/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 01:34:18,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 01:34:18,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 01:34:18,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 01:34:18,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 01:34:18,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 01:34:18,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 01:34:18,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 01:34:18,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 01:34:18,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 01:34:18,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 01:34:18,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 01:34:18,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 01:34:18,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 01:34:18,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 01:34:18,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 01:34:18,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 01:34:18,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 01:34:18,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 01:34:18,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 01:34:18,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 01:34:18,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 01:34:18,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 01:34:18,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 01:34:18,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 01:34:18,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 01:34:18,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 01:34:18,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 01:34:18,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 01:34:18,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 01:34:18,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 01:34:18,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 01:34:18,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 01:34:18,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 01:34:18,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 01:34:18,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 01:34:18,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 01:34:18,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 01:34:18,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 01:34:18,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 01:34:18,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 01:34:18,427 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 [2020-10-15 01:34:18,479 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 01:34:18,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 01:34:18,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 01:34:18,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 01:34:18,481 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 01:34:18,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 01:34:18,483 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 01:34:18,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 01:34:18,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 01:34:18,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 01:34:18,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 01:34:18,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 01:34:18,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 01:34:18,485 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 01:34:18,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 01:34:18,485 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 01:34:18,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 01:34:18,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 01:34:18,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 01:34:18,487 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 01:34:18,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 01:34:18,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 01:34:18,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 01:34:18,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 01:34:18,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 01:34:18,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 01:34:18,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 01:34:18,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 01:34:18,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 01:34:18,488 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 01:34:18,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 01:34:18,844 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 01:34:18,850 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 01:34:18,851 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 01:34:18,852 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 01:34:18,853 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-10-15 01:34:18,929 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/220caf9e2/f6e45b1e8c234fcd9b816ff9f881fe56/FLAG99b2412ce [2020-10-15 01:34:19,548 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 01:34:19,549 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-10-15 01:34:19,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/220caf9e2/f6e45b1e8c234fcd9b816ff9f881fe56/FLAG99b2412ce [2020-10-15 01:34:19,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/220caf9e2/f6e45b1e8c234fcd9b816ff9f881fe56 [2020-10-15 01:34:19,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 01:34:19,813 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 01:34:19,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 01:34:19,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 01:34:19,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 01:34:19,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:34:19" (1/1) ... [2020-10-15 01:34:19,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4304ba7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:34:19, skipping insertion in model container [2020-10-15 01:34:19,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:34:19" (1/1) ... [2020-10-15 01:34:19,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 01:34:19,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 01:34:20,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 01:34:20,318 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 01:34:20,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 01:34:20,444 INFO L208 MainTranslator]: Completed translation [2020-10-15 01:34:20,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:34:20 WrapperNode [2020-10-15 01:34:20,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 01:34:20,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 01:34:20,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 01:34:20,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 01:34:20,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:34:20" (1/1) ... [2020-10-15 01:34:20,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:34:20" (1/1) ... [2020-10-15 01:34:20,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:34:20" (1/1) ... [2020-10-15 01:34:20,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:34:20" (1/1) ... [2020-10-15 01:34:20,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:34:20" (1/1) ... [2020-10-15 01:34:20,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:34:20" (1/1) ... [2020-10-15 01:34:20,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:34:20" (1/1) ... [2020-10-15 01:34:20,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 01:34:20,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 01:34:20,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 01:34:20,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 01:34:20,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:34:20" (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 [2020-10-15 01:34:20,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 01:34:20,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 01:34:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-15 01:34:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-15 01:34:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-15 01:34:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-15 01:34:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-15 01:34:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-15 01:34:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-15 01:34:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-15 01:34:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-15 01:34:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-15 01:34:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-15 01:34:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-15 01:34:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-15 01:34:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-15 01:34:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-15 01:34:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-15 01:34:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-15 01:34:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-15 01:34:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-15 01:34:20,606 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-15 01:34:20,606 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-15 01:34:20,606 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-15 01:34:20,606 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-15 01:34:20,606 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-15 01:34:20,607 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-15 01:34:20,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-15 01:34:20,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-15 01:34:20,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-15 01:34:20,607 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-15 01:34:20,607 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-15 01:34:20,607 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-15 01:34:20,608 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-15 01:34:20,608 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 01:34:20,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-15 01:34:20,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-15 01:34:20,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-15 01:34:20,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-15 01:34:20,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-15 01:34:20,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-15 01:34:20,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-15 01:34:20,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 01:34:20,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 01:34:20,609 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-15 01:34:20,609 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-15 01:34:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-15 01:34:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-15 01:34:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-15 01:34:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-15 01:34:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-15 01:34:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-15 01:34:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-15 01:34:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-15 01:34:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-15 01:34:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-15 01:34:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-15 01:34:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-15 01:34:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-15 01:34:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-15 01:34:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-15 01:34:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-15 01:34:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-15 01:34:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-15 01:34:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-15 01:34:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-15 01:34:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-15 01:34:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-15 01:34:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-15 01:34:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-15 01:34:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-15 01:34:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-15 01:34:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 01:34:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-15 01:34:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-15 01:34:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-15 01:34:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-15 01:34:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-15 01:34:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 01:34:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-15 01:34:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 01:34:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-15 01:34:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-15 01:34:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 01:34:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 01:34:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 01:34:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 01:34:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-15 01:34:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 01:34:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-15 01:34:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-15 01:34:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 01:34:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-15 01:34:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-15 01:34:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-15 01:34:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 01:34:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 01:34:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 01:34:21,693 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 01:34:21,693 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-15 01:34:21,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:34:21 BoogieIcfgContainer [2020-10-15 01:34:21,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 01:34:21,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 01:34:21,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 01:34:21,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 01:34:21,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:34:19" (1/3) ... [2020-10-15 01:34:21,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a648a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:34:21, skipping insertion in model container [2020-10-15 01:34:21,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:34:20" (2/3) ... [2020-10-15 01:34:21,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a648a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:34:21, skipping insertion in model container [2020-10-15 01:34:21,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:34:21" (3/3) ... [2020-10-15 01:34:21,708 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2020-10-15 01:34:21,719 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 01:34:21,727 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 01:34:21,742 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 01:34:21,768 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 01:34:21,769 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 01:34:21,769 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 01:34:21,769 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 01:34:21,769 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 01:34:21,770 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 01:34:21,770 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 01:34:21,770 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 01:34:21,793 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-10-15 01:34:21,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-15 01:34:21,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:34:21,806 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] [2020-10-15 01:34:21,806 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:34:21,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:34:21,812 INFO L82 PathProgramCache]: Analyzing trace with hash 616057763, now seen corresponding path program 1 times [2020-10-15 01:34:21,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:34:21,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106024077] [2020-10-15 01:34:21,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:34:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:23,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:23,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:23,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:26,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:26,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 01:34:26,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 01:34:26,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4576 [2020-10-15 01:34:26,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:26,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:26,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 01:34:26,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:26,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 01:34:26,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 01:34:27,011 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:34:27,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:34:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:27,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:27,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:27,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:27,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:27,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-15 01:34:27,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:27,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:27,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:27,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:27,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:34:27,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:27,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:34:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:27,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:27,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:27,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:27,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:27,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:34:27,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:27,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:27,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:27,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:27,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:27,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:27,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:34:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:27,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:27,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:27,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:27,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:27,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:27,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:27,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:27,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:27,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:27,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:27,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:27,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:34:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:27,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:27,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:27,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:27,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:27,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:27,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:27,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:27,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:27,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:27,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:27,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:27,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:34:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:27,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:27,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:27,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:27,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:27,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:27,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:27,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:27,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:27,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:27,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:27,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:27,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 01:34:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:27,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:27,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:27,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:27,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:27,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:27,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:27,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:27,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:27,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:27,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:27,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:27,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 01:34:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:27,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:27,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:27,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:27,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:27,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:27,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:27,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:27,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:27,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:27,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:27,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:27,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:34:27,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106024077] [2020-10-15 01:34:27,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:34:27,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 01:34:27,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076978706] [2020-10-15 01:34:27,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 01:34:27,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:34:27,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 01:34:27,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-15 01:34:27,216 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 7 states. [2020-10-15 01:34:27,656 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:28,469 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:28,823 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:29,166 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:29,721 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:30,180 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:34:31,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:34:31,790 INFO L93 Difference]: Finished difference Result 496 states and 660 transitions. [2020-10-15 01:34:31,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 01:34:31,792 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2020-10-15 01:34:31,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:34:31,819 INFO L225 Difference]: With dead ends: 496 [2020-10-15 01:34:31,819 INFO L226 Difference]: Without dead ends: 309 [2020-10-15 01:34:31,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-15 01:34:31,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-10-15 01:34:31,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 256. [2020-10-15 01:34:31,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-15 01:34:31,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 310 transitions. [2020-10-15 01:34:31,962 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 310 transitions. Word has length 46 [2020-10-15 01:34:31,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:34:31,963 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 310 transitions. [2020-10-15 01:34:31,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 01:34:31,963 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 310 transitions. [2020-10-15 01:34:31,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-15 01:34:31,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:34:31,968 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] [2020-10-15 01:34:31,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 01:34:31,969 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:34:31,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:34:31,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1214773531, now seen corresponding path program 1 times [2020-10-15 01:34:31,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:34:31,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332958377] [2020-10-15 01:34:31,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:34:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:32,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:32,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:32,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:33,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:33,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 01:34:33,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 01:34:33,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1907 [2020-10-15 01:34:33,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:33,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:33,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 01:34:33,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:33,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-15 01:34:33,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:34,214 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:34:34,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:34:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:34,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:34,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:34,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:34,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:34,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-15 01:34:34,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:34,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:34,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:34,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:34,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:34:34,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:34,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:34:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:34,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:34,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:34,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:34,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:34,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:34,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:34,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:34,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:34,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:34,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:34,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:34,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:34:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:34,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:34,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:34,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:34,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:34,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:34,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:34,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:34,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:34,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:34,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:34,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:34,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:34:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:34,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:34,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:34,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:34,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:34,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:34:34,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:34,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:34,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:34,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:34,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:34,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:34,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:34:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:34,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:34,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:34,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:34,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:34,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:34,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:34,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:34,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:34,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 01:34:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:34,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:34,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:34,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:34,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:34,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:34:34,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:34,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:34,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:34,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:34,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:34,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:34,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 01:34:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:34,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:34,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:34,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:34,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:34,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:34,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:34,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:34,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:34,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:34,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:34,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:34,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 01:34:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:34,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:34,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:34,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:34,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:34,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:34,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:34,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:34,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:34,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:34,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:34,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:34,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:34:34,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332958377] [2020-10-15 01:34:34,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:34:34,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 01:34:34,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585989628] [2020-10-15 01:34:34,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 01:34:34,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:34:34,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 01:34:34,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 01:34:34,428 INFO L87 Difference]: Start difference. First operand 256 states and 310 transitions. Second operand 8 states. [2020-10-15 01:34:34,755 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:35,688 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-15 01:34:35,996 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:36,240 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:36,900 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:34:37,174 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:34:38,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:34:38,485 INFO L93 Difference]: Finished difference Result 706 states and 946 transitions. [2020-10-15 01:34:38,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 01:34:38,485 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-10-15 01:34:38,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:34:38,493 INFO L225 Difference]: With dead ends: 706 [2020-10-15 01:34:38,493 INFO L226 Difference]: Without dead ends: 474 [2020-10-15 01:34:38,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-15 01:34:38,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-10-15 01:34:38,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 409. [2020-10-15 01:34:38,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-10-15 01:34:38,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 515 transitions. [2020-10-15 01:34:38,603 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 515 transitions. Word has length 55 [2020-10-15 01:34:38,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:34:38,604 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 515 transitions. [2020-10-15 01:34:38,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 01:34:38,604 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 515 transitions. [2020-10-15 01:34:38,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-15 01:34:38,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:34:38,609 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:34:38,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 01:34:38,610 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:34:38,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:34:38,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1998560455, now seen corresponding path program 1 times [2020-10-15 01:34:38,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:34:38,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889372746] [2020-10-15 01:34:38,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:34:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:38,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:38,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:38,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:38,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:38,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:39,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:43,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:43,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-15 01:34:43,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 01:34:43,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 01:34:43,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:43,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:43,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 01:34:43,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:43,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 01:34:43,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:43,952 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:34:43,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:34:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:44,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:44,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-15 01:34:44,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:44,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:44,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:34:44,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:44,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:34:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:44,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:44,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:44,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:44,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:44,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:44,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:44,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:34:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:44,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:44,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:44,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:44,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:44,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:44,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:44,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:34:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:44,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:44,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:44,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:44,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:44,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:44,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:44,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:34:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:44,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:44,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:34:44,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:44,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:44,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 01:34:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:44,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:44,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:44,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:44,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:44,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:44,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:44,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 01:34:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 01:34:44,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:44,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 01:34:44,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 01:34:44,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 01:34:44,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:44,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 01:34:44,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:44,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 01:34:44,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:44,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:44,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 01:34:44,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:44,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:44,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:44,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:44,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:44,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:44,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:44,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 01:34:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-15 01:34:44,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 01:34:44,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-15 01:34:44,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 01:34:44,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-15 01:34:44,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 01:34:44,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:44,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 01:34:44,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:44,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 01:34:44,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 01:34:44,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-15 01:34:44,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 01:34:44,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:44,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 01:34:44,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:44,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 01:34:44,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 01:34:44,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 01:34:44,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 01:34:44,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:44,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 01:34:44,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:44,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 01:34:44,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:44,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:44,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 01:34:44,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:44,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:34:44,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:44,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:34:44,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:44,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:44,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:44,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:44,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 01:34:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:44,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:44,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:44,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:44,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:44,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:44,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:44,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-15 01:34:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:44,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:44,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:44,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:44,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:44,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:44,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:44,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-15 01:34:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:44,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:44,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:44,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:44,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:44,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:34:44,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:44,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:44,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:44,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:44,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:44,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:44,641 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 01:34:44,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889372746] [2020-10-15 01:34:44,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:34:44,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 01:34:44,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665570994] [2020-10-15 01:34:44,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 01:34:44,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:34:44,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 01:34:44,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-15 01:34:44,645 INFO L87 Difference]: Start difference. First operand 409 states and 515 transitions. Second operand 13 states. [2020-10-15 01:34:45,078 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:45,855 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:46,415 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-15 01:34:46,693 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-15 01:34:47,001 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-15 01:34:47,273 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-15 01:34:47,602 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:47,939 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-15 01:34:48,301 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:48,604 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-15 01:34:51,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:34:51,255 INFO L93 Difference]: Finished difference Result 1503 states and 2150 transitions. [2020-10-15 01:34:51,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 01:34:51,256 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 107 [2020-10-15 01:34:51,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:34:51,266 INFO L225 Difference]: With dead ends: 1503 [2020-10-15 01:34:51,266 INFO L226 Difference]: Without dead ends: 1118 [2020-10-15 01:34:51,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=224, Invalid=768, Unknown=0, NotChecked=0, Total=992 [2020-10-15 01:34:51,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2020-10-15 01:34:51,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 807. [2020-10-15 01:34:51,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-10-15 01:34:51,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1016 transitions. [2020-10-15 01:34:51,468 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1016 transitions. Word has length 107 [2020-10-15 01:34:51,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:34:51,469 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 1016 transitions. [2020-10-15 01:34:51,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 01:34:51,469 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1016 transitions. [2020-10-15 01:34:51,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 01:34:51,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:34:51,474 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] [2020-10-15 01:34:51,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 01:34:51,474 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:34:51,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:34:51,475 INFO L82 PathProgramCache]: Analyzing trace with hash -910660730, now seen corresponding path program 1 times [2020-10-15 01:34:51,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:34:51,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511083496] [2020-10-15 01:34:51,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:34:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:51,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:51,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:51,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-15 01:34:51,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:51,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-15 01:34:51,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:51,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:51,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:51,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-15 01:34:51,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:51,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:51,936 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:34:51,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:34:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:51,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:51,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:51,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:51,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:51,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 01:34:51,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:51,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:51,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:51,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:51,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:51,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:51,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:34:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:51,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:51,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:51,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:51,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:51,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:51,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:51,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:51,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:51,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:34:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:51,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:51,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:51,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:51,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:51,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:51,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:51,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:51,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:51,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:51,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:51,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:51,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:34:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:51,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:51,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:51,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:51,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:51,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:51,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:51,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:51,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:51,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:51,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:51,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:51,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:34:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:51,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:51,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:51,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:51,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:51,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:51,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:51,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:51,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:51,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:51,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:51,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:52,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 01:34:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:52,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:52,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:52,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:52,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:52,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:52,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:52,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:52,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:52,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:52,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 01:34:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:52,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:52,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:52,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-15 01:34:52,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:52,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 01:34:52,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:52,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:52,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:52,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-15 01:34:52,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:52,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:52,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:52,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:52,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:52,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 01:34:52,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:52,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 01:34:52,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:52,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:52,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:52,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 01:34:52,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:52,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:52,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:52,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:52,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:52,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 01:34:52,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:52,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 01:34:52,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:52,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:52,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:52,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 01:34:52,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:52,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:52,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:52,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:52,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:52,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 01:34:52,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:52,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 01:34:52,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:52,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:52,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:52,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 01:34:52,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:52,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:52,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:52,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:52,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:52,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:34:52,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:52,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:52,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:52,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:52,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 01:34:52,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:52,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:52,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:52,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 01:34:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:52,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:52,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:52,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:52,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:52,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:34:52,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:52,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:52,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:52,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:52,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:52,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 01:34:52,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-15 01:34:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:52,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:52,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:52,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:52,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:52,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:52,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:52,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:52,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:52,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:52,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:52,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:52,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 01:34:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:52,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:52,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:52,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:52,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:52,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:52,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:52,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:52,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:52,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:52,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:52,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:52,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:34:52,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511083496] [2020-10-15 01:34:52,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:34:52,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 01:34:52,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989458980] [2020-10-15 01:34:52,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 01:34:52,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:34:52,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 01:34:52,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 01:34:52,219 INFO L87 Difference]: Start difference. First operand 807 states and 1016 transitions. Second operand 8 states. [2020-10-15 01:34:53,132 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:34:53,382 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:34:53,631 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:34:55,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:34:55,039 INFO L93 Difference]: Finished difference Result 1847 states and 2581 transitions. [2020-10-15 01:34:55,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 01:34:55,040 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2020-10-15 01:34:55,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:34:55,052 INFO L225 Difference]: With dead ends: 1847 [2020-10-15 01:34:55,052 INFO L226 Difference]: Without dead ends: 1064 [2020-10-15 01:34:55,056 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-15 01:34:55,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2020-10-15 01:34:55,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 823. [2020-10-15 01:34:55,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2020-10-15 01:34:55,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1032 transitions. [2020-10-15 01:34:55,215 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1032 transitions. Word has length 88 [2020-10-15 01:34:55,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:34:55,218 INFO L479 AbstractCegarLoop]: Abstraction has 823 states and 1032 transitions. [2020-10-15 01:34:55,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 01:34:55,218 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1032 transitions. [2020-10-15 01:34:55,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 01:34:55,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:34:55,224 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] [2020-10-15 01:34:55,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 01:34:55,225 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:34:55,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:34:55,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1039639525, now seen corresponding path program 1 times [2020-10-15 01:34:55,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:34:55,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706476782] [2020-10-15 01:34:55,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:34:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:55,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:55,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:55,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-15 01:34:55,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:55,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 575 [2020-10-15 01:34:55,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:55,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:55,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 01:34:55,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:55,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 01:34:55,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:56,058 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:34:56,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:34:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:56,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:56,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:56,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:56,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:56,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 01:34:56,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:56,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:56,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:56,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:56,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:34:56,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:56,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:34:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:56,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:56,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:56,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:56,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:56,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:56,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:56,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:56,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:56,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:34:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:56,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:56,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:56,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:56,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:56,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:56,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:56,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:56,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:56,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:56,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:56,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:56,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:34:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:56,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:56,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:56,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:56,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:56,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:56,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:56,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:56,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:56,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:56,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:56,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:56,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:34:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:56,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:56,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:56,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:56,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:56,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:56,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:56,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:56,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:56,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:56,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:56,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:56,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 01:34:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:56,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:56,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:56,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:56,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:56,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:56,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:56,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:56,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:56,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:56,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:56,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 01:34:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:56,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:56,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:56,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-15 01:34:56,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:56,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 01:34:56,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:56,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:56,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:56,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-15 01:34:56,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 01:34:56,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:56,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:56,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:56,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:56,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:56,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 01:34:56,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:56,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 01:34:56,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:56,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:56,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:56,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:56,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 01:34:56,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:56,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:56,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:56,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:56,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 01:34:56,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:56,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 01:34:56,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:56,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:56,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:56,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:56,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 01:34:56,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:56,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:56,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:56,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:56,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 01:34:56,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:56,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:34:56,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:56,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:56,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:56,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:56,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 01:34:56,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:56,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:56,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:56,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:56,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:34:56,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:56,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:34:56,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:56,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:56,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:56,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:56,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 01:34:56,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:56,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 01:34:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:56,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:56,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:56,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:56,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:56,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:34:56,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:56,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:56,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:56,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:56,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:56,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:56,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-15 01:34:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:56,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:56,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:56,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:56,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:56,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:56,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:56,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:56,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:56,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:56,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:56,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:56,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 01:34:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:56,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:56,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:56,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:56,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:56,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:56,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:56,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:56,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:56,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:56,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:56,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:56,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:34:56,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706476782] [2020-10-15 01:34:56,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:34:56,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 01:34:56,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622083619] [2020-10-15 01:34:56,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 01:34:56,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:34:56,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 01:34:56,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 01:34:56,334 INFO L87 Difference]: Start difference. First operand 823 states and 1032 transitions. Second operand 7 states. [2020-10-15 01:34:56,636 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:57,116 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:35:00,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:35:00,391 INFO L93 Difference]: Finished difference Result 2690 states and 3774 transitions. [2020-10-15 01:35:00,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 01:35:00,391 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2020-10-15 01:35:00,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:35:00,405 INFO L225 Difference]: With dead ends: 2690 [2020-10-15 01:35:00,405 INFO L226 Difference]: Without dead ends: 1873 [2020-10-15 01:35:00,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-15 01:35:00,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1873 states. [2020-10-15 01:35:00,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1873 to 1573. [2020-10-15 01:35:00,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1573 states. [2020-10-15 01:35:00,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2010 transitions. [2020-10-15 01:35:00,661 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2010 transitions. Word has length 88 [2020-10-15 01:35:00,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:35:00,661 INFO L479 AbstractCegarLoop]: Abstraction has 1573 states and 2010 transitions. [2020-10-15 01:35:00,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 01:35:00,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2010 transitions. [2020-10-15 01:35:00,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 01:35:00,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:35:00,664 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] [2020-10-15 01:35:00,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 01:35:00,665 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:35:00,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:35:00,665 INFO L82 PathProgramCache]: Analyzing trace with hash 745790239, now seen corresponding path program 1 times [2020-10-15 01:35:00,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:35:00,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862905959] [2020-10-15 01:35:00,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:35:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 01:35:00,705 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 01:35:00,706 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 01:35:00,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 01:35:00,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:35:00 BoogieIcfgContainer [2020-10-15 01:35:00,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 01:35:00,766 INFO L168 Benchmark]: Toolchain (without parser) took 40941.61 ms. Allocated memory was 147.3 MB in the beginning and 731.9 MB in the end (delta: 584.6 MB). Free memory was 102.3 MB in the beginning and 291.6 MB in the end (delta: -189.3 MB). Peak memory consumption was 395.3 MB. Max. memory is 7.1 GB. [2020-10-15 01:35:00,769 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. [2020-10-15 01:35:00,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.07 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 101.9 MB in the beginning and 167.3 MB in the end (delta: -65.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-10-15 01:35:00,771 INFO L168 Benchmark]: Boogie Preprocessor took 92.73 ms. Allocated memory is still 203.9 MB. Free memory was 167.3 MB in the beginning and 163.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-10-15 01:35:00,772 INFO L168 Benchmark]: RCFGBuilder took 1159.97 ms. Allocated memory was 203.9 MB in the beginning and 233.8 MB in the end (delta: 29.9 MB). Free memory was 163.3 MB in the beginning and 184.9 MB in the end (delta: -21.6 MB). Peak memory consumption was 76.3 MB. Max. memory is 7.1 GB. [2020-10-15 01:35:00,773 INFO L168 Benchmark]: TraceAbstraction took 39052.20 ms. Allocated memory was 233.8 MB in the beginning and 731.9 MB in the end (delta: 498.1 MB). Free memory was 184.9 MB in the beginning and 291.6 MB in the end (delta: -106.7 MB). Peak memory consumption was 391.4 MB. Max. memory is 7.1 GB. [2020-10-15 01:35:00,779 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 632.07 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 101.9 MB in the beginning and 167.3 MB in the end (delta: -65.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.73 ms. Allocated memory is still 203.9 MB. Free memory was 167.3 MB in the beginning and 163.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1159.97 ms. Allocated memory was 203.9 MB in the beginning and 233.8 MB in the end (delta: 29.9 MB). Free memory was 163.3 MB in the beginning and 184.9 MB in the end (delta: -21.6 MB). Peak memory consumption was 76.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 39052.20 ms. Allocated memory was 233.8 MB in the beginning and 731.9 MB in the end (delta: 498.1 MB). Free memory was 184.9 MB in the beginning and 291.6 MB in the end (delta: -106.7 MB). Peak memory consumption was 391.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L159] int pumpRunning = 0; [L160] int systemActive = 1; [L399] int waterLevel = 1; [L400] int methaneLevelCritical = 0; [L511] int cleanupTimeShifts = 4; [L802] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L584] int retValue_acc ; [L585] int tmp ; [L589] FCALL select_helpers() [L590] FCALL select_features() [L591] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L591] RET, EXPR valid_product() [L591] tmp = valid_product() [L593] COND TRUE \read(tmp) [L595] FCALL setup() [L596] CALL runTest() [L578] CALL test() [L84] int splverifierCounter ; [L85] int tmp ; [L86] int tmp___0 ; [L87] int tmp___1 ; [L88] int tmp___2 ; [L91] splverifierCounter = 0 [L93] COND TRUE 1 [L95] COND TRUE splverifierCounter < 4 [L101] tmp = __VERIFIER_nondet_int() [L103] COND TRUE \read(tmp) [L105] CALL waterRise() [L417] COND TRUE waterLevel < 2 [L418] waterLevel = waterLevel + 1 [L105] RET waterRise() [L111] tmp___0 = __VERIFIER_nondet_int() [L113] COND TRUE \read(tmp___0) [L115] CALL changeMethaneLevel() [L429] COND FALSE !(\read(methaneLevelCritical)) [L432] methaneLevelCritical = 1 [L115] RET changeMethaneLevel() [L121] tmp___2 = __VERIFIER_nondet_int() [L123] COND TRUE \read(tmp___2) [L138] CALL timeShift() [L167] COND FALSE !(\read(pumpRunning)) [L174] COND TRUE \read(systemActive) [L176] CALL processEnvironment() [L248] int tmp ; [L251] COND FALSE !(\read(pumpRunning)) [L266] CALL processEnvironment__wrappee__lowWaterSensor() [L222] int tmp ; [L225] COND FALSE !(\read(pumpRunning)) [L240] CALL processEnvironment__wrappee__highWaterSensor() [L196] int tmp ; [L199] COND TRUE ! pumpRunning [L201] CALL, EXPR isHighWaterLevel() [L345] int retValue_acc ; [L346] int tmp ; [L347] int tmp___0 ; [L351] CALL, EXPR isHighWaterSensorDry() [L479] int retValue_acc ; [L482] COND FALSE !(waterLevel < 2) [L486] retValue_acc = 0 [L487] return (retValue_acc); [L351] RET, EXPR isHighWaterSensorDry() [L351] tmp = isHighWaterSensorDry() [L353] COND FALSE !(\read(tmp)) [L356] tmp___0 = 1 [L358] retValue_acc = tmp___0 [L359] return (retValue_acc); [L201] RET, EXPR isHighWaterLevel() [L201] tmp = isHighWaterLevel() [L203] COND TRUE \read(tmp) [L205] CALL activatePump() [L276] pumpRunning = 1 [L205] RET activatePump() [L240] RET processEnvironment__wrappee__highWaterSensor() [L266] RET processEnvironment__wrappee__lowWaterSensor() [L176] RET processEnvironment() [L182] CALL __utac_acc__Specification1_spec__1() [L608] int tmp ; [L609] int tmp___0 ; [L613] CALL, EXPR isMethaneLevelCritical() [L438] int retValue_acc ; [L441] retValue_acc = methaneLevelCritical [L442] return (retValue_acc); [L613] RET, EXPR isMethaneLevelCritical() [L613] tmp = isMethaneLevelCritical() [L615] COND TRUE \read(tmp) [L617] CALL, EXPR isPumpRunning() [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); [L617] RET, EXPR isPumpRunning() [L617] tmp___0 = isPumpRunning() [L619] COND TRUE \read(tmp___0) [L621] CALL __automaton_fail() [L506] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 251 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 38.9s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 22.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 863 SDtfs, 2466 SDslu, 1113 SDs, 0 SdLazy, 5539 SolverSat, 1762 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 144 SyntacticMatches, 5 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1573occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 970 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 15.2s InterpolantComputationTime, 476 NumberOfCodeBlocks, 476 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 379 ConstructedInterpolants, 0 QuantifiedInterpolants, 125980 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...