/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:59:32,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:59:32,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:59:32,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:59:32,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:59:32,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:59:32,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:59:33,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:59:33,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:59:33,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:59:33,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:59:33,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:59:33,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:59:33,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:59:33,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:59:33,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:59:33,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:59:33,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:59:33,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:59:33,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:59:33,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:59:33,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:59:33,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:59:33,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:59:33,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:59:33,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:59:33,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:59:33,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:59:33,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:59:33,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:59:33,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:59:33,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:59:33,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:59:33,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:59:33,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:59:33,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:59:33,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:59:33,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:59:33,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:59:33,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:59:33,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:59:33,057 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 10:59:33,109 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:59:33,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:59:33,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:59:33,111 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:59:33,112 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:59:33,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:59:33,112 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:59:33,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:59:33,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:59:33,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:59:33,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:59:33,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:59:33,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:59:33,115 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:59:33,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:59:33,116 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:59:33,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:59:33,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:59:33,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:59:33,117 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:59:33,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:59:33,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:59:33,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:59:33,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:59:33,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:59:33,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:59:33,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:59:33,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:59:33,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:59:33,119 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:59:33,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:59:33,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:59:33,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:59:33,589 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:59:33,590 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:59:33,591 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-09-25 10:59:33,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e248ed687/1ac3cc5279cf4981b368c4ca85410d42/FLAG5e0149765 [2020-09-25 10:59:34,314 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:59:34,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-09-25 10:59:34,331 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e248ed687/1ac3cc5279cf4981b368c4ca85410d42/FLAG5e0149765 [2020-09-25 10:59:34,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e248ed687/1ac3cc5279cf4981b368c4ca85410d42 [2020-09-25 10:59:34,546 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:59:34,552 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:59:34,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:59:34,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:59:34,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:59:34,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:59:34" (1/1) ... [2020-09-25 10:59:34,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc704b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:34, skipping insertion in model container [2020-09-25 10:59:34,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:59:34" (1/1) ... [2020-09-25 10:59:34,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:59:34,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:59:35,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:59:35,140 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:59:35,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:59:35,280 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:59:35,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:35 WrapperNode [2020-09-25 10:59:35,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:59:35,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:59:35,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:59:35,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:59:35,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:35" (1/1) ... [2020-09-25 10:59:35,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:35" (1/1) ... [2020-09-25 10:59:35,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:35" (1/1) ... [2020-09-25 10:59:35,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:35" (1/1) ... [2020-09-25 10:59:35,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:35" (1/1) ... [2020-09-25 10:59:35,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:35" (1/1) ... [2020-09-25 10:59:35,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:35" (1/1) ... [2020-09-25 10:59:35,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:59:35,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:59:35,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:59:35,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:59:35,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:59:35,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:59:35,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:59:35,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:59:35,487 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:59:35,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 10:59:35,487 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:59:35,487 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:59:35,488 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:59:35,489 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:59:35,489 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:59:35,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:59:35,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:59:35,489 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:59:35,490 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 10:59:35,490 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 10:59:35,491 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:59:35,491 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:59:35,491 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:59:35,491 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:59:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:59:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:59:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:59:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:59:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:59:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:59:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:59:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:59:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:59:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:59:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:59:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:59:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:59:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:59:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:59:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:59:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:59:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:59:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 10:59:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:59:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:59:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:59:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:59:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:59:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 10:59:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:59:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:59:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:59:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:59:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:59:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:59:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 10:59:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:59:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:59:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:59:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 10:59:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:59:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:59:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:59:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:59:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:59:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 10:59:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:59:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:59:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:59:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:59:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:59:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:59:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:59:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:59:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:59:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:59:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:59:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:59:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:59:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:59:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:59:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:59:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:59:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:59:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:59:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:59:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:59:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:59:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:59:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:59:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:59:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:59:35,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:59:35,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:59:35,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:59:36,678 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:59:36,678 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:59:36,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:59:36 BoogieIcfgContainer [2020-09-25 10:59:36,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:59:36,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:59:36,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:59:36,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:59:36,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:59:34" (1/3) ... [2020-09-25 10:59:36,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e31b0d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:59:36, skipping insertion in model container [2020-09-25 10:59:36,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:35" (2/3) ... [2020-09-25 10:59:36,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e31b0d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:59:36, skipping insertion in model container [2020-09-25 10:59:36,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:59:36" (3/3) ... [2020-09-25 10:59:36,696 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2020-09-25 10:59:36,709 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:59:36,721 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:59:36,745 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:59:36,787 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:59:36,787 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:59:36,787 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:59:36,788 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:59:36,788 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:59:36,788 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:59:36,788 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:59:36,788 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:59:36,823 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2020-09-25 10:59:36,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 10:59:36,844 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:36,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:59:36,846 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:36,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:36,856 INFO L82 PathProgramCache]: Analyzing trace with hash 808133404, now seen corresponding path program 1 times [2020-09-25 10:59:36,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:36,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275625844] [2020-09-25 10:59:36,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:37,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:37,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:39,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:40,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:42,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:42,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 10:59:42,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:59:42,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5086 [2020-09-25 10:59:42,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:42,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:42,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:59:42,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 10:59:42,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 10:59:42,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 10:59:42,814 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:42,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:59:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:42,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:43,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:43,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:59:43,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:43,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-09-25 10:59:43,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:43,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:43,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:43,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:43,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 10:59:43,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:43,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:59:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:43,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:43,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:43,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:43,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:43,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:59:43,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:43,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:43,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:43,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:43,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:43,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:43,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:59:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:43,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:43,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:43,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:43,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:43,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:43,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:43,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:43,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:43,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:43,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:43,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:43,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:59:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:43,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:43,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:43,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:43,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:43,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:59:43,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:43,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:43,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:43,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:43,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:43,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:43,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:59:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:43,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:43,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:43,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:43,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:43,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:59:43,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:43,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:43,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:43,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:43,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:43,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:43,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:59:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:43,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:43,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:43,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:43,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:43,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:59:43,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:43,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:43,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:43,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:43,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:43,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:43,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 10:59:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:43,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:43,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:43,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:43,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:43,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:43,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:43,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:43,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:43,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:43,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:43,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:43,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:59:43,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275625844] [2020-09-25 10:59:43,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:59:43,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 10:59:43,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114346018] [2020-09-25 10:59:43,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 10:59:43,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:59:43,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 10:59:43,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 10:59:43,478 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 4 states. [2020-09-25 10:59:44,179 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:46,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:59:46,197 INFO L93 Difference]: Finished difference Result 595 states and 724 transitions. [2020-09-25 10:59:46,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:59:46,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 10:59:46,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:59:46,232 INFO L225 Difference]: With dead ends: 595 [2020-09-25 10:59:46,232 INFO L226 Difference]: Without dead ends: 419 [2020-09-25 10:59:46,241 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:59:46,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-09-25 10:59:46,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 350. [2020-09-25 10:59:46,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-09-25 10:59:46,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 387 transitions. [2020-09-25 10:59:46,419 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 387 transitions. Word has length 142 [2020-09-25 10:59:46,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:59:46,424 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 387 transitions. [2020-09-25 10:59:46,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 10:59:46,425 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 387 transitions. [2020-09-25 10:59:46,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 10:59:46,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:46,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:59:46,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:59:46,438 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:46,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:46,439 INFO L82 PathProgramCache]: Analyzing trace with hash -528230044, now seen corresponding path program 1 times [2020-09-25 10:59:46,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:46,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760117683] [2020-09-25 10:59:46,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:46,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:46,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:46,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:51,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:51,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:51,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:51,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 10:59:51,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:59:51,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-09-25 10:59:51,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:51,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:59:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 10:59:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 10:59:51,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:51,855 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:51,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:59:51,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:51,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:52,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:52,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:59:52,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:52,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 10:59:52,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:52,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:52,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:52,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:52,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:59:52,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:52,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:59:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:52,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:52,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:52,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:52,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:52,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:52,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:52,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:52,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:52,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:52,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:52,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:52,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:59:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:52,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:52,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:52,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:52,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:52,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:52,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:52,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:52,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:52,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:59:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:52,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:52,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:52,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:52,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:52,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:59:52,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:52,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:52,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:52,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:52,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:52,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:52,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:59:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:52,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:52,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:52,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:52,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:52,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:52,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:52,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:52,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:52,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:52,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:52,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:52,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 10:59:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:52,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:52,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:52,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:59:52,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:52,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:59:52,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:52,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:52,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:52,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 10:59:52,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:52,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:59:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:52,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:52,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:52,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:52,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:52,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:59:52,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:52,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:52,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:52,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:52,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:52,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:52,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 10:59:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:52,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:52,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:52,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:52,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:52,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:59:52,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:52,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:52,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:59:52,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:52,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:52,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:52,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 10:59:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:52,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:52,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:52,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:52,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:52,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:59:52,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:52,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:52,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:52,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:59:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:59:52,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760117683] [2020-09-25 10:59:52,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:59:52,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 10:59:52,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381830355] [2020-09-25 10:59:52,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 10:59:52,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:59:52,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 10:59:52,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:59:52,394 INFO L87 Difference]: Start difference. First operand 350 states and 387 transitions. Second operand 9 states. [2020-09-25 10:59:52,912 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:54,254 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:54,614 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:55,039 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:55,440 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:55,741 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:56,135 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:56,454 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:57,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:59:57,866 INFO L93 Difference]: Finished difference Result 988 states and 1246 transitions. [2020-09-25 10:59:57,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 10:59:57,868 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 10:59:57,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:59:57,879 INFO L225 Difference]: With dead ends: 988 [2020-09-25 10:59:57,880 INFO L226 Difference]: Without dead ends: 748 [2020-09-25 10:59:57,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 10:59:57,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-09-25 10:59:58,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 573. [2020-09-25 10:59:58,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-09-25 10:59:58,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 659 transitions. [2020-09-25 10:59:58,014 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 659 transitions. Word has length 151 [2020-09-25 10:59:58,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:59:58,015 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 659 transitions. [2020-09-25 10:59:58,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 10:59:58,016 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 659 transitions. [2020-09-25 10:59:58,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 10:59:58,019 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:58,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:59:58,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:59:58,020 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:58,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:58,020 INFO L82 PathProgramCache]: Analyzing trace with hash 500104202, now seen corresponding path program 1 times [2020-09-25 10:59:58,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:58,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704126951] [2020-09-25 10:59:58,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:58,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:58,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:59,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:00,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:03,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:03,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 11:00:03,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:00:03,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 11:00:03,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:03,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:03,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 11:00:03,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 11:00:03,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-25 11:00:03,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:03,471 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:00:03,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:00:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:03,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:03,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:03,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:00:03,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:03,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-25 11:00:03,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:03,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:03,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:03,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:03,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 11:00:03,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:03,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:00:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:03,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:03,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:03,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:03,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:03,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:03,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:03,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:03,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:03,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:03,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:03,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:03,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:00:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:03,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:03,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:03,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:03,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:03,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:03,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:03,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:03,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:03,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:03,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:03,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:03,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:00:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:03,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:03,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:03,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:03,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:03,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:00:03,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:03,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:03,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:03,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:03,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:03,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:00:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:03,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:03,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:03,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:03,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:03,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:03,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:03,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:03,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:03,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:03,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:03,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 11:00:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:03,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:03,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:03,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:00:03,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:03,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:00:03,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:03,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:03,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:03,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:03,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:00:03,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:03,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 11:00:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:03,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:03,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:03,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:03,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:00:03,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:00:03,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:00:03,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:03,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:03,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:00:03,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:00:03,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:00:03,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:03,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:03,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:03,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:03,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:03,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:03,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:03,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:03,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:03,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:03,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:03,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:03,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:03,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 11:00:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:03,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:03,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:03,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:03,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:03,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:03,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:03,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:03,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:03,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:03,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:03,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:03,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 11:00:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:03,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:03,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:03,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:03,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:03,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:00:03,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:03,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:03,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:00:03,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:03,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:03,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:04,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:00:04,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704126951] [2020-09-25 11:00:04,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:00:04,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 11:00:04,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971301728] [2020-09-25 11:00:04,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 11:00:04,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:00:04,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 11:00:04,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-25 11:00:04,184 INFO L87 Difference]: Start difference. First operand 573 states and 659 transitions. Second operand 11 states. [2020-09-25 11:00:04,707 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:00:06,793 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 11:00:07,493 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 193 [2020-09-25 11:00:07,783 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:00:08,174 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:08,481 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:00:09,276 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 187 [2020-09-25 11:00:09,687 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 11:00:10,035 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 11:00:10,452 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:11,535 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 196 [2020-09-25 11:00:12,295 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 189 [2020-09-25 11:00:13,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:00:13,857 INFO L93 Difference]: Finished difference Result 1692 states and 2217 transitions. [2020-09-25 11:00:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-25 11:00:13,858 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 165 [2020-09-25 11:00:13,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:00:13,867 INFO L225 Difference]: With dead ends: 1692 [2020-09-25 11:00:13,867 INFO L226 Difference]: Without dead ends: 1229 [2020-09-25 11:00:13,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=213, Invalid=779, Unknown=0, NotChecked=0, Total=992 [2020-09-25 11:00:13,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2020-09-25 11:00:14,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 919. [2020-09-25 11:00:14,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-09-25 11:00:14,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1072 transitions. [2020-09-25 11:00:14,017 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1072 transitions. Word has length 165 [2020-09-25 11:00:14,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:00:14,018 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1072 transitions. [2020-09-25 11:00:14,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 11:00:14,018 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1072 transitions. [2020-09-25 11:00:14,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 11:00:14,022 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:00:14,022 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:00:14,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:00:14,023 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:00:14,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:00:14,023 INFO L82 PathProgramCache]: Analyzing trace with hash -391845853, now seen corresponding path program 1 times [2020-09-25 11:00:14,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:00:14,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683139073] [2020-09-25 11:00:14,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:00:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:14,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:14,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:19,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:19,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 11:00:19,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:00:19,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 11:00:19,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:19,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:19,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 11:00:19,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 11:00:19,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 11:00:19,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:19,468 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:00:19,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:00:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:19,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:19,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:19,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:00:19,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:19,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 11:00:19,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:19,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:19,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:19,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:19,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 11:00:19,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:19,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:00:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:19,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:19,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:19,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:19,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:19,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:19,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:19,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:19,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:19,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:19,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:19,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:19,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:00:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:19,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:19,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:19,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:19,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:19,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:19,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:19,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:19,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:19,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:19,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:19,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:19,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:00:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:19,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:19,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:19,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:19,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:19,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:00:19,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:19,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:19,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:19,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:19,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:19,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:19,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:00:19,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:19,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:19,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:19,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:19,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:19,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:19,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:19,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:19,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:19,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:19,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:19,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:19,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 11:00:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:19,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:19,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:19,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:00:19,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:19,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:00:19,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:19,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:19,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:00:19,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:00:19,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:00:19,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:19,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 11:00:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:19,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:19,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:20,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:20,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 11:00:20,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:00:20,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 11:00:20,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:20,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:20,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:20,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 11:00:20,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 11:00:20,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:20,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:20,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:20,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:20,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:00:20,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:20,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 11:00:20,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:20,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:00:20,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:20,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:00:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:20,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:20,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:20,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:00:20,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:20,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:00:20,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:20,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:20,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:20,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:20,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 11:00:20,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:20,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 11:00:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:20,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:20,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:20,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:00:20,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:20,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:20,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:20,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:20,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:20,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:20,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:00:20,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:20,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 11:00:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:20,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:20,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:20,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:20,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:20,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:20,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:20,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:20,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:20,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:20,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:20,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:20,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 11:00:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:20,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:20,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:20,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:20,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:20,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:20,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:20,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:20,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:20,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:20,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:20,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:20,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:00:20,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683139073] [2020-09-25 11:00:20,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:00:20,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 11:00:20,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067575643] [2020-09-25 11:00:20,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:00:20,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:00:20,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:00:20,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:00:20,189 INFO L87 Difference]: Start difference. First operand 919 states and 1072 transitions. Second operand 10 states. [2020-09-25 11:00:20,721 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:00:21,478 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186