/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:59:27,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:59:27,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:59:27,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:59:27,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:59:27,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:59:27,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:59:27,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:59:27,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:59:27,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:59:27,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:59:27,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:59:27,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:59:27,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:59:27,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:59:27,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:59:27,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:59:27,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:59:27,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:59:27,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:59:27,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:59:27,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:59:27,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:59:27,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:59:27,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:59:27,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:59:27,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:59:27,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:59:27,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:59:27,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:59:27,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:59:27,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:59:27,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:59:27,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:59:27,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:59:27,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:59:27,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:59:27,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:59:27,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:59:27,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:59:27,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:59:27,281 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 10:59:27,329 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:59:27,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:59:27,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:59:27,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:59:27,332 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:59:27,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:59:27,333 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:59:27,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:59:27,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:59:27,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:59:27,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:59:27,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:59:27,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:59:27,335 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:59:27,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:59:27,336 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:59:27,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:59:27,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:59:27,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:59:27,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:59:27,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:59:27,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:59:27,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:59:27,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:59:27,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:59:27,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:59:27,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:59:27,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:59:27,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:59:27,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:59:27,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:59:27,805 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:59:27,810 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:59:27,812 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:59:27,813 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:59:27,814 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-09-25 10:59:27,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b615ea8d1/a463e78d43e141f2b4fcd0d9ab4f310b/FLAG7cf66ad5f [2020-09-25 10:59:28,554 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:59:28,555 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-09-25 10:59:28,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b615ea8d1/a463e78d43e141f2b4fcd0d9ab4f310b/FLAG7cf66ad5f [2020-09-25 10:59:28,803 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b615ea8d1/a463e78d43e141f2b4fcd0d9ab4f310b [2020-09-25 10:59:28,818 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:59:28,824 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:59:28,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:59:28,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:59:28,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:59:28,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:59:28" (1/1) ... [2020-09-25 10:59:28,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:28, skipping insertion in model container [2020-09-25 10:59:28,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:59:28" (1/1) ... [2020-09-25 10:59:28,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:59:28,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:59:29,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:59:29,442 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:59:29,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:59:29,575 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:59:29,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:29 WrapperNode [2020-09-25 10:59:29,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:59:29,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:59:29,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:59:29,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:59:29,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:29" (1/1) ... [2020-09-25 10:59:29,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:29" (1/1) ... [2020-09-25 10:59:29,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:29" (1/1) ... [2020-09-25 10:59:29,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:29" (1/1) ... [2020-09-25 10:59:29,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:29" (1/1) ... [2020-09-25 10:59:29,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:29" (1/1) ... [2020-09-25 10:59:29,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:29" (1/1) ... [2020-09-25 10:59:29,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:59:29,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:59:29,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:59:29,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:59:29,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:59:29,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:59:29,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:59:29,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:59:29,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:59:29,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:59:29,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:59:29,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:59:29,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:59:29,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:59:29,821 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:59:29,821 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:59:29,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:59:29,822 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:59:29,822 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:59:29,822 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:59:29,823 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:59:29,823 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:59:29,823 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:59:29,824 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:59:29,824 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:59:29,824 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:59:29,825 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:59:29,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:59:29,825 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:59:29,825 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:59:29,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 10:59:29,826 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:59:29,826 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:59:29,826 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:59:29,827 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:59:29,827 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:59:29,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:59:29,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:59:29,827 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:59:29,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 10:59:29,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:59:29,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 10:59:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:59:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:59:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:59:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:59:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:59:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:59:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:59:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:59:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:59:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:59:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:59:29,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:59:29,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:59:29,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:59:29,830 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:59:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:59:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:59:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:59:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:59:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:59:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:59:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:59:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:59:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:59:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:59:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:59:29,833 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:59:29,833 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:59:29,833 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:59:29,833 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:59:29,833 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:59:29,834 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:59:29,834 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:59:29,834 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:59:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:59:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:59:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:59:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:59:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 10:59:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:59:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:59:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:59:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 10:59:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:59:29,838 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:59:29,838 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 10:59:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:59:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:59:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:59:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:59:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:59:31,037 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:59:31,038 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:59:31,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:59:31 BoogieIcfgContainer [2020-09-25 10:59:31,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:59:31,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:59:31,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:59:31,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:59:31,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:59:28" (1/3) ... [2020-09-25 10:59:31,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47342f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:59:31, skipping insertion in model container [2020-09-25 10:59:31,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:29" (2/3) ... [2020-09-25 10:59:31,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47342f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:59:31, skipping insertion in model container [2020-09-25 10:59:31,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:59:31" (3/3) ... [2020-09-25 10:59:31,061 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2020-09-25 10:59:31,073 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:59:31,086 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:59:31,111 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:59:31,157 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:59:31,158 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:59:31,158 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:59:31,159 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:59:31,159 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:59:31,159 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:59:31,159 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:59:31,159 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:59:31,203 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states. [2020-09-25 10:59:31,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 10:59:31,233 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:31,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:59:31,235 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:31,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:31,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1598852952, now seen corresponding path program 1 times [2020-09-25 10:59:31,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:31,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771579447] [2020-09-25 10:59:31,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:31,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:32,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:32,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:33,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:34,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:36,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:36,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 10:59:36,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:59:36,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 10:59:36,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:36,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:36,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:59:36,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 10:59:36,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 10:59:36,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 10:59:37,255 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:37,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:59:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:37,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:37,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:37,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:59:37,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:37,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-09-25 10:59:37,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:37,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:37,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:37,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:37,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:59:37,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 10:59:37,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:59:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:37,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:37,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:37,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:37,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:37,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:59:37,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:37,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:37,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:37,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:37,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:37,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:37,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:59:37,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:37,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:37,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:37,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:37,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:37,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:59:37,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:37,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:37,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:37,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:37,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:37,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:37,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:59:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:37,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:37,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:37,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:37,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:37,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 10:59:37,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:37,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:37,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:37,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:37,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:37,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:37,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:59:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:37,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:37,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:37,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:37,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:37,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:59:37,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:37,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:37,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:37,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:37,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:59:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:37,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:37,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:37,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:37,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:37,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:59:37,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:37,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:37,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:37,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:37,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:37,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:37,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 10:59:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:37,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:38,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:38,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:38,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:38,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 10:59:38,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:38,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:38,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:59:38,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:38,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:38,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:38,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:59:38,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771579447] [2020-09-25 10:59:38,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:59:38,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:59:38,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423883183] [2020-09-25 10:59:38,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:59:38,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:59:38,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:59:38,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:59:38,268 INFO L87 Difference]: Start difference. First operand 278 states. Second operand 8 states. [2020-09-25 10:59:38,883 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:59:40,167 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:40,507 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:59:40,900 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:41,255 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:59:41,574 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:42,252 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:59:42,580 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:42,967 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:59:43,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:59:43,942 INFO L93 Difference]: Finished difference Result 524 states and 656 transitions. [2020-09-25 10:59:43,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 10:59:43,945 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 10:59:43,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:59:43,966 INFO L225 Difference]: With dead ends: 524 [2020-09-25 10:59:43,966 INFO L226 Difference]: Without dead ends: 357 [2020-09-25 10:59:43,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 10:59:43,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-09-25 10:59:44,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 315. [2020-09-25 10:59:44,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2020-09-25 10:59:44,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 361 transitions. [2020-09-25 10:59:44,104 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 361 transitions. Word has length 142 [2020-09-25 10:59:44,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:59:44,105 INFO L479 AbstractCegarLoop]: Abstraction has 315 states and 361 transitions. [2020-09-25 10:59:44,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:59:44,105 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 361 transitions. [2020-09-25 10:59:44,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-25 10:59:44,111 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:44,112 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] [2020-09-25 10:59:44,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:59:44,112 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:44,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:44,113 INFO L82 PathProgramCache]: Analyzing trace with hash 612941210, now seen corresponding path program 1 times [2020-09-25 10:59:44,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:44,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207585941] [2020-09-25 10:59:44,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:44,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:44,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:49,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:49,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-25 10:59:49,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:59:49,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 10:59:49,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:49,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:49,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 10:59:49,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 10:59:49,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-25 10:59:49,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:49,574 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:49,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:59:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:49,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:49,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:49,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:59:49,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:49,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 10:59:49,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:49,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:49,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:49,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:49,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:59:49,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:49,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:59:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:49,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:49,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:49,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:49,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:49,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:59:49,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:49,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:49,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:49,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:49,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:49,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:49,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:59:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:49,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:49,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:49,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:49,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:49,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:59:49,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:49,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:49,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:49,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:49,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:49,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:49,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:59:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:49,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:49,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:49,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:49,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:49,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:59:49,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:49,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:49,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:49,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:49,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:49,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:49,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:59:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:49,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:49,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:49,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:49,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:49,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:49,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:49,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:49,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:49,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:49,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:49,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:49,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 10:59:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:49,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 10:59:50,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:59:50,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 10:59:50,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:50,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:50,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 10:59:50,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:50,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:59:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:50,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:59:50,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:50,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:59:50,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:50,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:50,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:50,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:59:50,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:59:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:50,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:59:50,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:50,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:59:50,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:50,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:50,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:50,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 10:59:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:50,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:59:50,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:50,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:50,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:50,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:50,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:50,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:50,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 10:59:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:50,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:50,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:50,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 10:59:50,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:59:50,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:50,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:50,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:50,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-25 10:59:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:50,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:50,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:50,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:50,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:50,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:50,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:50,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:50,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:59:50,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207585941] [2020-09-25 10:59:50,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:59:50,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 10:59:50,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372031546] [2020-09-25 10:59:50,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 10:59:50,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:59:50,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 10:59:50,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:59:50,314 INFO L87 Difference]: Start difference. First operand 315 states and 361 transitions. Second operand 9 states. [2020-09-25 10:59:50,880 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:51,775 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:52,105 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:52,419 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:52,724 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:53,048 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:53,919 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:54,227 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:55,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:59:55,743 INFO L93 Difference]: Finished difference Result 766 states and 1034 transitions. [2020-09-25 10:59:55,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 10:59:55,746 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 185 [2020-09-25 10:59:55,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:59:55,756 INFO L225 Difference]: With dead ends: 766 [2020-09-25 10:59:55,756 INFO L226 Difference]: Without dead ends: 561 [2020-09-25 10:59:55,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 10:59:55,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2020-09-25 10:59:55,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 483. [2020-09-25 10:59:55,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-09-25 10:59:55,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 599 transitions. [2020-09-25 10:59:55,888 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 599 transitions. Word has length 185 [2020-09-25 10:59:55,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:59:55,889 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 599 transitions. [2020-09-25 10:59:55,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 10:59:55,889 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 599 transitions. [2020-09-25 10:59:55,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-09-25 10:59:55,894 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:55,894 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] [2020-09-25 10:59:55,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:59:55,895 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:55,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:55,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1297667995, now seen corresponding path program 1 times [2020-09-25 10:59:55,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:55,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635152610] [2020-09-25 10:59:55,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:56,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:56,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:56,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:56,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:56,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:00,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:00,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-09-25 11:00:00,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:00:00,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4515 [2020-09-25 11:00:00,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:00,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:00,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:00,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 11:00:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 11:00:00,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:00,729 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:00:00,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:00:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:00,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:01,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:00:01,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:01,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 11:00:01,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:01,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:01,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:01,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:01,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 11:00:01,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:01,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:00:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:01,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:01,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:01,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:01,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:01,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:01,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:01,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:01,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:01,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:01,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:01,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:00:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:01,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:01,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:01,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:01,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:01,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:01,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:01,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:01,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:01,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:01,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:01,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:00:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:01,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:01,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:01,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:01,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:00:01,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:01,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:01,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:01,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:01,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:01,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:01,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:00:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:01,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:01,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:01,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:01,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:00:01,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:01,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:01,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:01,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:01,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:01,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:01,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 11:00:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:01,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:01,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 11:00:01,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:00:01,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-25 11:00:01,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:01,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 11:00:01,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:01,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:01,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:01,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 11:00:01,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:00:01,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 11:00:01,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:01,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:00:01,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 11:00:01,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:00:01,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:00:01,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:01,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:01,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:00:01,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:01,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 11:00:01,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:01,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:01,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:00:01,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:01,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 11:00:01,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:01,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:00:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:01,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:01,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:00:01,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:01,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:01,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:01,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:01,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:01,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:01,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:01,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:00:01,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 11:00:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:01,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:01,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:00:01,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:01,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:00:01,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:01,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:01,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:01,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 11:00:01,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:01,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:01,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 11:00:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:01,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:01,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 11:00:01,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:01,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:00:01,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:01,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:01,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:01,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:01,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:01,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:01,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:01,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:01,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:01,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:01,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:01,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:01,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:01,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:01,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:01,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:01,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:01,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 11:00:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:01,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:01,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:00:01,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:01,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:00:01,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:01,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:01,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:01,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:01,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:00:01,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:01,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-25 11:00:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:01,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:01,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:01,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:01,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:00:01,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:01,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:01,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:01,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:01,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:01,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:01,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-25 11:00:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:01,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:01,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:01,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:01,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:01,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:01,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:01,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:01,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:01,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:01,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:01,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:01,897 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 11:00:01,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [635152610] [2020-09-25 11:00:01,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:00:01,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 11:00:01,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650822525] [2020-09-25 11:00:01,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 11:00:01,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:00:01,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 11:00:01,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 11:00:01,902 INFO L87 Difference]: Start difference. First operand 483 states and 599 transitions. Second operand 12 states. [2020-09-25 11:00:02,502 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:00:03,583 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:03,886 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:00:04,196 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:00:04,523 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:04,844 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:00:05,142 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:06,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:00:06,588 INFO L93 Difference]: Finished difference Result 1044 states and 1493 transitions. [2020-09-25 11:00:06,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 11:00:06,589 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 215 [2020-09-25 11:00:06,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:00:06,602 INFO L225 Difference]: With dead ends: 1044 [2020-09-25 11:00:06,602 INFO L226 Difference]: Without dead ends: 671 [2020-09-25 11:00:06,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-09-25 11:00:06,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2020-09-25 11:00:06,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 502. [2020-09-25 11:00:06,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2020-09-25 11:00:06,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 618 transitions. [2020-09-25 11:00:06,706 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 618 transitions. Word has length 215 [2020-09-25 11:00:06,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:00:06,707 INFO L479 AbstractCegarLoop]: Abstraction has 502 states and 618 transitions. [2020-09-25 11:00:06,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 11:00:06,707 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 618 transitions. [2020-09-25 11:00:06,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 11:00:06,711 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:00:06,711 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:00:06,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:00:06,712 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:00:06,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:00:06,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1140601418, now seen corresponding path program 1 times [2020-09-25 11:00:06,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:00:06,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944971730] [2020-09-25 11:00:06,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:00:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:06,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:06,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:08,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:08,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-25 11:00:08,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:00:08,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1661 [2020-09-25 11:00:08,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:08,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:00:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 11:00:08,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:00:08,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:08,777 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:00:08,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:00:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:08,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:08,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:08,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:00:08,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:08,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 11:00:08,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:08,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:08,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:08,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:08,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:08,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:08,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:00:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:08,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:08,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:08,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:08,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:08,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:08,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:08,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:08,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:08,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:08,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:08,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:08,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:00:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:08,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:08,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:08,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:08,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:08,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:00:08,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:08,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:08,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:08,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:08,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:08,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:08,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:00:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:08,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:08,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:08,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:08,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:08,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:08,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:08,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:08,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:08,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:08,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:08,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:08,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:00:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:08,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:08,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:08,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:08,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:08,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:00:08,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:08,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:08,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:08,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:08,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:08,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:08,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-25 11:00:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:08,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:09,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:09,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 11:00:09,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:09,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 11:00:09,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:09,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:09,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:00:09,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 11:00:09,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:00:09,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:09,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:09,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:09,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:09,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 11:00:09,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:09,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 11:00:09,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:09,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:09,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:00:09,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 11:00:09,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:00:09,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:09,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:09,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:09,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:09,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:00:09,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:09,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 11:00:09,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:09,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:09,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:00:09,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:00:09,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:00:09,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:09,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:00:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:09,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:09,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:09,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:00:09,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:09,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:00:09,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:09,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:09,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:00:09,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:09,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:09,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:09,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 11:00:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:09,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:09,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:09,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:00:09,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:09,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:09,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:09,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:09,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:09,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 11:00:09,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:09,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:09,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 11:00:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:09,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:09,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:09,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 11:00:09,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:09,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:00:09,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:09,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:09,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:09,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 11:00:09,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:09,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:09,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:09,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:09,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:09,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:09,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:09,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:09,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:09,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:09,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:09,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:09,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:09,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 11:00:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:09,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:09,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:09,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:00:09,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:09,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:09,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:09,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:09,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:09,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 11:00:09,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:09,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:09,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 11:00:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:09,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:09,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:09,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:00:09,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:09,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:00:09,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:09,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 11:00:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:09,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:09,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:09,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:09,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:09,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:09,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:09,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:00:09,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:09,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:09,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:09,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:09,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:09,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:09,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-25 11:00:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:09,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:09,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:09,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:09,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:09,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:09,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:09,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:09,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:09,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:09,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:09,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:09,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-09-25 11:00:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:09,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:09,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:09,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:09,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:09,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:09,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:09,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:09,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:09,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:09,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:09,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:09,308 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 11:00:09,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944971730] [2020-09-25 11:00:09,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:00:09,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 11:00:09,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757741979] [2020-09-25 11:00:09,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:00:09,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:00:09,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:00:09,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:00:09,312 INFO L87 Difference]: Start difference. First operand 502 states and 618 transitions. Second operand 10 states. [2020-09-25 11:00:10,432 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:10,767 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:11,087 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:11,415 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:11,728 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:12,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:00:12,957 INFO L93 Difference]: Finished difference Result 1041 states and 1433 transitions. [2020-09-25 11:00:12,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 11:00:12,957 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 213 [2020-09-25 11:00:12,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:00:12,964 INFO L225 Difference]: With dead ends: 1041 [2020-09-25 11:00:12,964 INFO L226 Difference]: Without dead ends: 649 [2020-09-25 11:00:12,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 11:00:12,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2020-09-25 11:00:13,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 495. [2020-09-25 11:00:13,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-09-25 11:00:13,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 601 transitions. [2020-09-25 11:00:13,054 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 601 transitions. Word has length 213 [2020-09-25 11:00:13,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:00:13,055 INFO L479 AbstractCegarLoop]: Abstraction has 495 states and 601 transitions. [2020-09-25 11:00:13,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:00:13,055 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 601 transitions. [2020-09-25 11:00:13,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 11:00:13,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:00:13,060 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:00:13,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:00:13,061 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:00:13,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:00:13,061 INFO L82 PathProgramCache]: Analyzing trace with hash 346250695, now seen corresponding path program 1 times [2020-09-25 11:00:13,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:00:13,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869709058] [2020-09-25 11:00:13,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:00:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:13,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:13,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:15,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking...