/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:12:30,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:12:30,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:12:30,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:12:30,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:12:30,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:12:30,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:12:30,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:12:30,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:12:30,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:12:30,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:12:30,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:12:30,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:12:30,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:12:30,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:12:30,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:12:30,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:12:30,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:12:30,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:12:30,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:12:30,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:12:30,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:12:30,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:12:30,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:12:30,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:12:30,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:12:30,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:12:30,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:12:30,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:12:30,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:12:30,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:12:30,656 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:12:30,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:12:30,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:12:30,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:12:30,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:12:30,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:12:30,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:12:30,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:12:30,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:12:30,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:12:30,664 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 19:12:30,709 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:12:30,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:12:30,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:12:30,711 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:12:30,711 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:12:30,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:12:30,712 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:12:30,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:12:30,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:12:30,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:12:30,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:12:30,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:12:30,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:12:30,716 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:12:30,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:12:30,717 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:12:30,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:12:30,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:12:30,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:12:30,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:12:30,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:12:30,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:12:30,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:12:30,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:12:30,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:12:30,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:12:30,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:12:30,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:12:30,721 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:12:30,721 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:12:31,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:12:31,215 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:12:31,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:12:31,222 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:12:31,224 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:12:31,225 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2020-09-24 19:12:31,317 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/758a1a9c6/558fc77cf5f9458ab1f52be0df09f5a4/FLAGcf67ced70 [2020-09-24 19:12:31,944 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:12:31,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2020-09-24 19:12:31,961 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/758a1a9c6/558fc77cf5f9458ab1f52be0df09f5a4/FLAGcf67ced70 [2020-09-24 19:12:32,215 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/758a1a9c6/558fc77cf5f9458ab1f52be0df09f5a4 [2020-09-24 19:12:32,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:12:32,234 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:12:32,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:12:32,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:12:32,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:12:32,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:12:32" (1/1) ... [2020-09-24 19:12:32,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:32, skipping insertion in model container [2020-09-24 19:12:32,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:12:32" (1/1) ... [2020-09-24 19:12:32,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:12:32,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:12:32,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:12:32,862 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:12:32,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:12:33,031 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:12:33,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:33 WrapperNode [2020-09-24 19:12:33,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:12:33,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:12:33,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:12:33,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:12:33,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:33" (1/1) ... [2020-09-24 19:12:33,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:33" (1/1) ... [2020-09-24 19:12:33,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:33" (1/1) ... [2020-09-24 19:12:33,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:33" (1/1) ... [2020-09-24 19:12:33,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:33" (1/1) ... [2020-09-24 19:12:33,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:33" (1/1) ... [2020-09-24 19:12:33,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:33" (1/1) ... [2020-09-24 19:12:33,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:12:33,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:12:33,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:12:33,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:12:33,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:33" (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 19:12:33,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:12:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:12:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:12:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:12:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:12:33,288 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:12:33,288 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:12:33,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 19:12:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:12:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:12:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:12:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:12:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:12:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 19:12:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:12:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:12:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:12:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:12:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:12:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:12:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 19:12:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 19:12:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:12:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:12:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:12:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:12:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:12:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:12:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:12:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:12:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:12:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:12:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:12:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:12:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 19:12:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:12:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:12:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:12:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:12:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:12:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:12:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:12:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:12:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:12:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:12:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:12:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:12:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:12:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:12:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:12:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:12:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:12:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 19:12:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:12:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:12:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 19:12:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:12:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:12:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:12:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:12:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:12:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:12:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:12:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 19:12:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:12:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:12:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:12:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:12:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:12:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:12:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:12:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 19:12:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 19:12:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:12:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:12:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:12:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:12:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:12:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:12:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:12:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:12:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:12:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:12:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:12:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:12:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:12:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:12:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:12:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:12:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:12:33,309 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:12:33,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:12:33,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:12:33,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:12:33,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:12:33,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:12:33,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:12:33,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:12:34,608 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:12:34,609 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:12:34,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:12:34 BoogieIcfgContainer [2020-09-24 19:12:34,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:12:34,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:12:34,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:12:34,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:12:34,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:12:32" (1/3) ... [2020-09-24 19:12:34,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b139b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:12:34, skipping insertion in model container [2020-09-24 19:12:34,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:33" (2/3) ... [2020-09-24 19:12:34,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b139b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:12:34, skipping insertion in model container [2020-09-24 19:12:34,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:12:34" (3/3) ... [2020-09-24 19:12:34,638 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2020-09-24 19:12:34,651 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:12:34,668 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:12:34,691 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:12:34,737 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:12:34,738 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:12:34,738 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:12:34,738 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:12:34,739 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:12:34,739 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:12:34,740 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:12:34,740 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:12:34,779 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states. [2020-09-24 19:12:34,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 19:12:34,796 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:34,798 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:34,799 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:34,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:34,806 INFO L82 PathProgramCache]: Analyzing trace with hash 344061342, now seen corresponding path program 1 times [2020-09-24 19:12:34,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:34,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276803537] [2020-09-24 19:12:34,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:35,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:35,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 19:12:36,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:36,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:12:36,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:36,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:12:36,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:36,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:12:36,585 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:36,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:36,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:36,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:36,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-24 19:12:36,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:36,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:36,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:36,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:36,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:36,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:36,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:36,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:36,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:36,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:36,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:36,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:36,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:36,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:36,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:36,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:36,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:36,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:36,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:36,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:12:36,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:36,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:36,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:36,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:36,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:36,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:36,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:36,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:36,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:36,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:36,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:36,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:36,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:12:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:36,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:36,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:36,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:36,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:36,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:36,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:36,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:36,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:12:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:36,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:36,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:36,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:36,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:36,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:36,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:36,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:36,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:36,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276803537] [2020-09-24 19:12:36,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:36,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:12:36,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264698690] [2020-09-24 19:12:36,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:12:36,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:36,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:12:36,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:12:36,955 INFO L87 Difference]: Start difference. First operand 340 states. Second operand 3 states. [2020-09-24 19:12:38,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:38,466 INFO L93 Difference]: Finished difference Result 549 states and 647 transitions. [2020-09-24 19:12:38,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:12:38,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 19:12:38,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:38,489 INFO L225 Difference]: With dead ends: 549 [2020-09-24 19:12:38,489 INFO L226 Difference]: Without dead ends: 334 [2020-09-24 19:12:38,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:12:38,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-09-24 19:12:38,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 289. [2020-09-24 19:12:38,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-09-24 19:12:38,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 314 transitions. [2020-09-24 19:12:38,614 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 314 transitions. Word has length 142 [2020-09-24 19:12:38,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:38,615 INFO L479 AbstractCegarLoop]: Abstraction has 289 states and 314 transitions. [2020-09-24 19:12:38,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:12:38,615 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 314 transitions. [2020-09-24 19:12:38,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 19:12:38,621 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:38,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:38,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:12:38,622 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:38,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:38,622 INFO L82 PathProgramCache]: Analyzing trace with hash 13635849, now seen corresponding path program 1 times [2020-09-24 19:12:38,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:38,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645372640] [2020-09-24 19:12:38,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:38,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:38,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:39,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:39,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 19:12:39,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:39,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-24 19:12:39,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:39,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:39,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:12:39,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:12:39,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,055 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:40,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:40,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-24 19:12:40,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:40,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:40,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:40,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:40,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:40,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:40,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:40,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:40,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:40,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:40,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:12:40,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:40,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:40,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:40,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:40,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:12:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:40,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:40,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:40,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:12:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:40,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:40,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:40,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:40,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645372640] [2020-09-24 19:12:40,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:40,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:12:40,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244025502] [2020-09-24 19:12:40,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:12:40,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:40,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:12:40,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:12:40,364 INFO L87 Difference]: Start difference. First operand 289 states and 314 transitions. Second operand 4 states. [2020-09-24 19:12:41,113 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:12:42,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:42,374 INFO L93 Difference]: Finished difference Result 460 states and 514 transitions. [2020-09-24 19:12:42,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:12:42,375 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 19:12:42,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:42,384 INFO L225 Difference]: With dead ends: 460 [2020-09-24 19:12:42,384 INFO L226 Difference]: Without dead ends: 317 [2020-09-24 19:12:42,390 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:12:42,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-09-24 19:12:42,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 279. [2020-09-24 19:12:42,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-09-24 19:12:42,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 301 transitions. [2020-09-24 19:12:42,443 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 301 transitions. Word has length 143 [2020-09-24 19:12:42,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:42,444 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 301 transitions. [2020-09-24 19:12:42,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:12:42,444 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 301 transitions. [2020-09-24 19:12:42,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-24 19:12:42,447 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:42,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:42,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:12:42,448 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:42,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:42,448 INFO L82 PathProgramCache]: Analyzing trace with hash -431235613, now seen corresponding path program 1 times [2020-09-24 19:12:42,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:42,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628394940] [2020-09-24 19:12:42,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:43,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:43,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:43,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 19:12:43,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:43,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1034 [2020-09-24 19:12:43,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:12:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 19:12:43,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-24 19:12:43,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:43,905 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:43,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:43,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:44,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:44,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:44,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:44,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-24 19:12:44,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:44,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:44,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:44,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 19:12:44,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:44,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:44,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:44,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:44,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:44,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:44,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:44,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:44,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:44,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:44,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:12:44,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:44,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:44,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:44,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:44,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:44,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:44,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:44,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:44,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:12:44,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:44,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:44,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:44,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:44,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:44,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:44,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:12:44,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:44,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:44,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:44,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:12:44,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:44,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:44,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:44,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:44,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:44,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:44,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:44,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:44,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:44,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:44,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:12:44,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:44,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:12:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:44,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:44,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:44,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:44,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:44,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:44,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:44,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:44,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:44,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:44,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:44,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 19:12:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:44,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:44,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:44,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:44,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:44,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:44,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:44,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:44,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:44,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:44,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:44,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:44,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628394940] [2020-09-24 19:12:44,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:44,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:12:44,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669551716] [2020-09-24 19:12:44,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:12:44,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:44,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:12:44,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:12:44,334 INFO L87 Difference]: Start difference. First operand 279 states and 301 transitions. Second operand 4 states. [2020-09-24 19:12:45,084 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:12:47,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:47,065 INFO L93 Difference]: Finished difference Result 669 states and 758 transitions. [2020-09-24 19:12:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:12:47,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-09-24 19:12:47,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:47,076 INFO L225 Difference]: With dead ends: 669 [2020-09-24 19:12:47,076 INFO L226 Difference]: Without dead ends: 500 [2020-09-24 19:12:47,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:12:47,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-09-24 19:12:47,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 442. [2020-09-24 19:12:47,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-09-24 19:12:47,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 487 transitions. [2020-09-24 19:12:47,180 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 487 transitions. Word has length 152 [2020-09-24 19:12:47,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:47,181 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 487 transitions. [2020-09-24 19:12:47,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:12:47,182 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 487 transitions. [2020-09-24 19:12:47,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 19:12:47,185 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:47,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:47,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:12:47,186 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:47,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:47,187 INFO L82 PathProgramCache]: Analyzing trace with hash -2018319061, now seen corresponding path program 1 times [2020-09-24 19:12:47,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:47,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921912108] [2020-09-24 19:12:47,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 19:12:48,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1062 [2020-09-24 19:12:48,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 19:12:48,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 19:12:48,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 19:12:48,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,897 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:48,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:49,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:49,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:49,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:49,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-09-24 19:12:49,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 19:12:49,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:49,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:49,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:49,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:49,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:49,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:49,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:49,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:12:49,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:49,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:49,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:49,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:49,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:49,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:49,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:49,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:49,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:49,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:49,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:12:49,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:49,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:49,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:49,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:49,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:49,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:49,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:12:49,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:49,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:49,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:49,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:12:49,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:49,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:49,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:49,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:49,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:49,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:49,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:49,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:49,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:49,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:49,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:12:49,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:49,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:12:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:49,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:49,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:49,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:12:49,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:49,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:49,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:49,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:49,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:49,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:12:49,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:49,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:12:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:49,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:49,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:49,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:49,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:49,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:12:49,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:49,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:49,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:49,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:12:49,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:49,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:12:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:49,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:49,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:49,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:49,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:49,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:49,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:49,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:49,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:49,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:49,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:49,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:49,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1921912108] [2020-09-24 19:12:49,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:49,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:12:49,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818548885] [2020-09-24 19:12:49,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:12:49,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:49,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:12:49,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:12:49,526 INFO L87 Difference]: Start difference. First operand 442 states and 487 transitions. Second operand 10 states. [2020-09-24 19:12:50,040 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:12:51,869 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-09-24 19:12:52,549 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 190 [2020-09-24 19:12:53,005 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:12:53,426 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:12:53,749 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:12:54,133 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-24 19:12:54,463 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:12:55,108 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:57,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:57,123 INFO L93 Difference]: Finished difference Result 1205 states and 1449 transitions. [2020-09-24 19:12:57,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:12:57,124 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-24 19:12:57,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:57,135 INFO L225 Difference]: With dead ends: 1205 [2020-09-24 19:12:57,136 INFO L226 Difference]: Without dead ends: 873 [2020-09-24 19:12:57,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 19:12:57,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2020-09-24 19:12:57,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 771. [2020-09-24 19:12:57,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 771 states. [2020-09-24 19:12:57,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 885 transitions. [2020-09-24 19:12:57,281 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 885 transitions. Word has length 161 [2020-09-24 19:12:57,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:57,281 INFO L479 AbstractCegarLoop]: Abstraction has 771 states and 885 transitions. [2020-09-24 19:12:57,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:12:57,282 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 885 transitions. [2020-09-24 19:12:57,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-24 19:12:57,285 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:57,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:57,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:12:57,286 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:57,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:57,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1015179760, now seen corresponding path program 1 times [2020-09-24 19:12:57,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:57,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082370563] [2020-09-24 19:12:57,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:57,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:57,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:58,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:58,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 19:12:58,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:58,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:12:58,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:58,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:12:58,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-24 19:12:58,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:12:58,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:58,695 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:58,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:58,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:58,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:58,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:58,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:58,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 19:12:58,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:58,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:58,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:58,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:58,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:58,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:58,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:58,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:58,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:58,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:58,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:58,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:58,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:58,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:58,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:58,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:58,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:58,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:58,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:58,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:58,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:58,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:58,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:58,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:58,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:58,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:58,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:58,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:58,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:58,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:58,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:58,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:58,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:58,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:58,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:58,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:58,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:58,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:58,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:58,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:58,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:58,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:58,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:58,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:58,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:58,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:58,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:58,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:12:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:58,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:58,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:58,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:12:58,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:58,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:58,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:58,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:58,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:58,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:12:58,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:58,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:12:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:58,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:58,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:58,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:12:58,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:58,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:12:58,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:58,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:58,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:12:58,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:58,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:58,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:12:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:58,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:58,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:58,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:58,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:58,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:58,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:58,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:58,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 19:12:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:58,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:58,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:58,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:58,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:58,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:58,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:58,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:58,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:58,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:58,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:59,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:59,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082370563] [2020-09-24 19:12:59,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:59,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:12:59,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674819275] [2020-09-24 19:12:59,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:12:59,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:59,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:12:59,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:12:59,026 INFO L87 Difference]: Start difference. First operand 771 states and 885 transitions. Second operand 6 states. [2020-09-24 19:12:59,689 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:13:01,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:13:01,898 INFO L93 Difference]: Finished difference Result 1843 states and 2304 transitions. [2020-09-24 19:13:01,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:13:01,899 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-09-24 19:13:01,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:13:01,907 INFO L225 Difference]: With dead ends: 1843 [2020-09-24 19:13:01,907 INFO L226 Difference]: Without dead ends: 1182 [2020-09-24 19:13:01,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:13:01,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2020-09-24 19:13:02,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1001. [2020-09-24 19:13:02,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1001 states. [2020-09-24 19:13:02,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1180 transitions. [2020-09-24 19:13:02,053 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1180 transitions. Word has length 166 [2020-09-24 19:13:02,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:13:02,054 INFO L479 AbstractCegarLoop]: Abstraction has 1001 states and 1180 transitions. [2020-09-24 19:13:02,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:13:02,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1180 transitions. [2020-09-24 19:13:02,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-09-24 19:13:02,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:13:02,060 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:02,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:13:02,061 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:13:02,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:13:02,061 INFO L82 PathProgramCache]: Analyzing trace with hash 24171235, now seen corresponding path program 1 times [2020-09-24 19:13:02,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:13:02,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972119423] [2020-09-24 19:13:02,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:13:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:02,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:02,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:02,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:03,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:03,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 315 [2020-09-24 19:13:03,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:13:03,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:13:03,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-09-24 19:13:03,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:13:03,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:03,434 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:13:03,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:13:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:03,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:03,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:03,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:13:03,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:03,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 19:13:03,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:03,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:03,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:03,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:03,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:03,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:13:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:03,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:03,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:03,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:03,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:03,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:03,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:03,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:03,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:03,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:03,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:03,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:13:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:03,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:03,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:03,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:03,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:03,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:03,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:03,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:03,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:03,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:03,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:13:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:03,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:03,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:03,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:03,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:03,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:03,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:03,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:03,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:03,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:03,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:03,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:13:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:03,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:03,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:03,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:03,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:03,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:03,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:03,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:03,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:03,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:03,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:13:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:03,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:03,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:03,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:13:03,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:03,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:13:03,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:03,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:03,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:03,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:13:03,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:03,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 19:13:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:03,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:03,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-24 19:13:04,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:13:04,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-24 19:13:04,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:04,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:13:04,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-24 19:13:04,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:13:04,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:13:04,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-09-24 19:13:04,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:04,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 19:13:04,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:13:04,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:13:04,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-24 19:13:04,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:13:04,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:13:04,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:13:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:13:04,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:04,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:13:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:13:04,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:13:04,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:13:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:13:04,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:04,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:13:04,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:13:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:04,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:04,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:13:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:04,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:04,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-24 19:13:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:13:04,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:13:04,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:04,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 19:13:04,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:04,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:04,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:13:04,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-09-24 19:13:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:13:04,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:13:04,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:13:04,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-09-24 19:13:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:04,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:04,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:04,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-09-24 19:13:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:04,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:04,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:04,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,833 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:13:04,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972119423] [2020-09-24 19:13:04,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:13:04,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:13:04,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517046849] [2020-09-24 19:13:04,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:13:04,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:13:04,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:13:04,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:13:04,837 INFO L87 Difference]: Start difference. First operand 1001 states and 1180 transitions. Second operand 9 states. [2020-09-24 19:13:05,320 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:06,136 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:13:07,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:13:07,975 INFO L93 Difference]: Finished difference Result 1331 states and 1627 transitions. [2020-09-24 19:13:07,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 19:13:07,976 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 260 [2020-09-24 19:13:07,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:13:07,981 INFO L225 Difference]: With dead ends: 1331 [2020-09-24 19:13:07,981 INFO L226 Difference]: Without dead ends: 735 [2020-09-24 19:13:07,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2020-09-24 19:13:07,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-09-24 19:13:08,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 621. [2020-09-24 19:13:08,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-09-24 19:13:08,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 712 transitions. [2020-09-24 19:13:08,063 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 712 transitions. Word has length 260 [2020-09-24 19:13:08,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:13:08,064 INFO L479 AbstractCegarLoop]: Abstraction has 621 states and 712 transitions. [2020-09-24 19:13:08,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:13:08,064 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 712 transitions. [2020-09-24 19:13:08,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-09-24 19:13:08,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:13:08,071 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:08,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:13:08,071 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:13:08,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:13:08,072 INFO L82 PathProgramCache]: Analyzing trace with hash 372352314, now seen corresponding path program 1 times [2020-09-24 19:13:08,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:13:08,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519946944] [2020-09-24 19:13:08,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:13:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:08,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:08,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:09,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:09,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 344 [2020-09-24 19:13:09,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:13:09,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:13:09,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:09,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:13:09,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 294 [2020-09-24 19:13:09,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:13:09,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:09,429 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:13:09,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:13:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:09,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:09,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:09,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:13:09,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:09,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 19:13:09,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:09,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:09,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:09,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:09,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:09,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:13:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:09,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:09,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:09,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:09,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:09,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:09,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:09,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:09,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:09,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:09,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:09,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:13:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:09,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:09,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:09,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:09,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:09,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:09,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:09,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:09,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:09,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:09,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:09,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:13:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:09,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:09,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:09,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:09,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:09,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:09,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:09,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:09,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:09,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:09,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:09,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:13:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:09,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:09,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:09,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:09,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:09,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:09,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:09,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:09,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:09,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:09,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:09,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:13:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:09,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:09,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:09,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:09,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-24 19:13:09,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:13:09,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-24 19:13:09,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:09,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:09,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:09,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:09,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:09,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:09,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:09,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:09,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:09,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:13:09,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:13:09,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-24 19:13:09,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:09,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:09,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:09,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:09,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:09,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:13:10,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:13:10,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 19:13:10,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:10,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:13:10,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:13:10,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:10,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:13:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:13:10,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:10,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:10,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:13:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:13:10,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:13:10,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:10,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:13:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:13:10,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:10,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:10,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:13:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:10,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:10,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:10,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:13:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:10,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:10,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-24 19:13:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:13:10,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:13:10,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:10,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:10,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:10,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-09-24 19:13:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:13:10,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:10,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-09-24 19:13:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:13:10,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 19:13:10,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:13:10,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 19:13:10,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:13:10,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:13:10,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 19:13:10,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 19:13:10,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:13:10,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 19:13:10,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:13:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:10,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:13:10,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 19:13:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:10,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:10,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:13:10,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:10,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2020-09-24 19:13:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:10,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:10,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:10,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2020-09-24 19:13:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:10,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:10,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:10,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,668 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-24 19:13:10,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519946944] [2020-09-24 19:13:10,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:13:10,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 19:13:10,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503893089] [2020-09-24 19:13:10,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:13:10,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:13:10,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:13:10,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:13:10,671 INFO L87 Difference]: Start difference. First operand 621 states and 712 transitions. Second operand 11 states. [2020-09-24 19:13:12,782 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:13,079 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:13:13,376 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:13:13,706 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:13:14,056 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:13:14,345 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:13:14,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:13:14,977 INFO L93 Difference]: Finished difference Result 1259 states and 1502 transitions. [2020-09-24 19:13:14,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 19:13:14,978 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 283 [2020-09-24 19:13:14,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:13:14,986 INFO L225 Difference]: With dead ends: 1259 [2020-09-24 19:13:14,986 INFO L226 Difference]: Without dead ends: 748 [2020-09-24 19:13:14,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2020-09-24 19:13:14,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-09-24 19:13:15,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 637. [2020-09-24 19:13:15,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 637 states. [2020-09-24 19:13:15,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 732 transitions. [2020-09-24 19:13:15,083 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 732 transitions. Word has length 283 [2020-09-24 19:13:15,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:13:15,084 INFO L479 AbstractCegarLoop]: Abstraction has 637 states and 732 transitions. [2020-09-24 19:13:15,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:13:15,084 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 732 transitions. [2020-09-24 19:13:15,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-09-24 19:13:15,090 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:13:15,091 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:15,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:13:15,091 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:13:15,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:13:15,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1049888550, now seen corresponding path program 1 times [2020-09-24 19:13:15,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:13:15,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389620794] [2020-09-24 19:13:15,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:13:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:15,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:15,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:15,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:16,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:16,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 344 [2020-09-24 19:13:16,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:13:16,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-24 19:13:16,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:13:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 19:13:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:13:16,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:16,444 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:13:16,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:13:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:16,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:16,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:16,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:13:16,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:16,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 19:13:16,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:16,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:16,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:16,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:16,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:16,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:13:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:16,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:16,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:16,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:16,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:16,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:16,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:16,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:16,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:13:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:16,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:16,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:16,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:16,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:16,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:16,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:16,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:16,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:16,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:16,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:16,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:13:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:16,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:16,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:16,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:16,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:16,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:16,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:16,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:16,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:16,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:16,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:16,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:13:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:16,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:16,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:16,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:16,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:16,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:16,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:16,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:16,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:16,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:16,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:16,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:13:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:16,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:16,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:16,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-24 19:13:16,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:16,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 19:13:16,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:16,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:13:16,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:13:16,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:13:16,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:16,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:16,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:16,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:16,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:13:16,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:16,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 19:13:16,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:16,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:13:16,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:13:16,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:13:16,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:16,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:16,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:17,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:17,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:13:17,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:17,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 19:13:17,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:13:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:13:17,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:13:17,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:17,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:17,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:17,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:17,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:13:17,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:17,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 19:13:17,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:17,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:13:17,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:17,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:13:17,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:17,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:13:17,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:17,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:17,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:17,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:13:17,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:17,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:17,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:17,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:17,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:17,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:17,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:17,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:13:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:17,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:17,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:17,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:13:17,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:17,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:13:17,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:17,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:17,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:13:17,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:17,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:17,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:13:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:17,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:17,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:17,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:13:17,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:17,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:17,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:17,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:17,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:17,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:17,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:17,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:13:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:17,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:17,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:17,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:17,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:17,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:17,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:17,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:17,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:17,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:17,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:17,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:13:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:17,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:17,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:17,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:17,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:17,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:17,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:17,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:17,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:17,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:17,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:17,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-24 19:13:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:17,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:17,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:17,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:13:17,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:17,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:13:17,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:17,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:17,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 19:13:17,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:17,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:17,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:17,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:17,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:17,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:17,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:17,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:17,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:17,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:17,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:17,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:17,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:17,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-09-24 19:13:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:17,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:17,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:17,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:13:17,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:17,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:13:17,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:17,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:17,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:13:17,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:17,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:17,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-09-24 19:13:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:17,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:17,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:17,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:13:17,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:17,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:13:17,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:17,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:17,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-24 19:13:17,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:17,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:17,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:17,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:17,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:17,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 19:13:17,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:17,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:13:17,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:17,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:17,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:17,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:17,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:17,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:13:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:17,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:17,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:17,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:17,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:17,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:17,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:17,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:17,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:17,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:17,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:17,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 19:13:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:17,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:17,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:17,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:17,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:17,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:17,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:17,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:17,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:17,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:17,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:17,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2020-09-24 19:13:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:17,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:17,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:17,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:17,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:17,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:17,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:17,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:17,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:17,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:17,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:17,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2020-09-24 19:13:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:17,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:17,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:17,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:17,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:17,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:17,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:17,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:17,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:17,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:17,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:17,452 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 19:13:17,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389620794] [2020-09-24 19:13:17,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:13:17,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 19:13:17,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997001123] [2020-09-24 19:13:17,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:13:17,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:13:17,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:13:17,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:13:17,456 INFO L87 Difference]: Start difference. First operand 637 states and 732 transitions. Second operand 11 states. [2020-09-24 19:13:18,686 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:18,995 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:13:19,316 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:13:19,631 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:19,954 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:13:20,254 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187