/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:18:09,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:18:09,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:18:09,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:18:09,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:18:09,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:18:09,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:18:09,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:18:09,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:18:09,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:18:09,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:18:09,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:18:09,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:18:09,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:18:09,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:18:09,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:18:09,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:18:09,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:18:09,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:18:09,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:18:09,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:18:09,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:18:09,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:18:09,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:18:09,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:18:09,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:18:09,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:18:09,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:18:09,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:18:09,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:18:09,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:18:09,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:18:09,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:18:09,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:18:09,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:18:09,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:18:09,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:18:09,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:18:09,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:18:09,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:18:09,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:18:09,965 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 12:18:09,997 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:18:09,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:18:09,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:18:09,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:18:10,001 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:18:10,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:18:10,002 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:18:10,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:18:10,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:18:10,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:18:10,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:18:10,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:18:10,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:18:10,003 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:18:10,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:18:10,003 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:18:10,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:18:10,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:18:10,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:18:10,007 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:18:10,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:18:10,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:18:10,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:18:10,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:18:10,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:18:10,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:18:10,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:18:10,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:18:10,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:18:10,009 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:18:10,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:18:10,505 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:18:10,509 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:18:10,511 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:18:10,514 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:18:10,515 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product46.cil.c [2020-09-21 12:18:10,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a44683431/513d4fb840aa4e7aa2e5a4c4ad3c3c6d/FLAG25f0b6606 [2020-09-21 12:18:11,268 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:18:11,269 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product46.cil.c [2020-09-21 12:18:11,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a44683431/513d4fb840aa4e7aa2e5a4c4ad3c3c6d/FLAG25f0b6606 [2020-09-21 12:18:11,550 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a44683431/513d4fb840aa4e7aa2e5a4c4ad3c3c6d [2020-09-21 12:18:11,566 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:18:11,574 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:18:11,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:18:11,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:18:11,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:18:11,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:18:11" (1/1) ... [2020-09-21 12:18:11,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ed4b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:11, skipping insertion in model container [2020-09-21 12:18:11,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:18:11" (1/1) ... [2020-09-21 12:18:11,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:18:11,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:18:12,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:18:12,248 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:18:12,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:18:12,376 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:18:12,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:12 WrapperNode [2020-09-21 12:18:12,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:18:12,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:18:12,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:18:12,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:18:12,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:12" (1/1) ... [2020-09-21 12:18:12,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:12" (1/1) ... [2020-09-21 12:18:12,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:12" (1/1) ... [2020-09-21 12:18:12,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:12" (1/1) ... [2020-09-21 12:18:12,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:12" (1/1) ... [2020-09-21 12:18:12,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:12" (1/1) ... [2020-09-21 12:18:12,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:12" (1/1) ... [2020-09-21 12:18:12,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:18:12,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:18:12,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:18:12,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:18:12,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:18:12,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:18:12,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:18:12,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:18:12,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-21 12:18:12,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-21 12:18:12,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-21 12:18:12,596 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:18:12,596 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:18:12,597 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:18:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:18:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:18:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:18:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:18:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:18:12,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:18:12,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:18:12,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:18:12,600 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:18:12,600 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:18:12,601 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:18:12,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:18:12,601 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:18:12,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:18:12,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 12:18:12,602 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:18:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:18:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:18:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:18:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:18:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:18:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 12:18:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 12:18:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:18:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-21 12:18:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:18:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:18:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:18:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:18:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:18:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 12:18:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 12:18:12,606 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:18:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:18:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:18:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:18:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:18:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:18:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:18:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-21 12:18:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-21 12:18:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-21 12:18:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:18:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:18:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:18:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:18:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:18:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:18:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:18:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:18:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:18:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:18:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:18:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:18:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:18:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:18:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:18:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:18:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:18:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:18:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:18:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:18:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:18:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:18:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:18:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:18:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:18:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:18:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:18:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:18:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:18:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:18:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:18:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:18:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:18:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 12:18:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:18:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:18:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:18:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 12:18:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:18:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 12:18:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 12:18:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 12:18:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:18:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-21 12:18:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:18:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:18:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:18:13,697 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:18:13,697 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:18:13,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:18:13 BoogieIcfgContainer [2020-09-21 12:18:13,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:18:13,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:18:13,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:18:13,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:18:13,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:18:11" (1/3) ... [2020-09-21 12:18:13,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6def4e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:18:13, skipping insertion in model container [2020-09-21 12:18:13,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:12" (2/3) ... [2020-09-21 12:18:13,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6def4e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:18:13, skipping insertion in model container [2020-09-21 12:18:13,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:18:13" (3/3) ... [2020-09-21 12:18:13,722 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product46.cil.c [2020-09-21 12:18:13,735 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:18:13,748 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:18:13,775 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:18:13,815 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:18:13,815 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:18:13,815 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:18:13,815 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:18:13,816 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:18:13,817 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:18:13,817 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:18:13,818 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:18:13,851 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2020-09-21 12:18:13,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-21 12:18:13,867 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:13,868 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:18:13,868 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:13,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:13,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1347369271, now seen corresponding path program 1 times [2020-09-21 12:18:13,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:13,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [75438604] [2020-09-21 12:18:13,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:14,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:14,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 12:18:15,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:18:15,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-09-21 12:18:15,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:15,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-21 12:18:15,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:15,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-21 12:18:15,698 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:15,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:15,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:15,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 12:18:15,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:15,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:15,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:15,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:15,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:15,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:15,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:15,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:15,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:15,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:15,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:15,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:15,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:15,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:15,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:15,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:15,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:15,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:15,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:15,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:15,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:15,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:15,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:15,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:15,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:15,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:15,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:15,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:15,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:15,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:15,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:15,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:15,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:15,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:15,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:15,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:15,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:18:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:15,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:15,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:15,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:15,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:18:15,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:15,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:15,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:15,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:15,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:15,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:15,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:15,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:15,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:18:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:15,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:15,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:15,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:15,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:15,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:15,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:15,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 12:18:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:15,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:15,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:15,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:15,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:15,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:15,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:15,899 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:15,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [75438604] [2020-09-21 12:18:15,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:15,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:18:15,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752646083] [2020-09-21 12:18:15,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:18:15,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:15,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:18:15,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:18:15,931 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 4 states. [2020-09-21 12:18:17,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:17,068 INFO L93 Difference]: Finished difference Result 325 states and 415 transitions. [2020-09-21 12:18:17,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:18:17,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-09-21 12:18:17,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:17,100 INFO L225 Difference]: With dead ends: 325 [2020-09-21 12:18:17,100 INFO L226 Difference]: Without dead ends: 179 [2020-09-21 12:18:17,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:18:17,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-09-21 12:18:17,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 147. [2020-09-21 12:18:17,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-09-21 12:18:17,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 172 transitions. [2020-09-21 12:18:17,269 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 172 transitions. Word has length 59 [2020-09-21 12:18:17,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:17,269 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 172 transitions. [2020-09-21 12:18:17,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:18:17,270 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 172 transitions. [2020-09-21 12:18:17,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-21 12:18:17,274 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:17,274 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:18:17,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:18:17,274 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:17,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:17,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1814034675, now seen corresponding path program 1 times [2020-09-21 12:18:17,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:17,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442846773] [2020-09-21 12:18:17,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:17,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:17,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:18,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:18,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-21 12:18:18,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:18:18,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1042 [2020-09-21 12:18:18,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:18,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:18,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-21 12:18:18,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:18:18,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:18,840 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:18,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:18,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:18,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:18,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:18,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:18,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-21 12:18:18,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:18,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:18,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:18,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:18,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:18,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:18,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:18,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:18,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:18,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:18,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:18,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:18,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:18,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:18,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:18,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:18,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:18,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:18,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:18,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:18,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:18,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:18,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:18,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:18,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:18,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:18,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:18,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:18,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:18,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:19,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:19,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:19,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:19,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:19,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:19,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:19,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:19,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:19,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:19,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:19,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:19,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:19,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:19,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:19,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:18:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:19,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:19,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:19,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:18:19,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:19,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:19,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:19,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:19,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:19,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:19,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:19,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 12:18:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:19,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:19,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:19,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:19,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:19,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 12:18:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:19,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:19,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:19,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:19,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:19,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:19,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:19,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442846773] [2020-09-21 12:18:19,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:19,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:18:19,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200717613] [2020-09-21 12:18:19,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:18:19,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:19,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:18:19,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:18:19,091 INFO L87 Difference]: Start difference. First operand 147 states and 172 transitions. Second operand 5 states. [2020-09-21 12:18:19,773 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:20,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:20,706 INFO L93 Difference]: Finished difference Result 266 states and 323 transitions. [2020-09-21 12:18:20,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:18:20,707 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-09-21 12:18:20,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:20,711 INFO L225 Difference]: With dead ends: 266 [2020-09-21 12:18:20,711 INFO L226 Difference]: Without dead ends: 169 [2020-09-21 12:18:20,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:18:20,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-09-21 12:18:20,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 138. [2020-09-21 12:18:20,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-21 12:18:20,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 160 transitions. [2020-09-21 12:18:20,774 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 160 transitions. Word has length 60 [2020-09-21 12:18:20,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:20,775 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 160 transitions. [2020-09-21 12:18:20,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:18:20,775 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 160 transitions. [2020-09-21 12:18:20,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 12:18:20,786 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:20,786 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:18:20,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:18:20,786 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:20,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:20,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1518926539, now seen corresponding path program 1 times [2020-09-21 12:18:20,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:20,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120414638] [2020-09-21 12:18:20,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:20,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:21,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:21,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:21,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 12:18:21,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:18:21,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1039 [2020-09-21 12:18:21,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:21,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:18:21,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-21 12:18:21,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 12:18:21,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:22,228 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:22,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:22,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:22,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:22,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:22,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:22,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-21 12:18:22,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:22,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:22,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:22,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:22,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:22,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:22,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:22,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:22,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:22,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:22,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:22,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:22,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:22,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:22,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:22,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:22,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:22,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:22,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:22,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:22,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:22,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:22,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:22,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:22,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:22,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:22,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:22,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:22,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:22,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:22,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:22,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:22,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:22,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:22,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:22,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:22,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:22,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:22,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:22,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:22,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:22,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:22,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:22,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:22,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:22,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:22,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:22,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:22,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:22,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:22,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:22,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:22,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:22,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:22,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:22,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:22,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:22,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:22,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:18:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:22,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:22,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:22,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:22,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:22,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:22,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:22,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:22,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:22,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:22,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:22,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:22,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:22,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:22,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:22,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:22,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:22,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:22,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:22,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 12:18:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:22,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:22,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:22,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:22,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:22,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:22,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:22,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:22,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:22,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:22,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:22,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 12:18:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:22,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:22,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:22,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:22,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:22,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:18:22,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:22,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:22,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:22,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:22,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:22,432 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:18:22,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120414638] [2020-09-21 12:18:22,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:22,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:18:22,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892280983] [2020-09-21 12:18:22,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:18:22,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:22,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:18:22,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:18:22,435 INFO L87 Difference]: Start difference. First operand 138 states and 160 transitions. Second operand 8 states. [2020-09-21 12:18:22,801 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:23,619 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:24,695 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:25,076 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:18:25,607 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:25,910 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-21 12:18:26,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:26,415 INFO L93 Difference]: Finished difference Result 353 states and 438 transitions. [2020-09-21 12:18:26,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 12:18:26,417 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-09-21 12:18:26,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:26,421 INFO L225 Difference]: With dead ends: 353 [2020-09-21 12:18:26,421 INFO L226 Difference]: Without dead ends: 243 [2020-09-21 12:18:26,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-21 12:18:26,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-21 12:18:26,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 212. [2020-09-21 12:18:26,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-21 12:18:26,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 246 transitions. [2020-09-21 12:18:26,475 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 246 transitions. Word has length 65 [2020-09-21 12:18:26,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:26,476 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 246 transitions. [2020-09-21 12:18:26,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:18:26,476 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 246 transitions. [2020-09-21 12:18:26,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-21 12:18:26,478 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:26,478 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:18:26,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:18:26,479 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:26,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:26,479 INFO L82 PathProgramCache]: Analyzing trace with hash -357754488, now seen corresponding path program 1 times [2020-09-21 12:18:26,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:26,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569043550] [2020-09-21 12:18:26,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:26,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:27,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:27,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-21 12:18:27,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:27,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 714 [2020-09-21 12:18:27,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:27,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:18:27,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-09-21 12:18:27,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:18:27,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:27,575 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:27,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:27,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:27,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:27,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:27,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:27,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-21 12:18:27,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:27,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:27,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:27,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:27,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:27,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:27,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:27,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:27,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:27,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:27,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:27,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:27,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:27,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:27,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:27,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:27,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:27,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:27,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:27,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:27,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:27,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:27,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:27,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:27,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:27,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:27,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:27,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:27,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:27,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:27,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:27,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:27,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:27,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:27,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:27,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:27,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:27,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:27,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:27,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:27,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:27,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:27,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:27,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:27,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:27,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:27,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:27,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:27,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:27,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:27,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:27,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:27,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:27,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:27,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:27,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:27,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:27,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:27,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:18:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:27,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:27,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:27,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:27,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:27,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:27,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:27,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:27,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:27,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:27,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:27,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:27,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:27,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:27,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:27,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:27,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:27,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:27,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:27,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:27,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 12:18:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:27,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:27,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:27,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 12:18:27,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:27,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-21 12:18:27,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:27,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:18:27,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:18:27,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:18:27,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:27,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:27,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:27,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:27,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:18:27,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:27,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-21 12:18:27,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:27,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:18:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 12:18:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:18:27,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:27,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:28,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:28,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:28,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:28,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:28,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 12:18:28,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:28,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:28,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:28,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:18:28,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:28,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:28,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:28,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:28,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:28,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:28,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:18:28,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:28,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:28,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:28,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:28,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:28,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:28,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:28,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:28,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:18:28,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:28,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:18:28,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:28,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:28,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 12:18:28,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:28,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:28,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:28,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:28,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:28,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:18:28,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:28,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:28,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:28,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:28,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:28,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:28,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:28,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:28,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:28,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:28,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:28,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:28,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:28,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:28,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:28,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:28,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:28,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:28,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:28,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:28,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:28,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:28,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:28,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:28,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:28,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:28,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:28,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:28,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:28,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-21 12:18:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:28,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:28,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:28,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:28,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:28,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:28,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:28,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:28,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-21 12:18:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:28,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:28,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:28,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:28,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:28,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:28,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:28,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:28,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:28,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:28,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:28,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:28,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569043550] [2020-09-21 12:18:28,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:28,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:18:28,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287221524] [2020-09-21 12:18:28,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:18:28,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:28,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:18:28,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:18:28,206 INFO L87 Difference]: Start difference. First operand 212 states and 246 transitions. Second operand 9 states. [2020-09-21 12:18:29,498 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:29,805 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:18:30,146 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:30,469 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:18:31,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:31,360 INFO L93 Difference]: Finished difference Result 449 states and 566 transitions. [2020-09-21 12:18:31,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:18:31,360 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2020-09-21 12:18:31,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:31,364 INFO L225 Difference]: With dead ends: 449 [2020-09-21 12:18:31,364 INFO L226 Difference]: Without dead ends: 265 [2020-09-21 12:18:31,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 12:18:31,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-21 12:18:31,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 223. [2020-09-21 12:18:31,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-09-21 12:18:31,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 259 transitions. [2020-09-21 12:18:31,417 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 259 transitions. Word has length 108 [2020-09-21 12:18:31,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:31,418 INFO L479 AbstractCegarLoop]: Abstraction has 223 states and 259 transitions. [2020-09-21 12:18:31,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:18:31,418 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 259 transitions. [2020-09-21 12:18:31,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-21 12:18:31,420 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:31,420 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:18:31,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:18:31,420 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:31,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:31,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1570518214, now seen corresponding path program 1 times [2020-09-21 12:18:31,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:31,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507576925] [2020-09-21 12:18:31,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:31,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-21 12:18:32,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 623 [2020-09-21 12:18:32,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:32,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-09-21 12:18:32,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:32,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:32,421 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:32,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:32,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 12:18:32,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:32,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:32,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:32,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:32,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:32,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:32,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:32,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:32,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:32,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:32,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:18:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:32,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:32,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:32,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:32,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 12:18:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 12:18:32,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-21 12:18:32,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:32,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:18:32,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:32,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:18:32,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 12:18:32,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:32,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:18:32,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:32,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:32,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 12:18:32,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 12:18:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:32,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:32,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:32,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:32,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:18:32,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:32,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:18:32,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:18:32,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 12:18:32,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:18:32,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:32,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:32,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:32,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:32,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:32,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:32,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-21 12:18:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:32,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:32,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-21 12:18:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:32,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:32,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:32,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:32,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:32,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:32,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:32,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:32,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:32,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507576925] [2020-09-21 12:18:32,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:32,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:18:32,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49917038] [2020-09-21 12:18:32,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:18:32,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:32,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:18:32,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:18:32,879 INFO L87 Difference]: Start difference. First operand 223 states and 259 transitions. Second operand 8 states. [2020-09-21 12:18:34,055 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:34,420 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:34,735 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:35,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:35,660 INFO L93 Difference]: Finished difference Result 465 states and 584 transitions. [2020-09-21 12:18:35,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:18:35,663 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2020-09-21 12:18:35,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:35,666 INFO L225 Difference]: With dead ends: 465 [2020-09-21 12:18:35,666 INFO L226 Difference]: Without dead ends: 270 [2020-09-21 12:18:35,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:18:35,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-21 12:18:35,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 227. [2020-09-21 12:18:35,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-21 12:18:35,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 263 transitions. [2020-09-21 12:18:35,737 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 263 transitions. Word has length 108 [2020-09-21 12:18:35,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:35,737 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 263 transitions. [2020-09-21 12:18:35,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:18:35,738 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 263 transitions. [2020-09-21 12:18:35,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-21 12:18:35,739 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:35,740 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:18:35,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:18:35,740 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:35,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:35,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1329978085, now seen corresponding path program 1 times [2020-09-21 12:18:35,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:35,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7107530] [2020-09-21 12:18:35,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:35,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:36,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:36,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-21 12:18:36,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:36,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1049 [2020-09-21 12:18:36,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:36,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:18:36,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:36,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 12:18:36,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:37,215 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:37,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:37,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-21 12:18:37,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:37,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:37,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:18:37,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:37,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:37,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:37,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:37,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:37,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:18:37,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:37,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:37,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:37,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:37,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:37,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:18:37,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:37,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:37,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:18:37,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:37,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:37,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:37,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:37,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:37,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:18:37,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:37,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:37,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:18:37,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:37,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:37,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:37,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:37,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:37,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:37,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:37,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:18:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:37,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:37,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:37,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:37,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:18:37,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:37,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:37,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:37,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:37,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:37,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:37,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:37,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 12:18:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 12:18:37,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 12:18:37,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:37,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:18:37,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:18:37,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:37,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:18:37,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 12:18:37,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:37,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:37,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:18:37,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:37,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:37,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:18:37,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:37,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:37,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:18:37,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:37,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:37,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:37,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:37,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:37,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:18:37,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:37,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:18:37,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 12:18:37,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:37,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:37,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 12:18:37,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:37,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:18:37,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:37,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:37,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:37,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:37,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:37,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:37,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:37,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:37,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:37,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:37,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:37,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:37,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:37,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:37,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:37,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:37,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:37,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-21 12:18:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:37,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:37,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:37,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:37,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:37,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:37,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-21 12:18:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:37,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:37,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:37,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:37,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:37,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:18:37,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:37,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:37,749 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:37,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7107530] [2020-09-21 12:18:37,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:37,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:18:37,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846913260] [2020-09-21 12:18:37,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:18:37,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:37,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:18:37,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:18:37,755 INFO L87 Difference]: Start difference. First operand 227 states and 263 transitions. Second operand 7 states. [2020-09-21 12:18:38,231 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:38,876 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:41,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:41,218 INFO L93 Difference]: Finished difference Result 660 states and 840 transitions. [2020-09-21 12:18:41,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 12:18:41,219 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-09-21 12:18:41,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:41,225 INFO L225 Difference]: With dead ends: 660 [2020-09-21 12:18:41,225 INFO L226 Difference]: Without dead ends: 461 [2020-09-21 12:18:41,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-21 12:18:41,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2020-09-21 12:18:41,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 419. [2020-09-21 12:18:41,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-09-21 12:18:41,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 500 transitions. [2020-09-21 12:18:41,317 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 500 transitions. Word has length 108 [2020-09-21 12:18:41,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:41,318 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 500 transitions. [2020-09-21 12:18:41,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:18:41,318 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 500 transitions. [2020-09-21 12:18:41,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-21 12:18:41,320 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:41,320 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:18:41,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:18:41,321 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:41,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:41,321 INFO L82 PathProgramCache]: Analyzing trace with hash 825673247, now seen corresponding path program 1 times [2020-09-21 12:18:41,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:41,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126772803] [2020-09-21 12:18:41,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-21 12:18:42,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:18:42,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-09-21 12:18:42,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:18:42,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-21 12:18:42,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-21 12:18:42,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,791 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:42,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:42,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 12:18:42,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:42,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:42,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:42,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:42,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:42,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:42,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:42,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:42,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:42,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:42,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:42,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:42,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:42,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:42,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:42,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:18:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:42,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:42,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:42,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:18:42,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:42,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:18:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:42,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:42,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:42,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:18:42,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:42,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:42,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:42,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:42,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-09-21 12:18:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:43,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:43,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 12:18:43,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:43,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-21 12:18:43,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:43,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:18:43,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:43,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-21 12:18:43,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:43,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:43,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:43,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:43,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:18:43,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:43,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 12:18:43,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:43,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:43,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:43,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:18:43,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:43,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:43,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:43,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:43,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:43,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:43,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:18:43,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:43,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:43,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:43,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:18:43,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:43,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:43,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:43,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:43,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:43,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:43,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:43,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:43,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:43,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:43,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:18:43,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:43,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:43,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:43,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:43,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:18:43,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:43,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:18:43,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:43,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:43,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:43,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 12:18:43,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:43,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:43,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:43,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:43,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:18:43,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:43,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:43,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:43,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:43,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:43,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:43,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:43,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:43,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:43,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:43,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:43,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:43,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:43,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:43,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:43,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:43,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:43,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:43,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:43,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:43,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:43,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:43,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:43,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:43,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:43,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:43,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:43,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:43,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:43,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 12:18:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:43,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:43,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:43,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:43,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:43,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:18:43,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:43,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:43,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:43,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:43,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:43,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-21 12:18:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:43,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:43,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:43,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:43,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:43,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:43,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:43,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:43,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:43,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:43,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:43,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:43,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126772803] [2020-09-21 12:18:43,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:43,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 12:18:43,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049427168] [2020-09-21 12:18:43,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 12:18:43,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:43,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 12:18:43,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:18:43,251 INFO L87 Difference]: Start difference. First operand 419 states and 500 transitions. Second operand 12 states. [2020-09-21 12:18:43,906 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:45,072 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:45,470 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:45,910 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:46,889 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:18:47,296 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-21 12:18:47,634 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:18:49,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:49,334 INFO L93 Difference]: Finished difference Result 849 states and 1081 transitions. [2020-09-21 12:18:49,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-21 12:18:49,335 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 112 [2020-09-21 12:18:49,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:49,340 INFO L225 Difference]: With dead ends: 849 [2020-09-21 12:18:49,340 INFO L226 Difference]: Without dead ends: 532 [2020-09-21 12:18:49,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2020-09-21 12:18:49,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2020-09-21 12:18:49,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 469. [2020-09-21 12:18:49,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-09-21 12:18:49,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 565 transitions. [2020-09-21 12:18:49,427 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 565 transitions. Word has length 112 [2020-09-21 12:18:49,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:49,427 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 565 transitions. [2020-09-21 12:18:49,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 12:18:49,428 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 565 transitions. [2020-09-21 12:18:49,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-21 12:18:49,430 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:49,431 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:18:49,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:18:49,431 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:49,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:49,432 INFO L82 PathProgramCache]: Analyzing trace with hash 700336053, now seen corresponding path program 1 times [2020-09-21 12:18:49,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:49,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8378380] [2020-09-21 12:18:49,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:49,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:49,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:50,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:50,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-21 12:18:50,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:18:50,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-09-21 12:18:50,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:50,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:50,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-21 12:18:50,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-21 12:18:50,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:50,788 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:50,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:50,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:50,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:50,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:50,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:50,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 12:18:50,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:50,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:50,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:50,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:50,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:50,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:50,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:50,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:50,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:50,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:50,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:50,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:50,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:50,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:50,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:50,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:50,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:50,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:50,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:50,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:50,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:50,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:50,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:50,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:50,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:50,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:50,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:50,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:50,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:50,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:50,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:50,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:50,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:50,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:50,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:50,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:50,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:50,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:50,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:50,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:50,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:50,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:50,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:50,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:50,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:50,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:50,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:50,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:50,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:50,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:50,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:50,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:50,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:50,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:50,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:50,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:50,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:50,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:50,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:50,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:50,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:18:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:50,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:50,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:50,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:50,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:50,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:50,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:50,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:50,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:50,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:50,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:50,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 12:18:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:50,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:50,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:50,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 12:18:50,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:50,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 12:18:50,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:50,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:50,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:50,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 12:18:50,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:50,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:51,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:18:51,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:51,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:51,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:51,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:51,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:18:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:18:51,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:18:51,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:51,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:18:51,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:51,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:51,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:51,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:51,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-21 12:18:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:51,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:18:51,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:51,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:51,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:51,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 12:18:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-21 12:18:51,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 12:18:51,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:51,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 12:18:51,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:18:51,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:51,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:51,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:51,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:51,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:51,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:51,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:51,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:18:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 12:18:51,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 12:18:51,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:51,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-21 12:18:51,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:51,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:18:51,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:18:51,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:51,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:51,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:18:51,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:51,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:51,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:51,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:51,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:18:51,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:18:51,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:51,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:18:51,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:51,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:51,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:51,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:51,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:51,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:51,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:51,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:51,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 12:18:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:18:51,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:18:51,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:18:51,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:51,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:51,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:51,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:51,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-21 12:18:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:51,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:51,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:18:51,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:51,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:51,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:51,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:51,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:51,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-21 12:18:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:51,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:51,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:51,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:51,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-21 12:18:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:51,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:51,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:51,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:51,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-09-21 12:18:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:51,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:51,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:51,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:51,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:51,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:51,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:51,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:51,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:51,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:51,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:51,536 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 47 proven. 3 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-09-21 12:18:51,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8378380] [2020-09-21 12:18:51,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:18:51,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 12:18:51,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199150077] [2020-09-21 12:18:51,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:18:51,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:51,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:18:51,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:18:51,540 INFO L87 Difference]: Start difference. First operand 469 states and 565 transitions. Second operand 9 states. [2020-09-21 12:18:51,958 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:53,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:53,503 INFO L93 Difference]: Finished difference Result 933 states and 1165 transitions. [2020-09-21 12:18:53,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 12:18:53,504 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 184 [2020-09-21 12:18:53,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:53,507 INFO L225 Difference]: With dead ends: 933 [2020-09-21 12:18:53,508 INFO L226 Difference]: Without dead ends: 492 [2020-09-21 12:18:53,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-09-21 12:18:53,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-09-21 12:18:53,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 426. [2020-09-21 12:18:53,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-09-21 12:18:53,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 507 transitions. [2020-09-21 12:18:53,579 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 507 transitions. Word has length 184 [2020-09-21 12:18:53,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:53,579 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 507 transitions. [2020-09-21 12:18:53,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:18:53,579 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 507 transitions. [2020-09-21 12:18:53,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-21 12:18:53,582 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:53,583 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:18:53,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:18:53,583 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:53,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:53,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1258980138, now seen corresponding path program 1 times [2020-09-21 12:18:53,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:53,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482239947] [2020-09-21 12:18:53,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:53,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:54,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:54,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:54,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:54,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-21 12:18:54,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:18:54,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1023 [2020-09-21 12:18:54,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:18:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-09-21 12:18:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-21 12:18:54,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:54,955 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:54,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:54,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:55,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 12:18:55,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:55,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:55,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:55,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:55,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:55,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:55,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:55,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:55,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:55,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:55,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:18:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:55,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:55,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 12:18:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-21 12:18:55,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 12:18:55,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:55,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:55,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:55,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:55,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:18:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 12:18:55,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:18:55,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:18:55,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:18:55,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:55,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:55,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:18:55,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:55,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:55,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:18:55,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:18:55,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:18:55,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:55,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:55,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:55,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:55,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:55,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:55,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 12:18:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:18:55,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:55,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:55,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:55,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:55,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-21 12:18:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:55,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:18:55,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:55,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:18:55,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:55,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:18:55,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:18:55,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:18:55,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-21 12:18:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:55,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:18:55,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:55,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:55,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-21 12:18:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 12:18:55,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 12:18:55,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:55,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-21 12:18:55,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:18:55,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:55,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:55,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:55,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 12:18:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:55,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:55,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:55,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:55,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:55,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:55,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 12:18:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:55,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:55,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:55,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:55,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-21 12:18:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:55,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:55,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:55,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:55,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:55,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:55,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:55,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:55,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:55,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:55,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-09-21 12:18:55,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482239947] [2020-09-21 12:18:55,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:18:55,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 12:18:55,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128900971] [2020-09-21 12:18:55,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 12:18:55,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:55,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 12:18:55,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:18:55,571 INFO L87 Difference]: Start difference. First operand 426 states and 507 transitions. Second operand 12 states. [2020-09-21 12:18:56,037 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-21 12:18:56,869 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:57,195 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:58,126 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-21 12:18:59,017 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-21 12:18:59,458 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-21 12:19:00,509 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-09-21 12:19:01,256 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:19:01,699 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 202