/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:31:29,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:31:29,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:31:29,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:31:29,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:31:29,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:31:29,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:31:29,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:31:29,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:31:29,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:31:29,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:31:29,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:31:29,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:31:29,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:31:29,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:31:29,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:31:29,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:31:29,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:31:29,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:31:29,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:31:29,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:31:29,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:31:29,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:31:29,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:31:29,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:31:29,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:31:29,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:31:29,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:31:29,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:31:29,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:31:29,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:31:29,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:31:29,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:31:29,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:31:29,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:31:29,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:31:29,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:31:29,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:31:29,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:31:29,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:31:29,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:31:29,274 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 06:31:29,300 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:31:29,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:31:29,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:31:29,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:31:29,302 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:31:29,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:31:29,303 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:31:29,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:31:29,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:31:29,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:31:29,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:31:29,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:31:29,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:31:29,304 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:31:29,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:31:29,305 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:31:29,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:31:29,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:31:29,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:31:29,305 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:31:29,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:31:29,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:31:29,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:31:29,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:31:29,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:31:29,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:31:29,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:31:29,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:31:29,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:31:29,308 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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:31:29,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:31:29,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:31:29,807 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:31:29,811 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:31:29,813 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:31:29,814 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2020-09-25 06:31:29,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c41589070/ed7367dc9c7545d882bfc7eaac12cdee/FLAG8ee5ff29d [2020-09-25 06:31:30,539 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:31:30,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2020-09-25 06:31:30,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c41589070/ed7367dc9c7545d882bfc7eaac12cdee/FLAG8ee5ff29d [2020-09-25 06:31:30,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c41589070/ed7367dc9c7545d882bfc7eaac12cdee [2020-09-25 06:31:30,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:31:30,832 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:31:30,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:31:30,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:31:30,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:31:30,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:31:30" (1/1) ... [2020-09-25 06:31:30,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f8d7276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:31:30, skipping insertion in model container [2020-09-25 06:31:30,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:31:30" (1/1) ... [2020-09-25 06:31:30,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:31:30,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:31:31,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:31:31,333 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:31:31,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:31:31,560 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:31:31,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:31:31 WrapperNode [2020-09-25 06:31:31,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:31:31,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:31:31,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:31:31,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:31:31,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:31:31" (1/1) ... [2020-09-25 06:31:31,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:31:31" (1/1) ... [2020-09-25 06:31:31,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:31:31" (1/1) ... [2020-09-25 06:31:31,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:31:31" (1/1) ... [2020-09-25 06:31:31,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:31:31" (1/1) ... [2020-09-25 06:31:31,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:31:31" (1/1) ... [2020-09-25 06:31:31,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:31:31" (1/1) ... [2020-09-25 06:31:31,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:31:31,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:31:31,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:31:31,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:31:31,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:31:31" (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 06:31:31,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:31:31,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:31:31,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:31:31,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:31:31,739 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:31:31,739 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:31:31,739 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:31:31,739 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:31:31,739 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:31:31,740 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:31:31,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:31:31,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:31:31,740 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:31:31,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:31:31,741 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:31:31,741 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:31:31,741 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:31:31,741 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:31:31,741 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:31:31,742 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:31:31,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:31:31,743 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:31:31,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:31:31,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:31:31,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:31:31,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:31:31,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:31:31,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:31:31,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:31:31,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:31:31,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:31:31,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 06:31:31,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 06:31:31,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 06:31:31,746 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:31:31,746 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:31:31,746 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:31:31,746 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:31:31,746 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:31:31,746 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:31:31,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:31:31,747 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:31:31,748 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:31:31,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:31:31,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:31:31,748 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:31:31,748 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:31:31,748 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:31:31,749 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:31:31,749 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:31:31,749 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:31:31,749 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:31:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:31:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:31:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:31:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:31:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:31:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:31:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 06:31:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 06:31:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:31:31,752 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:31:31,752 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:31:31,752 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:31:31,752 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:31:31,752 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:31:31,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:31:31,753 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:31:31,753 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:31:31,754 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:31:31,754 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:31:31,755 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:31:31,756 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:31:31,756 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:31:31,756 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:31:31,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:31:31,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:31:31,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:31:31,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:31:31,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:31:31,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:31:31,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:31:31,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:31:31,758 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:31:31,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:31:31,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:31:31,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:31:31,759 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:31:31,759 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 06:31:31,759 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:31:31,759 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:31:31,759 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:31:31,759 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:31:31,760 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:31:31,760 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:31:31,760 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:31:31,760 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:31:31,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:31:31,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:31:31,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:31:33,032 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:31:33,033 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:31:33,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:31:33 BoogieIcfgContainer [2020-09-25 06:31:33,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:31:33,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:31:33,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:31:33,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:31:33,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:31:30" (1/3) ... [2020-09-25 06:31:33,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6551b748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:31:33, skipping insertion in model container [2020-09-25 06:31:33,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:31:31" (2/3) ... [2020-09-25 06:31:33,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6551b748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:31:33, skipping insertion in model container [2020-09-25 06:31:33,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:31:33" (3/3) ... [2020-09-25 06:31:33,051 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2020-09-25 06:31:33,063 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:31:33,075 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:31:33,099 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:31:33,137 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:31:33,137 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:31:33,137 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:31:33,137 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:31:33,137 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:31:33,138 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:31:33,138 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:31:33,138 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:31:33,170 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states. [2020-09-25 06:31:33,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 06:31:33,192 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:31:33,194 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:31:33,195 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:31:33,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:31:33,204 INFO L82 PathProgramCache]: Analyzing trace with hash -68792430, now seen corresponding path program 1 times [2020-09-25 06:31:33,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:31:33,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785290520] [2020-09-25 06:31:33,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:31:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:33,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:34,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:35,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:35,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:38,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:38,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 06:31:38,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:31:38,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 06:31:38,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:38,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:38,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:38,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:31:38,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:38,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:31:39,134 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:31:39,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:31:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:39,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:39,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:39,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:31:39,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:39,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 06:31:39,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:39,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:39,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:39,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:39,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:39,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:39,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:31:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:39,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:39,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:39,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:39,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:39,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:31:39,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:39,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:39,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:39,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:39,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:39,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:39,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:31:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:39,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:39,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:39,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:39,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:39,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:31:39,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:39,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:39,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:39,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:39,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:39,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:39,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:31:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:39,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:39,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:39,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:39,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:39,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:31:39,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:39,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:39,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:39,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:39,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:39,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:39,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:31:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:39,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:39,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:39,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:39,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:39,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:31:39,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:39,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:39,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:39,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:39,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:39,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:39,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:31:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:39,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:39,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:39,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:31:39,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:39,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:31:39,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:39,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:39,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:39,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:39,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:39,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:39,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:31:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:39,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:39,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:39,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:31:39,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:39,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:31:39,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:39,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 06:31:39,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:39,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:39,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:31:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:39,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:39,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:39,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:39,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:39,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:31:39,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:39,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:39,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:39,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:39,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:39,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 06:31:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:39,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:39,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:39,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:39,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:39,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:31:39,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:39,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:31:39,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:39,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:31:39,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 06:31:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:39,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:39,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:39,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:39,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:39,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 06:31:39,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:39,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:39,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:39,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:31:39,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:39,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:39,549 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:31:39,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785290520] [2020-09-25 06:31:39,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:31:39,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:31:39,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512400936] [2020-09-25 06:31:39,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:31:39,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:31:39,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:31:39,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:31:39,586 INFO L87 Difference]: Start difference. First operand 329 states. Second operand 4 states. [2020-09-25 06:31:41,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:31:41,231 INFO L93 Difference]: Finished difference Result 517 states and 605 transitions. [2020-09-25 06:31:41,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:31:41,234 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 06:31:41,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:31:41,256 INFO L225 Difference]: With dead ends: 517 [2020-09-25 06:31:41,256 INFO L226 Difference]: Without dead ends: 324 [2020-09-25 06:31:41,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:31:41,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-09-25 06:31:41,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 278. [2020-09-25 06:31:41,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-25 06:31:41,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 302 transitions. [2020-09-25 06:31:41,429 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 302 transitions. Word has length 160 [2020-09-25 06:31:41,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:31:41,431 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 302 transitions. [2020-09-25 06:31:41,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:31:41,432 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 302 transitions. [2020-09-25 06:31:41,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 06:31:41,443 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:31:41,443 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:31:41,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:31:41,444 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:31:41,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:31:41,444 INFO L82 PathProgramCache]: Analyzing trace with hash -891035704, now seen corresponding path program 1 times [2020-09-25 06:31:41,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:31:41,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161237321] [2020-09-25 06:31:41,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:31:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:41,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:41,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:43,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:43,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:45,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:46,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:46,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 06:31:46,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:31:46,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 06:31:46,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:46,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:46,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:31:46,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:31:46,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:31:46,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:46,887 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:31:46,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:31:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:46,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:47,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:47,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:31:47,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:47,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 06:31:47,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:47,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:47,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:47,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:47,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:47,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:47,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:31:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:47,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:47,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:47,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:47,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:47,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:47,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:47,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:47,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:47,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:47,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:47,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:47,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:31:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:47,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:47,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:47,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:47,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:47,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:47,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:47,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:47,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:47,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:47,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:47,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:31:47,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:31:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:47,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:47,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:47,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:47,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:47,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:31:47,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:47,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:47,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:47,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:47,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:47,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:31:47,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:31:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:47,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:47,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:47,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:47,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:47,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:47,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:47,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:47,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:47,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:47,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:47,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:31:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:47,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:47,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:47,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:31:47,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:47,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:47,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:47,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:47,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:47,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:47,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:47,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:47,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:31:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:47,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:47,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:47,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:31:47,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:47,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:31:47,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:47,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:47,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:47,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 06:31:47,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:47,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:47,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:31:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:47,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:47,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:47,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:47,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:47,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:47,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:47,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:47,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:47,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:47,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:47,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:47,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 06:31:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:47,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:47,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:47,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:47,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:47,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:31:47,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:47,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:47,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:47,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:31:47,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:47,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:47,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:31:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:47,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:47,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:47,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:47,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:47,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:31:47,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:47,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:31:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:47,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:47,203 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:31:47,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161237321] [2020-09-25 06:31:47,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:31:47,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:31:47,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781980525] [2020-09-25 06:31:47,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:31:47,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:31:47,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:31:47,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:31:47,207 INFO L87 Difference]: Start difference. First operand 278 states and 302 transitions. Second operand 5 states. [2020-09-25 06:31:47,855 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:31:48,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:31:48,937 INFO L93 Difference]: Finished difference Result 442 states and 497 transitions. [2020-09-25 06:31:48,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:31:48,938 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 06:31:48,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:31:48,943 INFO L225 Difference]: With dead ends: 442 [2020-09-25 06:31:48,943 INFO L226 Difference]: Without dead ends: 313 [2020-09-25 06:31:48,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:31:48,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-09-25 06:31:48,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 268. [2020-09-25 06:31:48,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-25 06:31:48,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 289 transitions. [2020-09-25 06:31:48,989 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 289 transitions. Word has length 161 [2020-09-25 06:31:48,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:31:48,990 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 289 transitions. [2020-09-25 06:31:48,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:31:48,990 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 289 transitions. [2020-09-25 06:31:48,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 06:31:48,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:31:48,993 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:31:48,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:31:48,993 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:31:48,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:31:48,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1936155524, now seen corresponding path program 1 times [2020-09-25 06:31:48,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:31:48,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326016812] [2020-09-25 06:31:48,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:31:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:49,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:49,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:49,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:51,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:54,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:54,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 06:31:54,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:31:54,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 06:31:54,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:54,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:54,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:31:54,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 06:31:54,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 06:31:54,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:54,356 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:31:54,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:31:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:54,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:54,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:54,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:31:54,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:54,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 06:31:54,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:54,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:54,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:54,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:54,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:54,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:54,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:31:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:54,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:54,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:54,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:54,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:54,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:54,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:54,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:54,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:54,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:54,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:54,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:54,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:31:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:54,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:54,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:54,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:54,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:54,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:54,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:54,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:54,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:54,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:54,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:54,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:54,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:31:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:54,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:54,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:54,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:54,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:54,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:31:54,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:54,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:54,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:54,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:54,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:54,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:54,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:31:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:54,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:54,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:54,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:54,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:54,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:54,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:54,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:54,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:54,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:54,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:54,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:54,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:31:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:54,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:54,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:54,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:31:54,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:54,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:54,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:54,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:54,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:54,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:54,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:54,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:54,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:31:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:54,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:54,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:54,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:31:54,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:54,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:31:54,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:54,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:54,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:31:54,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:54,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:31:54,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:54,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 06:31:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:54,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:54,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:54,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:31:54,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:54,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:31:54,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:54,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:54,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:31:54,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:54,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 06:31:54,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:54,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:31:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:54,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:54,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:54,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:54,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:54,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:54,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:54,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:54,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:54,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:54,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:54,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:54,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 06:31:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:54,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:54,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:54,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:54,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:54,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:31:54,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:54,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:54,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:54,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:31:54,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:54,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:54,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 06:31:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:54,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:54,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:54,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:54,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:54,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:31:54,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:54,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:54,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:54,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:31:54,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:54,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:54,631 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:31:54,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326016812] [2020-09-25 06:31:54,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:31:54,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:31:54,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736683392] [2020-09-25 06:31:54,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:31:54,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:31:54,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:31:54,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:31:54,635 INFO L87 Difference]: Start difference. First operand 268 states and 289 transitions. Second operand 6 states. [2020-09-25 06:31:55,211 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:31:56,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:31:56,293 INFO L93 Difference]: Finished difference Result 489 states and 562 transitions. [2020-09-25 06:31:56,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:31:56,294 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 06:31:56,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:31:56,298 INFO L225 Difference]: With dead ends: 489 [2020-09-25 06:31:56,298 INFO L226 Difference]: Without dead ends: 336 [2020-09-25 06:31:56,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:31:56,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2020-09-25 06:31:56,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 268. [2020-09-25 06:31:56,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-25 06:31:56,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 288 transitions. [2020-09-25 06:31:56,341 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 288 transitions. Word has length 174 [2020-09-25 06:31:56,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:31:56,347 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 288 transitions. [2020-09-25 06:31:56,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:31:56,347 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 288 transitions. [2020-09-25 06:31:56,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 06:31:56,349 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:31:56,350 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:31:56,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:31:56,350 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:31:56,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:31:56,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1172327951, now seen corresponding path program 1 times [2020-09-25 06:31:56,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:31:56,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755652387] [2020-09-25 06:31:56,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:31:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:56,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:56,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:57,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:58,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:59,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:59,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:00,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:00,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:01,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:01,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-25 06:32:01,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 06:32:01,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 06:32:01,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:01,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:01,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:32:01,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-25 06:32:01,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 06:32:01,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:01,766 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:32:01,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:32:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:01,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:01,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:01,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:32:01,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:01,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 06:32:01,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:01,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:01,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:01,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:01,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:01,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:01,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:32:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:01,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:01,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:01,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:01,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:01,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:01,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:01,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:01,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:01,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:01,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:01,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:01,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:32:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:01,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:01,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:01,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:01,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:01,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:01,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:01,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:01,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:01,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:01,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:01,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:01,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:32:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:01,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:01,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:01,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:01,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:01,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:32:01,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:01,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:01,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:01,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:01,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:01,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:01,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:32:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:01,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:01,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:01,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:01,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:01,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:01,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:01,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:01,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:01,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:01,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:32:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:01,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:01,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:01,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:32:01,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:01,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:01,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:01,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:01,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:01,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:01,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:32:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:01,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:01,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:01,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:32:01,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:01,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:01,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:01,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:02,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:02,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:02,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:02,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:02,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 06:32:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:02,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:02,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:02,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:32:02,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:02,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:02,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:02,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:02,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:02,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:02,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:02,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:02,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:32:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:02,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:02,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:02,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:02,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:02,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:02,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:02,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:02,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:02,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:02,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:02,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:02,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:32:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:02,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:02,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:02,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:02,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:32:02,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:32:02,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 06:32:02,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:02,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:02,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:32:02,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:32:02,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:32:02,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:02,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:32:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:02,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:02,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:02,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:32:02,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:02,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:32:02,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:02,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:32:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:32:02,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:32:02,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:02,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:32:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:02,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:02,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:02,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:02,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:02,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:02,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:02,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:32:02,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:02,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 06:32:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:02,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:02,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:02,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:02,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:02,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:02,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:02,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:02,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:02,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:32:02,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:02,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:02,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 06:32:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:02,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:02,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:02,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:02,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:02,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:02,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:02,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:02,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:32:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:02,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:02,188 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:32:02,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755652387] [2020-09-25 06:32:02,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:32:02,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:32:02,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925344678] [2020-09-25 06:32:02,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:32:02,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:32:02,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:32:02,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:32:02,192 INFO L87 Difference]: Start difference. First operand 268 states and 288 transitions. Second operand 8 states. [2020-09-25 06:32:02,896 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:32:04,975 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:32:05,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:32:05,714 INFO L93 Difference]: Finished difference Result 678 states and 807 transitions. [2020-09-25 06:32:05,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 06:32:05,714 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-09-25 06:32:05,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:32:05,720 INFO L225 Difference]: With dead ends: 678 [2020-09-25 06:32:05,721 INFO L226 Difference]: Without dead ends: 525 [2020-09-25 06:32:05,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2020-09-25 06:32:05,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-09-25 06:32:05,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 387. [2020-09-25 06:32:05,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2020-09-25 06:32:05,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 419 transitions. [2020-09-25 06:32:05,804 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 419 transitions. Word has length 187 [2020-09-25 06:32:05,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:32:05,805 INFO L479 AbstractCegarLoop]: Abstraction has 387 states and 419 transitions. [2020-09-25 06:32:05,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:32:05,805 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 419 transitions. [2020-09-25 06:32:05,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 06:32:05,808 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:32:05,808 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:32:05,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:32:05,809 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:32:05,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:32:05,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1397715062, now seen corresponding path program 1 times [2020-09-25 06:32:05,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:32:05,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992247427] [2020-09-25 06:32:05,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:32:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:05,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:06,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:06,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:06,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:10,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:10,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:10,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 06:32:10,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:32:10,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 06:32:10,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:10,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:10,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:32:10,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-25 06:32:10,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 06:32:10,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:11,285 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:32:11,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:32:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:11,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:32:11,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:11,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-25 06:32:11,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:11,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:11,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:11,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:11,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:11,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:11,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:32:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:11,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:11,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:11,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:32:11,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:11,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:11,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:11,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:11,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:11,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:32:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:11,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:11,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:11,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:32:11,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:11,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:11,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:11,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:11,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:32:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:11,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:11,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:11,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:11,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:11,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:11,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:11,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:11,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:11,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:11,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:32:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:11,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:11,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:11,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:32:11,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:11,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:11,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:11,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:11,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:11,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:11,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:32:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:11,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:32:11,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:11,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:11,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:11,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:11,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:11,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:11,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:11,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:11,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:32:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:11,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:32:11,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:11,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:11,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:11,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:11,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:11,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:11,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:11,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:11,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 06:32:11,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:11,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:32:11,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:11,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:11,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:11,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:11,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:11,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:11,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:11,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:11,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:32:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:11,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:11,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:11,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:11,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:11,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:11,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:11,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:11,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:11,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:11,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:32:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:11,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:32:11,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:32:11,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 06:32:11,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:11,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:11,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:11,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:11,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:32:11,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:11,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:32:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:11,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:32:11,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:11,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 06:32:11,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:11,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:11,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:11,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:11,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:32:11,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:11,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:32:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:11,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:32:11,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:11,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 06:32:11,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:11,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:11,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:11,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:11,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 06:32:11,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:11,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:32:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:11,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:32:11,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:11,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:32:11,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:11,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:11,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:11,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:11,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:11,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:11,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:32:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:11,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:11,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:11,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:11,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:11,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:11,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:11,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:11,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:32:11,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:11,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 06:32:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:11,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:11,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:11,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:11,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:11,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:11,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:11,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:11,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:32:11,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:11,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-25 06:32:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:11,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:11,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:11,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:32:11,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:11,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:11,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:32:11,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:11,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:32:11,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:11,848 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 06:32:11,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [992247427] [2020-09-25 06:32:11,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:32:11,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 06:32:11,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995815185] [2020-09-25 06:32:11,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 06:32:11,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:32:11,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 06:32:11,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:32:11,850 INFO L87 Difference]: Start difference. First operand 387 states and 419 transitions. Second operand 11 states. [2020-09-25 06:32:12,436 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:32:13,459 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:32:13,770 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:32:14,829 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:32:15,207 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:32:15,623 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:32:16,387 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:32:16,715 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 06:32:17,030 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 06:32:17,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:32:17,984 INFO L93 Difference]: Finished difference Result 796 states and 934 transitions. [2020-09-25 06:32:17,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 06:32:17,985 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 211 [2020-09-25 06:32:17,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:32:17,990 INFO L225 Difference]: With dead ends: 796 [2020-09-25 06:32:17,990 INFO L226 Difference]: Without dead ends: 524 [2020-09-25 06:32:17,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2020-09-25 06:32:17,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-09-25 06:32:18,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 386. [2020-09-25 06:32:18,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-25 06:32:18,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 416 transitions. [2020-09-25 06:32:18,049 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 416 transitions. Word has length 211 [2020-09-25 06:32:18,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:32:18,050 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 416 transitions. [2020-09-25 06:32:18,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 06:32:18,050 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 416 transitions. [2020-09-25 06:32:18,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 06:32:18,053 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:32:18,054 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:32:18,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:32:18,054 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:32:18,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:32:18,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1577086917, now seen corresponding path program 1 times [2020-09-25 06:32:18,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:32:18,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614258307] [2020-09-25 06:32:18,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:32:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:18,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:18,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:18,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-25 06:32:18,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:18,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 724 [2020-09-25 06:32:18,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:18,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:18,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:32:18,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 206 [2020-09-25 06:32:18,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:32:18,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:19,129 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:32:19,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:32:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:19,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:19,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:19,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:32:19,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:19,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 06:32:19,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:19,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:19,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:19,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:19,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:19,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:19,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:32:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:19,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:19,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:19,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:19,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:19,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:32:19,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:19,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:19,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:19,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:32:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:19,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:19,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:19,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:19,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:19,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:32:19,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:19,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:19,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:19,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:19,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:19,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:19,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:32:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:19,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:19,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:19,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:19,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:19,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:19,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:19,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:19,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:19,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:19,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:19,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:19,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:32:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:19,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:19,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:19,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:19,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:19,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:19,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:19,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:19,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:19,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:19,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:19,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:19,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:32:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:19,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:19,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:19,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:32:19,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:19,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:32:19,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:19,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:19,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:19,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:32:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:19,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:19,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:19,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:32:19,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:19,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:19,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:19,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:19,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:19,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:19,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:19,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:19,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 06:32:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:19,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:19,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:19,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:32:19,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:19,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:19,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:19,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:19,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:19,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:19,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:19,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:19,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:32:19,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:19,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:19,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:19,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:19,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:19,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:32:19,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:19,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:19,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:19,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:19,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:19,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:19,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:32:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:19,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:19,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:19,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:32:19,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:19,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 06:32:19,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:19,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:19,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:32:19,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 06:32:19,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:32:19,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:19,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:32:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:19,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking...