/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:19:11,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:19:11,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:19:11,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:19:11,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:19:11,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:19:11,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:19:11,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:19:11,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:19:11,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:19:11,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:19:11,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:19:11,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:19:11,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:19:11,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:19:11,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:19:11,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:19:11,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:19:11,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:19:11,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:19:11,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:19:11,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:19:11,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:19:11,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:19:11,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:19:11,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:19:11,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:19:11,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:19:11,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:19:11,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:19:11,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:19:11,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:19:11,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:19:11,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:19:11,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:19:11,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:19:11,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:19:11,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:19:11,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:19:11,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:19:11,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:19:11,243 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:19:11,271 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:19:11,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:19:11,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:19:11,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:19:11,273 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:19:11,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:19:11,273 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:19:11,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:19:11,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:19:11,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:19:11,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:19:11,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:19:11,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:19:11,275 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:19:11,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:19:11,275 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:19:11,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:19:11,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:19:11,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:19:11,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:19:11,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:19:11,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:19:11,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:19:11,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:19:11,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:19:11,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:19:11,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:19:11,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:19:11,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:19:11,278 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:19:11,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:19:11,786 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:19:11,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:19:11,794 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:19:11,795 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:19:11,797 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2020-09-24 20:19:11,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94e9a2d83/cee28cd4d00a4593a0da596f9fecbaa4/FLAG223b3c12a [2020-09-24 20:19:12,489 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:19:12,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2020-09-24 20:19:12,506 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94e9a2d83/cee28cd4d00a4593a0da596f9fecbaa4/FLAG223b3c12a [2020-09-24 20:19:12,768 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94e9a2d83/cee28cd4d00a4593a0da596f9fecbaa4 [2020-09-24 20:19:12,782 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:19:12,789 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:19:12,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:19:12,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:19:12,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:19:12,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:19:12" (1/1) ... [2020-09-24 20:19:12,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:12, skipping insertion in model container [2020-09-24 20:19:12,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:19:12" (1/1) ... [2020-09-24 20:19:12,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:19:12,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:19:13,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:19:13,287 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:19:13,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:19:13,559 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:19:13,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:13 WrapperNode [2020-09-24 20:19:13,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:19:13,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:19:13,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:19:13,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:19:13,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:13" (1/1) ... [2020-09-24 20:19:13,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:13" (1/1) ... [2020-09-24 20:19:13,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:13" (1/1) ... [2020-09-24 20:19:13,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:13" (1/1) ... [2020-09-24 20:19:13,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:13" (1/1) ... [2020-09-24 20:19:13,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:13" (1/1) ... [2020-09-24 20:19:13,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:13" (1/1) ... [2020-09-24 20:19:13,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:19:13,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:19:13,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:19:13,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:19:13,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:19:13,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:19:13,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:19:13,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:19:13,772 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:19:13,772 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:19:13,772 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:19:13,772 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:19:13,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:19:13,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:19:13,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:19:13,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:19:13,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:19:13,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:19:13,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:19:13,774 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:19:13,774 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:19:13,774 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:19:13,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:19:13,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:19:13,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:19:13,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:19:13,775 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:19:13,776 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:19:13,776 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:19:13,776 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:19:13,776 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:19:13,776 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:19:13,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:19:13,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:19:13,777 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:19:13,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:19:13,777 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 20:19:13,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 20:19:13,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 20:19:13,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 20:19:13,778 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:19:13,778 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:19:13,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:19:13,778 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:19:13,778 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:19:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:19:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:19:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:19:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:19:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:19:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:19:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:19:13,780 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:19:13,780 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:19:13,780 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:19:13,780 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:19:13,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:19:13,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:19:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:19:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:19:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:19:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:19:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:19:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:19:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:19:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:19:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:19:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:19:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:19:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:19:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:19:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:19:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:19:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:19:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:19:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:19:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:19:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 20:19:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:19:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:19:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:19:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:19:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:19:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:19:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:19:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 20:19:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 20:19:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:19:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:19:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:19:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:19:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 20:19:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:19:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:19:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:19:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:19:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:19:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:19:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:19:14,949 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:19:14,949 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:19:14,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:19:14 BoogieIcfgContainer [2020-09-24 20:19:14,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:19:14,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:19:14,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:19:14,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:19:14,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:19:12" (1/3) ... [2020-09-24 20:19:14,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372ec5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:19:14, skipping insertion in model container [2020-09-24 20:19:14,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:13" (2/3) ... [2020-09-24 20:19:14,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372ec5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:19:14, skipping insertion in model container [2020-09-24 20:19:14,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:19:14" (3/3) ... [2020-09-24 20:19:14,972 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2020-09-24 20:19:14,982 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:19:14,993 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:19:15,015 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:19:15,044 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:19:15,044 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:19:15,045 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:19:15,045 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:19:15,045 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:19:15,045 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:19:15,045 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:19:15,045 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:19:15,073 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-24 20:19:15,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 20:19:15,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:19:15,093 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:19:15,093 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:19:15,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:19:15,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1009197842, now seen corresponding path program 1 times [2020-09-24 20:19:15,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:19:15,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421870586] [2020-09-24 20:19:15,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:19:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:15,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:15,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:17,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:17,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:20,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:20,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:20,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 20:19:20,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:19:20,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 20:19:20,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:20,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:19:20,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 20:19:20,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-24 20:19:20,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 20:19:21,150 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:19:21,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:21,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:21,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:21,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:19:21,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:21,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-09-24 20:19:21,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:21,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:21,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:21,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 20:19:21,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:21,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:19:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:21,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:21,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:21,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:21,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:21,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:19:21,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:21,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:21,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:21,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:21,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:21,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:19:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:21,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:21,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:21,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:21,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:21,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:19:21,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:21,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:21,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:21,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:21,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:21,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:19:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:21,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:21,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:21,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:21,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:21,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:19:21,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:21,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:21,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:19:21,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:21,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:19:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:21,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:21,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:21,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:21,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:21,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:21,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:21,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:21,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:21,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:21,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:21,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:19:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:21,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:21,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:21,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:19:21,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:21,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:19:21,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:21,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:21,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:21,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:19:21,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:21,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:19:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:21,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:21,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:21,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:19:21,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:21,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:19:21,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:21,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:21,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:21,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:19:21,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:21,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:21,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:21,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:21,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:21,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:21,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:21,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:21,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:21,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 20:19:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:21,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:21,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:21,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:21,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:21,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:21,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:21,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:21,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:21,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:19:21,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:21,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 20:19:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:21,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:21,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:21,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:21,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:21,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:19:21,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:21,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:19:21,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:21,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:19:21,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:21,916 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 20:19:21,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421870586] [2020-09-24 20:19:21,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:19:21,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:19:21,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516582931] [2020-09-24 20:19:21,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:19:21,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:19:21,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:19:21,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:19:21,964 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 9 states. [2020-09-24 20:19:22,608 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:19:23,696 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-24 20:19:24,363 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 194 [2020-09-24 20:19:25,692 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:19:25,996 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:19:26,318 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:19:26,763 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:19:27,098 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:19:27,400 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:19:28,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:19:28,217 INFO L93 Difference]: Finished difference Result 558 states and 684 transitions. [2020-09-24 20:19:28,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 20:19:28,225 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 20:19:28,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:19:28,255 INFO L225 Difference]: With dead ends: 558 [2020-09-24 20:19:28,255 INFO L226 Difference]: Without dead ends: 387 [2020-09-24 20:19:28,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-09-24 20:19:28,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2020-09-24 20:19:28,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 339. [2020-09-24 20:19:28,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-09-24 20:19:28,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 384 transitions. [2020-09-24 20:19:28,443 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 384 transitions. Word has length 160 [2020-09-24 20:19:28,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:19:28,446 INFO L479 AbstractCegarLoop]: Abstraction has 339 states and 384 transitions. [2020-09-24 20:19:28,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:19:28,447 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 384 transitions. [2020-09-24 20:19:28,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 20:19:28,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:19:28,464 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:19:28,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:19:28,465 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:19:28,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:19:28,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1749038949, now seen corresponding path program 1 times [2020-09-24 20:19:28,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:19:28,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933735086] [2020-09-24 20:19:28,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:19:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:28,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:28,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:30,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:30,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 20:19:30,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:19:30,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2184 [2020-09-24 20:19:30,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:30,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:19:30,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-09-24 20:19:30,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:19:30,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:31,066 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:19:31,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:19:31,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 20:19:31,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:31,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:19:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:31,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:31,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:31,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:19:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:31,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:31,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:31,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:19:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:31,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:31,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:31,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:19:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:31,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:31,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:31,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:19:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:19:31,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:31,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:31,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 20:19:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:19:31,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:31,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:31,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:31,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:31,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:31,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:19:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:19:31,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 20:19:31,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:19:31,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:19:31,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:19:31,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:31,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:19:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:19:31,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 20:19:31,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:19:31,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:19:31,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:31,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:19:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:19:31,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:31,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:31,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:19:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:19:31,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:31,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:19:31,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:31,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 20:19:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:31,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:31,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:19:31,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:31,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 20:19:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:31,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:31,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:19:31,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:31,636 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 20:19:31,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933735086] [2020-09-24 20:19:31,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:19:31,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 20:19:31,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940563317] [2020-09-24 20:19:31,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:19:31,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:19:31,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:19:31,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:19:31,642 INFO L87 Difference]: Start difference. First operand 339 states and 384 transitions. Second operand 10 states. [2020-09-24 20:19:33,244 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:19:33,564 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:19:33,886 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:19:34,227 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:34,605 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:19:34,892 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:19:35,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:19:35,507 INFO L93 Difference]: Finished difference Result 649 states and 788 transitions. [2020-09-24 20:19:35,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:19:35,511 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-24 20:19:35,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:19:35,517 INFO L225 Difference]: With dead ends: 649 [2020-09-24 20:19:35,517 INFO L226 Difference]: Without dead ends: 425 [2020-09-24 20:19:35,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:19:35,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-09-24 20:19:35,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 347. [2020-09-24 20:19:35,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-09-24 20:19:35,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 392 transitions. [2020-09-24 20:19:35,585 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 392 transitions. Word has length 194 [2020-09-24 20:19:35,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:19:35,586 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 392 transitions. [2020-09-24 20:19:35,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:19:35,586 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 392 transitions. [2020-09-24 20:19:35,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 20:19:35,589 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:19:35,590 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:19:35,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:19:35,591 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:19:35,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:19:35,591 INFO L82 PathProgramCache]: Analyzing trace with hash 609245125, now seen corresponding path program 1 times [2020-09-24 20:19:35,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:19:35,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213040063] [2020-09-24 20:19:35,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:19:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:35,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:35,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:37,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:37,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 20:19:37,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:19:37,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1852 [2020-09-24 20:19:37,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:37,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:19:37,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-24 20:19:37,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:19:37,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:37,763 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:19:37,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:37,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:37,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:37,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:19:37,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:37,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 20:19:37,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:37,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:37,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:37,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:37,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:37,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:19:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:37,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:37,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:37,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:37,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:37,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:37,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:37,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:37,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:37,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:37,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:37,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:19:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:37,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:37,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:37,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:37,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:37,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:37,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:37,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:37,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:37,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:37,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:37,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:19:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:37,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:37,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:37,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:37,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:37,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:19:37,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:37,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:37,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:37,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:37,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:37,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:19:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:37,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:37,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:37,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:37,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:37,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:37,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:37,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:37,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:19:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:37,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:37,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:37,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:19:37,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:37,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:37,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:37,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:37,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:37,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 20:19:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:37,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:37,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:37,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:19:37,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:37,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:37,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:37,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:37,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:37,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:37,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:37,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:37,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:37,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:37,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:37,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:37,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:37,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:37,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:37,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:37,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:37,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:37,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:19:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:38,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:38,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:38,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:19:38,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:38,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 20:19:38,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:38,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:19:38,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:19:38,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:19:38,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:38,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:19:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:38,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:38,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:38,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:19:38,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:38,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 20:19:38,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:38,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:19:38,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:19:38,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:19:38,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:38,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:19:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:38,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:38,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:38,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:19:38,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:38,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:19:38,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:19:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:38,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:19:38,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:38,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:19:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:38,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:38,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:38,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:19:38,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:38,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:38,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:38,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:38,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:19:38,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:38,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:38,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 20:19:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:38,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:38,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:38,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:38,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:38,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:38,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:38,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:38,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:19:38,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:38,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:38,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 20:19:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:38,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:38,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:38,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:38,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:38,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:38,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:38,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:38,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:19:38,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:38,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:38,290 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 20:19:38,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [213040063] [2020-09-24 20:19:38,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:19:38,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:19:38,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696475335] [2020-09-24 20:19:38,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:19:38,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:19:38,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:19:38,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:19:38,294 INFO L87 Difference]: Start difference. First operand 347 states and 392 transitions. Second operand 9 states. [2020-09-24 20:19:39,897 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:19:40,206 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:19:40,526 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:19:40,861 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:19:41,158 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:19:41,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:19:41,912 INFO L93 Difference]: Finished difference Result 668 states and 825 transitions. [2020-09-24 20:19:41,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 20:19:41,916 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 194 [2020-09-24 20:19:41,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:19:41,924 INFO L225 Difference]: With dead ends: 668 [2020-09-24 20:19:41,926 INFO L226 Difference]: Without dead ends: 436 [2020-09-24 20:19:41,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 20:19:41,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2020-09-24 20:19:41,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 353. [2020-09-24 20:19:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-09-24 20:19:41,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 398 transitions. [2020-09-24 20:19:41,997 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 398 transitions. Word has length 194 [2020-09-24 20:19:41,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:19:41,999 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 398 transitions. [2020-09-24 20:19:41,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:19:41,999 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 398 transitions. [2020-09-24 20:19:42,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 20:19:42,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:19:42,003 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:19:42,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:19:42,003 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:19:42,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:19:42,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1182615540, now seen corresponding path program 1 times [2020-09-24 20:19:42,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:19:42,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396191872] [2020-09-24 20:19:42,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:19:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:43,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:47,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:47,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-09-24 20:19:47,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:19:47,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-24 20:19:47,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:47,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:19:47,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:19:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-24 20:19:47,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:47,409 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:19:47,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:47,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:47,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:47,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:19:47,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:47,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-24 20:19:47,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:47,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:47,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:47,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:19:47,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:47,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:19:47,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:47,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:47,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:47,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:47,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:47,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:47,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:47,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:47,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:47,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:47,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:47,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:19:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:47,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:47,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:47,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:47,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:47,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:47,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:47,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:47,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:47,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:47,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:47,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:19:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:47,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:47,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:47,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:47,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:47,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:19:47,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:47,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:47,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:47,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:19:47,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:47,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:19:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:47,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:47,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:47,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:47,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:47,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:47,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:47,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:47,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:47,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:47,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:47,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:19:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:47,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:47,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:47,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:19:47,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:47,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:47,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:47,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:47,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:47,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:19:47,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:47,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:19:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:47,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:47,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:47,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 20:19:47,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:47,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 20:19:47,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:47,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:19:47,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:19:47,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 20:19:47,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:47,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:47,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:47,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:47,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:19:47,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:47,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:19:47,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:47,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:47,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:47,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:19:47,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:47,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:47,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:47,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:47,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:47,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:47,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:47,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:47,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:47,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:47,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:47,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:47,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 20:19:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:47,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:47,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:47,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:19:47,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:47,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 20:19:47,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:47,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:19:47,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:47,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:19:47,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:48,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:19:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:48,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:48,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:48,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:48,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:48,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:19:48,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:48,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:19:48,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:48,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:19:48,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:48,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 20:19:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:48,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:48,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:48,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:19:48,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:48,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:19:48,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:48,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:19:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:48,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:48,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:48,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:48,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:48,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:48,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:48,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:48,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:48,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:48,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:48,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:48,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:48,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 20:19:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:48,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:48,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:48,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:19:48,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:48,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 20:19:48,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:48,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:48,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-24 20:19:48,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:48,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:48,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:19:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:48,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:48,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:48,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:19:48,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:48,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:19:48,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:48,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:48,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:48,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:48,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:48,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:19:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:48,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:48,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:48,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:19:48,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:48,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:48,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:48,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:48,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:48,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:48,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:48,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:19:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:48,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:48,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:48,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:19:48,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:48,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:48,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:48,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:48,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:48,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:48,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:48,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-24 20:19:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:48,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:48,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:48,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:48,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:48,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:48,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:48,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:48,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:19:48,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:48,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:48,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 20:19:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:48,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:48,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:48,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:48,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:48,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:48,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:48,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:48,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:19:48,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:48,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:48,384 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-24 20:19:48,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396191872] [2020-09-24 20:19:48,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:19:48,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 20:19:48,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014166667] [2020-09-24 20:19:48,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 20:19:48,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:19:48,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 20:19:48,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-09-24 20:19:48,390 INFO L87 Difference]: Start difference. First operand 353 states and 398 transitions. Second operand 15 states. [2020-09-24 20:19:49,165 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:19:50,692 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:50,946 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:19:51,271 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:51,624 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:19:51,934 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:52,466 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:19:52,772 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:53,109 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:19:53,452 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:53,806 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:19:54,140 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:19:54,719 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-24 20:19:55,049 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:19:55,845 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-09-24 20:19:57,381 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-24 20:19:57,973 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 20:19:58,603 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-24 20:19:59,241 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 20:20:00,938 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:20:01,252 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:20:01,600 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:20:01,990 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 194