/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=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_spec2_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:58:30,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:58:30,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:58:30,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:58:30,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:58:30,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:58:30,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:58:30,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:58:30,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:58:30,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:58:30,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:58:30,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:58:30,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:58:30,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:58:30,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:58:30,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:58:30,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:58:30,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:58:30,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:58:30,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:58:30,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:58:30,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:58:30,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:58:30,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:58:30,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:58:30,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:58:30,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:58:30,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:58:30,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:58:30,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:58:30,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:58:30,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:58:30,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:58:30,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:58:30,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:58:30,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:58:30,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:58:30,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:58:30,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:58:30,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:58:30,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:58:30,857 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 17:58:30,884 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:58:30,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:58:30,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:58:30,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:58:30,886 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:58:30,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:58:30,886 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:58:30,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:58:30,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:58:30,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:58:30,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:58:30,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:58:30,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:58:30,888 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:58:30,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:58:30,888 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:58:30,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:58:30,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:58:30,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:58:30,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:58:30,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:58:30,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:58:30,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:58:30,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:58:30,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:58:30,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:58:30,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:58:30,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:58:30,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:58:30,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=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=5000;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=5000;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=5000;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=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 17:58:31,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:58:31,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:58:31,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:58:31,367 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:58:31,368 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:58:31,369 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c [2020-09-24 17:58:31,441 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d00064e56/0b6e23b7e1c44dcb9bcc974b61b24804/FLAG88521877b [2020-09-24 17:58:32,065 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:58:32,066 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c [2020-09-24 17:58:32,082 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d00064e56/0b6e23b7e1c44dcb9bcc974b61b24804/FLAG88521877b [2020-09-24 17:58:32,349 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d00064e56/0b6e23b7e1c44dcb9bcc974b61b24804 [2020-09-24 17:58:32,361 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:58:32,367 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:58:32,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:58:32,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:58:32,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:58:32,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:58:32" (1/1) ... [2020-09-24 17:58:32,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@437c5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:32, skipping insertion in model container [2020-09-24 17:58:32,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:58:32" (1/1) ... [2020-09-24 17:58:32,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:58:32,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:58:32,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:58:32,985 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:58:33,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:58:33,103 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:58:33,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:33 WrapperNode [2020-09-24 17:58:33,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:58:33,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:58:33,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:58:33,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:58:33,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:33" (1/1) ... [2020-09-24 17:58:33,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:33" (1/1) ... [2020-09-24 17:58:33,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:33" (1/1) ... [2020-09-24 17:58:33,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:33" (1/1) ... [2020-09-24 17:58:33,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:33" (1/1) ... [2020-09-24 17:58:33,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:33" (1/1) ... [2020-09-24 17:58:33,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:33" (1/1) ... [2020-09-24 17:58:33,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:58:33,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:58:33,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:58:33,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:58:33,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:33" (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 17:58:33,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:58:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:58:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 17:58:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 17:58:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 17:58:33,288 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 17:58:33,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 17:58:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 17:58:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 17:58:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 17:58:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 17:58:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 17:58:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 17:58:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 17:58:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 17:58:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 17:58:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 17:58:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 17:58:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 17:58:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 17:58:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 17:58:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 17:58:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 17:58:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 17:58:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:58:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 17:58:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 17:58:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 17:58:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 17:58:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 17:58:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 17:58:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 17:58:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 17:58:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 17:58:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 17:58:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 17:58:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 17:58:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 17:58:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 17:58:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 17:58:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:58:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:58:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 17:58:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 17:58:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 17:58:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 17:58:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 17:58:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 17:58:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 17:58:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 17:58:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:58:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 17:58:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:58:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:58:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 17:58:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:58:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:58:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:58:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:58:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 17:58:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:58:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 17:58:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 17:58:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:58:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 17:58:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 17:58:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 17:58:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 17:58:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 17:58:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 17:58:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 17:58:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 17:58:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 17:58:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 17:58:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 17:58:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 17:58:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 17:58:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 17:58:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 17:58:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:58:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 17:58:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 17:58:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 17:58:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 17:58:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 17:58:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 17:58:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 17:58:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 17:58:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 17:58:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 17:58:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 17:58:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:58:33,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:58:33,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:58:34,457 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:58:34,457 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:58:34,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:58:34 BoogieIcfgContainer [2020-09-24 17:58:34,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:58:34,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:58:34,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:58:34,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:58:34,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:58:32" (1/3) ... [2020-09-24 17:58:34,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c896894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:58:34, skipping insertion in model container [2020-09-24 17:58:34,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:33" (2/3) ... [2020-09-24 17:58:34,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c896894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:58:34, skipping insertion in model container [2020-09-24 17:58:34,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:58:34" (3/3) ... [2020-09-24 17:58:34,474 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product36.cil.c [2020-09-24 17:58:34,485 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:58:34,496 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:58:34,519 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:58:34,553 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:58:34,554 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:58:34,554 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:58:34,554 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:58:34,554 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:58:34,554 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:58:34,555 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:58:34,555 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:58:34,585 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-24 17:58:34,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 17:58:34,604 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:58:34,606 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] [2020-09-24 17:58:34,606 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:58:34,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:58:34,615 INFO L82 PathProgramCache]: Analyzing trace with hash 581335990, now seen corresponding path program 1 times [2020-09-24 17:58:34,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:58:34,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262213628] [2020-09-24 17:58:34,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:58:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:35,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:35,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:36,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:37,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:38,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:40,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:40,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 17:58:40,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:58:40,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-09-24 17:58:40,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:40,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:40,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 17:58:40,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:40,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 17:58:40,493 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:58:40,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:58:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:40,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:40,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:40,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:58:40,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:40,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 17:58:40,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:40,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:40,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:40,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:40,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:40,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:58:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:40,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:40,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:40,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:40,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:40,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:40,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:40,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:40,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:40,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:40,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:40,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:58:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:40,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:40,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:40,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:40,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:40,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:58:40,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:40,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:40,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:40,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:40,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:40,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:58:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:40,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:40,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:40,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:40,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:40,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:58:40,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:40,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:40,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:40,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:40,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:40,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:58:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:40,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:40,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:40,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:40,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:40,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:40,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:40,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:40,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:40,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:40,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:40,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:58:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:40,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:40,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:40,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:58:40,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:40,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:58:40,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:40,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:40,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:40,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:40,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:40,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 17:58:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:40,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:40,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:40,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:40,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:40,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:58:40,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:40,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:40,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:40,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:40,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:40,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 17:58:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:40,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:40,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:40,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:40,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:40,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:58:40,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:40,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:40,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:40,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:40,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:40,899 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 17:58:40,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262213628] [2020-09-24 17:58:40,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:58:40,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:58:40,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901452975] [2020-09-24 17:58:40,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:58:40,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:58:40,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:58:40,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:58:40,944 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 4 states. [2020-09-24 17:58:42,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:58:42,291 INFO L93 Difference]: Finished difference Result 463 states and 549 transitions. [2020-09-24 17:58:42,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 17:58:42,293 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 17:58:42,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:58:42,325 INFO L225 Difference]: With dead ends: 463 [2020-09-24 17:58:42,328 INFO L226 Difference]: Without dead ends: 299 [2020-09-24 17:58:42,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:58:42,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-09-24 17:58:42,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 249. [2020-09-24 17:58:42,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-24 17:58:42,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions. [2020-09-24 17:58:42,490 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 148 [2020-09-24 17:58:42,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:58:42,491 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions. [2020-09-24 17:58:42,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:58:42,492 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2020-09-24 17:58:42,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 17:58:42,496 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:58:42,497 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] [2020-09-24 17:58:42,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:58:42,497 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:58:42,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:58:42,498 INFO L82 PathProgramCache]: Analyzing trace with hash 170641553, now seen corresponding path program 1 times [2020-09-24 17:58:42,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:58:42,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839558527] [2020-09-24 17:58:42,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:58:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:42,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:42,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:44,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:45,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:45,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:46,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:47,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:47,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 17:58:47,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:58:47,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 17:58:47,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:47,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:58:47,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 17:58:47,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:58:47,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:47,867 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:58:47,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:58:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:47,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:47,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:47,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:58:47,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:47,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 17:58:47,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:47,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:47,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:47,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:47,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:48,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:58:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:48,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:48,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:48,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:48,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:48,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:58:48,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:48,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:48,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:48,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:48,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:48,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:58:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:48,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:48,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:48,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:48,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:48,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:48,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:48,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:48,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:48,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:48,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:48,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:58:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:48,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:48,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:48,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:48,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:48,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:58:48,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:48,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:48,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:48,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:48,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:48,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:58:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:48,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:48,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:48,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:48,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:48,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:48,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:48,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:48,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:48,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:48,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:48,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:58:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:48,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:48,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:48,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:58:48,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:48,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:48,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:48,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:48,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:48,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:48,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:48,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 17:58:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:48,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:48,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:48,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:48,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:48,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:48,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:48,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:48,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:48,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:48,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:48,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 17:58:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:48,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:48,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:48,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:48,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:48,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:48,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:48,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:48,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:48,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:48,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:48,114 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 17:58:48,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839558527] [2020-09-24 17:58:48,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:58:48,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:58:48,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810788648] [2020-09-24 17:58:48,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:58:48,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:58:48,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:58:48,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:58:48,122 INFO L87 Difference]: Start difference. First operand 249 states and 269 transitions. Second operand 5 states. [2020-09-24 17:58:48,761 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:58:49,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:58:49,786 INFO L93 Difference]: Finished difference Result 379 states and 430 transitions. [2020-09-24 17:58:49,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:58:49,787 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 17:58:49,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:58:49,791 INFO L225 Difference]: With dead ends: 379 [2020-09-24 17:58:49,791 INFO L226 Difference]: Without dead ends: 288 [2020-09-24 17:58:49,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:58:49,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-09-24 17:58:49,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 239. [2020-09-24 17:58:49,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-24 17:58:49,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 256 transitions. [2020-09-24 17:58:49,835 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 256 transitions. Word has length 149 [2020-09-24 17:58:49,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:58:49,835 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 256 transitions. [2020-09-24 17:58:49,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:58:49,836 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 256 transitions. [2020-09-24 17:58:49,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 17:58:49,838 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:58:49,838 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] [2020-09-24 17:58:49,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:58:49,839 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:58:49,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:58:49,839 INFO L82 PathProgramCache]: Analyzing trace with hash -896171093, now seen corresponding path program 1 times [2020-09-24 17:58:49,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:58:49,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [163825187] [2020-09-24 17:58:49,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:58:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:50,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:50,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:51,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:52,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:54,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:54,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 17:58:54,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:58:54,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 17:58:54,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:54,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:58:54,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 17:58:54,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:58:54,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:55,283 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:58:55,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:58:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:55,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:55,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:55,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:58:55,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:55,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 17:58:55,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:55,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:55,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:55,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:55,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:55,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:58:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:55,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:55,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:55,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:55,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:55,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:55,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:55,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:55,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:55,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:55,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:55,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:58:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:55,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:55,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:55,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:55,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:55,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:55,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:55,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:55,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:55,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:55,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:55,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:58:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:55,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:55,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:55,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:55,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:55,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:58:55,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:55,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:55,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:55,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:55,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:55,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:58:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:55,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:55,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:55,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:55,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:55,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:58:55,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:55,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:55,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:58:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:55,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:55,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:55,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:58:55,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:55,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:55,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:55,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:55,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:55,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:55,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:55,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 17:58:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:55,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:55,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:55,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:58:55,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:55,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:58:55,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:55,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:58:55,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:55,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 17:58:55,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:58:55,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 17:58:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:55,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:55,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:55,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:55,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:55,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:58:55,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:55,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:55,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:55,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:55,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:55,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 17:58:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:55,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:55,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:55,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:55,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:55,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:55,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:55,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:55,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:55,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:55,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:55,597 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 17:58:55,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [163825187] [2020-09-24 17:58:55,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:58:55,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:58:55,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384460284] [2020-09-24 17:58:55,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:58:55,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:58:55,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:58:55,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:58:55,605 INFO L87 Difference]: Start difference. First operand 239 states and 256 transitions. Second operand 6 states. [2020-09-24 17:58:56,186 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:58:57,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:58:57,907 INFO L93 Difference]: Finished difference Result 567 states and 662 transitions. [2020-09-24 17:58:57,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 17:58:57,908 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-24 17:58:57,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:58:57,912 INFO L225 Difference]: With dead ends: 567 [2020-09-24 17:58:57,913 INFO L226 Difference]: Without dead ends: 443 [2020-09-24 17:58:57,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 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 17:58:57,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-09-24 17:58:58,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 347. [2020-09-24 17:58:58,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-09-24 17:58:58,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 380 transitions. [2020-09-24 17:58:58,014 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 380 transitions. Word has length 162 [2020-09-24 17:58:58,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:58:58,015 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 380 transitions. [2020-09-24 17:58:58,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:58:58,015 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 380 transitions. [2020-09-24 17:58:58,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 17:58:58,022 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:58:58,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:58:58,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:58:58,023 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:58:58,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:58:58,023 INFO L82 PathProgramCache]: Analyzing trace with hash 600016420, now seen corresponding path program 1 times [2020-09-24 17:58:58,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:58:58,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332481395] [2020-09-24 17:58:58,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:58:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:58,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:58,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:59,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:59,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:01,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:03,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:03,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 17:59:03,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:59:03,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-24 17:59:03,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:59:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 17:59:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 17:59:03,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:03,454 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:03,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:03,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:03,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:03,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:03,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:03,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 17:59:03,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:03,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:03,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:03,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:03,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:03,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:03,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:03,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:03,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:03,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:03,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:03,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:03,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:03,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:03,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:03,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:03,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:03,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:03,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:03,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:03,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:03,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:03,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:03,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:03,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:03,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:03,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:03,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:03,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:03,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:03,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:03,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:03,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:03,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:03,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:03,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:03,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:03,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:03,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:03,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:03,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:03,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:03,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:03,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:03,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:03,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:03,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:03,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:03,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:03,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:03,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:03,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:03,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:03,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:03,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:03,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:03,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:03,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 17:59:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:03,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:03,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:03,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:59:03,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:03,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:03,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:03,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:03,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:03,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:03,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:03,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 17:59:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:03,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:03,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:03,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:03,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:03,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:03,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:03,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:03,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:03,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:59:03,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:03,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 17:59:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:03,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:03,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:03,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:03,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:03,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:59:03,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:03,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:59:03,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:03,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:59:03,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:03,818 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 17:59:03,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332481395] [2020-09-24 17:59:03,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:03,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 17:59:03,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866564262] [2020-09-24 17:59:03,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 17:59:03,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:03,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 17:59:03,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:59:03,823 INFO L87 Difference]: Start difference. First operand 347 states and 380 transitions. Second operand 10 states. [2020-09-24 17:59:04,442 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:05,692 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:06,016 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 17:59:06,366 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:06,694 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 17:59:06,993 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:07,592 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:07,890 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:08,254 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:59:09,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:59:09,092 INFO L93 Difference]: Finished difference Result 824 states and 991 transitions. [2020-09-24 17:59:09,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 17:59:09,093 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-24 17:59:09,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:59:09,099 INFO L225 Difference]: With dead ends: 824 [2020-09-24 17:59:09,100 INFO L226 Difference]: Without dead ends: 592 [2020-09-24 17:59:09,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 17:59:09,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2020-09-24 17:59:09,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 499. [2020-09-24 17:59:09,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-09-24 17:59:09,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 556 transitions. [2020-09-24 17:59:09,202 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 556 transitions. Word has length 167 [2020-09-24 17:59:09,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:59:09,203 INFO L479 AbstractCegarLoop]: Abstraction has 499 states and 556 transitions. [2020-09-24 17:59:09,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 17:59:09,203 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 556 transitions. [2020-09-24 17:59:09,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 17:59:09,206 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:09,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:59:09,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:59:09,207 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:09,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:09,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1824706791, now seen corresponding path program 1 times [2020-09-24 17:59:09,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:09,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383743938] [2020-09-24 17:59:09,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:09,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:09,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:10,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:14,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:14,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 17:59:14,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:59:14,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-24 17:59:14,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:59:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-24 17:59:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:59:14,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:14,589 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:14,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:14,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:14,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:14,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:14,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:14,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 17:59:14,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:14,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:14,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:14,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:14,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:14,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:14,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:14,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:14,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:14,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:14,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:14,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:14,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:14,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:14,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:14,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:14,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:14,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:14,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:14,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:14,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:14,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:14,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:14,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:14,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:14,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:14,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:14,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:14,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:14,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:14,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:14,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:14,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:14,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:14,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:14,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:14,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:14,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:14,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:14,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:14,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:14,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:14,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:14,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:14,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:14,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:14,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:14,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:14,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:14,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:14,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:14,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:14,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:14,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:14,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:14,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 17:59:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:14,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:14,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:14,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:14,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:14,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:14,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:14,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:14,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:14,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:14,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:59:14,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 17:59:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:14,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:14,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:14,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 17:59:14,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:14,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 17:59:14,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:14,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:59:14,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 17:59:14,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:59:14,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:14,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:59:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:14,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:14,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:14,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 17:59:14,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:14,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 17:59:14,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:59:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 17:59:14,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:14,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:59:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:14,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:14,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:14,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 17:59:14,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:14,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:14,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:14,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:14,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:14,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:14,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:14,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 17:59:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:14,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:14,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:14,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:14,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:14,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:14,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:14,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:14,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 17:59:14,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:14,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:14,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 17:59:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:14,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:14,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:14,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:14,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:14,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:14,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:14,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:14,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:14,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:14,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:14,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 17:59:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:14,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:14,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:14,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:14,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:14,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:14,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:14,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:15,029 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 17:59:15,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383743938] [2020-09-24 17:59:15,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:15,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 17:59:15,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591853023] [2020-09-24 17:59:15,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 17:59:15,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:15,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 17:59:15,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 17:59:15,033 INFO L87 Difference]: Start difference. First operand 499 states and 556 transitions. Second operand 11 states. [2020-09-24 17:59:16,563 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:59:16,860 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 17:59:17,179 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 17:59:17,516 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:59:17,862 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 17:59:18,147 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:59:18,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:59:18,943 INFO L93 Difference]: Finished difference Result 1076 states and 1300 transitions. [2020-09-24 17:59:18,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 17:59:18,944 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 195 [2020-09-24 17:59:18,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:59:18,948 INFO L225 Difference]: With dead ends: 1076 [2020-09-24 17:59:18,949 INFO L226 Difference]: Without dead ends: 692 [2020-09-24 17:59:18,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 17:59:18,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2020-09-24 17:59:19,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 518. [2020-09-24 17:59:19,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-09-24 17:59:19,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 575 transitions. [2020-09-24 17:59:19,025 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 575 transitions. Word has length 195 [2020-09-24 17:59:19,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:59:19,026 INFO L479 AbstractCegarLoop]: Abstraction has 518 states and 575 transitions. [2020-09-24 17:59:19,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 17:59:19,026 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 575 transitions. [2020-09-24 17:59:19,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 17:59:19,029 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:19,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:59:19,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 17:59:19,030 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:19,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:19,030 INFO L82 PathProgramCache]: Analyzing trace with hash 684912967, now seen corresponding path program 1 times [2020-09-24 17:59:19,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:19,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334932096] [2020-09-24 17:59:19,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:19,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:19,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:19,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking...