/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 17:58:04,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 17:58:04,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 17:58:04,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 17:58:04,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 17:58:04,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 17:58:04,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 17:58:04,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 17:58:04,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 17:58:04,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 17:58:04,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 17:58:04,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 17:58:04,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 17:58:04,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 17:58:04,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 17:58:04,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 17:58:04,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 17:58:04,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 17:58:04,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 17:58:04,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 17:58:04,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 17:58:04,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 17:58:04,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 17:58:04,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 17:58:04,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 17:58:04,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 17:58:04,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 17:58:04,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 17:58:04,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 17:58:04,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 17:58:04,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 17:58:04,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 17:58:04,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 17:58:04,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 17:58:04,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 17:58:04,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 17:58:04,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 17:58:04,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 17:58:04,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 17:58:04,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 17:58:04,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 17:58:04,276 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 17:58:04,303 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 17:58:04,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 17:58:04,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 17:58:04,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 17:58:04,306 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 17:58:04,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 17:58:04,306 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 17:58:04,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 17:58:04,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 17:58:04,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 17:58:04,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 17:58:04,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 17:58:04,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 17:58:04,308 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 17:58:04,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 17:58:04,309 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 17:58:04,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 17:58:04,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 17:58:04,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 17:58:04,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 17:58:04,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 17:58:04,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:58:04,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 17:58:04,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 17:58:04,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 17:58:04,324 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 17:58:04,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 17:58:04,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 17:58:04,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 17:58:04,324 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 17:58:04,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 17:58:04,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 17:58:04,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 17:58:04,770 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 17:58:04,772 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 17:58:04,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c [2020-10-28 17:58:04,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16d0c0b8c/86681c390a1c4f3f9dd959069643b675/FLAG28718e8f4 [2020-10-28 17:58:05,538 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 17:58:05,539 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c [2020-10-28 17:58:05,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16d0c0b8c/86681c390a1c4f3f9dd959069643b675/FLAG28718e8f4 [2020-10-28 17:58:05,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16d0c0b8c/86681c390a1c4f3f9dd959069643b675 [2020-10-28 17:58:05,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 17:58:05,860 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 17:58:05,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 17:58:05,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 17:58:05,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 17:58:05,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:58:05" (1/1) ... [2020-10-28 17:58:05,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c6a7446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:05, skipping insertion in model container [2020-10-28 17:58:05,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:58:05" (1/1) ... [2020-10-28 17:58:05,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 17:58:05,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 17:58:06,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:58:06,348 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 17:58:06,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:58:06,510 INFO L208 MainTranslator]: Completed translation [2020-10-28 17:58:06,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:06 WrapperNode [2020-10-28 17:58:06,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 17:58:06,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 17:58:06,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 17:58:06,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 17:58:06,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:06" (1/1) ... [2020-10-28 17:58:06,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:06" (1/1) ... [2020-10-28 17:58:06,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:06" (1/1) ... [2020-10-28 17:58:06,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:06" (1/1) ... [2020-10-28 17:58:06,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:06" (1/1) ... [2020-10-28 17:58:06,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:06" (1/1) ... [2020-10-28 17:58:06,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:06" (1/1) ... [2020-10-28 17:58:06,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 17:58:06,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 17:58:06,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 17:58:06,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 17:58:06,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:58:06,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 17:58:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 17:58:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 17:58:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 17:58:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-28 17:58:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-28 17:58:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-28 17:58:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-28 17:58:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 17:58:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-28 17:58:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 17:58:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-28 17:58:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 17:58:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 17:58:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 17:58:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 17:58:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 17:58:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-28 17:58:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 17:58:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 17:58:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 17:58:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-28 17:58:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-28 17:58:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-28 17:58:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-28 17:58:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-28 17:58:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-28 17:58:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 17:58:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-28 17:58:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 17:58:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 17:58:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 17:58:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 17:58:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 17:58:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 17:58:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 17:58:08,173 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 17:58:08,173 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 17:58:08,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:58:08 BoogieIcfgContainer [2020-10-28 17:58:08,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 17:58:08,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 17:58:08,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 17:58:08,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 17:58:08,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:58:05" (1/3) ... [2020-10-28 17:58:08,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c6e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:58:08, skipping insertion in model container [2020-10-28 17:58:08,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:06" (2/3) ... [2020-10-28 17:58:08,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c6e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:58:08, skipping insertion in model container [2020-10-28 17:58:08,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:58:08" (3/3) ... [2020-10-28 17:58:08,186 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c [2020-10-28 17:58:08,199 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 17:58:08,204 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 17:58:08,218 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 17:58:08,250 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 17:58:08,250 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 17:58:08,250 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 17:58:08,251 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 17:58:08,251 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 17:58:08,251 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 17:58:08,251 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 17:58:08,251 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 17:58:08,276 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states. [2020-10-28 17:58:08,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-28 17:58:08,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:58:08,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:58:08,306 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:58:08,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:58:08,313 INFO L82 PathProgramCache]: Analyzing trace with hash -516337600, now seen corresponding path program 1 times [2020-10-28 17:58:08,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:58:08,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [275328607] [2020-10-28 17:58:08,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:58:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:09,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:09,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:09,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-28 17:58:09,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:09,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 673 [2020-10-28 17:58:09,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:09,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-28 17:58:09,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:09,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 17:58:10,140 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 17:58:10,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:58:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:10,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:10,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:10,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:58:10,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:10,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 17:58:10,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:10,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:10,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:10,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:10,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:10,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:58:10,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:58:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:10,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:10,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:10,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 17:58:10,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:10,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-28 17:58:10,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:10,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:10,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:10,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:10,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:10,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:58:10,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 17:58:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:10,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:10,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:10,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:58:10,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:10,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:58:10,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:10,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:10,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:10,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:58:10,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:10,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:58:10,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 17:58:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:10,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:10,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:10,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:10,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:10,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:58:10,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:10,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:10,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:10,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:10,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:10,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:58:10,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-28 17:58:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:10,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:10,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:10,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:10,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:10,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 17:58:10,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:10,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:10,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:10,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:10,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:10,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:58:10,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 17:58:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:10,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:10,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:10,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:10,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:10,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:58:10,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:10,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:10,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:10,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:10,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:10,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:58:10,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-28 17:58:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:10,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:10,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:10,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:10,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:10,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:58:10,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:10,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:10,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:58:10,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 17:58:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:10,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:10,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:10,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:58:10,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:10,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:58:10,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:10,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:10,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:10,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:58:10,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:10,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:58:10,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:58:10,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [275328607] [2020-10-28 17:58:10,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:58:10,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 17:58:10,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009657344] [2020-10-28 17:58:10,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 17:58:10,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:58:10,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 17:58:10,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 17:58:10,779 INFO L87 Difference]: Start difference. First operand 357 states. Second operand 7 states. [2020-10-28 17:58:12,012 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:12,732 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:13,431 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:14,087 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:14,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:58:14,827 INFO L93 Difference]: Finished difference Result 553 states and 925 transitions. [2020-10-28 17:58:14,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 17:58:14,829 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-28 17:58:14,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:58:14,851 INFO L225 Difference]: With dead ends: 553 [2020-10-28 17:58:14,852 INFO L226 Difference]: Without dead ends: 389 [2020-10-28 17:58:14,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:58:14,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-28 17:58:14,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 349. [2020-10-28 17:58:14,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-10-28 17:58:14,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 596 transitions. [2020-10-28 17:58:14,988 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 596 transitions. Word has length 109 [2020-10-28 17:58:14,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:58:14,989 INFO L481 AbstractCegarLoop]: Abstraction has 349 states and 596 transitions. [2020-10-28 17:58:14,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 17:58:14,989 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 596 transitions. [2020-10-28 17:58:14,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-28 17:58:14,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:58:14,995 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:58:14,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 17:58:14,996 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:58:14,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:58:14,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1411935102, now seen corresponding path program 1 times [2020-10-28 17:58:14,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:58:14,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1238309725] [2020-10-28 17:58:14,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:58:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:15,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:16,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:16,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-28 17:58:16,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:16,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1552 [2020-10-28 17:58:16,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:16,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:16,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:58:16,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-28 17:58:16,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:58:16,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:58:17,400 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 17:58:17,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:58:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:17,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:17,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:17,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:58:17,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:17,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 17:58:17,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:17,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:17,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:17,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:17,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:17,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:17,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:58:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:17,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:17,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:17,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 17:58:17,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:17,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-28 17:58:17,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:17,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:17,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:58:17,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:17,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 17:58:17,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:58:17,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 17:58:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:17,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:17,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:17,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:58:17,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:17,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:58:17,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:17,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:17,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:58:17,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:58:17,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:58:17,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:17,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 17:58:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:17,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:17,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:17,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:17,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:17,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:58:17,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:17,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:17,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:17,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:17,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:17,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:18,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-28 17:58:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:18,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:18,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:18,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:18,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:18,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:58:18,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:18,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:18,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:18,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:18,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:18,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:18,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 17:58:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:18,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:18,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:18,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:18,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:18,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:58:18,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:18,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:18,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:18,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:18,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:18,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:18,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-28 17:58:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:18,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:18,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:18,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:18,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:18,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:58:18,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:18,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:18,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:18,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:18,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:18,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:18,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 17:58:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:18,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:18,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:18,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:58:18,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:18,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:58:18,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:18,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:18,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:18,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:58:18,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:18,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:18,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:58:18,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1238309725] [2020-10-28 17:58:18,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:58:18,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 17:58:18,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270547289] [2020-10-28 17:58:18,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 17:58:18,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:58:18,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 17:58:18,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:58:18,261 INFO L87 Difference]: Start difference. First operand 349 states and 596 transitions. Second operand 13 states. [2020-10-28 17:58:21,457 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-28 17:58:22,209 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-28 17:58:23,028 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-28 17:58:23,721 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 17:58:24,517 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:25,156 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:25,840 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:26,546 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:27,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:58:27,422 INFO L93 Difference]: Finished difference Result 548 states and 913 transitions. [2020-10-28 17:58:27,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 17:58:27,422 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-28 17:58:27,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:58:27,430 INFO L225 Difference]: With dead ends: 548 [2020-10-28 17:58:27,430 INFO L226 Difference]: Without dead ends: 389 [2020-10-28 17:58:27,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-28 17:58:27,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-28 17:58:27,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 349. [2020-10-28 17:58:27,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-10-28 17:58:27,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 562 transitions. [2020-10-28 17:58:27,501 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 562 transitions. Word has length 109 [2020-10-28 17:58:27,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:58:27,502 INFO L481 AbstractCegarLoop]: Abstraction has 349 states and 562 transitions. [2020-10-28 17:58:27,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 17:58:27,502 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 562 transitions. [2020-10-28 17:58:27,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-28 17:58:27,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:58:27,506 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:58:27,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 17:58:27,507 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:58:27,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:58:27,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1879232371, now seen corresponding path program 1 times [2020-10-28 17:58:27,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:58:27,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733683247] [2020-10-28 17:58:27,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:58:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:27,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:27,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:28,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:28,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:32,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:32,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-28 17:58:32,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:58:32,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-28 17:58:32,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:32,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:32,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:58:32,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-28 17:58:32,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-28 17:58:32,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:58:33,416 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 17:58:33,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:58:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:33,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:33,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:33,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:58:33,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:33,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 17:58:33,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:33,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:33,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:33,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:33,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:33,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:33,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:58:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:33,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:33,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:33,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 17:58:33,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:33,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-28 17:58:33,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:33,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:58:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 17:58:33,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:33,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 17:58:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:33,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:33,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:33,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:58:33,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:33,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:58:33,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:33,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:33,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:58:33,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:33,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:58:33,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:33,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 17:58:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:33,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:33,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:33,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:33,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:33,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:58:33,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:33,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:33,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:58:33,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:33,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:58:33,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:33,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-28 17:58:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:33,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:33,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:33,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:33,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:33,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:58:33,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:33,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:33,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:58:33,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:33,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:58:33,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:33,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:58:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:33,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:33,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:33,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:33,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:33,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 17:58:33,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:33,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:33,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:58:33,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:58:33,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:58:33,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:33,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-28 17:58:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:33,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:33,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:33,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:33,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:33,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:58:33,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:33,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:33,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:33,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-28 17:58:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:33,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:33,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:33,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:58:33,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:33,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:58:33,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:33,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:33,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:33,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:58:33,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:33,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:58:34,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733683247] [2020-10-28 17:58:34,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:58:34,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:58:34,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540314699] [2020-10-28 17:58:34,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:58:34,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:58:34,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:58:34,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:58:34,039 INFO L87 Difference]: Start difference. First operand 349 states and 562 transitions. Second operand 10 states. [2020-10-28 17:58:34,729 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 17:58:37,203 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 17:58:37,738 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 17:58:38,358 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:38,674 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-28 17:58:39,150 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 17:58:39,535 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:40,694 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:41,127 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:42,057 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-28 17:58:42,255 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-28 17:58:42,472 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-28 17:58:42,790 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 17:58:42,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:58:42,920 INFO L93 Difference]: Finished difference Result 741 states and 1190 transitions. [2020-10-28 17:58:42,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 17:58:42,921 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 142 [2020-10-28 17:58:42,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:58:42,927 INFO L225 Difference]: With dead ends: 741 [2020-10-28 17:58:42,927 INFO L226 Difference]: Without dead ends: 588 [2020-10-28 17:58:42,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:58:42,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2020-10-28 17:58:43,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 501. [2020-10-28 17:58:43,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-10-28 17:58:43,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 807 transitions. [2020-10-28 17:58:43,005 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 807 transitions. Word has length 142 [2020-10-28 17:58:43,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:58:43,006 INFO L481 AbstractCegarLoop]: Abstraction has 501 states and 807 transitions. [2020-10-28 17:58:43,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:58:43,006 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 807 transitions. [2020-10-28 17:58:43,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-28 17:58:43,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:58:43,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:58:43,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 17:58:43,010 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:58:43,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:58:43,010 INFO L82 PathProgramCache]: Analyzing trace with hash 441702806, now seen corresponding path program 1 times [2020-10-28 17:58:43,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:58:43,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [990091946] [2020-10-28 17:58:43,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:58:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:43,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:43,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:43,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:43,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:44,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:48,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:48,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-28 17:58:48,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:58:48,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-28 17:58:48,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:48,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:48,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:58:48,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:58:48,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 17:58:48,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:48,783 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 17:58:48,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:58:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:48,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:48,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:48,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:58:48,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:48,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 17:58:48,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:48,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:48,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:48,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:48,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:48,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:48,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:58:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:48,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:49,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:49,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 17:58:49,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:49,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-28 17:58:49,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:49,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:49,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:58:49,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:49,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 17:58:49,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:49,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 17:58:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:49,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:49,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:49,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:58:49,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:49,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:58:49,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:49,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:49,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:58:49,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:49,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:58:49,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:49,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 17:58:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:49,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:49,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:49,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:49,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:49,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:58:49,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:49,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:49,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:58:49,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:49,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:58:49,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:49,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-28 17:58:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:49,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:49,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:49,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:49,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:49,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:58:49,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:49,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:49,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:58:49,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:49,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:58:49,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:49,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:58:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:49,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:49,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:49,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 17:58:49,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:49,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:58:49,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:49,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:49,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:58:49,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 17:58:49,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:58:49,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:49,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-28 17:58:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:49,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:49,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:49,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:49,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:49,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:58:49,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:49,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:49,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:49,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:49,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:49,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:49,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-28 17:58:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:49,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:49,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:49,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:58:49,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:49,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:58:49,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:49,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:49,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:49,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:58:49,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:49,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:49,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:58:49,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [990091946] [2020-10-28 17:58:49,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:58:49,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:58:49,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134105324] [2020-10-28 17:58:49,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:58:49,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:58:49,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:58:49,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:58:49,561 INFO L87 Difference]: Start difference. First operand 501 states and 807 transitions. Second operand 10 states. [2020-10-28 17:58:50,328 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 17:58:51,017 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-28 17:58:51,812 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 17:58:52,535 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-28 17:58:57,043 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 17:58:57,469 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:58:57,766 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:58:58,500 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:58:58,964 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:58:59,878 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:00,329 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:01,171 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:01,435 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:02,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:59:02,981 INFO L93 Difference]: Finished difference Result 1617 states and 2616 transitions. [2020-10-28 17:59:02,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:59:02,982 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 145 [2020-10-28 17:59:02,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:59:02,995 INFO L225 Difference]: With dead ends: 1617 [2020-10-28 17:59:02,995 INFO L226 Difference]: Without dead ends: 1162 [2020-10-28 17:59:02,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:59:03,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2020-10-28 17:59:03,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1009. [2020-10-28 17:59:03,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1009 states. [2020-10-28 17:59:03,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1615 transitions. [2020-10-28 17:59:03,135 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1615 transitions. Word has length 145 [2020-10-28 17:59:03,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:59:03,137 INFO L481 AbstractCegarLoop]: Abstraction has 1009 states and 1615 transitions. [2020-10-28 17:59:03,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:59:03,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1615 transitions. [2020-10-28 17:59:03,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-28 17:59:03,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:59:03,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:59:03,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 17:59:03,141 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:59:03,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:59:03,141 INFO L82 PathProgramCache]: Analyzing trace with hash -906917260, now seen corresponding path program 1 times [2020-10-28 17:59:03,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:59:03,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370685518] [2020-10-28 17:59:03,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:59:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:03,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:03,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:03,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:03,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:06,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:07,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:07,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:08,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:08,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-28 17:59:08,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 17:59:08,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-28 17:59:08,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:08,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:08,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:59:08,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:59:08,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-28 17:59:08,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:08,932 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 17:59:08,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:59:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:08,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:08,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:08,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:59:08,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:08,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 17:59:08,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:08,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:08,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:59:08,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:08,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:59:08,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:09,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:59:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:09,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:09,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:09,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 17:59:09,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:09,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-28 17:59:09,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:09,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:09,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:59:09,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:09,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 17:59:09,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:09,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 17:59:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:09,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:09,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:09,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:59:09,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:09,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:59:09,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:09,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:09,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:09,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:09,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:59:09,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:09,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 17:59:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:09,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:09,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:09,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:09,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:09,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:59:09,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:09,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:09,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:09,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:09,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:59:09,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:59:09,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-28 17:59:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:09,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:09,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:09,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:09,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:09,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:59:09,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:09,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:09,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:09,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:09,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:59:09,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:09,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:59:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:09,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:09,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:09,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 17:59:09,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:09,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:59:09,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:09,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:09,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:09,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:59:09,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:59:09,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:09,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-28 17:59:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:09,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:09,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:09,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:09,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:09,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:59:09,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:09,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:09,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:59:09,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:59:09,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:59:09,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:09,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 17:59:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:09,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:09,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:09,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:59:09,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:09,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:59:09,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:09,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:09,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:59:09,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:59:09,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:59:09,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:59:09,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:59:09,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370685518] [2020-10-28 17:59:09,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:59:09,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:59:09,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759488443] [2020-10-28 17:59:09,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:59:09,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:59:09,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:59:09,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:59:09,835 INFO L87 Difference]: Start difference. First operand 1009 states and 1615 transitions. Second operand 10 states. [2020-10-28 17:59:10,594 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 17:59:11,304 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-28 17:59:12,311 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-28 17:59:13,778 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-28 17:59:19,716 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 17:59:20,197 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:20,511 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:59:21,088 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:21,447 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:21,968 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:59:22,674 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:23,222 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:23,723 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:59:24,342 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:25,019 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:25,320 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:25,748 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:59:27,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:59:27,086 INFO L93 Difference]: Finished difference Result 4069 states and 6501 transitions. [2020-10-28 17:59:27,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 17:59:27,087 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 146 [2020-10-28 17:59:27,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:59:27,106 INFO L225 Difference]: With dead ends: 4069 [2020-10-28 17:59:27,106 INFO L226 Difference]: Without dead ends: 3165 [2020-10-28 17:59:27,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-28 17:59:27,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3165 states. [2020-10-28 17:59:27,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3165 to 2757. [2020-10-28 17:59:27,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2757 states. [2020-10-28 17:59:27,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2757 states to 2757 states and 4380 transitions. [2020-10-28 17:59:27,408 INFO L78 Accepts]: Start accepts. Automaton has 2757 states and 4380 transitions. Word has length 146 [2020-10-28 17:59:27,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:59:27,409 INFO L481 AbstractCegarLoop]: Abstraction has 2757 states and 4380 transitions. [2020-10-28 17:59:27,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:59:27,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2757 states and 4380 transitions. [2020-10-28 17:59:27,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-28 17:59:27,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:59:27,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:59:27,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 17:59:27,417 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:59:27,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:59:27,417 INFO L82 PathProgramCache]: Analyzing trace with hash -753712495, now seen corresponding path program 1 times [2020-10-28 17:59:27,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:59:27,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422769696] [2020-10-28 17:59:27,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:59:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:27,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:27,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:27,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:27,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:28,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:32,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:32,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-28 17:59:32,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:59:32,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-28 17:59:32,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:32,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:32,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:59:32,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:59:32,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-28 17:59:32,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:33,241 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 17:59:33,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:59:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:33,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:33,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:33,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:59:33,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:33,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:59:33,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:33,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:33,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:59:33,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:33,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:59:33,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:33,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:59:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:33,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:33,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:33,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 17:59:33,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:33,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-28 17:59:33,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:33,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:33,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:59:33,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:33,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:59:33,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:33,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 17:59:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:33,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:33,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:33,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:59:33,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:33,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:59:33,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:33,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:33,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:33,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:33,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:59:33,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:33,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 17:59:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:33,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:33,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:33,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:33,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:33,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:59:33,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:33,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:33,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:33,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:33,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:59:33,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:33,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-28 17:59:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:33,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:33,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:33,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:33,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:33,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:59:33,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:33,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:33,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:33,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:33,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:59:33,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:33,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:59:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:33,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:33,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:33,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 17:59:33,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:33,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:59:33,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:33,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:33,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:33,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:59:33,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:59:33,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:33,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:59:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:33,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:33,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:33,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:33,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:33,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:59:33,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:33,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:33,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:59:33,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:59:33,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:59:33,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:33,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-28 17:59:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:33,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:33,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:33,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:59:33,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:33,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:59:33,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:33,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:33,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:59:33,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:59:33,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:59:33,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:33,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:59:33,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422769696] [2020-10-28 17:59:33,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:59:33,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:59:33,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100723819] [2020-10-28 17:59:33,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:59:33,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:59:33,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:59:33,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:59:33,888 INFO L87 Difference]: Start difference. First operand 2757 states and 4380 transitions. Second operand 10 states. [2020-10-28 17:59:34,599 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 17:59:35,311 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-28 17:59:36,331 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-28 17:59:37,789 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-28 17:59:43,669 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 17:59:44,175 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:44,485 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:59:45,043 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:45,449 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:46,035 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:59:46,782 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:47,353 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:47,868 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:59:48,538 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:49,326 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:49,587 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:49,932 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:59:51,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:59:51,873 INFO L93 Difference]: Finished difference Result 11159 states and 17742 transitions. [2020-10-28 17:59:51,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 17:59:51,875 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 147 [2020-10-28 17:59:51,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:59:51,921 INFO L225 Difference]: With dead ends: 11159 [2020-10-28 17:59:51,921 INFO L226 Difference]: Without dead ends: 8653 [2020-10-28 17:59:51,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-28 17:59:51,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8653 states. [2020-10-28 17:59:52,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8653 to 7587. [2020-10-28 17:59:52,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7587 states. [2020-10-28 17:59:52,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7587 states to 7587 states and 11960 transitions. [2020-10-28 17:59:52,793 INFO L78 Accepts]: Start accepts. Automaton has 7587 states and 11960 transitions. Word has length 147 [2020-10-28 17:59:52,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:59:52,794 INFO L481 AbstractCegarLoop]: Abstraction has 7587 states and 11960 transitions. [2020-10-28 17:59:52,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:59:52,794 INFO L276 IsEmpty]: Start isEmpty. Operand 7587 states and 11960 transitions. [2020-10-28 17:59:52,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-28 17:59:52,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:59:52,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:59:52,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 17:59:52,812 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:59:52,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:59:52,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1131032822, now seen corresponding path program 1 times [2020-10-28 17:59:52,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:59:52,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355108200] [2020-10-28 17:59:52,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:59:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:52,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:53,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:53,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:53,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:54,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:54,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:54,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:57,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:57,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-28 17:59:57,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 17:59:57,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-28 17:59:57,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:57,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:59:57,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 17:59:57,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 17:59:57,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:58,571 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 17:59:58,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:59:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:58,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:58,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:58,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:59:58,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:58,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:59:58,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:58,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:58,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:59:58,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:58,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:59:58,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:58,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:59:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:58,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:58,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:58,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 17:59:58,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:58,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-28 17:59:58,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:58,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:58,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:58,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:58,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 17:59:58,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:58,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 17:59:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:58,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:58,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:58,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:59:58,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:58,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:59:58,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:58,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:58,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:58,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:58,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:59:58,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:58,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 17:59:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:58,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:58,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:58,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:58,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:58,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:59:58,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:58,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:59:58,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:58,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-28 17:59:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:58,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:58,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:58,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:58,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:58,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:59:58,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:58,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:58,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:58,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:58,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:59:58,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:58,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:59:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:58,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:58,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:58,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:59:58,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:58,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:59:58,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:58,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 17:59:58,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:58,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-28 17:59:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:58,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:58,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:58,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:58,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:58,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:59:58,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:58,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:59:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:59:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:59:58,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:59,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-28 17:59:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:59,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:59,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:59,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:59:59,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:59,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:59:59,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:59,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:59:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:59:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:59:59,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:59:59,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355108200] [2020-10-28 17:59:59,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:59:59,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:59:59,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333366859] [2020-10-28 17:59:59,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:59:59,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:59:59,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:59:59,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:59:59,099 INFO L87 Difference]: Start difference. First operand 7587 states and 11960 transitions. Second operand 10 states. [2020-10-28 17:59:59,836 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:00:02,803 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 18:00:03,442 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 18:00:04,237 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 18:00:04,961 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:05,313 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:00:06,592 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:07,096 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:07,602 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:08,515 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-28 18:00:08,715 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-28 18:00:08,919 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-28 18:00:09,272 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-28 18:00:09,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:00:09,420 INFO L93 Difference]: Finished difference Result 16106 states and 25470 transitions. [2020-10-28 18:00:09,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 18:00:09,420 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2020-10-28 18:00:09,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:00:09,478 INFO L225 Difference]: With dead ends: 16106 [2020-10-28 18:00:09,478 INFO L226 Difference]: Without dead ends: 12324 [2020-10-28 18:00:09,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-28 18:00:09,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12324 states. [2020-10-28 18:00:10,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12324 to 10471. [2020-10-28 18:00:10,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10471 states. [2020-10-28 18:00:10,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10471 states to 10471 states and 16468 transitions. [2020-10-28 18:00:10,711 INFO L78 Accepts]: Start accepts. Automaton has 10471 states and 16468 transitions. Word has length 148 [2020-10-28 18:00:10,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:00:10,712 INFO L481 AbstractCegarLoop]: Abstraction has 10471 states and 16468 transitions. [2020-10-28 18:00:10,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 18:00:10,712 INFO L276 IsEmpty]: Start isEmpty. Operand 10471 states and 16468 transitions. [2020-10-28 18:00:10,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-28 18:00:10,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:00:10,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:00:10,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 18:00:10,731 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:00:10,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:00:10,732 INFO L82 PathProgramCache]: Analyzing trace with hash -512639441, now seen corresponding path program 1 times [2020-10-28 18:00:10,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:00:10,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39944486] [2020-10-28 18:00:10,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:00:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:10,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:10,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:11,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:11,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:11,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:12,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:12,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:15,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:15,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-28 18:00:15,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 18:00:15,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 18:00:15,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:15,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:15,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:00:15,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:00:15,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-28 18:00:15,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:16,575 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:00:16,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:00:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:16,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:16,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:16,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:00:16,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:16,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:00:16,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:16,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:16,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:16,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:00:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:16,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:16,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:16,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 18:00:16,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:16,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-28 18:00:16,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:16,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:16,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:00:16,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:16,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 18:00:16,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:16,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 18:00:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:16,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:16,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:16,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:00:16,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:16,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:00:16,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:16,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:16,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:16,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:16,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:00:16,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:16,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 18:00:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:16,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:16,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:16,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:16,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:16,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:00:16,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:16,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:16,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:16,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:16,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:00:16,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:16,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-28 18:00:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:16,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:16,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:16,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:16,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:16,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:00:16,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:16,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:16,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:16,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:16,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:00:16,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:17,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 18:00:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:17,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:17,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:17,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 18:00:17,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:17,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:00:17,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:17,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:17,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:17,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:17,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 18:00:17,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:17,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-28 18:00:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:17,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:17,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:17,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 18:00:17,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:17,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:00:17,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:17,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:17,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:17,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 18:00:17,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 18:00:17,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:17,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 18:00:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:17,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:17,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:17,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:00:17,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:17,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:00:17,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:17,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:17,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:17,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:00:17,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:17,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:17,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:00:17,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39944486] [2020-10-28 18:00:17,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:00:17,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:00:17,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122019726] [2020-10-28 18:00:17,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:00:17,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:00:17,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:00:17,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:00:17,210 INFO L87 Difference]: Start difference. First operand 10471 states and 16468 transitions. Second operand 10 states. [2020-10-28 18:00:17,944 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:00:18,667 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-28 18:00:19,725 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-28 18:00:21,130 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-28 18:00:27,371 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:00:28,026 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:00:28,370 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:29,027 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:00:29,456 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:00:30,101 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:30,988 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:00:31,623 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:00:32,176 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:32,914 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:00:34,054 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:00:34,437 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:34,965 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:00:37,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:00:37,159 INFO L93 Difference]: Finished difference Result 41518 states and 65393 transitions. [2020-10-28 18:00:37,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 18:00:37,160 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 151 [2020-10-28 18:00:37,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:00:37,273 INFO L225 Difference]: With dead ends: 41518 [2020-10-28 18:00:37,273 INFO L226 Difference]: Without dead ends: 31790 [2020-10-28 18:00:37,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-28 18:00:37,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31790 states. [2020-10-28 18:00:39,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31790 to 27736. [2020-10-28 18:00:39,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27736 states. [2020-10-28 18:00:39,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27736 states to 27736 states and 43222 transitions. [2020-10-28 18:00:39,678 INFO L78 Accepts]: Start accepts. Automaton has 27736 states and 43222 transitions. Word has length 151 [2020-10-28 18:00:39,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:00:39,679 INFO L481 AbstractCegarLoop]: Abstraction has 27736 states and 43222 transitions. [2020-10-28 18:00:39,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 18:00:39,679 INFO L276 IsEmpty]: Start isEmpty. Operand 27736 states and 43222 transitions. [2020-10-28 18:00:39,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-28 18:00:39,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:00:39,727 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:00:39,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 18:00:39,728 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:00:39,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:00:39,728 INFO L82 PathProgramCache]: Analyzing trace with hash 2056284078, now seen corresponding path program 1 times [2020-10-28 18:00:39,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:00:39,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1188546224] [2020-10-28 18:00:39,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:00:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:39,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:39,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:40,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:40,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:40,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:42,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:43,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:44,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:44,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-28 18:00:44,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 18:00:44,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-28 18:00:44,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:44,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:00:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:00:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-28 18:00:44,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:45,519 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:00:45,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:00:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:45,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:45,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:45,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:00:45,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:45,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 18:00:45,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:45,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:45,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:45,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:45,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:45,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:45,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:00:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:45,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:45,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:45,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 18:00:45,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:45,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-28 18:00:45,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:45,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:45,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:00:45,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:45,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 18:00:45,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:45,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 18:00:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:45,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:45,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:45,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:00:45,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:45,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:00:45,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:45,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:45,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:45,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:45,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:00:45,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:45,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 18:00:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:45,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:45,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:45,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:45,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:45,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:00:45,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:45,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:45,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:45,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:45,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:00:45,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:45,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-28 18:00:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:45,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:45,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:45,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:45,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:45,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:00:45,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:45,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:45,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:45,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:45,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:00:45,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:45,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 18:00:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:45,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:45,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:45,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 18:00:45,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:45,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:00:45,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:45,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:45,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:45,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:45,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 18:00:45,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:45,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-28 18:00:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:45,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:46,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:46,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 18:00:46,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:46,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:00:46,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:46,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:46,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:46,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:00:46,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:00:46,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:46,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-28 18:00:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:46,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:46,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:46,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:00:46,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:46,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:00:46,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:46,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:46,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:00:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:46,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:46,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:00:46,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1188546224] [2020-10-28 18:00:46,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:00:46,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:00:46,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522973509] [2020-10-28 18:00:46,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:00:46,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:00:46,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:00:46,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:00:46,082 INFO L87 Difference]: Start difference. First operand 27736 states and 43222 transitions. Second operand 10 states. [2020-10-28 18:00:46,811 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:00:47,548 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-28 18:00:48,396 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-28 18:00:49,803 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-28 18:00:58,527 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:00:59,077 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:00:59,437 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:00,106 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:00,601 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:01,259 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:01,974 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:02,667 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:03,224 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:03,816 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:04,810 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:05,150 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:05,589 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:09,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:01:09,004 INFO L93 Difference]: Finished difference Result 112602 states and 176254 transitions. [2020-10-28 18:01:09,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 18:01:09,005 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 152 [2020-10-28 18:01:09,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:01:09,335 INFO L225 Difference]: With dead ends: 112602 [2020-10-28 18:01:09,335 INFO L226 Difference]: Without dead ends: 86566 [2020-10-28 18:01:09,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-28 18:01:09,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86566 states. [2020-10-28 18:01:15,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86566 to 76136. [2020-10-28 18:01:15,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76136 states. [2020-10-28 18:01:15,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76136 states to 76136 states and 117806 transitions. [2020-10-28 18:01:15,641 INFO L78 Accepts]: Start accepts. Automaton has 76136 states and 117806 transitions. Word has length 152 [2020-10-28 18:01:15,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:01:15,641 INFO L481 AbstractCegarLoop]: Abstraction has 76136 states and 117806 transitions. [2020-10-28 18:01:15,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 18:01:15,641 INFO L276 IsEmpty]: Start isEmpty. Operand 76136 states and 117806 transitions. [2020-10-28 18:01:15,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-28 18:01:15,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:01:15,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:01:15,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 18:01:15,751 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:01:15,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:01:15,752 INFO L82 PathProgramCache]: Analyzing trace with hash -373980278, now seen corresponding path program 1 times [2020-10-28 18:01:15,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:01:15,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1296750402] [2020-10-28 18:01:15,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:01:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:15,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:15,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:16,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:16,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:16,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:18,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:19,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:20,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:20,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-28 18:01:20,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 18:01:20,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-28 18:01:20,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:20,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:20,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:01:20,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:01:20,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-28 18:01:20,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:21,470 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:01:21,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:01:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:21,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:21,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:21,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:01:21,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:21,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:01:21,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:21,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:01:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:01:21,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:21,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:01:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:21,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:21,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:21,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 18:01:21,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:21,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-28 18:01:21,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:21,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:21,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:01:21,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:21,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 18:01:21,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:21,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 18:01:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:21,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:21,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:21,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:01:21,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:21,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:01:21,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:21,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:21,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:21,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:21,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:01:21,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:21,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 18:01:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:21,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:21,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:21,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:01:21,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:21,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:01:21,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:21,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:21,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:21,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:21,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:01:21,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:21,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-28 18:01:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:21,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:21,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:21,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:01:21,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:21,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:01:21,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:21,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:21,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:21,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:21,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:01:21,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:21,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 18:01:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:21,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:21,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:21,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 18:01:21,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:21,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:01:21,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:21,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:21,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:21,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:21,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 18:01:21,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:21,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-28 18:01:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:21,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:21,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:21,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 18:01:21,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:21,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:01:21,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:21,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 18:01:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:01:21,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:22,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-28 18:01:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:22,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:22,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:22,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:01:22,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:22,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:01:22,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:22,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:22,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:01:22,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:01:22,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:01:22,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:22,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:01:22,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1296750402] [2020-10-28 18:01:22,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:01:22,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:01:22,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677245253] [2020-10-28 18:01:22,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:01:22,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:01:22,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:01:22,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:01:22,068 INFO L87 Difference]: Start difference. First operand 76136 states and 117806 transitions. Second operand 10 states. [2020-10-28 18:01:22,807 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:01:23,561 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-28 18:01:24,514 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-28 18:01:25,946 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-28 18:01:39,469 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:01:40,088 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:40,506 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:41,278 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:41,969 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:42,709 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:43,506 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:44,498 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 125