/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=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:13:30,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:13:30,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:13:30,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:13:30,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:13:30,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:13:30,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:13:30,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:13:30,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:13:30,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:13:30,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:13:30,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:13:30,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:13:30,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:13:30,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:13:30,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:13:30,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:13:30,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:13:30,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:13:30,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:13:30,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:13:30,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:13:30,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:13:30,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:13:30,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:13:30,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:13:30,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:13:30,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:13:30,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:13:30,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:13:30,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:13:30,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:13:30,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:13:30,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:13:30,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:13:30,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:13:30,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:13:30,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:13:30,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:13:30,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:13:30,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:13:30,286 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 14:13:30,338 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:13:30,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:13:30,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:13:30,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:13:30,340 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:13:30,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:13:30,340 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:13:30,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:13:30,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:13:30,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:13:30,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:13:30,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:13:30,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:13:30,342 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:13:30,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:13:30,342 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:13:30,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:13:30,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:13:30,343 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:13:30,343 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:13:30,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:13:30,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:13:30,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:13:30,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:13:30,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:13:30,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:13:30,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:13:30,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:13:30,345 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:13:30,345 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true; [2020-09-25 14:13:30,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:13:30,812 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:13:30,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:13:30,819 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:13:30,819 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:13:30,820 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2020-09-25 14:13:30,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/628b92c48/f51e646c922841b9b658dda46fae72b1/FLAG22ba0907e [2020-09-25 14:13:31,524 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:13:31,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2020-09-25 14:13:31,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/628b92c48/f51e646c922841b9b658dda46fae72b1/FLAG22ba0907e [2020-09-25 14:13:31,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/628b92c48/f51e646c922841b9b658dda46fae72b1 [2020-09-25 14:13:31,809 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:13:31,816 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:13:31,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:13:31,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:13:31,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:13:31,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:13:31" (1/1) ... [2020-09-25 14:13:31,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@366b14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:31, skipping insertion in model container [2020-09-25 14:13:31,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:13:31" (1/1) ... [2020-09-25 14:13:31,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:13:31,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:13:32,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:13:32,375 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:13:32,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:13:32,506 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:13:32,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32 WrapperNode [2020-09-25 14:13:32,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:13:32,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:13:32,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:13:32,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:13:32,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (1/1) ... [2020-09-25 14:13:32,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (1/1) ... [2020-09-25 14:13:32,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (1/1) ... [2020-09-25 14:13:32,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (1/1) ... [2020-09-25 14:13:32,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (1/1) ... [2020-09-25 14:13:32,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (1/1) ... [2020-09-25 14:13:32,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (1/1) ... [2020-09-25 14:13:32,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:13:32,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:13:32,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:13:32,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:13:32,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (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 14:13:32,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:13:32,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:13:32,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:13:32,690 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:13:32,690 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:13:32,690 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:13:32,691 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:13:32,691 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:13:32,691 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:13:32,691 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:13:32,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:13:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:13:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:13:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:13:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:13:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:13:32,693 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:13:32,693 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:13:32,693 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:13:32,693 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:13:32,694 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:13:32,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:13:32,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:13:32,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:13:32,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:13:32,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:13:32,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:13:32,695 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:13:32,695 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:13:32,695 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:13:32,695 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 14:13:32,695 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:13:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 14:13:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:13:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:13:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:13:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:13:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:13:32,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:13:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:13:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:13:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:13:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:13:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:13:32,698 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:13:32,698 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:13:32,698 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:13:32,698 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:13:32,698 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:13:32,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:13:32,699 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:13:32,699 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:13:32,699 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:13:32,699 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:13:32,699 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:13:32,700 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:13:32,700 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:13:32,700 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:13:32,700 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:13:32,700 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:13:32,700 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:13:32,700 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:13:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:13:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:13:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:13:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:13:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:13:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:13:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:13:32,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:13:32,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:13:32,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:13:32,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:13:32,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:13:32,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:13:32,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:13:32,703 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:13:32,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:13:32,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:13:32,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:13:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:13:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:13:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:13:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:13:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:13:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:13:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 14:13:32,705 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:13:32,705 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 14:13:32,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:13:32,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:13:32,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:13:33,909 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:13:33,909 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:13:33,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:13:33 BoogieIcfgContainer [2020-09-25 14:13:33,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:13:33,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:13:33,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:13:33,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:13:33,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:13:31" (1/3) ... [2020-09-25 14:13:33,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfb2699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:13:33, skipping insertion in model container [2020-09-25 14:13:33,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (2/3) ... [2020-09-25 14:13:33,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfb2699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:13:33, skipping insertion in model container [2020-09-25 14:13:33,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:13:33" (3/3) ... [2020-09-25 14:13:33,926 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product45.cil.c [2020-09-25 14:13:33,938 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:13:33,950 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:13:33,975 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:13:34,011 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:13:34,012 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:13:34,012 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:13:34,012 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:13:34,012 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:13:34,012 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:13:34,012 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:13:34,013 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:13:34,042 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-25 14:13:34,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:13:34,059 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:34,061 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 14:13:34,061 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:34,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:34,069 INFO L82 PathProgramCache]: Analyzing trace with hash 2110022022, now seen corresponding path program 1 times [2020-09-25 14:13:34,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:34,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990262731] [2020-09-25 14:13:34,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:34,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:34,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:35,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:36,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:36,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:39,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:39,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:13:39,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:13:39,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-09-25 14:13:39,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:39,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:39,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:39,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 14:13:39,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:13:39,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 14:13:39,983 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:13:39,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:13:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:13:40,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-25 14:13:40,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:40,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:40,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:13:40,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:13:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:40,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 14:13:40,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:40,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:40,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:40,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:13:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:40,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:13:40,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:40,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:40,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:13:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:40,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:13:40,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:40,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:40,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:40,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:13:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:40,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:13:40,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:40,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:40,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:40,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:13:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:40,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:40,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:40,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:13:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:40,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:40,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:40,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:40,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:40,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,561 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 14:13:40,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990262731] [2020-09-25 14:13:40,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:13:40,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:13:40,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125347609] [2020-09-25 14:13:40,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:13:40,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:13:40,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:13:40,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:13:40,595 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 4 states. [2020-09-25 14:13:41,124 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:13:42,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:13:42,250 INFO L93 Difference]: Finished difference Result 487 states and 582 transitions. [2020-09-25 14:13:42,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:13:42,257 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 14:13:42,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:13:42,287 INFO L225 Difference]: With dead ends: 487 [2020-09-25 14:13:42,288 INFO L226 Difference]: Without dead ends: 302 [2020-09-25 14:13:42,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:13:42,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-09-25 14:13:42,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 259. [2020-09-25 14:13:42,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-25 14:13:42,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 282 transitions. [2020-09-25 14:13:42,406 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 282 transitions. Word has length 142 [2020-09-25 14:13:42,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:13:42,407 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 282 transitions. [2020-09-25 14:13:42,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:13:42,407 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 282 transitions. [2020-09-25 14:13:42,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 14:13:42,412 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:42,412 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 14:13:42,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:13:42,413 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:42,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:42,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1557492172, now seen corresponding path program 1 times [2020-09-25 14:13:42,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:42,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [651532170] [2020-09-25 14:13:42,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:42,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:42,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:43,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:44,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:45,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:45,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:45,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 14:13:47,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 14:13:47,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 14:13:47,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:13:47,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:13:47,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-25 14:13:47,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:47,854 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:13:47,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:13:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:47,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:48,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:48,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:13:48,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:48,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-25 14:13:48,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:48,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:48,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:48,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:48,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:13:48,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:48,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:13:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:48,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:48,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:48,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:48,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:48,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:48,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:48,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:48,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:48,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:48,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:48,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:48,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:13:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:48,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:48,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:48,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:48,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:48,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:48,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:48,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:48,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:48,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:48,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:48,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:48,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:13:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:48,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:48,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:48,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:48,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:48,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:13:48,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:48,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:48,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:48,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:48,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:48,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:48,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:13:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:48,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:48,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:48,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:48,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:48,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:48,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:48,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:48,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:48,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:48,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:48,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:48,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 14:13:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:48,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:48,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:48,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:48,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:13:48,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:13:48,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 14:13:48,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:48,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:48,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:48,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:48,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:13:48,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:48,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:13:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:48,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:48,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:48,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:13:48,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:48,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:48,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:48,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:48,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:48,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:13:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:48,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:48,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:48,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:48,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:48,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:13:48,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:48,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:48,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:48,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:48,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:48,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:48,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 14:13:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:48,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:48,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:48,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:48,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:48,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:13:48,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:48,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:13:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:48,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:48,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 14:13:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:48,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:48,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:48,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:48,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:48,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:48,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:48,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:48,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:48,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:48,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:48,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:48,333 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 14:13:48,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [651532170] [2020-09-25 14:13:48,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:13:48,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:13:48,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017096729] [2020-09-25 14:13:48,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:13:48,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:13:48,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:13:48,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:13:48,338 INFO L87 Difference]: Start difference. First operand 259 states and 282 transitions. Second operand 9 states. [2020-09-25 14:13:48,847 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:13:50,153 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 14:13:50,765 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 14:13:51,497 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:13:51,838 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:13:52,694 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:52,996 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:13:53,284 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:53,855 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:13:54,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:13:54,861 INFO L93 Difference]: Finished difference Result 670 states and 819 transitions. [2020-09-25 14:13:54,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 14:13:54,861 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 165 [2020-09-25 14:13:54,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:13:54,869 INFO L225 Difference]: With dead ends: 670 [2020-09-25 14:13:54,869 INFO L226 Difference]: Without dead ends: 497 [2020-09-25 14:13:54,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-09-25 14:13:54,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-09-25 14:13:54,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 383. [2020-09-25 14:13:54,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-09-25 14:13:54,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 425 transitions. [2020-09-25 14:13:54,951 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 425 transitions. Word has length 165 [2020-09-25 14:13:54,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:13:54,952 INFO L479 AbstractCegarLoop]: Abstraction has 383 states and 425 transitions. [2020-09-25 14:13:54,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:13:54,952 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 425 transitions. [2020-09-25 14:13:54,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 14:13:54,956 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:54,957 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] [2020-09-25 14:13:54,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:13:54,957 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:54,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:54,958 INFO L82 PathProgramCache]: Analyzing trace with hash 566137232, now seen corresponding path program 1 times [2020-09-25 14:13:54,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:54,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928764949] [2020-09-25 14:13:54,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:55,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:55,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:55,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:56,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:56,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:56,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:00,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:00,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 14:14:00,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:14:00,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 14:14:00,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:00,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:00,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:14:00,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:14:00,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 14:14:00,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:00,386 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:14:00,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:14:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:00,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:00,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:00,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:14:00,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:00,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-09-25 14:14:00,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:00,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:00,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:00,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:00,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:14:00,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:00,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:14:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:00,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:00,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:00,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:00,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:00,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:00,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:00,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:00,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:00,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:00,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:00,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:14:00,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:14:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:00,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:00,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:00,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:00,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:00,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:00,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:00,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:00,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:14:00,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:14:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:00,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:00,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:00,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:00,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:00,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:14:00,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:00,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:00,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:00,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:00,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:00,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:00,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:14:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:00,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:00,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:00,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:00,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:00,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:00,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:00,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:00,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:00,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:00,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:00,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:00,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:14:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:00,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:00,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:00,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:14:00,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:00,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:14:00,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:00,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:14:00,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:00,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 14:14:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:00,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:00,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:00,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:00,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:14:00,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:14:00,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 14:14:00,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:00,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:00,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:14:00,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:14:00,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:14:00,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:00,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:14:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:00,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:00,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:00,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:14:00,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:00,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:14:00,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:00,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:00,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:14:00,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:14:00,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:14:00,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:00,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:14:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:00,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:00,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:00,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:00,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:00,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:00,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:00,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:00,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:00,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:00,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:00,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:00,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 14:14:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:00,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:00,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:00,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:00,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:00,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:00,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:00,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:00,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:00,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:14:00,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:00,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:00,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 14:14:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:00,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:00,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:00,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:00,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:00,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:00,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:00,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:00,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:00,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:14:00,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:00,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:01,016 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 14:14:01,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928764949] [2020-09-25 14:14:01,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:14:01,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:14:01,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659097442] [2020-09-25 14:14:01,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:14:01,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:14:01,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:14:01,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:14:01,021 INFO L87 Difference]: Start difference. First operand 383 states and 425 transitions. Second operand 7 states. [2020-09-25 14:14:01,525 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:14:02,920 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:14:04,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:14:04,597 INFO L93 Difference]: Finished difference Result 1060 states and 1289 transitions. [2020-09-25 14:14:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:14:04,598 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-09-25 14:14:04,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:14:04,606 INFO L225 Difference]: With dead ends: 1060 [2020-09-25 14:14:04,606 INFO L226 Difference]: Without dead ends: 787 [2020-09-25 14:14:04,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-25 14:14:04,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2020-09-25 14:14:04,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 610. [2020-09-25 14:14:04,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2020-09-25 14:14:04,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 679 transitions. [2020-09-25 14:14:04,710 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 679 transitions. Word has length 170 [2020-09-25 14:14:04,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:14:04,710 INFO L479 AbstractCegarLoop]: Abstraction has 610 states and 679 transitions. [2020-09-25 14:14:04,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:14:04,711 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 679 transitions. [2020-09-25 14:14:04,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 14:14:04,714 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:14:04,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:14:04,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:14:04,715 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:14:04,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:14:04,715 INFO L82 PathProgramCache]: Analyzing trace with hash -996827051, now seen corresponding path program 1 times [2020-09-25 14:14:04,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:14:04,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162492298] [2020-09-25 14:14:04,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:14:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:04,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:04,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:07,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:07,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:07,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:07,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:09,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:09,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 14:14:09,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:14:09,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 14:14:09,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:09,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:09,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:14:09,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 14:14:09,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:14:09,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:10,152 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:14:10,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:14:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:10,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:14:10,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:10,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 14:14:10,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:10,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:10,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:10,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:10,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:10,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:10,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:14:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:10,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:10,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:10,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:10,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:10,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:10,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:10,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:10,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:10,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:10,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:14:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:10,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:10,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:10,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:14:10,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:10,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:10,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:10,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:10,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:10,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:10,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:14:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:10,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:10,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:10,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:10,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:10,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:10,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:10,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:10,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:14:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:10,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:10,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:10,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:10,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:10,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:10,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:10,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:10,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:10,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:10,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:14:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:10,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:14:10,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:10,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:10,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:10,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:10,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:10,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:10,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:10,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:10,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 14:14:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:11,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:12,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:12,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 14:14:12,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:14:12,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1950 [2020-09-25 14:14:12,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:12,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:12,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:14:12,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:14:12,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 14:14:12,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:14:12,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:14:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:12,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:12,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:12,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:12,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:13,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:13,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 14:14:13,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:14:13,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 722 [2020-09-25 14:14:13,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:13,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:13,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:14:13,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:14:13,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 14:14:13,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:14:13,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:14:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:13,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:13,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:13,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:13,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:14:13,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:14:13,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 14:14:13,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:13,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:13,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 14:14:13,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:13,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:14:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:13,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:13,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:13,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:14:13,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:13,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:13,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:13,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:13,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:13,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:13,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:13,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:13,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:14:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:13,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:13,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:13,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:13,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:13,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:13,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:13,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:13,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:13,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:13,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:13,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:14:13,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 14:14:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:13,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:13,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:13,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:13,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:13,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:13,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:13,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:13,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:13,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:13,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:13,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:13,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 14:14:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:13,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:13,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:13,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:13,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:13,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:14:13,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:13,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:13,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:14:13,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:13,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:13,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:13,330 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 14:14:13,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1162492298] [2020-09-25 14:14:13,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:14:13,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 14:14:13,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115634707] [2020-09-25 14:14:13,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:14:13,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:14:13,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:14:13,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:14:13,333 INFO L87 Difference]: Start difference. First operand 610 states and 679 transitions. Second operand 11 states. [2020-09-25 14:14:13,836 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:14:15,381 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:14:15,675 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:16,056 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:14:17,074 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:17,436 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:14:17,762 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:18,086 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:14:18,383 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:19,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:14:19,031 INFO L93 Difference]: Finished difference Result 780 states and 923 transitions. [2020-09-25 14:14:19,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 14:14:19,032 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 194 [2020-09-25 14:14:19,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:14:19,043 INFO L225 Difference]: With dead ends: 780 [2020-09-25 14:14:19,043 INFO L226 Difference]: Without dead ends: 777 [2020-09-25 14:14:19,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2020-09-25 14:14:19,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2020-09-25 14:14:19,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 610. [2020-09-25 14:14:19,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2020-09-25 14:14:19,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 678 transitions. [2020-09-25 14:14:19,130 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 678 transitions. Word has length 194 [2020-09-25 14:14:19,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:14:19,131 INFO L479 AbstractCegarLoop]: Abstraction has 610 states and 678 transitions. [2020-09-25 14:14:19,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:14:19,131 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 678 transitions. [2020-09-25 14:14:19,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 14:14:19,135 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:14:19,135 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:14:19,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:14:19,135 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:14:19,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:14:19,136 INFO L82 PathProgramCache]: Analyzing trace with hash 473256955, now seen corresponding path program 1 times [2020-09-25 14:14:19,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:14:19,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116189752] [2020-09-25 14:14:19,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:14:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:19,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:19,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking...