25 13:06:08,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:06:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:08,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:09,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:09,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 13:06:09,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:09,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 831 [2020-09-25 13:06:09,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:09,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:09,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:06:09,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-09-25 13:06:09,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:06:09,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:09,961 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:06:09,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:06:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:09,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:06:10,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 13:06:10,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:10,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:06:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:10,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:06:10,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:10,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:06:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:10,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:06:10,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:10,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:06:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:10,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:10,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:10,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:06:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:10,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:10,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:10,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:06:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:06:10,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:10,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:10,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 13:06:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 13:06:10,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 13:06:10,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:06:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 13:06:10,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:06:10,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:10,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:06:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:06:10,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 13:06:10,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:06:10,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 13:06:10,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:10,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:06:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:06:10,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:10,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:10,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:06:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:06:10,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:10,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 13:06:10,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:10,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 13:06:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:10,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:06:10,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:06:10,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:10,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 13:06:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:10,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:06:10,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:06:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:10,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:06:10,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [698255694] [2020-09-25 13:06:10,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:06:10,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:06:10,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089980131] [2020-09-25 13:06:10,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:06:10,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:06:10,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:06:10,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:06:10,391 INFO L87 Difference]: Start difference. First operand 923 states and 1042 transitions. Second operand 10 states. [2020-09-25 13:06:11,719 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188