/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=SHALLOWEST --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/list-simple/sll2c_prepend_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:24:14,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:24:14,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:24:14,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:24:14,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:24:14,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:24:14,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:24:14,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:24:14,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:24:14,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:24:14,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:24:14,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:24:14,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:24:14,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:24:14,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:24:14,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:24:14,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:24:14,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:24:14,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:24:14,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:24:14,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:24:14,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:24:14,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:24:14,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:24:14,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:24:14,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:24:14,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:24:14,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:24:14,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:24:14,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:24:14,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:24:14,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:24:14,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:24:14,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:24:14,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:24:14,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:24:14,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:24:14,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:24:14,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:24:14,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:24:14,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:24:14,677 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 [2020-10-27 01:24:14,735 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:24:14,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:24:14,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:24:14,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:24:14,740 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:24:14,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:24:14,742 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:24:14,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:24:14,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:24:14,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:24:14,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:24:14,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:24:14,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:24:14,744 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:24:14,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:24:14,745 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:24:14,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:24:14,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:24:14,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:24:14,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:24:14,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:24:14,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:24:14,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:24:14,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:24:14,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:24:14,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:24:14,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:24:14,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:24:14,748 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:24:14,748 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:24:15,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:24:15,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:24:15,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:24:15,230 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:24:15,231 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:24:15,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_prepend_equal.i [2020-10-27 01:24:15,322 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91d4d0d7c/35169730c23340b783896dcfd40dc580/FLAG9850052e2 [2020-10-27 01:24:16,080 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:24:16,081 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-simple/sll2c_prepend_equal.i [2020-10-27 01:24:16,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91d4d0d7c/35169730c23340b783896dcfd40dc580/FLAG9850052e2 [2020-10-27 01:24:16,316 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91d4d0d7c/35169730c23340b783896dcfd40dc580 [2020-10-27 01:24:16,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:24:16,327 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:24:16,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:24:16,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:24:16,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:24:16,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:24:16" (1/1) ... [2020-10-27 01:24:16,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3733cb12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:24:16, skipping insertion in model container [2020-10-27 01:24:16,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:24:16" (1/1) ... [2020-10-27 01:24:16,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:24:16,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:24:16,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:24:16,772 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:24:16,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:24:16,948 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:24:16,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:24:16 WrapperNode [2020-10-27 01:24:16,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:24:16,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:24:16,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:24:16,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:24:16,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:24:16" (1/1) ... [2020-10-27 01:24:16,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:24:16" (1/1) ... [2020-10-27 01:24:17,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:24:16" (1/1) ... [2020-10-27 01:24:17,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:24:16" (1/1) ... [2020-10-27 01:24:17,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:24:16" (1/1) ... [2020-10-27 01:24:17,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:24:16" (1/1) ... [2020-10-27 01:24:17,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:24:16" (1/1) ... [2020-10-27 01:24:17,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:24:17,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:24:17,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:24:17,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:24:17,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:24:16" (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 [2020-10-27 01:24:17,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:24:17,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:24:17,148 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:24:17,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-27 01:24:17,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-27 01:24:17,149 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-10-27 01:24:17,149 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-10-27 01:24:17,149 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2020-10-27 01:24:17,149 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2020-10-27 01:24:17,149 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_prepend [2020-10-27 01:24:17,149 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:24:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:24:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:24:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 01:24:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 01:24:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:24:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:24:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-27 01:24:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-27 01:24:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-27 01:24:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-27 01:24:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-27 01:24:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-27 01:24:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-27 01:24:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-27 01:24:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-27 01:24:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-27 01:24:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-27 01:24:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-27 01:24:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-27 01:24:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-27 01:24:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-27 01:24:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-27 01:24:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-27 01:24:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-27 01:24:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-27 01:24:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-27 01:24:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-27 01:24:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-27 01:24:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-27 01:24:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-27 01:24:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-27 01:24:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-27 01:24:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-27 01:24:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-27 01:24:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-27 01:24:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-27 01:24:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-27 01:24:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-27 01:24:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-27 01:24:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-27 01:24:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-27 01:24:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-27 01:24:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-27 01:24:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-27 01:24:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-27 01:24:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-27 01:24:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-27 01:24:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-27 01:24:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-27 01:24:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-27 01:24:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-27 01:24:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-27 01:24:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-27 01:24:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-27 01:24:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-27 01:24:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-27 01:24:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-27 01:24:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-27 01:24:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 01:24:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 01:24:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-27 01:24:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 01:24:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-27 01:24:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-27 01:24:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-27 01:24:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-27 01:24:17,160 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-27 01:24:17,160 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-27 01:24:17,160 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-27 01:24:17,160 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-27 01:24:17,160 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 01:24:17,160 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-27 01:24:17,161 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-27 01:24:17,161 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-27 01:24:17,161 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-27 01:24:17,161 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-27 01:24:17,161 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-27 01:24:17,161 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-27 01:24:17,161 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-27 01:24:17,162 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-27 01:24:17,162 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-27 01:24:17,162 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-27 01:24:17,162 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-27 01:24:17,162 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-27 01:24:17,162 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-27 01:24:17,162 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-27 01:24:17,163 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-27 01:24:17,163 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-27 01:24:17,163 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-27 01:24:17,163 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-27 01:24:17,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-27 01:24:17,163 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-27 01:24:17,163 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-27 01:24:17,163 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-27 01:24:17,164 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-27 01:24:17,164 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-27 01:24:17,164 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-27 01:24:17,164 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-27 01:24:17,164 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-27 01:24:17,164 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-27 01:24:17,164 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-27 01:24:17,164 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-27 01:24:17,165 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-27 01:24:17,165 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-27 01:24:17,165 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-27 01:24:17,165 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-27 01:24:17,165 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-27 01:24:17,165 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-27 01:24:17,165 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-27 01:24:17,166 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-27 01:24:17,166 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-10-27 01:24:17,166 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-10-27 01:24:17,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 01:24:17,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 01:24:17,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:24:17,167 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2020-10-27 01:24:17,167 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2020-10-27 01:24:17,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 01:24:17,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:24:17,167 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_prepend [2020-10-27 01:24:17,167 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:24:17,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 01:24:17,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:24:17,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:24:17,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:24:17,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:24:17,579 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-10-27 01:24:17,888 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:24:17,889 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-27 01:24:17,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:24:17 BoogieIcfgContainer [2020-10-27 01:24:17,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:24:17,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:24:17,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:24:17,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:24:17,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:24:16" (1/3) ... [2020-10-27 01:24:17,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46be5fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:24:17, skipping insertion in model container [2020-10-27 01:24:17,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:24:16" (2/3) ... [2020-10-27 01:24:17,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46be5fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:24:17, skipping insertion in model container [2020-10-27 01:24:17,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:24:17" (3/3) ... [2020-10-27 01:24:17,912 INFO L111 eAbstractionObserver]: Analyzing ICFG sll2c_prepend_equal.i [2020-10-27 01:24:17,928 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:24:17,934 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:24:17,949 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:24:17,989 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:24:17,989 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:24:17,989 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:24:17,989 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:24:17,989 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:24:17,989 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:24:17,990 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:24:17,990 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:24:18,010 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2020-10-27 01:24:18,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-27 01:24:18,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:24:18,019 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:24:18,020 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:24:18,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:24:18,027 INFO L82 PathProgramCache]: Analyzing trace with hash -110591961, now seen corresponding path program 1 times [2020-10-27 01:24:18,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:24:18,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909703090] [2020-10-27 01:24:18,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:24:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:18,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:18,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:18,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:19,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:20,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:20,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 01:24:20,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:24:20,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2036 [2020-10-27 01:24:20,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:20,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 01:24:20,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:24:20,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-27 01:24:20,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 01:24:20,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:24:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:20,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:20,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:20,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:24:20,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:20,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 01:24:20,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:20,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:24:20,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:20,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:24:20,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:20,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:24:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:20,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:20,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:20,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:20,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:20,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 01:24:20,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 01:24:20,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-10-27 01:24:20,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:20,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 01:24:20,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:20,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 01:24:20,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:20,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:24:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:20,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:20,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:20,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:24:20,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:20,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-27 01:24:20,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:20,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:24:20,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:20,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:24:20,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:21,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:24:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:21,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:21,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:21,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 01:24:21,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:21,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-27 01:24:21,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:21,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 01:24:21,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:24:21,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 01:24:21,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:21,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:24:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:21,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:21,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:21,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:24:21,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:21,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-27 01:24:21,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:21,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:24:21,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:24:21,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:24:21,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:24:21,761 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 01:24:21,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909703090] [2020-10-27 01:24:21,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:24:21,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-27 01:24:21,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042853806] [2020-10-27 01:24:21,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 01:24:21,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:24:21,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 01:24:21,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2020-10-27 01:24:21,806 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 18 states. [2020-10-27 01:24:23,025 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-10-27 01:24:23,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:24:23,432 INFO L93 Difference]: Finished difference Result 115 states and 152 transitions. [2020-10-27 01:24:23,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 01:24:23,434 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 38 [2020-10-27 01:24:23,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:24:23,445 INFO L225 Difference]: With dead ends: 115 [2020-10-27 01:24:23,445 INFO L226 Difference]: Without dead ends: 52 [2020-10-27 01:24:23,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=89, Invalid=667, Unknown=0, NotChecked=0, Total=756 [2020-10-27 01:24:23,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-27 01:24:23,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-10-27 01:24:23,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-27 01:24:23,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2020-10-27 01:24:23,505 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 38 [2020-10-27 01:24:23,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:24:23,505 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2020-10-27 01:24:23,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 01:24:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2020-10-27 01:24:23,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-27 01:24:23,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:24:23,509 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:24:23,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:24:23,509 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:24:23,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:24:23,510 INFO L82 PathProgramCache]: Analyzing trace with hash 2064520570, now seen corresponding path program 1 times [2020-10-27 01:24:23,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:24:23,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659948779] [2020-10-27 01:24:23,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:24:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:23,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:23,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:24,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:27,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:27,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 01:24:27,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 01:24:27,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3637 [2020-10-27 01:24:27,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:27,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 01:24:27,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:24:27,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 01:24:27,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:27,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:24:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:27,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:27,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:27,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:24:27,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:27,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:24:27,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:27,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:24:27,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:27,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:24:27,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:27,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:24:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:27,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:27,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:27,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:24:27,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:27,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-27 01:24:27,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:27,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 01:24:27,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:27,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 01:24:27,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:27,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:24:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:27,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:27,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:27,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:24:27,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:27,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:24:27,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:27,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:24:27,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:27,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:24:27,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:27,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:24:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:27,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:27,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:27,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:24:27,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:27,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 01:24:27,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:27,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:24:27,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:27,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:24:27,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:27,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:24:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:27,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:27,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:27,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 01:24:27,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:27,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-27 01:24:27,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 01:24:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:24:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 01:24:27,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:27,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:24:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:27,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:27,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:27,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:24:27,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:27,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 01:24:27,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:27,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:24:27,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:24:27,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:24:27,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:27,893 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 01:24:27,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659948779] [2020-10-27 01:24:27,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:24:27,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-27 01:24:27,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301126784] [2020-10-27 01:24:27,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 01:24:27,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:24:27,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 01:24:27,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-10-27 01:24:27,897 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand 18 states. [2020-10-27 01:24:29,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:24:29,019 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2020-10-27 01:24:29,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 01:24:29,021 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 46 [2020-10-27 01:24:29,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:24:29,025 INFO L225 Difference]: With dead ends: 62 [2020-10-27 01:24:29,026 INFO L226 Difference]: Without dead ends: 50 [2020-10-27 01:24:29,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2020-10-27 01:24:29,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-27 01:24:29,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2020-10-27 01:24:29,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-27 01:24:29,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2020-10-27 01:24:29,051 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 46 [2020-10-27 01:24:29,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:24:29,052 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2020-10-27 01:24:29,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 01:24:29,052 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2020-10-27 01:24:29,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-27 01:24:29,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:24:29,055 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:24:29,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:24:29,055 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:24:29,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:24:29,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1509682438, now seen corresponding path program 1 times [2020-10-27 01:24:29,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:24:29,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447407764] [2020-10-27 01:24:29,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:24:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:29,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:29,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:31,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:31,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 01:24:31,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:24:31,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2550 [2020-10-27 01:24:31,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:31,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:24:31,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:24:31,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 01:24:31,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:31,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:24:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:31,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:31,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:31,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:24:31,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:31,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:24:31,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:31,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:24:31,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:31,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:24:31,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:31,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:24:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:31,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:31,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:31,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 01:24:31,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:31,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 01:24:31,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:31,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:24:31,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 01:24:31,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 01:24:31,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:31,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:24:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:31,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:31,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:31,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:24:31,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:31,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 01:24:31,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:24:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:24:31,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:31,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:24:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:31,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:31,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:31,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 01:24:31,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:31,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 01:24:31,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:31,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:24:31,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 01:24:31,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:24:31,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:31,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:24:31,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:31,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:31,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:31,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:24:31,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:31,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:24:31,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:31,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:24:31,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:31,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:24:31,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:24:31,858 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 01:24:31,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1447407764] [2020-10-27 01:24:31,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:24:31,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 01:24:31,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603851523] [2020-10-27 01:24:31,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 01:24:31,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:24:31,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 01:24:31,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:24:31,862 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 7 states. [2020-10-27 01:24:32,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:24:32,110 INFO L93 Difference]: Finished difference Result 74 states and 83 transitions. [2020-10-27 01:24:32,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 01:24:32,110 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-10-27 01:24:32,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:24:32,112 INFO L225 Difference]: With dead ends: 74 [2020-10-27 01:24:32,112 INFO L226 Difference]: Without dead ends: 45 [2020-10-27 01:24:32,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-27 01:24:32,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-27 01:24:32,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2020-10-27 01:24:32,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-27 01:24:32,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2020-10-27 01:24:32,121 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 41 [2020-10-27 01:24:32,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:24:32,122 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2020-10-27 01:24:32,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 01:24:32,122 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2020-10-27 01:24:32,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-27 01:24:32,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:24:32,124 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:24:32,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 01:24:32,124 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:24:32,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:24:32,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1660553086, now seen corresponding path program 1 times [2020-10-27 01:24:32,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:24:32,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2135275053] [2020-10-27 01:24:32,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:24:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:32,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:32,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:36,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:36,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-27 01:24:36,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:24:36,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4414 [2020-10-27 01:24:36,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:36,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-27 01:24:36,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:24:36,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-27 01:24:36,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:36,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:24:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:36,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:36,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:36,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:24:36,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:36,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:24:36,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:36,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:24:36,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:36,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:24:36,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:36,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:24:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:36,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:36,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:36,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:24:36,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-27 01:24:36,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 01:24:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 01:24:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:36,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:24:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:36,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:36,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:36,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:24:36,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:36,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:24:36,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:36,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:24:36,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:36,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:24:36,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:24:36,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:24:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:36,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:36,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:36,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:24:36,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:36,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 01:24:36,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:36,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:24:36,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:36,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:24:36,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:37,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:24:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:37,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:37,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:37,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 01:24:37,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:37,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-27 01:24:37,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:37,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 01:24:37,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:24:37,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 01:24:37,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:37,825 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-10-27 01:24:37,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:24:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:37,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:37,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:37,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:24:37,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:37,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-27 01:24:37,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:37,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 01:24:37,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:24:37,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:24:37,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:38,135 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 01:24:38,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2135275053] [2020-10-27 01:24:38,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:24:38,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-27 01:24:38,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296169704] [2020-10-27 01:24:38,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-27 01:24:38,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:24:38,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-27 01:24:38,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2020-10-27 01:24:38,137 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 22 states. [2020-10-27 01:24:39,045 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2020-10-27 01:24:39,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:24:39,531 INFO L93 Difference]: Finished difference Result 62 states and 71 transitions. [2020-10-27 01:24:39,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 01:24:39,532 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 49 [2020-10-27 01:24:39,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:24:39,534 INFO L225 Difference]: With dead ends: 62 [2020-10-27 01:24:39,534 INFO L226 Difference]: Without dead ends: 58 [2020-10-27 01:24:39,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2020-10-27 01:24:39,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-27 01:24:39,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 51. [2020-10-27 01:24:39,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-27 01:24:39,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2020-10-27 01:24:39,546 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 49 [2020-10-27 01:24:39,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:24:39,547 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2020-10-27 01:24:39,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-27 01:24:39,547 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2020-10-27 01:24:39,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-27 01:24:39,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:24:39,549 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:24:39,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 01:24:39,549 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:24:39,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:24:39,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1786371933, now seen corresponding path program 1 times [2020-10-27 01:24:39,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:24:39,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498465990] [2020-10-27 01:24:39,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:24:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:39,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:40,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:42,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:42,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-27 01:24:42,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:24:42,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2692 [2020-10-27 01:24:42,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:42,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 01:24:42,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:24:42,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 01:24:42,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:42,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:24:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:42,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:42,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:42,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:24:42,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:42,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:24:42,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:42,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:24:42,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:42,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:24:42,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:42,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:24:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:42,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:42,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:42,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:24:42,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:42,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-27 01:24:42,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:42,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 01:24:42,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:42,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 01:24:42,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:42,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:24:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:42,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:42,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:42,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:24:42,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:42,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 01:24:42,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:42,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:24:42,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:42,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:24:42,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:42,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:24:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:42,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:42,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:42,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:24:42,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:42,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 01:24:42,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:42,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:24:42,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:42,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:24:42,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:42,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:24:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:42,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:43,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:43,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 01:24:43,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:43,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-27 01:24:43,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:43,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 01:24:43,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:24:43,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 01:24:43,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:43,727 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2020-10-27 01:24:44,258 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2020-10-27 01:24:44,682 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 77 [2020-10-27 01:24:45,129 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 86 [2020-10-27 01:24:45,546 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 68 [2020-10-27 01:24:45,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:24:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:45,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:45,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:45,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:24:45,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:45,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-27 01:24:45,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:45,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 01:24:45,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:24:45,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:24:45,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:47,100 WARN L193 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 86 [2020-10-27 01:24:47,498 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 01:24:47,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498465990] [2020-10-27 01:24:47,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:24:47,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-27 01:24:47,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940105697] [2020-10-27 01:24:47,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-27 01:24:47,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:24:47,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-27 01:24:47,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=548, Unknown=0, NotChecked=0, Total=600 [2020-10-27 01:24:47,501 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand 25 states. [2020-10-27 01:24:48,133 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-27 01:24:49,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:24:49,809 INFO L93 Difference]: Finished difference Result 78 states and 93 transitions. [2020-10-27 01:24:49,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 01:24:49,810 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 51 [2020-10-27 01:24:49,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:24:49,812 INFO L225 Difference]: With dead ends: 78 [2020-10-27 01:24:49,812 INFO L226 Difference]: Without dead ends: 74 [2020-10-27 01:24:49,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=89, Invalid=903, Unknown=0, NotChecked=0, Total=992 [2020-10-27 01:24:49,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-27 01:24:49,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 64. [2020-10-27 01:24:49,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-27 01:24:49,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 76 transitions. [2020-10-27 01:24:49,831 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 76 transitions. Word has length 51 [2020-10-27 01:24:49,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:24:49,831 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 76 transitions. [2020-10-27 01:24:49,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-27 01:24:49,832 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 76 transitions. [2020-10-27 01:24:49,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-27 01:24:49,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:24:49,835 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:24:49,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 01:24:49,836 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:24:49,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:24:49,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1036679483, now seen corresponding path program 1 times [2020-10-27 01:24:49,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:24:49,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62963475] [2020-10-27 01:24:49,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:24:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:49,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:50,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:50,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:51,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:54,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:54,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 01:24:54,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:24:54,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 01:24:54,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:54,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-27 01:24:54,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:24:54,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 01:24:54,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:54,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:24:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:54,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:54,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:54,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:24:54,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:54,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:24:54,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:54,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:24:54,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:54,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:24:54,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:55,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:24:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:55,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:55,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:55,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:24:55,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:55,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-27 01:24:55,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:55,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 01:24:55,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:55,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 01:24:55,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:55,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:24:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:55,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:55,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:55,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:24:55,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:55,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:24:55,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:55,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:24:55,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:55,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:24:55,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:55,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:24:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:55,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:55,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:55,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:24:55,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:55,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 01:24:55,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:55,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:24:55,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:24:55,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:24:55,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:55,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:24:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:55,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:55,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:55,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 01:24:55,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:55,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-27 01:24:55,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:55,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 01:24:55,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:24:55,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 01:24:55,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:55,777 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-10-27 01:24:55,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:24:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:55,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:55,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:24:55,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:24:55,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:24:55,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 01:24:55,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:24:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:24:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:24:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:24:55,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:24:56,017 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 01:24:56,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62963475] [2020-10-27 01:24:56,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:24:56,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-27 01:24:56,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304985591] [2020-10-27 01:24:56,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-27 01:24:56,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:24:56,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-27 01:24:56,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=461, Unknown=0, NotChecked=0, Total=506 [2020-10-27 01:24:56,020 INFO L87 Difference]: Start difference. First operand 64 states and 76 transitions. Second operand 23 states. [2020-10-27 01:24:56,937 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-10-27 01:24:57,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:24:57,404 INFO L93 Difference]: Finished difference Result 83 states and 98 transitions. [2020-10-27 01:24:57,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 01:24:57,405 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 52 [2020-10-27 01:24:57,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:24:57,408 INFO L225 Difference]: With dead ends: 83 [2020-10-27 01:24:57,408 INFO L226 Difference]: Without dead ends: 78 [2020-10-27 01:24:57,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=96, Invalid=960, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 01:24:57,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-27 01:24:57,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2020-10-27 01:24:57,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-27 01:24:57,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 81 transitions. [2020-10-27 01:24:57,427 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 81 transitions. Word has length 52 [2020-10-27 01:24:57,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:24:57,428 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 81 transitions. [2020-10-27 01:24:57,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-27 01:24:57,428 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 81 transitions. [2020-10-27 01:24:57,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 01:24:57,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:24:57,430 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:24:57,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 01:24:57,430 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:24:57,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:24:57,431 INFO L82 PathProgramCache]: Analyzing trace with hash -2034507368, now seen corresponding path program 1 times [2020-10-27 01:24:57,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:24:57,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967324975] [2020-10-27 01:24:57,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:24:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:24:57,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:58,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:24:59,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:02,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:02,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 01:25:02,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 01:25:02,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 01:25:02,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:02,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 01:25:02,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:25:02,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 01:25:02,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:02,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:25:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:02,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:02,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:02,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:25:02,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:02,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:25:02,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:02,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:25:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:25:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:25:02,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:02,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:25:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:02,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:02,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:02,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:25:02,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:02,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-27 01:25:02,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:02,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 01:25:02,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:25:02,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 01:25:02,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:02,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:25:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:02,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:02,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:02,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:25:02,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:02,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 01:25:02,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:02,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:25:02,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:25:02,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:25:02,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:02,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:25:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:02,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:02,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:02,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:25:02,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:02,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 01:25:02,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:02,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:25:02,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:25:02,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:25:02,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:02,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:25:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:02,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:03,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:03,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 01:25:03,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:03,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-27 01:25:03,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:03,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 01:25:03,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:25:03,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 01:25:03,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:03,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:25:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:03,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:03,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:03,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:25:03,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:03,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 01:25:03,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:25:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:25:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:25:03,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:03,595 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 01:25:03,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967324975] [2020-10-27 01:25:03,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:25:03,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-27 01:25:03,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752246021] [2020-10-27 01:25:03,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-27 01:25:03,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:25:03,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-27 01:25:03,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2020-10-27 01:25:03,598 INFO L87 Difference]: Start difference. First operand 69 states and 81 transitions. Second operand 23 states. [2020-10-27 01:25:05,050 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 45 [2020-10-27 01:25:05,300 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2020-10-27 01:25:05,528 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-10-27 01:25:05,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:25:05,883 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2020-10-27 01:25:05,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 01:25:05,884 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 53 [2020-10-27 01:25:05,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:25:05,890 INFO L225 Difference]: With dead ends: 84 [2020-10-27 01:25:05,890 INFO L226 Difference]: Without dead ends: 70 [2020-10-27 01:25:05,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=119, Invalid=1071, Unknown=0, NotChecked=0, Total=1190 [2020-10-27 01:25:05,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-27 01:25:05,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2020-10-27 01:25:05,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-27 01:25:05,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2020-10-27 01:25:05,925 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 53 [2020-10-27 01:25:05,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:25:05,926 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2020-10-27 01:25:05,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-27 01:25:05,928 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2020-10-27 01:25:05,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 01:25:05,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:25:05,933 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:25:05,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 01:25:05,934 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:25:05,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:25:05,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1433437320, now seen corresponding path program 2 times [2020-10-27 01:25:05,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:25:05,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549825436] [2020-10-27 01:25:05,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:25:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:05,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:06,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:07,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:08,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:10,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:10,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 01:25:10,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:25:10,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 01:25:10,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:10,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 01:25:10,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:25:10,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-27 01:25:10,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:11,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:25:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:11,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:11,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:11,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:25:11,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:11,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:25:11,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:11,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:25:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:25:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:25:11,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:11,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:25:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:11,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:11,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:11,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:25:11,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:11,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-27 01:25:11,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 01:25:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:25:11,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 01:25:11,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:11,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:25:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:11,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:11,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:11,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:25:11,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:11,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 01:25:11,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:11,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:25:11,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:25:11,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:25:11,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:11,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:25:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:11,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:11,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:11,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:25:11,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:11,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 01:25:11,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:11,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:25:11,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:25:11,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:25:11,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:11,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:25:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:11,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:11,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:11,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 01:25:11,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:11,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-27 01:25:11,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:11,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 01:25:11,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:25:11,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 01:25:11,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:12,147 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-27 01:25:12,313 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-27 01:25:12,477 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-10-27 01:25:12,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:25:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:12,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:12,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:12,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:25:12,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:12,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 01:25:12,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:12,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:25:12,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:25:12,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:25:12,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:12,924 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-10-27 01:25:12,945 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 01:25:12,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549825436] [2020-10-27 01:25:12,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:25:12,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-27 01:25:12,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858215877] [2020-10-27 01:25:12,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-27 01:25:12,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:25:12,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-27 01:25:12,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2020-10-27 01:25:12,949 INFO L87 Difference]: Start difference. First operand 69 states and 80 transitions. Second operand 25 states. [2020-10-27 01:25:14,395 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2020-10-27 01:25:14,724 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-10-27 01:25:15,018 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2020-10-27 01:25:15,490 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2020-10-27 01:25:15,946 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2020-10-27 01:25:16,293 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-27 01:25:16,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:25:16,727 INFO L93 Difference]: Finished difference Result 86 states and 101 transitions. [2020-10-27 01:25:16,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 01:25:16,728 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 53 [2020-10-27 01:25:16,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:25:16,730 INFO L225 Difference]: With dead ends: 86 [2020-10-27 01:25:16,730 INFO L226 Difference]: Without dead ends: 76 [2020-10-27 01:25:16,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=139, Invalid=1343, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 01:25:16,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-27 01:25:16,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2020-10-27 01:25:16,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-27 01:25:16,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2020-10-27 01:25:16,769 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 86 transitions. Word has length 53 [2020-10-27 01:25:16,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:25:16,769 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 86 transitions. [2020-10-27 01:25:16,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-27 01:25:16,769 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 86 transitions. [2020-10-27 01:25:16,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-27 01:25:16,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:25:16,771 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:25:16,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 01:25:16,771 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:25:16,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:25:16,772 INFO L82 PathProgramCache]: Analyzing trace with hash 27294437, now seen corresponding path program 3 times [2020-10-27 01:25:16,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:25:16,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888462567] [2020-10-27 01:25:16,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:25:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:16,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:16,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:18,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:18,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:21,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:21,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-27 01:25:21,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:25:21,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-27 01:25:21,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:21,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-27 01:25:21,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:25:21,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-27 01:25:21,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:21,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:25:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:21,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:21,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:21,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:25:21,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:21,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:25:21,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:21,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:25:21,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:25:21,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:25:21,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:21,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:25:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:22,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:22,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:22,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-27 01:25:22,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:22,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-27 01:25:22,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 01:25:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:25:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 01:25:22,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:22,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:25:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:22,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:22,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:22,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:25:22,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:22,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 01:25:22,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:22,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:25:22,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:25:22,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:25:22,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:22,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:25:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:22,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:22,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:22,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:25:22,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:22,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 01:25:22,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:22,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:25:22,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:25:22,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:25:22,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:22,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 01:25:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:22,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:22,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:22,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:25:22,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:22,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 01:25:22,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:22,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:25:22,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:25:22,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:25:22,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:23,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 01:25:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:23,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:23,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:23,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 01:25:23,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:23,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-27 01:25:23,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:23,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 01:25:23,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:25:23,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 01:25:23,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:23,549 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-10-27 01:25:23,742 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-10-27 01:25:23,914 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-10-27 01:25:24,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:25:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:24,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:24,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:24,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:25:24,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:24,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-27 01:25:24,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:24,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:25:24,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:25:24,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:25:24,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:24,473 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-10-27 01:25:24,500 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 01:25:24,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [888462567] [2020-10-27 01:25:24,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:25:24,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-27 01:25:24,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978198712] [2020-10-27 01:25:24,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-27 01:25:24,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:25:24,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-27 01:25:24,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2020-10-27 01:25:24,502 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. Second operand 28 states. [2020-10-27 01:25:25,307 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2020-10-27 01:25:26,383 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 44 [2020-10-27 01:25:26,970 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 52 [2020-10-27 01:25:27,491 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2020-10-27 01:25:28,069 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2020-10-27 01:25:28,464 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2020-10-27 01:25:29,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:25:29,017 INFO L93 Difference]: Finished difference Result 86 states and 100 transitions. [2020-10-27 01:25:29,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-27 01:25:29,018 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 59 [2020-10-27 01:25:29,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:25:29,021 INFO L225 Difference]: With dead ends: 86 [2020-10-27 01:25:29,021 INFO L226 Difference]: Without dead ends: 76 [2020-10-27 01:25:29,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=171, Invalid=1809, Unknown=0, NotChecked=0, Total=1980 [2020-10-27 01:25:29,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-27 01:25:29,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2020-10-27 01:25:29,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-27 01:25:29,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 85 transitions. [2020-10-27 01:25:29,037 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 85 transitions. Word has length 59 [2020-10-27 01:25:29,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:25:29,037 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 85 transitions. [2020-10-27 01:25:29,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-27 01:25:29,037 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 85 transitions. [2020-10-27 01:25:29,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-27 01:25:29,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:25:29,039 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:25:29,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 01:25:29,039 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:25:29,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:25:29,040 INFO L82 PathProgramCache]: Analyzing trace with hash -2066518518, now seen corresponding path program 1 times [2020-10-27 01:25:29,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:25:29,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782911277] [2020-10-27 01:25:29,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:25:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:29,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:29,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:30,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:32,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:32,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 01:25:32,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 01:25:32,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3807 [2020-10-27 01:25:32,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:32,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 01:25:32,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:25:32,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 01:25:32,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:33,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:25:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:33,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:33,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:33,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:25:33,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:33,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:25:33,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:33,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:25:33,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:25:33,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:25:33,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:33,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:25:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:33,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:33,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:33,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:25:33,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:33,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-27 01:25:33,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:33,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 01:25:33,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:25:33,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 01:25:33,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:33,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:25:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:33,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:33,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:33,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:25:33,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:33,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 01:25:33,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:33,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:25:33,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:25:33,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:25:33,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:33,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:25:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:33,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:33,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:33,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:25:33,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:33,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 01:25:33,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:33,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:25:33,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:25:33,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:25:33,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:33,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:25:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:33,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:33,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:34,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:34,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 01:25:34,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:25:34,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-10-27 01:25:34,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:34,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 01:25:34,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:25:34,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 01:25:34,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:42,195 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2020-10-27 01:25:42,661 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2020-10-27 01:25:43,840 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-10-27 01:25:45,132 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 159 DAG size of output: 74 [2020-10-27 01:25:47,195 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse47 (@diff |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) (.cse57 (@diff |c_old(#memory_$Pointer$.offset)| |c_#memory_$Pointer$.offset|))) (let ((.cse259 (select |c_#memory_$Pointer$.offset| .cse57)) (.cse246 (select |c_#memory_$Pointer$.base| .cse47))) (let ((.cse288 (store |c_old(#memory_$Pointer$.base)| .cse47 .cse246)) (.cse301 (store |c_old(#memory_$Pointer$.offset)| .cse57 .cse259))) (let ((.cse46 (@diff .cse301 |c_#memory_$Pointer$.offset|)) (.cse67 (@diff .cse288 |c_#memory_$Pointer$.base|))) (let ((.cse216 (select |c_#memory_$Pointer$.base| .cse67)) (.cse128 (select |c_#memory_$Pointer$.offset| .cse46))) (let ((.cse303 (store .cse301 .cse46 .cse128)) (.cse286 (store .cse288 .cse67 .cse216))) (let ((.cse79 (@diff .cse286 |c_#memory_$Pointer$.base|)) (.cse52 (@diff .cse303 |c_#memory_$Pointer$.offset|))) (let ((.cse103 (select |c_#memory_$Pointer$.offset| .cse52)) (.cse156 (select |c_#memory_$Pointer$.base| .cse79))) (let ((.cse287 (store .cse286 .cse79 .cse156)) (.cse292 (store .cse303 .cse52 .cse103))) (let ((.cse51 (@diff .cse292 |c_#memory_$Pointer$.offset|)) (.cse61 (@diff .cse287 |c_#memory_$Pointer$.base|))) (let ((.cse302 (select |c_old(#memory_$Pointer$.offset)| .cse52)) (.cse300 (select |c_old(#memory_$Pointer$.offset)| .cse46)) (.cse161 (select |c_old(#memory_$Pointer$.base)| .cse79)) (.cse181 (select |c_old(#memory_$Pointer$.base)| .cse61)) (.cse183 (select |c_#memory_$Pointer$.base| .cse61)) (.cse295 (select |c_old(#memory_$Pointer$.offset)| .cse51)) (.cse194 (select |c_#memory_$Pointer$.offset| .cse51)) (.cse220 (select |c_old(#memory_$Pointer$.base)| .cse67)) (.cse244 (select |c_old(#memory_$Pointer$.base)| .cse47)) (.cse289 (select |c_old(#memory_$Pointer$.offset)| .cse57))) (let ((.cse25 (@diff .cse289 .cse259)) (.cse290 (@diff .cse244 .cse246)) (.cse294 (@diff .cse220 .cse216)) (.cse32 (@diff .cse295 .cse194)) (.cse297 (@diff .cse181 .cse183)) (.cse299 (@diff .cse161 .cse156)) (.cse2 (@diff .cse300 .cse128)) (.cse20 (@diff .cse302 .cse103))) (let ((.cse120 (select .cse103 .cse20)) (.cse141 (select .cse128 .cse2)) (.cse298 (select .cse156 .cse299)) (.cse296 (select .cse183 .cse297)) (.cse206 (select .cse194 .cse32)) (.cse293 (select .cse216 .cse294)) (.cse291 (select .cse246 .cse290)) (.cse271 (select .cse259 .cse25))) (let ((.cse273 (select .cse244 0)) (.cse280 (select .cse246 0)) (.cse283 (select .cse183 0)) (.cse276 (select .cse181 0)) (.cse278 (select .cse161 0)) (.cse285 (select .cse156 0)) (.cse279 (select .cse220 0)) (.cse274 (select .cse216 0)) (.cse269 (store .cse289 .cse25 .cse271)) (.cse247 (store .cse244 .cse290 .cse291)) (.cse248 (select |c_old(#memory_$Pointer$.offset)| .cse47)) (.cse240 (select |c_#memory_$Pointer$.offset| .cse47)) (.cse217 (store .cse220 .cse294 .cse293)) (.cse221 (select |c_old(#memory_$Pointer$.offset)| .cse67)) (.cse222 (select |c_#memory_$Pointer$.offset| .cse67)) (.cse203 (store .cse295 .cse32 .cse206)) (.cse184 (store .cse181 .cse297 .cse296)) (.cse175 (select |c_#memory_$Pointer$.offset| .cse61)) (.cse174 (select |c_old(#memory_$Pointer$.offset)| .cse61)) (.cse154 (select |c_old(#memory_$Pointer$.offset)| .cse79)) (.cse157 (store .cse161 .cse299 .cse298)) (.cse153 (select |c_#memory_$Pointer$.offset| .cse79)) (.cse132 (store .cse300 .cse2 .cse141)) (.cse112 (store .cse302 .cse20 .cse120))) (let ((.cse15 (= |c_#memory_$Pointer$.offset| .cse303)) (.cse16 (<= (+ .cse52 1) |c_#StackHeapBarrier|)) (.cse19 (select |c_#memory_$Pointer$.base| .cse52)) (.cse17 (= .cse103 .cse112)) (.cse18 (= .cse103 .cse302)) (.cse14 (= |c_#memory_$Pointer$.offset| .cse301)) (.cse1 (select |c_#memory_$Pointer$.base| .cse46)) (.cse5 (<= (+ .cse46 1) |c_#StackHeapBarrier|)) (.cse4 (= .cse128 .cse132)) (.cse3 (= .cse128 .cse300)) (.cse85 (select .cse153 .cse299)) (.cse54 (<= (+ .cse79 1) |c_#StackHeapBarrier|)) (.cse82 (= .cse157 .cse156)) (.cse88 (not (= (select .cse154 .cse299) 0))) (.cse87 (= .cse156 .cse161)) (.cse83 (select .cse161 .cse299)) (.cse84 (select |c_#memory_$Pointer$.base| .cse298)) (.cse86 (not (= (select |c_old(#valid)| .cse298) 1))) (.cse77 (not (= (select .cse174 .cse297) 0))) (.cse75 (select .cse175 .cse297)) (.cse71 (= .cse183 .cse184)) (.cse45 (<= (+ .cse61 1) |c_#StackHeapBarrier|)) (.cse76 (= .cse183 .cse181)) (.cse73 (select .cse181 .cse297)) (.cse74 (select |c_#memory_$Pointer$.base| .cse296)) (.cse72 (not (= (select |c_old(#valid)| .cse296) 1))) (.cse31 (select |c_#memory_$Pointer$.base| .cse51)) (.cse28 (<= (+ .cse51 1) |c_#StackHeapBarrier|)) (.cse33 (= |c_#memory_$Pointer$.offset| .cse292)) (.cse29 (= .cse194 .cse203)) (.cse30 (= .cse194 .cse295)) (.cse39 (select .cse222 .cse294)) (.cse35 (not (= (select .cse221 .cse294) 0))) (.cse41 (= .cse216 .cse217)) (.cse42 (<= (+ .cse67 1) |c_#StackHeapBarrier|)) (.cse36 (= .cse216 .cse220)) (.cse38 (select |c_#memory_$Pointer$.base| .cse293)) (.cse37 (select .cse220 .cse294)) (.cse40 (not (= (select |c_old(#valid)| .cse293) 1))) (.cse27 (= |c_#memory_$Pointer$.offset| (store .cse292 .cse51 .cse194))) (.cse65 (<= (+ .cse47 1) |c_#StackHeapBarrier|)) (.cse91 (select .cse240 .cse290)) (.cse94 (not (= (select .cse248 .cse290) 0))) (.cse95 (= .cse247 .cse246)) (.cse89 (= .cse244 .cse246)) (.cse93 (not (= (select |c_old(#valid)| .cse291) 1))) (.cse90 (select |c_#memory_$Pointer$.base| .cse291)) (.cse92 (select .cse244 .cse290)) (.cse21 (= |c_#memory_$Pointer$.offset| |c_old(#memory_$Pointer$.offset)|)) (.cse22 (<= (+ .cse57 1) |c_#StackHeapBarrier|)) (.cse24 (select |c_#memory_$Pointer$.base| .cse57)) (.cse26 (= .cse269 .cse259)) (.cse23 (= .cse289 .cse259)) (.cse0 (= (store .cse287 .cse61 .cse183) |c_#memory_$Pointer$.base|)) (.cse69 (= .cse279 .cse274)) (.cse34 (= |c_#memory_$Pointer$.base| .cse288)) (.cse66 (not (= (select |c_old(#valid)| .cse67) 1))) (.cse70 (not (= (select |c_old(#valid)| .cse274) 1))) (.cse78 (not (= (select |c_old(#valid)| .cse79) 1))) (.cse81 (= .cse278 .cse285)) (.cse43 (= |c_#memory_$Pointer$.base| .cse287)) (.cse59 (not (= (select |c_old(#valid)| .cse61) 1))) (.cse63 (= .cse283 .cse276)) (.cse64 (not (= (select |c_old(#valid)| .cse283) 1))) (.cse80 (not (= (select |c_old(#valid)| .cse285) 1))) (.cse48 (= .cse273 .cse280)) (.cse58 (= |c_#memory_$Pointer$.base| |c_old(#memory_$Pointer$.base)|)) (.cse49 (not (= (select |c_old(#valid)| .cse47) 1))) (.cse50 (not (= (select |c_old(#valid)| .cse280) 1))) (.cse55 (= .cse286 |c_#memory_$Pointer$.base|)) (.cse53 (= .cse47 .cse79)) (.cse60 (= .cse61 .cse79)) (.cse68 (= .cse67 .cse79)) (.cse44 (= .cse61 .cse47)) (.cse62 (= .cse67 .cse61)) (.cse56 (= .cse67 .cse47))) (or (let ((.cse6 (or .cse65 .cse58 (and (or .cse89 (and (= (select .cse90 .cse91) .cse92) .cse93) .cse94) .cse95))) (.cse7 (or (and .cse82 (or (and (= .cse83 (select .cse84 .cse85)) .cse86) .cse87 .cse88)) .cse54 .cse55)) (.cse8 (or .cse78 .cse55 (and (or .cse43 .cse60 .cse45) .cse0 (or (= .cse51 .cse79) .cse28 .cse33) (or .cse53 .cse65 .cse58) (or .cse15 .cse16 (= .cse52 .cse79)) .cse27 (or .cse80 .cse78 .cse81) (or .cse14 (= .cse46 .cse79) .cse5) (or .cse34 .cse42 .cse68) (or .cse21 .cse22 (= .cse57 .cse79))))) (.cse9 (or (and .cse71 (or (and .cse72 (= .cse73 (select .cse74 .cse75))) .cse76 .cse77)) .cse43 .cse45)) (.cse10 (or .cse34 .cse66 (and (or .cse14 .cse5 (= .cse46 .cse67)) .cse0 (or .cse15 .cse16 (= .cse52 .cse67)) .cse27 (or (= .cse51 .cse67) .cse28 .cse33) (or .cse65 .cse56 .cse58) (or .cse21 .cse22 (= .cse67 .cse57)) (or .cse54 .cse68 .cse55) (or .cse43 .cse62 .cse45) (or .cse69 .cse66 .cse70)))) (.cse11 (or .cse43 .cse59 (and .cse0 (or .cse60 .cse54 .cse55) (or .cse15 .cse16 (= .cse52 .cse61)) .cse27 (or .cse34 .cse62 .cse42) (or .cse28 .cse33 (= .cse51 .cse61)) (or .cse21 .cse22 (= .cse57 .cse61)) (or .cse59 .cse63 .cse64) (or (= .cse46 .cse61) .cse14 .cse5) (or .cse65 .cse44 .cse58)))) (.cse12 (or (and .cse0 (or .cse43 .cse44 .cse45) (or (= .cse46 .cse47) .cse14 .cse5) .cse27 (or .cse48 .cse49 .cse50) (or (= .cse51 .cse47) .cse28 .cse33) (or (= .cse52 .cse47) .cse15 .cse16) (or .cse53 .cse54 .cse55) (or .cse34 .cse42 .cse56) (or .cse21 (= .cse57 .cse47) .cse22)) .cse58 .cse49)) (.cse13 (or .cse34 (and (or .cse35 .cse36 (and (= .cse37 (select .cse38 .cse39)) .cse40)) .cse41) .cse42))) (and (or (and .cse0 (or (and (or (not (= (select |c_old(#valid)| (select .cse1 .cse2)) 1)) .cse3) .cse4) .cse5) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13) .cse14 .cse5) .cse6 .cse7 (or .cse15 .cse16 (and .cse0 .cse6 .cse7 .cse8 .cse9 .cse10 (or .cse16 (and .cse17 (or .cse18 (not (= (select |c_old(#valid)| (select .cse19 .cse20)) 1))))) .cse11 .cse12 .cse13)) .cse9 (or .cse21 .cse22 (and .cse0 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 (or .cse22 (and (or .cse23 (not (= (select |c_old(#valid)| (select .cse24 .cse25)) 1))) .cse26)))) .cse11 .cse12 .cse13 .cse0 .cse27 .cse8 .cse10 (or (and .cse0 (or .cse28 (and .cse29 (or .cse30 (not (= (select |c_old(#valid)| (select .cse31 .cse32)) 1))))) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13) .cse28 .cse33))) (let ((.cse272 (not .cse56)) (.cse275 (not .cse62)) (.cse281 (not .cse44)) (.cse277 (not .cse68)) (.cse284 (not .cse60)) (.cse282 (not .cse53))) (let ((.cse97 (or .cse80 .cse78 .cse81 (and .cse0 (or .cse69 .cse80 .cse34 .cse66 .cse277 (= .cse279 .cse285) .cse70) (or .cse80 .cse78 .cse81 .cse55) (or .cse80 .cse43 .cse59 .cse63 (= .cse276 .cse285) .cse64 .cse284) (or .cse80 (= .cse273 .cse285) .cse282 .cse48 .cse58 .cse49 .cse50)) .cse55)) (.cse107 (or .cse43 .cse59 .cse63 .cse64 (and .cse0 (or .cse69 .cse34 .cse66 (= .cse283 .cse279) .cse275 .cse70 .cse64) (or (= .cse283 .cse273) .cse48 .cse281 .cse58 .cse64 .cse49 .cse50) (or .cse43 .cse59 .cse63 .cse64) (or .cse80 (= .cse283 .cse278) .cse78 .cse81 .cse64 .cse284 .cse55)))) (.cse109 (or .cse48 .cse58 .cse49 (and (or .cse69 .cse34 .cse66 (= .cse279 .cse280) .cse272 .cse70 .cse50) .cse0 (or .cse48 .cse58 .cse49 .cse50) (or .cse43 .cse59 .cse63 (= .cse276 .cse280) .cse281 .cse64 .cse50) (or .cse80 .cse78 .cse81 (= .cse278 .cse280) .cse282 .cse55 .cse50)) .cse50)) (.cse110 (or .cse69 .cse34 .cse66 .cse70 (and (or .cse272 .cse48 .cse70 .cse58 .cse49 .cse50 (= .cse273 .cse274)) .cse0 (or .cse69 .cse34 .cse66 .cse70) (or .cse43 .cse275 (= .cse276 .cse274) .cse59 .cse63 .cse70 .cse64) (or .cse80 .cse78 .cse277 .cse81 .cse70 (= .cse278 .cse274) .cse55))))) (and (let ((.cse102 (= .cse120 0))) (let ((.cse108 (or .cse102 .cse18))) (let ((.cse96 (and .cse17 .cse108))) (or .cse96 .cse15 .cse16 (let ((.cse117 (select |c_old(#memory_$Pointer$.base)| .cse52))) (let ((.cse104 (@diff .cse117 .cse19))) (let ((.cse119 (select .cse19 .cse104))) (let ((.cse114 (store .cse117 .cse104 .cse119)) (.cse113 (@diff .cse112 .cse103))) (let ((.cse111 (select .cse103 .cse113)) (.cse106 (= .cse114 .cse19)) (.cse105 (= .cse117 .cse19))) (let ((.cse99 (let ((.cse118 (or (and (not (= (select |c_old(#valid)| .cse119) 1)) (= (select .cse117 .cse104) (select (select |c_#memory_$Pointer$.base| .cse119) 0))) .cse105))) (or (let ((.cse115 (@diff .cse114 .cse19))) (let ((.cse116 (select .cse19 .cse115))) (and (= (store .cse114 .cse115 .cse116) .cse19) (or (and (not (= (select |c_old(#valid)| .cse116) 1)) (= (select (select |c_#memory_$Pointer$.base| .cse116) 0) (select .cse117 .cse115))) .cse106) .cse118))) (and .cse118 .cse106)))) (.cse101 (= .cse103 (store .cse112 .cse113 .cse111))) (.cse100 (= .cse111 0))) (and .cse0 .cse97 (let ((.cse98 (and (or (= (select .cse103 .cse104) 0) .cse105) .cse106))) (or .cse98 (and (or .cse17 (and .cse99 (or .cse98 .cse100)) .cse100) .cse101 (or .cse102 .cse18 (and (or .cse98 .cse102) .cse99))))) .cse107 .cse99 (or .cse96 (and .cse101 (or .cse17 .cse100) .cse108)) .cse109 .cse110))))))))))) .cse97 (let ((.cse125 (= .cse141 0))) (let ((.cse131 (or .cse125 .cse3))) (let ((.cse121 (and .cse131 .cse4))) (or .cse121 .cse14 (let ((.cse139 (select |c_old(#memory_$Pointer$.base)| .cse46))) (let ((.cse129 (@diff .cse139 .cse1))) (let ((.cse140 (select .cse1 .cse129))) (let ((.cse136 (store .cse139 .cse129 .cse140)) (.cse133 (@diff .cse132 .cse128))) (let ((.cse134 (select .cse128 .cse133)) (.cse127 (= .cse1 .cse136)) (.cse130 (= .cse139 .cse1))) (let ((.cse124 (let ((.cse135 (or .cse130 (and (not (= (select |c_old(#valid)| .cse140) 1)) (= (select .cse139 .cse129) (select (select |c_#memory_$Pointer$.base| .cse140) 0)))))) (or (let ((.cse137 (@diff .cse136 .cse1))) (let ((.cse138 (select .cse1 .cse137))) (and .cse135 (= (store .cse136 .cse137 .cse138) .cse1) (or .cse127 (and (= (select .cse139 .cse137) (select (select |c_#memory_$Pointer$.base| .cse138) 0)) (not (= (select |c_old(#valid)| .cse138) 1))))))) (and .cse127 .cse135)))) (.cse123 (= .cse134 0)) (.cse126 (= (store .cse132 .cse133 .cse134) .cse128))) (and .cse0 .cse97 (let ((.cse122 (and .cse127 (or (= (select .cse128 .cse129) 0) .cse130)))) (or .cse122 (and (or .cse4 (and (or .cse122 .cse123) .cse124) .cse123) (or .cse125 (and .cse124 (or .cse125 .cse122)) .cse3) .cse126))) .cse107 .cse124 (or (and .cse131 (or .cse4 .cse123) .cse126) .cse121) .cse109 .cse110))))))) .cse5)))) (let ((.cse163 (and (= .cse83 (select .cse84 0)) .cse86))) (let ((.cse160 (or .cse163 .cse87))) (or (let ((.cse162 (@diff .cse154 .cse153))) (let ((.cse155 (select .cse153 .cse162))) (let ((.cse150 (store .cse154 .cse162 .cse155))) (let ((.cse151 (@diff .cse150 .cse153))) (let ((.cse152 (select .cse153 .cse151))) (let ((.cse144 (= .cse150 .cse153)) (.cse145 (= .cse152 0)) (.cse142 (or (let ((.cse158 (@diff .cse157 .cse156))) (let ((.cse159 (select .cse156 .cse158))) (and (= .cse156 (store .cse157 .cse158 .cse159)) .cse160 (or .cse82 (and (not (= (select |c_old(#valid)| .cse159) 1)) (= (select (select |c_#memory_$Pointer$.base| .cse159) 0) (select .cse161 .cse158))))))) (and .cse82 .cse160))) (.cse147 (= .cse155 0)) (.cse148 (= .cse154 .cse153)) (.cse146 (= (store .cse150 .cse151 .cse152) .cse153))) (and .cse0 .cse97 .cse107 .cse142 (let ((.cse143 (or .cse147 .cse148))) (or (and .cse143 (or .cse144 .cse145) .cse146) (and .cse143 .cse144))) (let ((.cse149 (and .cse82 (or .cse87 (= .cse85 0))))) (or .cse149 (and (or .cse144 (and (or .cse149 .cse145) .cse142) .cse145) (or .cse147 (and .cse142 (or .cse147 .cse149)) .cse148) .cse146))) .cse109 .cse110))))))) .cse54 (and .cse82 (or .cse163 (and .cse82 .cse0 .cse97 .cse107 .cse160 .cse109 .cse110) .cse87 .cse88)) .cse55))) (let ((.cse165 (and (= .cse73 (select .cse74 0)) .cse72))) (let ((.cse164 (or .cse76 .cse165))) (or (and .cse71 (or .cse76 (and .cse164 .cse0 .cse97 .cse71 .cse107 .cse109 .cse110) .cse77 .cse165)) (let ((.cse185 (@diff .cse174 .cse175))) (let ((.cse176 (select .cse175 .cse185))) (let ((.cse177 (store .cse174 .cse185 .cse176))) (let ((.cse178 (@diff .cse177 .cse175))) (let ((.cse179 (select .cse175 .cse178))) (let ((.cse166 (or (let ((.cse182 (@diff .cse184 .cse183))) (let ((.cse180 (select .cse183 .cse182))) (and .cse164 (or .cse71 (and (not (= (select |c_old(#valid)| .cse180) 1)) (= (select (select |c_#memory_$Pointer$.base| .cse180) 0) (select .cse181 .cse182)))) (= .cse183 (store .cse184 .cse182 .cse180))))) (and .cse164 .cse71))) (.cse168 (= .cse179 0)) (.cse172 (= .cse175 (store .cse177 .cse178 .cse179))) (.cse169 (= .cse175 .cse177)) (.cse170 (= .cse176 0)) (.cse171 (= .cse174 .cse175))) (and .cse0 .cse97 .cse166 .cse107 (let ((.cse167 (and .cse71 (or (= .cse75 0) .cse76)))) (or (and (or (and .cse166 (or .cse167 .cse168)) .cse169 .cse168) (or .cse170 (and .cse166 (or .cse170 .cse167)) .cse171) .cse172) .cse167)) (let ((.cse173 (or .cse170 .cse171))) (or (and (or .cse169 .cse168) .cse173 .cse172) (and .cse169 .cse173))) .cse109 .cse110))))))) .cse43 .cse45))) .cse0 (let ((.cse192 (= .cse206 0))) (let ((.cse189 (or .cse192 .cse30))) (let ((.cse187 (and .cse29 .cse189))) (or (let ((.cse201 (select |c_old(#memory_$Pointer$.base)| .cse51))) (let ((.cse195 (@diff .cse201 .cse31))) (let ((.cse202 (select .cse31 .cse195))) (let ((.cse204 (@diff .cse203 .cse194)) (.cse198 (store .cse201 .cse195 .cse202))) (let ((.cse193 (= .cse31 .cse198)) (.cse196 (= .cse201 .cse31)) (.cse205 (select .cse194 .cse204))) (let ((.cse190 (= .cse205 0)) (.cse188 (= .cse194 (store .cse203 .cse204 .cse205))) (.cse186 (let ((.cse197 (or (and (= (select .cse201 .cse195) (select (select |c_#memory_$Pointer$.base| .cse202) 0)) (not (= 1 (select |c_old(#valid)| .cse202)))) .cse196))) (or (and .cse193 .cse197) (let ((.cse199 (@diff .cse198 .cse31))) (let ((.cse200 (select .cse31 .cse199))) (and (= (store .cse198 .cse199 .cse200) .cse31) .cse197 (or .cse193 (and (not (= (select |c_old(#valid)| .cse200) 1)) (= (select (select |c_#memory_$Pointer$.base| .cse200) 0) (select .cse201 .cse199))))))))))) (and .cse186 .cse0 .cse97 (or .cse187 (and .cse188 .cse189 (or .cse29 .cse190))) .cse107 (let ((.cse191 (and .cse193 (or (= (select .cse194 .cse195) 0) .cse196)))) (or (and (or .cse29 .cse190 (and .cse186 (or .cse190 .cse191))) .cse188 (or .cse192 .cse30 (and .cse186 (or .cse192 .cse191)))) .cse191)) .cse109 .cse110))))))) .cse187 .cse28 .cse33)))) (let ((.cse228 (and (= (select .cse38 0) .cse37) .cse40))) (let ((.cse215 (or .cse36 .cse228))) (or (let ((.cse227 (@diff .cse221 .cse222))) (let ((.cse223 (select .cse222 .cse227))) (let ((.cse224 (store .cse221 .cse227 .cse223))) (let ((.cse226 (@diff .cse224 .cse222))) (let ((.cse225 (select .cse222 .cse226))) (let ((.cse207 (= (store .cse224 .cse226 .cse225) .cse222)) (.cse213 (= .cse225 0)) (.cse212 (= .cse224 .cse222)) (.cse208 (= .cse223 0)) (.cse211 (= .cse221 .cse222)) (.cse210 (or (and .cse215 .cse41) (let ((.cse218 (@diff .cse217 .cse216))) (let ((.cse219 (select .cse216 .cse218))) (and .cse215 (= .cse216 (store .cse217 .cse218 .cse219)) (or (and (= (select .cse220 .cse218) (select (select |c_#memory_$Pointer$.base| .cse219) 0)) (not (= (select |c_old(#valid)| .cse219) 1))) .cse41))))))) (and .cse0 .cse97 .cse107 (let ((.cse209 (and (or (= .cse39 0) .cse36) .cse41))) (or (and .cse207 (or .cse208 (and (or .cse209 .cse208) .cse210) .cse211) (or .cse212 .cse213 (and (or .cse209 .cse213) .cse210))) .cse209)) (let ((.cse214 (or .cse208 .cse211))) (or (and .cse207 .cse214 (or .cse212 .cse213)) (and .cse214 .cse212))) .cse210 .cse109 .cse110))))))) .cse34 (and (or .cse35 .cse36 .cse228 (and .cse0 .cse97 .cse215 .cse107 .cse41 .cse109 .cse110)) .cse41) .cse42))) .cse107 .cse27 (let ((.cse250 (and .cse93 (= (select .cse90 0) .cse92)))) (let ((.cse242 (or .cse89 .cse250))) (or .cse65 (let ((.cse249 (@diff .cse248 .cse240))) (let ((.cse241 (select .cse240 .cse249))) (let ((.cse237 (store .cse248 .cse249 .cse241))) (let ((.cse238 (@diff .cse237 .cse240))) (let ((.cse239 (select .cse240 .cse238))) (let ((.cse230 (= .cse240 .cse237)) (.cse231 (= .cse239 0)) (.cse233 (= .cse248 .cse240)) (.cse235 (or (and .cse242 .cse95) (let ((.cse245 (@diff .cse247 .cse246))) (let ((.cse243 (select .cse246 .cse245))) (and .cse242 (or (and (= (select (select |c_#memory_$Pointer$.base| .cse243) 0) (select .cse244 .cse245)) (not (= (select |c_old(#valid)| .cse243) 1))) .cse95) (= .cse246 (store .cse247 .cse245 .cse243))))))) (.cse234 (= .cse241 0)) (.cse232 (= (store .cse237 .cse238 .cse239) .cse240))) (and .cse0 .cse97 .cse107 (let ((.cse229 (or .cse233 .cse234))) (or (and .cse229 .cse230) (and .cse229 (or .cse230 .cse231) .cse232))) .cse235 (let ((.cse236 (and .cse95 (or .cse89 (= .cse91 0))))) (or .cse236 (and (or (and .cse235 (or .cse236 .cse231)) .cse230 .cse231) (or .cse233 (and (or .cse236 .cse234) .cse235) .cse234) .cse232))) .cse109 .cse110))))))) .cse58 (and (or .cse89 .cse250 (and .cse0 .cse97 .cse242 .cse107 .cse95 .cse109 .cse110) .cse94) .cse95)))) (let ((.cse257 (= .cse271 0))) (let ((.cse252 (or .cse257 .cse23))) (let ((.cse251 (and .cse26 .cse252))) (or .cse21 .cse251 .cse22 (let ((.cse263 (select |c_old(#memory_$Pointer$.base)| .cse57))) (let ((.cse260 (@diff .cse263 .cse24))) (let ((.cse267 (select .cse24 .cse260))) (let ((.cse270 (@diff .cse269 .cse259)) (.cse266 (store .cse263 .cse260 .cse267))) (let ((.cse261 (= .cse24 .cse266)) (.cse258 (= .cse263 .cse24)) (.cse268 (select .cse259 .cse270))) (let ((.cse253 (= (store .cse269 .cse270 .cse268) .cse259)) (.cse254 (= .cse268 0)) (.cse255 (let ((.cse262 (or .cse258 (and (= (select (select |c_#memory_$Pointer$.base| .cse267) 0) (select .cse263 .cse260)) (not (= (select |c_old(#valid)| .cse267) 1)))))) (or (and .cse262 .cse261) (let ((.cse264 (@diff .cse266 .cse24))) (let ((.cse265 (select .cse24 .cse264))) (and .cse262 (or (and (= (select .cse263 .cse264) (select (select |c_#memory_$Pointer$.base| .cse265) 0)) (not (= (select |c_old(#valid)| .cse265) 1))) .cse261) (= .cse24 (store .cse266 .cse264 .cse265))))))))) (and .cse0 .cse97 (or (and .cse252 .cse253 (or .cse26 .cse254)) .cse251) (let ((.cse256 (and (or .cse258 (= (select .cse259 .cse260) 0)) .cse261))) (or (and .cse253 (or (and .cse255 (or .cse256 .cse254)) .cse26 .cse254) (or (and .cse255 (or .cse256 .cse257)) .cse257 .cse23)) .cse256)) .cse255 .cse107 .cse109 .cse110))))))))))) .cse109 .cse110))))))))))))))))))) is different from false [2020-10-27 01:25:47,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:25:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:47,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:47,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:47,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:25:47,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:47,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 01:25:47,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:47,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:25:47,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:25:47,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:25:47,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:47,771 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36 [2020-10-27 01:25:47,898 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 01:25:47,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782911277] [2020-10-27 01:25:47,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:25:47,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-27 01:25:47,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801989984] [2020-10-27 01:25:47,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-27 01:25:47,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:25:47,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-27 01:25:47,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=697, Unknown=1, NotChecked=52, Total=812 [2020-10-27 01:25:47,901 INFO L87 Difference]: Start difference. First operand 74 states and 85 transitions. Second operand 29 states. [2020-10-27 01:25:48,596 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-10-27 01:25:49,925 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 92 [2020-10-27 01:25:50,426 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 82 [2020-10-27 01:25:51,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:25:51,315 INFO L93 Difference]: Finished difference Result 96 states and 112 transitions. [2020-10-27 01:25:51,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 01:25:51,316 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 54 [2020-10-27 01:25:51,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:25:51,318 INFO L225 Difference]: With dead ends: 96 [2020-10-27 01:25:51,318 INFO L226 Difference]: Without dead ends: 91 [2020-10-27 01:25:51,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=105, Invalid=1230, Unknown=1, NotChecked=70, Total=1406 [2020-10-27 01:25:51,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-27 01:25:51,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 74. [2020-10-27 01:25:51,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-27 01:25:51,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2020-10-27 01:25:51,332 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 86 transitions. Word has length 54 [2020-10-27 01:25:51,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:25:51,332 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 86 transitions. [2020-10-27 01:25:51,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-27 01:25:51,332 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 86 transitions. [2020-10-27 01:25:51,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-27 01:25:51,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:25:51,334 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:25:51,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 01:25:51,334 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:25:51,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:25:51,335 INFO L82 PathProgramCache]: Analyzing trace with hash 400220915, now seen corresponding path program 1 times [2020-10-27 01:25:51,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:25:51,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835323508] [2020-10-27 01:25:51,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:25:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:51,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:51,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:52,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:53,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:56,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:56,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 01:25:56,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:25:56,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-27 01:25:56,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:56,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 01:25:56,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:25:56,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-27 01:25:56,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:56,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:25:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:56,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:56,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:56,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:25:56,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:56,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:25:56,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:56,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:25:56,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:25:56,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:25:56,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:56,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:25:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:56,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:56,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:56,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:25:56,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:56,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-27 01:25:56,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:56,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 01:25:56,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:25:56,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 01:25:56,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:57,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:25:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:57,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:57,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:57,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:25:57,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:57,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 01:25:57,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:57,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:25:57,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:25:57,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:25:57,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:57,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:25:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:57,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:57,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:57,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:25:57,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:57,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 01:25:57,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:57,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 01:25:57,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:25:57,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:25:57,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:57,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:25:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:57,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:57,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:57,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 01:25:57,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:57,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-27 01:25:57,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 01:25:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:25:57,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 01:25:57,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:25:58,473 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2020-10-27 01:25:58,896 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2020-10-27 01:25:59,436 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 82 [2020-10-27 01:25:59,780 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-27 01:25:59,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:25:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:25:59,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:25:59,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:25:59,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:25:59,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:25:59,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 01:25:59,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:25:59,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:25:59,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:25:59,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:25:59,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:00,325 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 41 [2020-10-27 01:26:00,358 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 01:26:00,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835323508] [2020-10-27 01:26:00,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:26:00,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-27 01:26:00,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908559643] [2020-10-27 01:26:00,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-27 01:26:00,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:26:00,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-27 01:26:00,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=751, Unknown=0, NotChecked=0, Total=812 [2020-10-27 01:26:00,361 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. Second operand 29 states. [2020-10-27 01:26:01,174 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-10-27 01:26:02,923 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2020-10-27 01:26:03,532 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-27 01:26:05,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:26:05,057 INFO L93 Difference]: Finished difference Result 91 states and 105 transitions. [2020-10-27 01:26:05,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-27 01:26:05,057 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 55 [2020-10-27 01:26:05,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:26:05,058 INFO L225 Difference]: With dead ends: 91 [2020-10-27 01:26:05,058 INFO L226 Difference]: Without dead ends: 87 [2020-10-27 01:26:05,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=146, Invalid=1746, Unknown=0, NotChecked=0, Total=1892 [2020-10-27 01:26:05,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-27 01:26:05,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 81. [2020-10-27 01:26:05,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-27 01:26:05,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 93 transitions. [2020-10-27 01:26:05,076 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 93 transitions. Word has length 55 [2020-10-27 01:26:05,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:26:05,077 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 93 transitions. [2020-10-27 01:26:05,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-27 01:26:05,077 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 93 transitions. [2020-10-27 01:26:05,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-27 01:26:05,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:26:05,078 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:26:05,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 01:26:05,078 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:26:05,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:26:05,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1001290963, now seen corresponding path program 4 times [2020-10-27 01:26:05,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:26:05,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036898024] [2020-10-27 01:26:05,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:26:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:05,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:05,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:06,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:06,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 01:26:06,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:26:06,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1254 [2020-10-27 01:26:06,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:06,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 01:26:06,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:26:06,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 01:26:06,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:06,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:26:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:06,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:06,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:06,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:26:06,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:06,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:26:06,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:06,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:26:06,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:06,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:26:06,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:06,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:26:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:06,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:06,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:06,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:26:06,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:06,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-27 01:26:06,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:06,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 01:26:06,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:06,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 01:26:06,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:06,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:26:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:06,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:06,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:06,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:26:06,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:06,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 01:26:06,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:06,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:26:06,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:06,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:26:06,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:06,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:26:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:06,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:06,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:06,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:26:06,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:06,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 01:26:06,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:26:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:26:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:26:06,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:07,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:26:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:07,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:07,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:07,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 01:26:07,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:07,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-27 01:26:07,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:07,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 01:26:07,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:26:07,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 01:26:07,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:07,529 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-27 01:26:07,691 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-10-27 01:26:07,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:26:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:07,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:07,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:07,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:26:07,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:07,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 01:26:07,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:07,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:26:07,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:26:07,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:26:07,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:08,150 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-10-27 01:26:08,174 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 01:26:08,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036898024] [2020-10-27 01:26:08,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:26:08,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-27 01:26:08,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687982267] [2020-10-27 01:26:08,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-27 01:26:08,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:26:08,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-27 01:26:08,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2020-10-27 01:26:08,176 INFO L87 Difference]: Start difference. First operand 81 states and 93 transitions. Second operand 24 states. [2020-10-27 01:26:09,782 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2020-10-27 01:26:10,075 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-10-27 01:26:10,346 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2020-10-27 01:26:10,789 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2020-10-27 01:26:11,097 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2020-10-27 01:26:11,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:26:11,632 INFO L93 Difference]: Finished difference Result 94 states and 108 transitions. [2020-10-27 01:26:11,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 01:26:11,633 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 55 [2020-10-27 01:26:11,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:26:11,634 INFO L225 Difference]: With dead ends: 94 [2020-10-27 01:26:11,635 INFO L226 Difference]: Without dead ends: 80 [2020-10-27 01:26:11,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=136, Invalid=1270, Unknown=0, NotChecked=0, Total=1406 [2020-10-27 01:26:11,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-27 01:26:11,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 73. [2020-10-27 01:26:11,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-27 01:26:11,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 82 transitions. [2020-10-27 01:26:11,647 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 82 transitions. Word has length 55 [2020-10-27 01:26:11,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:26:11,648 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 82 transitions. [2020-10-27 01:26:11,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-27 01:26:11,648 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 82 transitions. [2020-10-27 01:26:11,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-27 01:26:11,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:26:11,649 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:26:11,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 01:26:11,649 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:26:11,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:26:11,649 INFO L82 PathProgramCache]: Analyzing trace with hash -290866400, now seen corresponding path program 2 times [2020-10-27 01:26:11,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:26:11,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791924306] [2020-10-27 01:26:11,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:26:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:11,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:11,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:13,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:15,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:16,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:16,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 01:26:16,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:26:16,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 01:26:16,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:16,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:26:16,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:26:16,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 01:26:16,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:16,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:26:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:16,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:16,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:16,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:26:16,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:16,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:26:16,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:16,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:26:16,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:16,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:26:16,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:16,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:26:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:16,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:16,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:16,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-27 01:26:16,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:16,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 01:26:16,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:26:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 01:26:16,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 01:26:16,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:16,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:26:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:16,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:16,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:16,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:26:16,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:16,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 01:26:16,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:26:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:26:16,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:16,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:26:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:16,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:16,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:16,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:26:16,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:16,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 01:26:16,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:16,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:26:16,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:16,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:26:16,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:16,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 01:26:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:16,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:16,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:16,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:26:16,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:16,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 01:26:16,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:26:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:26:16,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:16,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 01:26:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:16,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:16,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:16,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 01:26:16,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:16,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 01:26:16,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:16,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:26:16,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 01:26:16,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:26:16,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:16,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:26:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:16,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:16,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:16,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:26:16,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:16,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:26:16,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:16,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:26:16,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:16,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:26:16,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:16,948 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-27 01:26:16,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [791924306] [2020-10-27 01:26:16,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:26:16,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 01:26:16,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426598199] [2020-10-27 01:26:16,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 01:26:16,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:26:16,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 01:26:16,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:26:16,950 INFO L87 Difference]: Start difference. First operand 73 states and 82 transitions. Second operand 8 states. [2020-10-27 01:26:17,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:26:17,388 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2020-10-27 01:26:17,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 01:26:17,390 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-10-27 01:26:17,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:26:17,391 INFO L225 Difference]: With dead ends: 108 [2020-10-27 01:26:17,391 INFO L226 Difference]: Without dead ends: 51 [2020-10-27 01:26:17,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-27 01:26:17,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-27 01:26:17,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-27 01:26:17,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-27 01:26:17,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2020-10-27 01:26:17,401 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 54 transitions. Word has length 61 [2020-10-27 01:26:17,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:26:17,401 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 54 transitions. [2020-10-27 01:26:17,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 01:26:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 54 transitions. [2020-10-27 01:26:17,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-27 01:26:17,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:26:17,402 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:26:17,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 01:26:17,403 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:26:17,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:26:17,403 INFO L82 PathProgramCache]: Analyzing trace with hash -780944716, now seen corresponding path program 1 times [2020-10-27 01:26:17,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:26:17,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646064984] [2020-10-27 01:26:17,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:26:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:17,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:17,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:18,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:19,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:20,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:21,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:22,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:22,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 01:26:22,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 01:26:22,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 01:26:22,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:22,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-27 01:26:22,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:26:22,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 01:26:22,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:22,724 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 36 [2020-10-27 01:26:23,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:26:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:23,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:23,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:23,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:26:23,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:23,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:26:23,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:23,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:26:23,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:23,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:26:23,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:23,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:26:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:23,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:23,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:23,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:26:23,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:23,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-27 01:26:23,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 01:26:23,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:23,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 01:26:23,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:23,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:26:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:23,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:23,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:23,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:26:23,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:23,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 01:26:23,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:23,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:26:23,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:23,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:26:23,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:23,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:26:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:23,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:23,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:23,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:26:23,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:23,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 01:26:23,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:23,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:26:23,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:26:23,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:26:23,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:23,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:26:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:23,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:24,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:24,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 01:26:24,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:24,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-10-27 01:26:24,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:24,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 01:26:24,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:26:24,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 01:26:24,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:24,573 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2020-10-27 01:26:25,097 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 55 [2020-10-27 01:26:26,225 WARN L193 SmtUtils]: Spent 929.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 91 [2020-10-27 01:26:26,632 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2020-10-27 01:26:26,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:26:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:26,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:26,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:26,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:26:26,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:26,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 01:26:26,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:26,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:26:26,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:26:26,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:26:26,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:27,051 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 01:26:27,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [646064984] [2020-10-27 01:26:27,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:26:27,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-27 01:26:27,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304087750] [2020-10-27 01:26:27,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-27 01:26:27,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:26:27,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-27 01:26:27,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2020-10-27 01:26:27,054 INFO L87 Difference]: Start difference. First operand 51 states and 54 transitions. Second operand 30 states. [2020-10-27 01:26:29,225 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2020-10-27 01:26:29,847 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2020-10-27 01:26:31,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:26:31,222 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2020-10-27 01:26:31,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-27 01:26:31,223 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 58 [2020-10-27 01:26:31,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:26:31,224 INFO L225 Difference]: With dead ends: 61 [2020-10-27 01:26:31,224 INFO L226 Difference]: Without dead ends: 56 [2020-10-27 01:26:31,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=176, Invalid=2176, Unknown=0, NotChecked=0, Total=2352 [2020-10-27 01:26:31,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-27 01:26:31,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 53. [2020-10-27 01:26:31,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-27 01:26:31,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2020-10-27 01:26:31,234 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 58 [2020-10-27 01:26:31,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:26:31,235 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2020-10-27 01:26:31,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-27 01:26:31,235 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2020-10-27 01:26:31,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-27 01:26:31,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:26:31,236 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:26:31,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 01:26:31,236 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:26:31,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:26:31,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1598303113, now seen corresponding path program 2 times [2020-10-27 01:26:31,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:26:31,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476147235] [2020-10-27 01:26:31,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:26:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:31,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:31,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:35,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:35,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 01:26:35,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:26:35,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4328 [2020-10-27 01:26:35,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:35,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 01:26:35,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:26:35,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 01:26:35,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:35,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:26:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:35,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:35,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:35,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:26:35,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:35,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:26:35,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:35,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:26:35,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:35,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:26:35,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:35,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:26:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:35,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:36,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:36,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:26:36,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:36,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-27 01:26:36,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:36,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 01:26:36,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:36,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 01:26:36,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:36,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:26:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:36,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:36,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:36,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:26:36,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:36,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 01:26:36,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:36,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:26:36,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:36,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 01:26:36,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:36,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:26:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:36,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:36,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:36,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:26:36,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:36,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 01:26:36,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:36,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:26:36,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:26:36,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:26:36,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:36,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:26:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:36,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:37,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:37,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 01:26:37,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:37,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-27 01:26:37,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:37,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 01:26:37,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:26:37,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 01:26:37,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:37,490 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2020-10-27 01:26:37,880 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2020-10-27 01:26:38,680 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 73 [2020-10-27 01:26:39,227 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 88 [2020-10-27 01:26:39,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:26:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:39,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:39,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:39,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:26:39,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:39,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 01:26:39,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:39,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:26:39,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:26:39,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:26:39,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:39,888 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2020-10-27 01:26:39,923 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 01:26:39,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476147235] [2020-10-27 01:26:39,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:26:39,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-27 01:26:39,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904526066] [2020-10-27 01:26:39,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-27 01:26:39,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:26:39,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-27 01:26:39,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=810, Unknown=0, NotChecked=0, Total=870 [2020-10-27 01:26:39,926 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand 30 states. [2020-10-27 01:26:40,814 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-10-27 01:26:42,352 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2020-10-27 01:26:42,953 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2020-10-27 01:26:44,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:26:44,197 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2020-10-27 01:26:44,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-27 01:26:44,198 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 59 [2020-10-27 01:26:44,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:26:44,199 INFO L225 Difference]: With dead ends: 59 [2020-10-27 01:26:44,199 INFO L226 Difference]: Without dead ends: 55 [2020-10-27 01:26:44,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=149, Invalid=2013, Unknown=0, NotChecked=0, Total=2162 [2020-10-27 01:26:44,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-27 01:26:44,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-27 01:26:44,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-27 01:26:44,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2020-10-27 01:26:44,209 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 59 [2020-10-27 01:26:44,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:26:44,209 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2020-10-27 01:26:44,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-27 01:26:44,210 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2020-10-27 01:26:44,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-27 01:26:44,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:26:44,210 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:26:44,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 01:26:44,211 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:26:44,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:26:44,211 INFO L82 PathProgramCache]: Analyzing trace with hash 107586142, now seen corresponding path program 2 times [2020-10-27 01:26:44,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:26:44,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560989639] [2020-10-27 01:26:44,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:26:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:44,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:44,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:44,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:44,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 01:26:44,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:26:44,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-10-27 01:26:44,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:44,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:26:44,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:26:44,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 01:26:44,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:44,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:26:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:44,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:44,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:44,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:26:44,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:44,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:26:44,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:44,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:26:44,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:44,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:26:44,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:44,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:26:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:44,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:45,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:45,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:45,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:26:45,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:26:45,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-27 01:26:45,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:45,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:26:45,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:45,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 01:26:45,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:45,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:26:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:45,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:45,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:45,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:26:45,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:45,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:26:45,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:45,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:26:45,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:45,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:26:45,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:45,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:26:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:45,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:45,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:45,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:26:45,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:45,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:26:45,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:45,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:26:45,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:45,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:26:45,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:45,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:26:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:45,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:45,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:45,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 01:26:45,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:45,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 01:26:45,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:45,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:26:45,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:45,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 01:26:45,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:45,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:26:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:45,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:45,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:45,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:26:45,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:26:45,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:26:45,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:45,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:26:45,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:26:45,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:26:45,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:45,153 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-27 01:26:45,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [560989639] [2020-10-27 01:26:45,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:26:45,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 01:26:45,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629139376] [2020-10-27 01:26:45,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 01:26:45,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:26:45,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 01:26:45,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-27 01:26:45,160 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 9 states. [2020-10-27 01:26:45,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:26:45,519 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2020-10-27 01:26:45,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 01:26:45,520 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-10-27 01:26:45,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:26:45,521 INFO L225 Difference]: With dead ends: 65 [2020-10-27 01:26:45,521 INFO L226 Difference]: Without dead ends: 60 [2020-10-27 01:26:45,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-27 01:26:45,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-27 01:26:45,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2020-10-27 01:26:45,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-27 01:26:45,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2020-10-27 01:26:45,532 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 62 [2020-10-27 01:26:45,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:26:45,535 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2020-10-27 01:26:45,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 01:26:45,535 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2020-10-27 01:26:45,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-27 01:26:45,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:26:45,536 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:26:45,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 01:26:45,537 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:26:45,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:26:45,537 INFO L82 PathProgramCache]: Analyzing trace with hash -922011361, now seen corresponding path program 3 times [2020-10-27 01:26:45,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:26:45,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475829252] [2020-10-27 01:26:45,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:26:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:26:45,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:45,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:46,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:47,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:26:50,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:26:50,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 01:26:50,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:26:50,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 01:26:50,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:26:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 01:26:50,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:26:50,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 01:26:50,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:26:59,787 WARN L193 SmtUtils]: Spent 8.05 s on a formula simplification. DAG size of input: 973 DAG size of output: 76 [2020-10-27 01:27:08,142 WARN L193 SmtUtils]: Spent 8.22 s on a formula simplification. DAG size of input: 975 DAG size of output: 86 [2020-10-27 01:27:08,272 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 27 [2020-10-27 01:27:08,602 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 21 [2020-10-27 01:27:08,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:27:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:27:08,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:27:08,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:27:08,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:27:08,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:27:08,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:27:08,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:27:08,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:27:08,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:27:08,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:27:08,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:27:08,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:27:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:27:08,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:27:09,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:27:09,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:27:09,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:27:09,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-27 01:27:09,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:27:09,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 01:27:09,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:27:09,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 01:27:09,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:27:09,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:27:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:27:09,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:27:09,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:27:09,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:27:09,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:27:09,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 01:27:09,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:27:09,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:27:09,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:27:09,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:27:09,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:27:09,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:27:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:27:09,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:27:09,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:27:09,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:27:09,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:27:09,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 01:27:09,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:27:09,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:27:09,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:27:09,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:27:09,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:27:10,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:27:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:27:10,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:27:10,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:27:11,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:27:11,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 01:27:11,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:27:11,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 983 [2020-10-27 01:27:11,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:27:11,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 01:27:11,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:27:11,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 01:27:11,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0