/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:32:41,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:32:41,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:32:41,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:32:41,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:32:41,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:32:41,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:32:41,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:32:41,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:32:41,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:32:41,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:32:41,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:32:41,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:32:41,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:32:41,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:32:41,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:32:41,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:32:41,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:32:41,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:32:41,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:32:41,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:32:41,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:32:41,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:32:41,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:32:41,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:32:41,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:32:41,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:32:41,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:32:41,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:32:41,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:32:41,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:32:41,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:32:41,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:32:41,328 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:32:41,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:32:41,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:32:41,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:32:41,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:32:41,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:32:41,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:32:41,334 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:32:41,335 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 22:32:41,379 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:32:41,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:32:41,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:32:41,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:32:41,381 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:32:41,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:32:41,382 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:32:41,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:32:41,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:32:41,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:32:41,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:32:41,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:32:41,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:32:41,385 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:32:41,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:32:41,385 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:32:41,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:32:41,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:32:41,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:32:41,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:32:41,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:32:41,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:32:41,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:32:41,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:32:41,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:32:41,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:32:41,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:32:41,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:32:41,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:32:41,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:32:41,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:32:41,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:32:41,884 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:32:41,886 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:32:41,887 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:32:41,888 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2020-09-24 22:32:42,001 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0fa159796/e259988008284a94813e50132f64ee11/FLAGee312cbba [2020-09-24 22:32:42,618 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:32:42,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2020-09-24 22:32:42,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0fa159796/e259988008284a94813e50132f64ee11/FLAGee312cbba [2020-09-24 22:32:42,921 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0fa159796/e259988008284a94813e50132f64ee11 [2020-09-24 22:32:42,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:32:42,940 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:32:42,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:32:42,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:32:42,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:32:42,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:32:42" (1/1) ... [2020-09-24 22:32:42,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@694adced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:42, skipping insertion in model container [2020-09-24 22:32:42,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:32:42" (1/1) ... [2020-09-24 22:32:42,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:32:43,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:32:43,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:32:43,583 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:32:43,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:32:43,748 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:32:43,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:43 WrapperNode [2020-09-24 22:32:43,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:32:43,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:32:43,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:32:43,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:32:43,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:43" (1/1) ... [2020-09-24 22:32:43,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:43" (1/1) ... [2020-09-24 22:32:43,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:43" (1/1) ... [2020-09-24 22:32:43,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:43" (1/1) ... [2020-09-24 22:32:43,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:43" (1/1) ... [2020-09-24 22:32:43,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:43" (1/1) ... [2020-09-24 22:32:43,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:43" (1/1) ... [2020-09-24 22:32:43,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:32:43,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:32:43,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:32:43,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:32:43,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:32:43,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:32:43,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:32:43,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:32:43,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:32:43,948 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:32:43,948 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:32:43,948 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:32:43,948 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:32:43,949 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 22:32:43,949 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:32:43,950 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 22:32:43,950 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:32:43,950 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:32:43,950 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:32:43,950 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:32:43,951 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:32:43,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:32:43,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 22:32:43,952 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:32:43,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 22:32:43,953 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:32:43,953 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:32:43,953 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:32:43,953 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:32:43,954 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:32:43,954 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:32:43,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:32:43,955 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:32:43,955 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:32:43,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:32:43,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:32:43,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:32:43,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:32:43,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:32:43,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:32:43,956 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:32:43,956 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:32:43,956 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:32:43,956 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:32:43,957 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:32:43,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:32:43,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:32:43,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 22:32:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:32:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:32:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:32:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:32:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:32:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:32:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:32:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:32:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:32:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:32:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:32:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:32:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:32:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:32:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 22:32:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:32:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:32:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:32:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:32:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 22:32:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:32:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:32:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:32:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:32:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 22:32:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 22:32:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:32:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 22:32:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:32:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:32:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:32:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:32:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:32:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:32:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:32:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:32:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:32:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:32:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:32:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:32:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:32:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:32:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:32:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:32:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:32:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:32:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:32:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:32:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:32:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:32:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:32:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:32:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:32:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:32:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:32:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:32:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:32:45,251 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:32:45,251 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:32:45,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:32:45 BoogieIcfgContainer [2020-09-24 22:32:45,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:32:45,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:32:45,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:32:45,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:32:45,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:32:42" (1/3) ... [2020-09-24 22:32:45,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecd3549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:32:45, skipping insertion in model container [2020-09-24 22:32:45,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:43" (2/3) ... [2020-09-24 22:32:45,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecd3549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:32:45, skipping insertion in model container [2020-09-24 22:32:45,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:32:45" (3/3) ... [2020-09-24 22:32:45,270 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product62.cil.c [2020-09-24 22:32:45,282 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:32:45,295 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:32:45,319 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:32:45,355 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:32:45,356 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:32:45,356 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:32:45,356 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:32:45,356 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:32:45,356 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:32:45,356 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:32:45,357 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:32:45,385 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-24 22:32:45,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 22:32:45,403 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:32:45,404 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:32:45,405 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:32:45,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:32:45,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1052921660, now seen corresponding path program 1 times [2020-09-24 22:32:45,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:32:45,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832739614] [2020-09-24 22:32:45,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:32:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:46,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:46,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:47,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:48,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:50,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:50,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 22:32:50,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:32:50,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-24 22:32:50,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:32:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 22:32:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:32:50,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 22:32:51,287 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:32:51,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:32:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:51,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:51,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:51,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:32:51,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:51,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-24 22:32:51,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:51,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:51,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:51,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:51,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:32:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:51,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:51,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:51,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:51,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:51,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:51,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:51,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:51,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:51,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:51,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:51,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:32:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:51,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:51,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:51,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:51,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:51,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:51,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:51,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:51,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:51,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:51,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:51,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:32:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:51,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:51,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:51,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:51,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:51,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:51,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:51,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:51,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:32:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:51,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:51,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:51,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:51,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:51,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:51,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:51,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:51,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:51,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:51,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:51,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:32:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:51,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:51,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:51,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:51,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:51,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:32:51,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:51,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:32:51,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:51,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:32:51,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:51,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 22:32:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:51,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:51,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:51,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:51,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:51,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:32:51,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:51,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:51,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:51,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:32:51,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:51,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:32:51,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832739614] [2020-09-24 22:32:51,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:32:51,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:32:51,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475420032] [2020-09-24 22:32:51,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:32:51,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:32:51,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:32:51,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:32:51,664 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 8 states. [2020-09-24 22:32:52,318 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:32:53,594 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:32:53,910 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:32:54,244 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:54,642 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:32:54,976 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:56,047 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:32:56,378 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:32:56,757 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:32:58,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:32:58,268 INFO L93 Difference]: Finished difference Result 704 states and 866 transitions. [2020-09-24 22:32:58,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:32:58,271 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 22:32:58,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:32:58,296 INFO L225 Difference]: With dead ends: 704 [2020-09-24 22:32:58,297 INFO L226 Difference]: Without dead ends: 465 [2020-09-24 22:32:58,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:32:58,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-09-24 22:32:58,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 422. [2020-09-24 22:32:58,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-09-24 22:32:58,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 480 transitions. [2020-09-24 22:32:58,453 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 480 transitions. Word has length 142 [2020-09-24 22:32:58,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:32:58,454 INFO L479 AbstractCegarLoop]: Abstraction has 422 states and 480 transitions. [2020-09-24 22:32:58,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:32:58,454 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 480 transitions. [2020-09-24 22:32:58,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 22:32:58,460 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:32:58,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:32:58,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:32:58,461 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:32:58,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:32:58,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1908721230, now seen corresponding path program 1 times [2020-09-24 22:32:58,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:32:58,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [822108419] [2020-09-24 22:32:58,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:32:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:58,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:58,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:59,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:03,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:03,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 22:33:03,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:33:03,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 22:33:03,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:03,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:33:03,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-24 22:33:03,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:33:03,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:03,901 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:33:03,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:33:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:03,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:04,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:04,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:33:04,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:04,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 22:33:04,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:04,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:04,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:04,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:04,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:04,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:33:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:04,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:04,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:04,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:04,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:04,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:04,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:04,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:04,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:04,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:04,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:33:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:04,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:04,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:04,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:04,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:04,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:04,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:04,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:04,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:04,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:04,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:04,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:33:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:04,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:04,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:04,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:04,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:04,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:33:04,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:04,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:04,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:04,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:04,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:33:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:04,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:04,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:04,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:04,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:04,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:04,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:04,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:04,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:04,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:04,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:04,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 22:33:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:04,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:04,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:04,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:33:04,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:04,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-09-24 22:33:04,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:04,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:33:04,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 22:33:04,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:33:04,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:04,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:04,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:04,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:04,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 22:33:04,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:04,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 22:33:04,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:04,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:33:04,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 22:33:04,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:33:04,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:04,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:04,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:04,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:04,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 22:33:04,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:04,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 22:33:04,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:04,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:33:04,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:33:04,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:33:04,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:04,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:04,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:04,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:04,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:33:04,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:04,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 22:33:04,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:04,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:33:04,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:04,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:33:04,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:04,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:33:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:04,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:04,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:04,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:33:04,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:04,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:33:04,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:04,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:04,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:04,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:04,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:04,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:33:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:04,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:04,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:04,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 22:33:04,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:04,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:33:04,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:04,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:04,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 22:33:04,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:04,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:04,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:33:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:04,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:04,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:04,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 22:33:04,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:04,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:04,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:04,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:04,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:04,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:04,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:04,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:33:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:04,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:04,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:04,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:04,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:04,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:04,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:04,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:04,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:04,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:04,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:04,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 22:33:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:04,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:04,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:04,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:33:04,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:04,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:04,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:04,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:04,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 22:33:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:04,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:04,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:04,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:04,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:04,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:04,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:04,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:04,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:33:04,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:04,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:04,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-09-24 22:33:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:04,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:04,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:04,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:04,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:04,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:04,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:04,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:04,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:33:04,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:04,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:33:04,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [822108419] [2020-09-24 22:33:04,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:33:04,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:33:04,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108858042] [2020-09-24 22:33:04,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:33:04,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:33:04,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:33:04,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:33:04,788 INFO L87 Difference]: Start difference. First operand 422 states and 480 transitions. Second operand 9 states. [2020-09-24 22:33:06,373 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:33:06,674 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:33:06,983 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:33:07,306 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:33:07,662 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:33:07,941 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:33:09,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:33:09,415 INFO L93 Difference]: Finished difference Result 824 states and 1029 transitions. [2020-09-24 22:33:09,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:33:09,416 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 208 [2020-09-24 22:33:09,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:33:09,432 INFO L225 Difference]: With dead ends: 824 [2020-09-24 22:33:09,432 INFO L226 Difference]: Without dead ends: 512 [2020-09-24 22:33:09,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:33:09,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2020-09-24 22:33:09,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 430. [2020-09-24 22:33:09,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-09-24 22:33:09,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 488 transitions. [2020-09-24 22:33:09,534 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 488 transitions. Word has length 208 [2020-09-24 22:33:09,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:33:09,535 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 488 transitions. [2020-09-24 22:33:09,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:33:09,535 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 488 transitions. [2020-09-24 22:33:09,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-24 22:33:09,539 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:33:09,539 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:33:09,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:33:09,540 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:33:09,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:33:09,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1845635549, now seen corresponding path program 1 times [2020-09-24 22:33:09,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:33:09,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179429466] [2020-09-24 22:33:09,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:33:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:09,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:09,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:09,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:09,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:14,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:14,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-09-24 22:33:14,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:33:14,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5102 [2020-09-24 22:33:14,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:14,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:33:14,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-09-24 22:33:14,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:33:14,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,056 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:33:15,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:33:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:33:15,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 22:33:15,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:33:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:15,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:15,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:33:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:15,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:15,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:33:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:15,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:33:15,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:33:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:15,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:15,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 22:33:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:33:15,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:33:15,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 22:33:15,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:33:15,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:15,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:15,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:33:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:33:15,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 22:33:15,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:33:15,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 22:33:15,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:33:15,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 22:33:15,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 22:33:15,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:33:15,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 22:33:15,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:33:15,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 22:33:15,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 22:33:15,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:33:15,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:33:15,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:33:15,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:33:15,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 22:33:15,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:33:15,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:33:15,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:33:15,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:33:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:33:15,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:33:15,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:33:15,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:33:15,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:33:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 22:33:15,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:33:15,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 22:33:15,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:33:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 22:33:15,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:33:15,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:33:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:15,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:33:15,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 22:33:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:33:15,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:15,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:15,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-09-24 22:33:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:15,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:15,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:33:15,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:15,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-09-24 22:33:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:15,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:15,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:33:15,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:15,966 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 22:33:15,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179429466] [2020-09-24 22:33:15,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:33:15,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 22:33:15,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196686899] [2020-09-24 22:33:15,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:33:15,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:33:15,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:33:15,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:33:15,972 INFO L87 Difference]: Start difference. First operand 430 states and 488 transitions. Second operand 9 states. [2020-09-24 22:33:17,152 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:33:17,411 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:33:17,703 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:33:18,057 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:33:18,336 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:33:19,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:33:19,819 INFO L93 Difference]: Finished difference Result 864 states and 1082 transitions. [2020-09-24 22:33:19,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:33:19,827 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 232 [2020-09-24 22:33:19,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:33:19,833 INFO L225 Difference]: With dead ends: 864 [2020-09-24 22:33:19,833 INFO L226 Difference]: Without dead ends: 544 [2020-09-24 22:33:19,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-09-24 22:33:19,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2020-09-24 22:33:19,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 436. [2020-09-24 22:33:19,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2020-09-24 22:33:19,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 494 transitions. [2020-09-24 22:33:19,898 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 494 transitions. Word has length 232 [2020-09-24 22:33:19,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:33:19,898 INFO L479 AbstractCegarLoop]: Abstraction has 436 states and 494 transitions. [2020-09-24 22:33:19,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:33:19,899 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 494 transitions. [2020-09-24 22:33:19,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-24 22:33:19,902 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:33:19,902 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:33:19,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:33:19,903 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:33:19,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:33:19,903 INFO L82 PathProgramCache]: Analyzing trace with hash -780208442, now seen corresponding path program 1 times [2020-09-24 22:33:19,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:33:19,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [792311073] [2020-09-24 22:33:19,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:33:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:20,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:20,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:20,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:20,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:24,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:24,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-09-24 22:33:24,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:33:24,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 22:33:24,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:24,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:33:24,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-24 22:33:24,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:33:24,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:25,297 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:33:25,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:33:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:33:25,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 22:33:25,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:25,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:25,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:33:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:25,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:25,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:25,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:25,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:33:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:25,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:25,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:25,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:25,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:33:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:25,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:33:25,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:25,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:25,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:33:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:25,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:25,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:25,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:25,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 22:33:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:33:25,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:33:25,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:33:25,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:25,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:33:25,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:25,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 22:33:25,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:33:25,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:33:25,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:25,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 22:33:25,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:25,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:25,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:25,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:25,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:33:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:33:25,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 22:33:25,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 22:33:25,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:25,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 22:33:25,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 22:33:25,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:25,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:25,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 22:33:25,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 22:33:25,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:25,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:25,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:33:25,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:33:25,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:25,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:25,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:33:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:33:25,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:33:25,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:25,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:25,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:33:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 22:33:25,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:33:25,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:25,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:25,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:33:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 22:33:25,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:25,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:25,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:25,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:33:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:25,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:25,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:25,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:25,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 22:33:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:33:25,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:33:25,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:25,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:25,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-09-24 22:33:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:25,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:25,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:33:25,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:25,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-09-24 22:33:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:25,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:25,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:25,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:25,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:25,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:25,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:25,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:25,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:33:25,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:25,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:25,903 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 22:33:25,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [792311073] [2020-09-24 22:33:25,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:33:25,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 22:33:25,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183383959] [2020-09-24 22:33:25,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:33:25,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:33:25,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:33:25,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:33:25,907 INFO L87 Difference]: Start difference. First operand 436 states and 494 transitions. Second operand 6 states. [2020-09-24 22:33:26,841 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:33:29,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:33:29,416 INFO L93 Difference]: Finished difference Result 1115 states and 1416 transitions. [2020-09-24 22:33:29,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 22:33:29,417 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 232 [2020-09-24 22:33:29,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:33:29,425 INFO L225 Difference]: With dead ends: 1115 [2020-09-24 22:33:29,425 INFO L226 Difference]: Without dead ends: 766 [2020-09-24 22:33:29,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:33:29,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2020-09-24 22:33:29,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 569. [2020-09-24 22:33:29,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2020-09-24 22:33:29,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 653 transitions. [2020-09-24 22:33:29,500 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 653 transitions. Word has length 232 [2020-09-24 22:33:29,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:33:29,501 INFO L479 AbstractCegarLoop]: Abstraction has 569 states and 653 transitions. [2020-09-24 22:33:29,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:33:29,501 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 653 transitions. [2020-09-24 22:33:29,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 22:33:29,504 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:33:29,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:33:29,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:33:29,505 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:33:29,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:33:29,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1617992203, now seen corresponding path program 1 times [2020-09-24 22:33:29,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:33:29,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106146355] [2020-09-24 22:33:29,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY