/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_insert_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:28:58,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:28:58,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:28:58,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:28:58,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:28:58,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:28:58,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:28:58,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:28:58,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:28:58,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:28:58,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:28:58,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:28:58,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:28:58,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:28:58,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:28:58,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:28:58,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:28:58,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:28:58,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:28:58,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:28:58,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:28:58,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:28:58,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:28:58,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:28:58,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:28:58,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:28:58,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:28:58,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:28:58,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:28:58,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:28:58,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:28:58,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:28:58,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:28:58,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:28:58,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:28:58,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:28:58,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:28:58,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:28:58,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:28:58,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:28:58,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:28:58,830 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 [2020-10-29 09:28:58,885 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:28:58,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:28:58,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:28:58,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:28:58,889 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:28:58,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:28:58,891 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:28:58,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:28:58,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:28:58,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:28:58,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:28:58,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:28:58,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:28:58,895 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:28:58,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:28:58,896 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:28:58,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:28:58,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:28:58,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:28:58,897 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:28:58,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:28:58,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:28:58,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:28:58,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:28:58,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:28:58,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:28:58,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:28:58,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:28:58,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:28:58,901 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:28:59,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:28:59,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:28:59,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:28:59,336 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:28:59,337 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:28:59,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_insert_unequal.i [2020-10-29 09:28:59,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/12cce39c1/b0f6e98634fe4a2abf102d8e864f4bbc/FLAG20ff18d7f [2020-10-29 09:29:00,152 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:29:00,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-simple/sll2c_insert_unequal.i [2020-10-29 09:29:00,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/12cce39c1/b0f6e98634fe4a2abf102d8e864f4bbc/FLAG20ff18d7f [2020-10-29 09:29:00,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/12cce39c1/b0f6e98634fe4a2abf102d8e864f4bbc [2020-10-29 09:29:00,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:29:00,367 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:29:00,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:29:00,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:29:00,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:29:00,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:29:00" (1/1) ... [2020-10-29 09:29:00,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dce0ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:29:00, skipping insertion in model container [2020-10-29 09:29:00,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:29:00" (1/1) ... [2020-10-29 09:29:00,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:29:00,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:29:00,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:29:00,787 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:29:00,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:29:00,930 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:29:00,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:29:00 WrapperNode [2020-10-29 09:29:00,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:29:00,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:29:00,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:29:00,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:29:00,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:29:00" (1/1) ... [2020-10-29 09:29:00,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:29:00" (1/1) ... [2020-10-29 09:29:00,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:29:00" (1/1) ... [2020-10-29 09:29:00,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:29:00" (1/1) ... [2020-10-29 09:29:00,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:29:00" (1/1) ... [2020-10-29 09:29:00,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:29:00" (1/1) ... [2020-10-29 09:29:00,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:29:00" (1/1) ... [2020-10-29 09:29:01,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:29:01,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:29:01,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:29:01,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:29:01,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:29:00" (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 [2020-10-29 09:29:01,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:29:01,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:29:01,104 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:29:01,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-29 09:29:01,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-29 09:29:01,105 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-10-29 09:29:01,105 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-10-29 09:29:01,105 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2020-10-29 09:29:01,105 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2020-10-29 09:29:01,106 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_insert [2020-10-29 09:29:01,106 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:29:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:29:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:29:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 09:29:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 09:29:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:29:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:29:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-29 09:29:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-29 09:29:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-29 09:29:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-29 09:29:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-29 09:29:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-29 09:29:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-29 09:29:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-29 09:29:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-29 09:29:01,109 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-29 09:29:01,109 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-29 09:29:01,109 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-29 09:29:01,109 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-29 09:29:01,109 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-29 09:29:01,109 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-29 09:29:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-29 09:29:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-29 09:29:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-29 09:29:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-29 09:29:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-29 09:29:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-29 09:29:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-29 09:29:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-29 09:29:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-29 09:29:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-29 09:29:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-29 09:29:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-29 09:29:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-29 09:29:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-29 09:29:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-29 09:29:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-29 09:29:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-29 09:29:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-29 09:29:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-29 09:29:01,113 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-29 09:29:01,113 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-29 09:29:01,113 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-29 09:29:01,113 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-29 09:29:01,113 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-29 09:29:01,113 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-29 09:29:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-29 09:29:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-29 09:29:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-29 09:29:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-29 09:29:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-29 09:29:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-29 09:29:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-29 09:29:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-29 09:29:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-29 09:29:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-29 09:29:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-29 09:29:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-29 09:29:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 09:29:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-29 09:29:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-29 09:29:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 09:29:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-29 09:29:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-29 09:29:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-29 09:29:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-29 09:29:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-29 09:29:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-29 09:29:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-29 09:29:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-29 09:29:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 09:29:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-29 09:29:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-29 09:29:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-29 09:29:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-29 09:29:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-29 09:29:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-29 09:29:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-29 09:29:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-29 09:29:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-29 09:29:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-29 09:29:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-29 09:29:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-29 09:29:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-29 09:29:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-29 09:29:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-29 09:29:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-29 09:29:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-29 09:29:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-29 09:29:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-29 09:29:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-29 09:29:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-29 09:29:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-29 09:29:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-29 09:29:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-29 09:29:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-29 09:29:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-29 09:29:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-29 09:29:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-29 09:29:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-29 09:29:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-29 09:29:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-29 09:29:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-29 09:29:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-29 09:29:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-29 09:29:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-29 09:29:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-29 09:29:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-29 09:29:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-29 09:29:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-29 09:29:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-10-29 09:29:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-10-29 09:29:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 09:29:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 09:29:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:29:01,125 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2020-10-29 09:29:01,125 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2020-10-29 09:29:01,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 09:29:01,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:29:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_insert [2020-10-29 09:29:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:29:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-29 09:29:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:29:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:29:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:29:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:29:01,603 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-10-29 09:29:01,940 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:29:01,940 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 09:29:01,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:29:01 BoogieIcfgContainer [2020-10-29 09:29:01,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:29:01,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:29:01,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:29:01,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:29:01,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:29:00" (1/3) ... [2020-10-29 09:29:01,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4683633a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:29:01, skipping insertion in model container [2020-10-29 09:29:01,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:29:00" (2/3) ... [2020-10-29 09:29:01,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4683633a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:29:01, skipping insertion in model container [2020-10-29 09:29:01,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:29:01" (3/3) ... [2020-10-29 09:29:01,952 INFO L111 eAbstractionObserver]: Analyzing ICFG sll2c_insert_unequal.i [2020-10-29 09:29:01,965 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:29:01,971 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:29:01,986 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:29:02,015 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:29:02,016 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:29:02,016 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:29:02,016 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:29:02,016 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:29:02,016 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:29:02,016 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:29:02,017 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:29:02,037 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2020-10-29 09:29:02,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-29 09:29:02,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:29:02,046 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] [2020-10-29 09:29:02,046 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:29:02,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:29:02,054 INFO L82 PathProgramCache]: Analyzing trace with hash -431859683, now seen corresponding path program 1 times [2020-10-29 09:29:02,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:29:02,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811426990] [2020-10-29 09:29:02,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:29:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:02,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:02,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:02,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:04,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:04,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-29 09:29:04,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 09:29:04,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2254 [2020-10-29 09:29:04,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:04,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:04,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:29:04,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:29:04,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-29 09:29:04,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 09:29:04,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:29:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:04,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:04,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:04,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:29:04,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:04,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 09:29:04,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:04,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:04,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:29:04,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:04,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:29:04,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:29:04,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:29:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:04,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:04,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:04,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:04,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-29 09:29:04,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:29:04,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-29 09:29:04,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:04,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:04,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:29:04,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:04,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 09:29:04,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:29:04,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:29:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:04,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:04,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:04,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:04,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:04,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 09:29:04,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:04,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:04,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:29:04,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:04,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:29:04,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:29:04,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 09:29:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:04,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:04,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:04,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:04,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-29 09:29:04,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:29:04,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-29 09:29:04,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:04,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:04,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:29:04,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 09:29:04,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 09:29:04,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:04,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:29:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:05,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:05,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:05,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:05,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:05,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 09:29:05,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:05,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:29:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 09:29:05,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:29:05,034 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 09:29:05,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811426990] [2020-10-29 09:29:05,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:29:05,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 09:29:05,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832010300] [2020-10-29 09:29:05,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 09:29:05,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:29:05,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 09:29:05,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-29 09:29:05,064 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 8 states. [2020-10-29 09:29:05,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:29:05,474 INFO L93 Difference]: Finished difference Result 126 states and 171 transitions. [2020-10-29 09:29:05,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 09:29:05,477 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2020-10-29 09:29:05,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:29:05,487 INFO L225 Difference]: With dead ends: 126 [2020-10-29 09:29:05,487 INFO L226 Difference]: Without dead ends: 49 [2020-10-29 09:29:05,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-29 09:29:05,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-29 09:29:05,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-29 09:29:05,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-29 09:29:05,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2020-10-29 09:29:05,544 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 39 [2020-10-29 09:29:05,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:29:05,546 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2020-10-29 09:29:05,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 09:29:05,546 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2020-10-29 09:29:05,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-29 09:29:05,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:29:05,549 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] [2020-10-29 09:29:05,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:29:05,550 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:29:05,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:29:05,551 INFO L82 PathProgramCache]: Analyzing trace with hash -19764992, now seen corresponding path program 1 times [2020-10-29 09:29:05,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:29:05,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809409615] [2020-10-29 09:29:05,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:29:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:05,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:05,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:06,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:07,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:07,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-29 09:29:07,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 09:29:07,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2021 [2020-10-29 09:29:07,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:07,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:07,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 09:29:07,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 09:29:07,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 09:29:07,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:07,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:29:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:07,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:07,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:07,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:29:07,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:07,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 09:29:07,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:07,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:07,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:29:07,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:07,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:29:07,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:07,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:29:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:07,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:07,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:07,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-29 09:29:07,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:07,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 09:29:07,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:07,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:07,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:29:07,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:07,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 09:29:07,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:29:07,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:29:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:07,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:07,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:07,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:07,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:07,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 09:29:07,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:07,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:29:07,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:07,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 09:29:07,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:07,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 09:29:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:07,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:07,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:07,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 09:29:07,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:07,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 09:29:07,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:07,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:07,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:29:07,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 09:29:07,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 09:29:07,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:07,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:29:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:07,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:07,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:07,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:07,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:07,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 09:29:07,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:07,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:07,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:29:07,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:07,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 09:29:07,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:07,908 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 09:29:07,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809409615] [2020-10-29 09:29:07,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:29:07,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 09:29:07,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226729398] [2020-10-29 09:29:07,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 09:29:07,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:29:07,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 09:29:07,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-29 09:29:07,913 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand 10 states. [2020-10-29 09:29:08,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:29:08,288 INFO L93 Difference]: Finished difference Result 73 states and 90 transitions. [2020-10-29 09:29:08,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 09:29:08,289 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2020-10-29 09:29:08,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:29:08,291 INFO L225 Difference]: With dead ends: 73 [2020-10-29 09:29:08,291 INFO L226 Difference]: Without dead ends: 52 [2020-10-29 09:29:08,292 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2020-10-29 09:29:08,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-29 09:29:08,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-10-29 09:29:08,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-29 09:29:08,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-10-29 09:29:08,304 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 40 [2020-10-29 09:29:08,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:29:08,305 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-10-29 09:29:08,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 09:29:08,305 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-10-29 09:29:08,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-29 09:29:08,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:29:08,307 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] [2020-10-29 09:29:08,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:29:08,307 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:29:08,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:29:08,308 INFO L82 PathProgramCache]: Analyzing trace with hash -52928264, now seen corresponding path program 1 times [2020-10-29 09:29:08,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:29:08,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514867856] [2020-10-29 09:29:08,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:29:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:08,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:10,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:10,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-29 09:29:10,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:10,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1733 [2020-10-29 09:29:10,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:10,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:10,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-29 09:29:10,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:29:10,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 09:29:10,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:10,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:29:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:10,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:10,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:10,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:29:10,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:10,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:29:10,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:10,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:10,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:29:10,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:10,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:29:10,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:10,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:29:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:10,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:10,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:10,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 09:29:10,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:10,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-10-29 09:29:10,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:10,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:10,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:29:10,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:10,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 09:29:10,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:29:10,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:29:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:10,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:10,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:10,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:10,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:10,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 09:29:10,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:10,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:10,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:29:10,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:10,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 09:29:10,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:29:11,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 09:29:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:11,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:11,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:11,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:11,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:11,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 09:29:11,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:11,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 09:29:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 09:29:11,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:11,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 09:29:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:11,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:11,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:11,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 09:29:11,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:11,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-29 09:29:11,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:11,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:11,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 09:29:11,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:29:11,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 09:29:11,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:29:11,810 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-10-29 09:29:12,258 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2020-10-29 09:29:12,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:29:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:12,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:12,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:12,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:12,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:12,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-29 09:29:12,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:12,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:12,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 09:29:12,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:29:12,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:29:12,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:29:12,998 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2020-10-29 09:29:13,034 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 09:29:13,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514867856] [2020-10-29 09:29:13,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:29:13,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-29 09:29:13,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812392610] [2020-10-29 09:29:13,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-29 09:29:13,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:29:13,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-29 09:29:13,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2020-10-29 09:29:13,039 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 27 states. [2020-10-29 09:29:13,799 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-29 09:29:15,105 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2020-10-29 09:29:15,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:29:15,957 INFO L93 Difference]: Finished difference Result 76 states and 95 transitions. [2020-10-29 09:29:15,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 09:29:15,962 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 48 [2020-10-29 09:29:15,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:29:15,967 INFO L225 Difference]: With dead ends: 76 [2020-10-29 09:29:15,968 INFO L226 Difference]: Without dead ends: 72 [2020-10-29 09:29:15,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=160, Invalid=1732, Unknown=0, NotChecked=0, Total=1892 [2020-10-29 09:29:15,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-29 09:29:15,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 57. [2020-10-29 09:29:15,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-29 09:29:15,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2020-10-29 09:29:15,987 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 48 [2020-10-29 09:29:15,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:29:15,988 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2020-10-29 09:29:15,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-29 09:29:15,988 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2020-10-29 09:29:15,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-29 09:29:15,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:29:15,990 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] [2020-10-29 09:29:15,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 09:29:15,990 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:29:15,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:29:15,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1157792891, now seen corresponding path program 2 times [2020-10-29 09:29:15,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:29:15,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343753364] [2020-10-29 09:29:15,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:29:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:16,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:16,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:16,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:16,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-29 09:29:16,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:29:16,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 948 [2020-10-29 09:29:16,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:16,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:16,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 09:29:16,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:29:16,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-29 09:29:16,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:17,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:29:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:17,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:17,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:17,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:29:17,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:17,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:29:17,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:17,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:17,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:29:17,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:17,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:29:17,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:17,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:29:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:17,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:17,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:17,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:17,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 09:29:17,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:29:17,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-29 09:29:17,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:17,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:17,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:29:17,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:17,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 09:29:17,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:29:17,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:29:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:17,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:17,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:17,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:17,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:17,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 09:29:17,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:17,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:29:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:17,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:29:17,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:29:17,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 09:29:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:17,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:17,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:17,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:17,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:17,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 09:29:17,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:17,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:17,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:29:17,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:17,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:29:17,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:29:17,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 09:29:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:17,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:17,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:17,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-29 09:29:17,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:17,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 09:29:17,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:17,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:17,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:29:17,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 09:29:17,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 09:29:17,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:17,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:29:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:17,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:17,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:17,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:17,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:17,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 09:29:17,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:17,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:17,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:29:17,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 09:29:17,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:29:17,373 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-29 09:29:17,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343753364] [2020-10-29 09:29:17,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:29:17,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 09:29:17,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245062901] [2020-10-29 09:29:17,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 09:29:17,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:29:17,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 09:29:17,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-29 09:29:17,376 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand 9 states. [2020-10-29 09:29:17,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:29:17,736 INFO L93 Difference]: Finished difference Result 77 states and 94 transitions. [2020-10-29 09:29:17,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 09:29:17,737 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2020-10-29 09:29:17,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:29:17,738 INFO L225 Difference]: With dead ends: 77 [2020-10-29 09:29:17,739 INFO L226 Difference]: Without dead ends: 55 [2020-10-29 09:29:17,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-29 09:29:17,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-29 09:29:17,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-29 09:29:17,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-29 09:29:17,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 64 transitions. [2020-10-29 09:29:17,750 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 64 transitions. Word has length 49 [2020-10-29 09:29:17,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:29:17,751 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 64 transitions. [2020-10-29 09:29:17,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 09:29:17,751 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2020-10-29 09:29:17,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-29 09:29:17,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:29:17,753 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] [2020-10-29 09:29:17,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 09:29:17,754 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:29:17,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:29:17,754 INFO L82 PathProgramCache]: Analyzing trace with hash -144661634, now seen corresponding path program 1 times [2020-10-29 09:29:17,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:29:17,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148848243] [2020-10-29 09:29:17,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:29:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:17,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:17,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:18,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:19,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:19,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-29 09:29:19,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 09:29:19,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2134 [2020-10-29 09:29:19,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:19,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:19,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 09:29:19,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:29:19,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-29 09:29:19,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:19,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:29:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:19,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:19,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:19,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:29:19,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:19,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:29:19,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:19,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:19,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:29:19,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:19,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:29:19,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:20,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:29:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:20,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:20,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:20,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:20,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 09:29:20,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:29:20,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-29 09:29:20,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:20,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:20,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:29:20,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:20,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 09:29:20,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:20,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:29:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:20,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:20,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:20,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:20,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:20,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 09:29:20,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:20,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:20,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:29:20,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:20,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:29:20,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:20,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 09:29:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:20,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:20,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:20,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:20,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:20,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 09:29:20,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:20,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:20,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:29:20,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:20,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:29:20,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:20,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 09:29:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:20,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:20,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:20,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:20,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 09:29:20,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:29:20,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-29 09:29:20,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:20,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:20,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 09:29:20,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:29:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 09:29:20,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:20,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:29:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:20,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:20,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:20,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:20,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:20,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 09:29:20,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:20,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:20,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 09:29:20,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:29:20,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:29:20,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 09:29:20,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148848243] [2020-10-29 09:29:20,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:29:20,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 09:29:20,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304020362] [2020-10-29 09:29:20,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 09:29:20,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:29:20,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 09:29:20,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2020-10-29 09:29:20,906 INFO L87 Difference]: Start difference. First operand 55 states and 64 transitions. Second operand 19 states. [2020-10-29 09:29:21,917 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2020-10-29 09:29:22,141 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-29 09:29:22,322 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2020-10-29 09:29:22,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:29:22,597 INFO L93 Difference]: Finished difference Result 72 states and 86 transitions. [2020-10-29 09:29:22,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 09:29:22,599 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 50 [2020-10-29 09:29:22,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:29:22,600 INFO L225 Difference]: With dead ends: 72 [2020-10-29 09:29:22,601 INFO L226 Difference]: Without dead ends: 52 [2020-10-29 09:29:22,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=769, Unknown=0, NotChecked=0, Total=870 [2020-10-29 09:29:22,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-29 09:29:22,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-10-29 09:29:22,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-29 09:29:22,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2020-10-29 09:29:22,621 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 50 [2020-10-29 09:29:22,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:29:22,622 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2020-10-29 09:29:22,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 09:29:22,622 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2020-10-29 09:29:22,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-29 09:29:22,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:29:22,626 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] [2020-10-29 09:29:22,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 09:29:22,626 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:29:22,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:29:22,627 INFO L82 PathProgramCache]: Analyzing trace with hash -7842672, now seen corresponding path program 1 times [2020-10-29 09:29:22,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:29:22,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679525655] [2020-10-29 09:29:22,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:29:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:22,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:24,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:24,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 09:29:24,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:24,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1602 [2020-10-29 09:29:24,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:24,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 09:29:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:29:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-29 09:29:24,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:29:24,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:29:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:24,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:24,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:24,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:29:24,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:24,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 09:29:24,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:24,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:24,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:29:24,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:24,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:29:24,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:24,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:29:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:24,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:24,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:24,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 09:29:24,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:24,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-29 09:29:24,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:24,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:24,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:29:24,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:24,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 09:29:24,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:24,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:29:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:24,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:24,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:24,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:24,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:24,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 09:29:24,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:24,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:24,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:29:24,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:24,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:29:24,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:24,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 09:29:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:24,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:24,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:24,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:24,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:24,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 09:29:24,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:24,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:24,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:29:24,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:24,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:29:24,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:24,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 09:29:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:24,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:25,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:25,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 09:29:25,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:25,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-29 09:29:25,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:25,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:25,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:29:25,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:29:25,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 09:29:25,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:25,775 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2020-10-29 09:29:26,036 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-10-29 09:29:26,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:29:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:26,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:26,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:26,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:26,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:26,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 09:29:26,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:26,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:26,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:29:26,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:29:26,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:29:26,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:26,349 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 09:29:26,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679525655] [2020-10-29 09:29:26,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:29:26,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-29 09:29:26,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874457888] [2020-10-29 09:29:26,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-29 09:29:26,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:29:26,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-29 09:29:26,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=461, Unknown=0, NotChecked=0, Total=506 [2020-10-29 09:29:26,355 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand 23 states. [2020-10-29 09:29:28,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:29:28,207 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2020-10-29 09:29:28,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 09:29:28,209 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 52 [2020-10-29 09:29:28,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:29:28,211 INFO L225 Difference]: With dead ends: 62 [2020-10-29 09:29:28,211 INFO L226 Difference]: Without dead ends: 58 [2020-10-29 09:29:28,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=92, Invalid=900, Unknown=0, NotChecked=0, Total=992 [2020-10-29 09:29:28,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-29 09:29:28,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-29 09:29:28,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-29 09:29:28,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2020-10-29 09:29:28,226 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 52 [2020-10-29 09:29:28,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:29:28,226 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2020-10-29 09:29:28,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-29 09:29:28,226 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2020-10-29 09:29:28,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-29 09:29:28,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:29:28,228 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] [2020-10-29 09:29:28,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 09:29:28,228 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:29:28,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:29:28,229 INFO L82 PathProgramCache]: Analyzing trace with hash 34162638, now seen corresponding path program 1 times [2020-10-29 09:29:28,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:29:28,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371129392] [2020-10-29 09:29:28,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:29:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:28,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:28,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:28,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:28,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:30,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:30,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 09:29:30,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 09:29:30,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2706 [2020-10-29 09:29:30,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:30,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:30,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:29:30,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:29:30,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 09:29:30,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:31,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:29:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:31,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:31,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:31,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:29:31,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:31,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 09:29:31,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:31,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:31,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:29:31,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:29:31,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:29:31,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:29:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:31,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:31,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:31,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:31,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 09:29:31,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:29:31,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-29 09:29:31,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:31,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:31,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:29:31,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:31,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 09:29:31,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:31,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:29:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:31,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:31,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:31,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:31,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:31,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 09:29:31,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:31,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:31,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:29:31,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:31,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:29:31,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:31,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 09:29:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:31,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:31,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:31,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:31,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:31,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 09:29:31,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:31,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:31,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:29:31,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:31,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:29:31,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:31,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 09:29:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:31,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:31,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:31,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:31,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 09:29:31,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:29:31,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 09:29:31,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:31,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:31,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:29:31,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:31,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 09:29:31,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:31,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:29:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:31,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:31,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:31,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:31,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:31,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 09:29:31,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:31,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:31,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:29:31,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:31,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:29:31,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:31,428 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-29 09:29:31,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371129392] [2020-10-29 09:29:31,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:29:31,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 09:29:31,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33773652] [2020-10-29 09:29:31,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 09:29:31,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:29:31,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 09:29:31,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 09:29:31,434 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand 8 states. [2020-10-29 09:29:31,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:29:31,671 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2020-10-29 09:29:31,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 09:29:31,672 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-10-29 09:29:31,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:29:31,674 INFO L225 Difference]: With dead ends: 63 [2020-10-29 09:29:31,674 INFO L226 Difference]: Without dead ends: 48 [2020-10-29 09:29:31,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-29 09:29:31,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-29 09:29:31,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-29 09:29:31,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-29 09:29:31,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-10-29 09:29:31,686 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 52 [2020-10-29 09:29:31,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:29:31,686 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-10-29 09:29:31,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 09:29:31,686 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-10-29 09:29:31,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-29 09:29:31,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:29:31,687 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, 1, 1] [2020-10-29 09:29:31,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 09:29:31,688 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:29:31,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:29:31,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1038390955, now seen corresponding path program 1 times [2020-10-29 09:29:31,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:29:31,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103941205] [2020-10-29 09:29:31,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:29:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:31,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:32,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:33,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:36,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:36,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:36,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 09:29:36,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 09:29:36,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5206 [2020-10-29 09:29:36,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:36,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:36,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-29 09:29:36,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:29:36,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-29 09:29:36,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:37,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:29:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:37,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:37,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:37,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:29:37,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:37,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:29:37,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:37,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:37,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:29:37,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:37,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:29:37,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:37,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:29:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:37,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:37,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:37,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 09:29:37,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:37,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-29 09:29:37,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:37,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:37,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 09:29:37,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:37,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 09:29:37,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:37,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:29:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:37,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:37,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:37,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:37,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:37,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 09:29:37,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:37,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:29:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:29:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 09:29:37,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:38,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 09:29:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:38,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:38,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:38,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:38,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:38,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 09:29:38,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:38,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:38,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:29:38,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:29:38,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:29:38,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:38,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 09:29:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:38,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:38,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:38,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 09:29:38,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:38,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-29 09:29:38,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:38,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:38,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 09:29:38,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:29:38,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 09:29:38,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:39,879 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 09:29:40,417 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2020-10-29 09:29:41,563 WARN L193 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 121 [2020-10-29 09:29:51,781 WARN L193 SmtUtils]: Spent 8.58 s on a formula simplification. DAG size of input: 175 DAG size of output: 154 [2020-10-29 09:29:53,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:29:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:29:53,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:29:53,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:29:53,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:29:53,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:29:53,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 09:29:53,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:29:53,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:29:53,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 09:29:53,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:29:53,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:29:53,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:29:54,325 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-10-29 09:29:54,391 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 09:29:54,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103941205] [2020-10-29 09:29:54,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:29:54,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-29 09:29:54,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37870735] [2020-10-29 09:29:54,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-29 09:29:54,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:29:54,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-29 09:29:54,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=753, Unknown=0, NotChecked=0, Total=812 [2020-10-29 09:29:54,403 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 29 states. [2020-10-29 09:29:55,396 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-10-29 09:30:03,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:30:03,487 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2020-10-29 09:30:03,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 09:30:03,488 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 54 [2020-10-29 09:30:03,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:30:03,490 INFO L225 Difference]: With dead ends: 77 [2020-10-29 09:30:03,490 INFO L226 Difference]: Without dead ends: 73 [2020-10-29 09:30:03,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=126, Invalid=1514, Unknown=0, NotChecked=0, Total=1640 [2020-10-29 09:30:03,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-29 09:30:03,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 65. [2020-10-29 09:30:03,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-29 09:30:03,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 72 transitions. [2020-10-29 09:30:03,505 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 72 transitions. Word has length 54 [2020-10-29 09:30:03,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:30:03,506 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 72 transitions. [2020-10-29 09:30:03,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-29 09:30:03,506 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 72 transitions. [2020-10-29 09:30:03,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-29 09:30:03,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:30:03,507 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, 1, 1, 1, 1, 1] [2020-10-29 09:30:03,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 09:30:03,508 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:30:03,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:30:03,508 INFO L82 PathProgramCache]: Analyzing trace with hash 2098815750, now seen corresponding path program 1 times [2020-10-29 09:30:03,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:30:03,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830690116] [2020-10-29 09:30:03,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:30:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:03,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:03,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:03,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:04,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:05,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:08,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:08,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 09:30:08,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 09:30:08,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 09:30:08,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:08,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:08,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 09:30:08,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:30:08,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-29 09:30:08,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:08,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:30:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:08,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:08,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:08,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:30:08,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:08,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:30:08,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:08,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:08,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:30:08,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:08,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:30:08,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:08,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:30:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:08,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:08,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:08,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:08,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 09:30:08,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:30:08,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 09:30:08,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:08,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:08,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:30:08,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:08,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 09:30:08,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:08,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:30:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:08,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:08,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:08,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:08,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:08,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:30:08,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:08,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:08,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:30:08,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:08,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:30:08,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:08,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 09:30:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:08,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:08,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:08,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:08,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:08,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:30:08,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:08,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:30:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:30:08,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:08,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 09:30:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:08,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:08,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:08,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 09:30:08,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:08,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 09:30:08,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:08,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:08,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:30:08,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:08,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 09:30:08,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:08,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:30:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:08,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:08,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:08,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:08,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:08,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 09:30:08,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:08,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:08,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:30:08,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:08,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:30:08,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:30:08,860 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-29 09:30:08,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830690116] [2020-10-29 09:30:08,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:30:08,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 09:30:08,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524899043] [2020-10-29 09:30:08,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 09:30:08,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:30:08,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 09:30:08,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-29 09:30:08,863 INFO L87 Difference]: Start difference. First operand 65 states and 72 transitions. Second operand 9 states. [2020-10-29 09:30:09,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:30:09,263 INFO L93 Difference]: Finished difference Result 78 states and 87 transitions. [2020-10-29 09:30:09,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 09:30:09,264 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2020-10-29 09:30:09,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:30:09,265 INFO L225 Difference]: With dead ends: 78 [2020-10-29 09:30:09,265 INFO L226 Difference]: Without dead ends: 73 [2020-10-29 09:30:09,266 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 [2020-10-29 09:30:09,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-29 09:30:09,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2020-10-29 09:30:09,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-29 09:30:09,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2020-10-29 09:30:09,296 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 57 [2020-10-29 09:30:09,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:30:09,297 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2020-10-29 09:30:09,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 09:30:09,297 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2020-10-29 09:30:09,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-29 09:30:09,304 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:30:09,305 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2020-10-29 09:30:09,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 09:30:09,305 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:30:09,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:30:09,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1891812189, now seen corresponding path program 2 times [2020-10-29 09:30:09,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:30:09,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401351885] [2020-10-29 09:30:09,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:30:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:09,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:09,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:13,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:14,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:14,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 09:30:14,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 09:30:14,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-29 09:30:14,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:14,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:14,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-29 09:30:14,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:30:14,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-29 09:30:14,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:14,608 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2020-10-29 09:30:14,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:30:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:14,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:14,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:14,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:30:14,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:14,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 09:30:14,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:14,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:14,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:30:14,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:14,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:30:14,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:14,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:30:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:14,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:15,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:15,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-29 09:30:15,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:15,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-29 09:30:15,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:15,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:15,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 09:30:15,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:15,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 09:30:15,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:15,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:30:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:15,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:15,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:15,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:15,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:15,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 09:30:15,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:15,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:15,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:30:15,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:15,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:30:15,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:15,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 09:30:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:15,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:15,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:15,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:15,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:15,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 09:30:15,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:15,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:15,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 09:30:15,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:15,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 09:30:15,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:16,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 09:30:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:16,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:16,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:16,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:16,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:16,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 09:30:16,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:16,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:30:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:30:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:30:16,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:16,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 09:30:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:16,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:16,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:16,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 09:30:16,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:16,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-29 09:30:16,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:16,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:16,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 09:30:16,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:30:16,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 09:30:16,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:17,128 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2020-10-29 09:30:17,511 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-29 09:30:17,934 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2020-10-29 09:30:18,499 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-29 09:30:18,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:30:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:18,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:18,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:18,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:18,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:18,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 09:30:18,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:18,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:18,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 09:30:18,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:30:18,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:30:18,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:19,120 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 37 [2020-10-29 09:30:19,166 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-29 09:30:19,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401351885] [2020-10-29 09:30:19,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:30:19,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-29 09:30:19,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563507366] [2020-10-29 09:30:19,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-29 09:30:19,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:30:19,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-29 09:30:19,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=981, Unknown=0, NotChecked=0, Total=1056 [2020-10-29 09:30:19,169 INFO L87 Difference]: Start difference. First operand 69 states and 77 transitions. Second operand 33 states. [2020-10-29 09:30:22,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:30:22,616 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2020-10-29 09:30:22,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 09:30:22,617 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 62 [2020-10-29 09:30:22,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:30:22,619 INFO L225 Difference]: With dead ends: 83 [2020-10-29 09:30:22,619 INFO L226 Difference]: Without dead ends: 79 [2020-10-29 09:30:22,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=164, Invalid=1998, Unknown=0, NotChecked=0, Total=2162 [2020-10-29 09:30:22,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-29 09:30:22,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 52. [2020-10-29 09:30:22,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-29 09:30:22,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2020-10-29 09:30:22,648 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 62 [2020-10-29 09:30:22,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:30:22,650 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2020-10-29 09:30:22,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-29 09:30:22,650 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2020-10-29 09:30:22,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-29 09:30:22,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:30:22,651 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, 1, 1, 1, 1] [2020-10-29 09:30:22,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 09:30:22,652 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:30:22,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:30:22,652 INFO L82 PathProgramCache]: Analyzing trace with hash 677250497, now seen corresponding path program 1 times [2020-10-29 09:30:22,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:30:22,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132938037] [2020-10-29 09:30:22,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:30:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:22,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:23,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:24,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:24,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:26,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:26,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:27,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:27,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:27,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:27,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-29 09:30:27,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 09:30:27,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-29 09:30:27,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:27,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-29 09:30:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:30:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-29 09:30:27,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:28,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:30:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:28,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:28,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:28,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:30:28,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:28,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 09:30:28,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:28,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:28,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:30:28,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:28,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:30:28,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:28,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:30:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:28,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:28,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:28,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 09:30:28,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:28,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-29 09:30:28,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:28,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:28,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 09:30:28,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:28,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 09:30:28,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:28,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:30:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:28,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:28,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:28,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:28,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:28,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 09:30:28,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:28,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:28,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:30:28,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:28,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:30:28,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:28,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 09:30:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:28,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:28,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:28,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:28,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:28,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 09:30:28,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:28,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:28,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 09:30:28,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:30:28,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:30:28,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:29,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 09:30:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:29,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:29,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:29,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 09:30:29,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:29,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-29 09:30:29,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:29,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:29,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 09:30:29,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:30:29,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 09:30:29,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:30,016 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 47 [2020-10-29 09:30:30,524 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2020-10-29 09:30:31,063 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 09:30:31,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:30:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:31,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:31,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:31,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:31,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:31,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 09:30:31,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:31,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:31,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 09:30:31,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:30:31,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:30:31,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:31,535 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 28 [2020-10-29 09:30:31,569 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 09:30:31,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132938037] [2020-10-29 09:30:31,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:30:31,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-29 09:30:31,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56697086] [2020-10-29 09:30:31,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-29 09:30:31,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:30:31,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-29 09:30:31,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=754, Unknown=0, NotChecked=0, Total=812 [2020-10-29 09:30:31,571 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 29 states. [2020-10-29 09:30:32,363 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-10-29 09:30:34,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:30:34,625 INFO L93 Difference]: Finished difference Result 82 states and 91 transitions. [2020-10-29 09:30:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 09:30:34,626 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 58 [2020-10-29 09:30:34,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:30:34,628 INFO L225 Difference]: With dead ends: 82 [2020-10-29 09:30:34,628 INFO L226 Difference]: Without dead ends: 57 [2020-10-29 09:30:34,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=122, Invalid=1438, Unknown=0, NotChecked=0, Total=1560 [2020-10-29 09:30:34,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-29 09:30:34,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2020-10-29 09:30:34,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-29 09:30:34,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2020-10-29 09:30:34,640 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 58 [2020-10-29 09:30:34,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:30:34,640 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2020-10-29 09:30:34,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-29 09:30:34,641 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2020-10-29 09:30:34,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-29 09:30:34,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:30:34,642 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, 1, 1, 1, 1, 1] [2020-10-29 09:30:34,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 09:30:34,642 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:30:34,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:30:34,643 INFO L82 PathProgramCache]: Analyzing trace with hash 813887417, now seen corresponding path program 2 times [2020-10-29 09:30:34,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:30:34,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334124850] [2020-10-29 09:30:34,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:30:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:34,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:34,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:35,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:38,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:39,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:39,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 09:30:39,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 09:30:39,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 09:30:39,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:39,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:39,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-29 09:30:39,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:30:39,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 09:30:39,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:40,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:30:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:40,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:40,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:40,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:30:40,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:40,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 09:30:40,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:40,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:30:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:30:40,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:40,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:30:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:40,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:40,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:40,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-29 09:30:40,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:40,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 519 [2020-10-29 09:30:40,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:40,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 09:30:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 09:30:40,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:41,147 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2020-10-29 09:30:41,345 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-10-29 09:30:41,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:30:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:41,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:41,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:41,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:41,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:41,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 09:30:41,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:41,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:41,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:30:41,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:41,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 09:30:41,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:41,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 09:30:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:41,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:41,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:41,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:41,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:41,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 09:30:41,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:41,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:41,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 09:30:41,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:30:41,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:30:41,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:41,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 09:30:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:41,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:42,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:42,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:42,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:42,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 09:30:42,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:42,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:42,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:30:42,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:30:42,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:30:42,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:42,546 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-10-29 09:30:42,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 09:30:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:42,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:42,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:42,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 09:30:42,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:42,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-29 09:30:42,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:42,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:42,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 09:30:42,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:30:42,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 09:30:42,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:43,463 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2020-10-29 09:30:43,911 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2020-10-29 09:30:44,706 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 79 [2020-10-29 09:30:47,627 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 159 DAG size of output: 155 [2020-10-29 09:30:48,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:30:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:48,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:48,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:48,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:48,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:48,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 09:30:48,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:48,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:48,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 09:30:48,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:30:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:30:48,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:49,376 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2020-10-29 09:30:49,422 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-29 09:30:49,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334124850] [2020-10-29 09:30:49,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:30:49,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-29 09:30:49,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262070063] [2020-10-29 09:30:49,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-29 09:30:49,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:30:49,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-29 09:30:49,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=1053, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 09:30:49,425 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand 34 states. [2020-10-29 09:30:50,433 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-10-29 09:30:54,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:30:54,871 INFO L93 Difference]: Finished difference Result 88 states and 99 transitions. [2020-10-29 09:30:54,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 09:30:54,872 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 66 [2020-10-29 09:30:54,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:30:54,874 INFO L225 Difference]: With dead ends: 88 [2020-10-29 09:30:54,874 INFO L226 Difference]: Without dead ends: 84 [2020-10-29 09:30:54,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=156, Invalid=2294, Unknown=0, NotChecked=0, Total=2450 [2020-10-29 09:30:54,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-29 09:30:54,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2020-10-29 09:30:54,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-29 09:30:54,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2020-10-29 09:30:54,889 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 66 [2020-10-29 09:30:54,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:30:54,889 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2020-10-29 09:30:54,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-29 09:30:54,889 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2020-10-29 09:30:54,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-29 09:30:54,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:30:54,890 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:30:54,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 09:30:54,891 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:30:54,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:30:54,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1177995064, now seen corresponding path program 1 times [2020-10-29 09:30:54,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:30:54,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679698621] [2020-10-29 09:30:54,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:30:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:54,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:55,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:55,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:55,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:55,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:58,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:58,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 09:30:58,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 09:30:58,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3796 [2020-10-29 09:30:58,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:58,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:58,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 09:30:58,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 09:30:58,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 09:30:58,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:58,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:30:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:58,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:58,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:58,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:30:58,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:58,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:30:58,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:58,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:58,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:30:58,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:58,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:30:58,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:58,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:30:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:58,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:59,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:59,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-29 09:30:59,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:59,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-29 09:30:59,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:59,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:59,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 09:30:59,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:59,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 09:30:59,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:59,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:30:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:59,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:59,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:59,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:59,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:59,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 09:30:59,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:59,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:30:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 09:30:59,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:59,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 09:30:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:59,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:59,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:59,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:59,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:59,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 09:30:59,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:59,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:59,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:30:59,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:59,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 09:30:59,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:30:59,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 09:30:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:59,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:59,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:59,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:59,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:59,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 09:30:59,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:59,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:59,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:30:59,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:59,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 09:30:59,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:30:59,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 09:30:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:59,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:59,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:59,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 09:30:59,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:59,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 09:30:59,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:59,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:59,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:30:59,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:59,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 09:30:59,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:59,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:30:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:30:59,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:30:59,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:30:59,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:30:59,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:30:59,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 09:30:59,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:30:59,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:30:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:30:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:30:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:30:59,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:30:59,527 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-29 09:30:59,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679698621] [2020-10-29 09:30:59,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:30:59,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 09:30:59,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258966333] [2020-10-29 09:30:59,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 09:30:59,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:30:59,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 09:30:59,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-10-29 09:30:59,531 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand 15 states. [2020-10-29 09:31:00,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:31:00,286 INFO L93 Difference]: Finished difference Result 94 states and 106 transitions. [2020-10-29 09:31:00,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 09:31:00,287 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 69 [2020-10-29 09:31:00,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:31:00,288 INFO L225 Difference]: With dead ends: 94 [2020-10-29 09:31:00,289 INFO L226 Difference]: Without dead ends: 89 [2020-10-29 09:31:00,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2020-10-29 09:31:00,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-29 09:31:00,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 74. [2020-10-29 09:31:00,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-29 09:31:00,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 82 transitions. [2020-10-29 09:31:00,303 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 82 transitions. Word has length 69 [2020-10-29 09:31:00,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:31:00,304 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 82 transitions. [2020-10-29 09:31:00,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 09:31:00,304 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 82 transitions. [2020-10-29 09:31:00,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-29 09:31:00,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:31:00,305 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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] [2020-10-29 09:31:00,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 09:31:00,305 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:31:00,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:31:00,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1074110031, now seen corresponding path program 3 times [2020-10-29 09:31:00,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:31:00,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [51543155] [2020-10-29 09:31:00,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:31:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:00,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:00,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:00,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:01,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:02,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:03,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:05,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:05,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:05,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 09:31:05,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 09:31:05,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-29 09:31:05,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:05,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 09:31:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 09:31:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-29 09:31:05,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:31:05,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:31:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:05,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:05,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:05,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:31:05,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:31:05,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 09:31:05,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:05,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:05,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:31:05,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:31:05,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:31:05,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:31:05,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:31:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:05,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:05,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:05,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 09:31:05,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:31:05,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-29 09:31:05,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:05,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:05,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 09:31:05,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:31:05,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 09:31:05,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:31:05,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:31:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:05,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:05,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:05,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:31:05,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:31:05,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 09:31:05,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:05,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:05,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:31:05,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:31:05,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 09:31:05,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:31:05,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 09:31:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:05,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:05,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:05,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:31:05,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:31:05,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 09:31:05,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:05,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:05,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:31:05,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:31:05,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 09:31:05,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:31:05,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 09:31:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:05,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:05,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:05,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:31:05,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:31:05,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 09:31:05,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:05,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:05,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:31:05,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:31:05,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 09:31:05,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:31:05,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 09:31:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:05,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:05,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:05,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:31:05,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:31:05,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 09:31:05,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:05,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:31:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:31:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 09:31:05,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:31:05,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 09:31:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:05,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:05,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:05,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 09:31:05,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:31:05,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 09:31:05,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:05,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:05,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:31:05,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 09:31:05,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 09:31:05,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:31:05,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:31:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:05,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:05,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:05,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:31:05,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:31:05,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 09:31:05,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:05,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:05,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:31:05,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:31:05,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 09:31:05,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:31:05,956 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-10-29 09:31:05,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [51543155] [2020-10-29 09:31:05,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:31:05,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 09:31:05,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200669426] [2020-10-29 09:31:05,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 09:31:05,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:31:05,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 09:31:05,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-29 09:31:05,960 INFO L87 Difference]: Start difference. First operand 74 states and 82 transitions. Second operand 13 states. [2020-10-29 09:31:06,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:31:06,552 INFO L93 Difference]: Finished difference Result 87 states and 96 transitions. [2020-10-29 09:31:06,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 09:31:06,553 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 74 [2020-10-29 09:31:06,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:31:06,554 INFO L225 Difference]: With dead ends: 87 [2020-10-29 09:31:06,555 INFO L226 Difference]: Without dead ends: 59 [2020-10-29 09:31:06,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2020-10-29 09:31:06,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-29 09:31:06,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-29 09:31:06,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-29 09:31:06,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2020-10-29 09:31:06,567 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 74 [2020-10-29 09:31:06,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:31:06,568 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2020-10-29 09:31:06,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 09:31:06,568 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2020-10-29 09:31:06,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-29 09:31:06,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:31:06,569 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:31:06,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 09:31:06,569 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:31:06,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:31:06,570 INFO L82 PathProgramCache]: Analyzing trace with hash -2098386993, now seen corresponding path program 4 times [2020-10-29 09:31:06,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:31:06,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735419764] [2020-10-29 09:31:06,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:31:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:06,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:06,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:07,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:08,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:10,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:11,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:11,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-29 09:31:11,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 09:31:11,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 09:31:11,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:11,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:11,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-29 09:31:11,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:31:11,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 09:31:11,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:31:11,896 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-10-29 09:31:12,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:31:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:12,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:12,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:12,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:31:12,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:31:12,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:31:12,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:12,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:12,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:31:12,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:31:12,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:31:12,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:31:12,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:31:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:12,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:12,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:12,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-29 09:31:12,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:31:12,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-29 09:31:12,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:12,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:12,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 09:31:12,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:31:12,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 09:31:12,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:31:13,199 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-10-29 09:31:13,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:31:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:13,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:13,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:13,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:31:13,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:31:13,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 09:31:13,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:13,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:13,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:31:13,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:31:13,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:31:13,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:31:13,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 09:31:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:13,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:13,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:13,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:31:13,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:31:13,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 09:31:13,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:13,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:13,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 09:31:13,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:31:13,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:31:13,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:31:13,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 09:31:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:13,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:13,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:13,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:31:13,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:31:13,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 09:31:13,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:13,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 09:31:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:31:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:31:13,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:31:14,225 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2020-10-29 09:31:14,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 09:31:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:14,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:14,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:14,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 09:31:14,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:31:14,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-29 09:31:14,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:14,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:14,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 09:31:14,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:31:14,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 09:31:14,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:31:14,868 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 34 [2020-10-29 09:31:15,185 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2020-10-29 09:31:15,780 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2020-10-29 09:31:17,149 WARN L193 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 107 [2020-10-29 09:31:17,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:31:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:31:17,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:31:17,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:31:17,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:31:17,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:31:17,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 09:31:17,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:31:17,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:31:17,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 09:31:17,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:31:17,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:31:17,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:31:17,679 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 16 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-29 09:31:17,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735419764] [2020-10-29 09:31:17,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:31:17,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-29 09:31:17,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972043478] [2020-10-29 09:31:17,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-29 09:31:17,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:31:17,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-29 09:31:17,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=1046, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 09:31:17,682 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 34 states. [2020-10-29 09:31:18,429 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-10-29 09:31:19,075 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-29 09:31:20,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:31:20,847 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2020-10-29 09:31:20,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 09:31:20,848 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 70 [2020-10-29 09:31:20,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:31:20,848 INFO L225 Difference]: With dead ends: 59 [2020-10-29 09:31:20,848 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 09:31:20,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=136, Invalid=1756, Unknown=0, NotChecked=0, Total=1892 [2020-10-29 09:31:20,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 09:31:20,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 09:31:20,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 09:31:20,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 09:31:20,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2020-10-29 09:31:20,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:31:20,852 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 09:31:20,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-29 09:31:20,852 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 09:31:20,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 09:31:20,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 09:31:20,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 09:31:21,086 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 297 [2020-10-29 09:31:21,223 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 286 [2020-10-29 09:31:26,045 WARN L193 SmtUtils]: Spent 4.44 s on a formula simplification. DAG size of input: 341 DAG size of output: 161 [2020-10-29 09:31:26,697 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 77 [2020-10-29 09:31:27,009 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 60 [2020-10-29 09:31:27,286 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 60 [2020-10-29 09:31:28,043 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 135 [2020-10-29 09:31:28,347 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-10-29 09:31:29,473 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 187 DAG size of output: 113 [2020-10-29 09:31:29,520 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2020-10-29 09:31:29,520 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-10-29 09:31:29,520 INFO L274 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-10-29 09:31:29,520 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-29 09:31:29,520 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-29 09:31:29,520 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 09:31:29,521 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |old(#t~string1.offset)| |#t~string1.offset|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-29 09:31:29,521 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 09:31:29,521 INFO L277 CegarLoopResult]: At program point myexitENTRY(lines 571 573) the Hoare annotation is: true [2020-10-29 09:31:29,521 INFO L277 CegarLoopResult]: At program point L572(line 572) the Hoare annotation is: true [2020-10-29 09:31:29,521 INFO L274 CegarLoopResult]: For program point myexitEXIT(lines 571 573) no Hoare annotation was computed. [2020-10-29 09:31:29,521 INFO L274 CegarLoopResult]: For program point __bswap_32ENTRY(lines 74 78) no Hoare annotation was computed. [2020-10-29 09:31:29,521 INFO L274 CegarLoopResult]: For program point __bswap_32FINAL(lines 74 78) no Hoare annotation was computed. [2020-10-29 09:31:29,521 INFO L274 CegarLoopResult]: For program point __bswap_32EXIT(lines 74 78) no Hoare annotation was computed. [2020-10-29 09:31:29,521 INFO L270 CegarLoopResult]: At program point L607(line 607) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |sll_circular_insert_#in~head.base| sll_circular_insert_~head.base) (= |sll_circular_insert_#in~index| sll_circular_insert_~index) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= sll_circular_insert_~data |sll_circular_insert_#in~data|) (= |old(#valid)| |#valid|) (= sll_circular_insert_~head.offset |sll_circular_insert_#in~head.offset|)) [2020-10-29 09:31:29,521 INFO L274 CegarLoopResult]: For program point L607-1(line 607) no Hoare annotation was computed. [2020-10-29 09:31:29,522 INFO L270 CegarLoopResult]: At program point sll_circular_insertENTRY(lines 606 627) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-29 09:31:29,523 INFO L270 CegarLoopResult]: At program point L610-2(lines 610 614) the Hoare annotation is: (let ((.cse37 (select |old(#memory_$Pointer$.offset)| |sll_circular_insert_#in~head.base|))) (let ((.cse31 (select .cse37 |sll_circular_insert_#in~head.offset|))) (let ((.cse5 (select |#memory_$Pointer$.base| sll_circular_insert_~snd_to_last~0.base)) (.cse18 (= .cse31 0)) (.cse27 (+ sll_circular_insert_~index 1))) (let ((.cse33 (@diff |old(#memory_$Pointer$.base)| |#memory_$Pointer$.base|)) (.cse34 (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (.cse35 (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (.cse32 (@diff |old(#memory_$Pointer$.offset)| |#memory_$Pointer$.offset|)) (.cse24 (<= .cse27 |sll_circular_insert_#in~index|)) (.cse1 (<= (+ |sll_circular_insert_#in~head.base| 1) |#StackHeapBarrier|)) (.cse16 (not .cse18)) (.cse30 (select (select |#memory_$Pointer$.base| |sll_circular_insert_#in~head.base|) |sll_circular_insert_#in~head.offset|)) (.cse26 (select (select |old(#memory_$Pointer$.base)| |sll_circular_insert_#in~head.base|) |sll_circular_insert_#in~head.offset|)) (.cse9 (= sll_circular_insert_~snd_to_last~0.base |sll_circular_insert_#in~head.base|)) (.cse19 (select .cse5 |sll_circular_insert_#in~head.offset|)) (.cse40 (select |#memory_$Pointer$.offset| |sll_circular_insert_#in~head.base|))) (let ((.cse6 (select .cse40 |sll_circular_insert_#in~head.offset|)) (.cse2 (and .cse9 (= .cse5 (select |old(#memory_$Pointer$.base)| sll_circular_insert_~snd_to_last~0.base)) (= |sll_circular_insert_#in~head.base| .cse19))) (.cse0 (= sll_circular_insert_~snd_to_last~0.base sll_circular_insert_~new_node~0.base)) (.cse8 (and .cse24 (or .cse1 .cse16 (let ((.cse38 (@diff .cse37 .cse40))) (let ((.cse39 (select .cse40 .cse38))) (and (= (store .cse37 .cse38 .cse39) .cse40) (or (= |sll_circular_insert_#in~head.base| .cse26) (not (= (select |old(#valid)| .cse26) 1)) (= (select (select |#memory_int| .cse30) 4) (select (select |old(#memory_int)| .cse26) 4))) (or (= .cse40 .cse37) (= .cse39 0)))))) (<= 2 |sll_circular_insert_#in~index|))) (.cse4 (or .cse35 (= .cse32 sll_circular_insert_~new_node~0.base))) (.cse7 (or (= .cse33 sll_circular_insert_~new_node~0.base) .cse34)) (.cse3 (= |sll_circular_insert_#in~index| sll_circular_insert_~index))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 (= (select .cse5 .cse6) sll_circular_insert_~last~1.base) .cse7 (= (select (select |#memory_$Pointer$.offset| sll_circular_insert_~snd_to_last~0.base) .cse6) sll_circular_insert_~last~1.offset)) .cse8) (let ((.cse36 (@diff |old(#memory_int)| |#memory_int|))) (let ((.cse10 (= (store |old(#memory_int)| .cse36 (select |#memory_int| .cse36)) |#memory_int|)) (.cse11 (or (= .cse36 sll_circular_insert_~new_node~0.base) (= |#memory_int| |old(#memory_int)|))) (.cse13 (= |sll_circular_insert_#in~head.base| sll_circular_insert_~head.base)) (.cse14 (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| .cse33 (select |#memory_$Pointer$.base| .cse33)))) (.cse21 (= (select (select |#memory_int| sll_circular_insert_~new_node~0.base) 4) |sll_circular_insert_#in~data|)) (.cse17 (<= (+ sll_circular_insert_~new_node~0.base 1) |#StackHeapBarrier|)) (.cse20 (or .cse35 (<= (+ .cse32 1) |#StackHeapBarrier|))) (.cse22 (or (<= (+ .cse33 1) |#StackHeapBarrier|) .cse34)) (.cse25 (= (select |old(#valid)| sll_circular_insert_~new_node~0.base) 0)) (.cse23 (= sll_circular_insert_~new_node~0.offset 0)) (.cse28 (= |#memory_$Pointer$.offset| (store |old(#memory_$Pointer$.offset)| .cse32 (select |#memory_$Pointer$.offset| .cse32)))) (.cse29 (= sll_circular_insert_~head.offset |sll_circular_insert_#in~head.offset|))) (or (let ((.cse12 (not (= sll_circular_insert_~snd_to_last~0.offset 0)))) (and (or .cse1 .cse9 (and (or .cse0 (and .cse10 .cse11) .cse12) (= .cse6 sll_circular_insert_~snd_to_last~0.offset))) .cse13 .cse14 (or .cse1 (let ((.cse15 (= 4 sll_circular_insert_~snd_to_last~0.offset))) (and (or .cse0 (= (select |old(#memory_int)| sll_circular_insert_~snd_to_last~0.base) (select |#memory_int| sll_circular_insert_~snd_to_last~0.base)) .cse15) (or .cse16 (not .cse15))))) .cse17 (or .cse1 .cse18 .cse12) (or (= sll_circular_insert_~snd_to_last~0.base .cse19) (not .cse9)) .cse20 (or .cse1 .cse2 (not (= (select |old(#valid)| (select (select (store |#memory_$Pointer$.base| sll_circular_insert_~snd_to_last~0.base (store .cse5 sll_circular_insert_~snd_to_last~0.offset sll_circular_insert_~new_node~0.base)) |sll_circular_insert_#in~head.base|) |sll_circular_insert_#in~head.offset|)) 1)) .cse21) .cse22 (<= 1 |sll_circular_insert_#in~index|) (or .cse0 .cse23) .cse24 .cse25 (or (= sll_circular_insert_~snd_to_last~0.base .cse26) .cse1) (<= |sll_circular_insert_#in~index| .cse27) .cse28 .cse29)) .cse8 (and (or .cse1 (and .cse4 .cse10 .cse11 .cse7)) .cse13 .cse14 .cse3 (or .cse1 .cse21) .cse17 .cse20 .cse22 (= .cse30 sll_circular_insert_~last~1.base) .cse25 .cse23 .cse28 (or .cse1 (= sll_circular_insert_~last~1.offset .cse31)) .cse29)))))))))) [2020-10-29 09:31:29,523 INFO L274 CegarLoopResult]: For program point L610-3(lines 606 627) no Hoare annotation was computed. [2020-10-29 09:31:29,523 INFO L274 CegarLoopResult]: For program point sll_circular_insertEXIT(lines 606 627) no Hoare annotation was computed. [2020-10-29 09:31:29,523 INFO L274 CegarLoopResult]: For program point L619(lines 619 624) no Hoare annotation was computed. [2020-10-29 09:31:29,523 INFO L274 CegarLoopResult]: For program point L619-2(lines 619 624) no Hoare annotation was computed. [2020-10-29 09:31:29,523 INFO L274 CegarLoopResult]: For program point L615-1(lines 606 627) no Hoare annotation was computed. [2020-10-29 09:31:29,523 INFO L274 CegarLoopResult]: For program point __bswap_64ENTRY(lines 79 83) no Hoare annotation was computed. [2020-10-29 09:31:29,524 INFO L274 CegarLoopResult]: For program point __bswap_64FINAL(lines 79 83) no Hoare annotation was computed. [2020-10-29 09:31:29,524 INFO L274 CegarLoopResult]: For program point __bswap_64EXIT(lines 79 83) no Hoare annotation was computed. [2020-10-29 09:31:29,524 INFO L270 CegarLoopResult]: At program point sll_circular_createENTRY(lines 583 594) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-29 09:31:29,524 INFO L274 CegarLoopResult]: For program point sll_circular_createFINAL(lines 583 594) no Hoare annotation was computed. [2020-10-29 09:31:29,524 INFO L270 CegarLoopResult]: At program point L587(line 587) the Hoare annotation is: (let ((.cse6 (<= (+ sll_circular_create_~head~0.base 1) |#StackHeapBarrier|))) (let ((.cse0 (let ((.cse9 (let ((.cse10 (= sll_circular_create_~data |sll_circular_create_#in~data|))) (or (and .cse6 .cse10) (and (let ((.cse11 (select |old(#memory_$Pointer$.offset)| |sll_circular_insert_#in~head.base|))) (or (<= (+ |sll_circular_insert_#in~head.base| 1) |#StackHeapBarrier|) (not (= (select .cse11 |sll_circular_insert_#in~head.offset|) 0)) (let ((.cse14 (select |#memory_$Pointer$.offset| |sll_circular_insert_#in~head.base|))) (let ((.cse12 (@diff .cse11 .cse14))) (let ((.cse13 (select .cse14 .cse12))) (and (= (store .cse11 .cse12 .cse13) .cse14) (let ((.cse15 (select (select |old(#memory_$Pointer$.base)| |sll_circular_insert_#in~head.base|) |sll_circular_insert_#in~head.offset|))) (or (= |sll_circular_insert_#in~head.base| .cse15) (not (= (select |old(#valid)| .cse15) 1)) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |sll_circular_insert_#in~head.base|) |sll_circular_insert_#in~head.offset|)) 4) (select (select |old(#memory_int)| .cse15) 4)))) (or (= .cse14 .cse11) (= .cse13 0)))))))) .cse10))))) (or (let ((.cse7 (@diff |old(#memory_$Pointer$.base)| |#memory_$Pointer$.base|)) (.cse8 (@diff |old(#memory_$Pointer$.offset)| |#memory_$Pointer$.offset|))) (and (or (<= (+ .cse7 1) |#StackHeapBarrier|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| .cse7 (select |#memory_$Pointer$.base| .cse7))) (= |#memory_$Pointer$.offset| (store |old(#memory_$Pointer$.offset)| .cse8 (select |#memory_$Pointer$.offset| .cse8))) .cse9 (or (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (<= (+ .cse8 1) |#StackHeapBarrier|)))) (and .cse9 (not (= sll_circular_create_~head~0.base 0)))))) (.cse1 (= sll_circular_create_~head~0.offset 0)) (.cse2 (= (select |#valid| sll_circular_create_~head~0.base) 1)) (.cse3 (= sll_circular_create_~last~0.offset 0)) (.cse4 (= (select (select |#memory_int| sll_circular_create_~head~0.base) 4) sll_circular_create_~data)) (.cse5 (= sll_circular_create_~head~0.base sll_circular_create_~last~0.base))) (or (and .cse0 .cse1 (<= (+ sll_circular_create_~len 2) |sll_circular_create_#in~len|) .cse2 .cse3 (<= 4 |sll_circular_create_#in~len|) .cse4) (and .cse5 .cse0 .cse1 .cse6 .cse2 .cse3 .cse4 (= |sll_circular_create_#in~len| sll_circular_create_~len)) (and .cse0 .cse1 (= (select (select |#memory_$Pointer$.base| sll_circular_create_~head~0.base) sll_circular_create_~head~0.offset) sll_circular_create_~last~0.base) (= (select (select |#memory_int| sll_circular_create_~last~0.base) 4) sll_circular_create_~data) .cse2 (<= (+ sll_circular_create_~len 1) |sll_circular_create_#in~len|) .cse3 .cse4 (not .cse5) (<= 2 sll_circular_create_~len) (not (= (select |#valid| sll_circular_create_~last~0.base) 0)) (= (select (select |#memory_$Pointer$.offset| sll_circular_create_~head~0.base) sll_circular_create_~head~0.offset) 0))))) [2020-10-29 09:31:29,525 INFO L274 CegarLoopResult]: For program point L587-1(line 587) no Hoare annotation was computed. [2020-10-29 09:31:29,525 INFO L274 CegarLoopResult]: For program point sll_circular_createEXIT(lines 583 594) no Hoare annotation was computed. [2020-10-29 09:31:29,525 INFO L270 CegarLoopResult]: At program point L584(line 584) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= sll_circular_create_~data |sll_circular_create_#in~data|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |sll_circular_create_#in~len| sll_circular_create_~len) (= |old(#valid)| |#valid|)) [2020-10-29 09:31:29,525 INFO L270 CegarLoopResult]: At program point L586-2(lines 586 591) the Hoare annotation is: (let ((.cse21 (select |#memory_$Pointer$.base| sll_circular_create_~head~0.base)) (.cse11 (store |#memory_$Pointer$.base| sll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| sll_circular_create_~last~0.base) sll_circular_create_~last~0.offset sll_circular_create_~head~0.base)))) (let ((.cse26 (select |#valid| sll_circular_create_~head~0.base)) (.cse20 (select .cse11 sll_circular_create_~head~0.base)) (.cse14 (select (select |#memory_int| sll_circular_create_~head~0.base) 4)) (.cse27 (select .cse21 0)) (.cse16 (+ sll_circular_create_~len 2))) (let ((.cse1 (<= .cse16 |sll_circular_create_#in~len|)) (.cse2 (= .cse14 (select (select |#memory_int| .cse27) 4))) (.cse12 (select .cse20 sll_circular_create_~head~0.offset)) (.cse6 (= sll_circular_create_~last~0.offset 0)) (.cse5 (= .cse26 1)) (.cse7 (= .cse26 (select |#valid| .cse27))) (.cse8 (= .cse14 sll_circular_create_~data)) (.cse9 (not (= sll_circular_create_~head~0.base 0))) (.cse10 (= (select (select |#memory_$Pointer$.offset| sll_circular_create_~head~0.base) 0) 0)) (.cse4 (= sll_circular_create_~data |sll_circular_create_#in~data|)) (.cse22 (= sll_circular_create_~head~0.base sll_circular_create_~last~0.base)) (.cse0 (= sll_circular_create_~head~0.offset 0)) (.cse15 (select (select |#memory_int| sll_circular_create_~last~0.base) 4)) (.cse3 (<= (+ sll_circular_create_~head~0.base 1) |#StackHeapBarrier|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (<= 4 |sll_circular_create_#in~len|) .cse8 .cse9 .cse10) (let ((.cse17 (store |#memory_$Pointer$.offset| sll_circular_create_~last~0.base (store (select |#memory_$Pointer$.offset| sll_circular_create_~last~0.base) sll_circular_create_~last~0.offset sll_circular_create_~head~0.offset)))) (let ((.cse13 (select .cse17 sll_circular_create_~head~0.base))) (let ((.cse18 (select .cse20 0)) (.cse19 (select .cse13 0))) (and .cse1 .cse2 (not (= (select |#valid| (select (select .cse11 .cse12) (select .cse13 sll_circular_create_~head~0.offset))) 0)) (<= 3 |sll_circular_create_#in~len|) (= .cse14 .cse15) .cse4 (<= |sll_circular_create_#in~len| .cse16) .cse6 .cse0 .cse3 .cse5 (= (select (select .cse17 .cse18) .cse19) 0) .cse7 (not (= sll_circular_create_~head~0.base .cse18)) .cse8 .cse9 .cse10 (= (select (select .cse11 .cse18) .cse19) sll_circular_create_~last~0.base))))) (and .cse2 (<= (+ .cse12 1) |#StackHeapBarrier|) .cse4 (= |sll_circular_create_#in~len| (+ sll_circular_create_~len 1)) .cse6 .cse0 (= (select .cse21 sll_circular_create_~head~0.offset) sll_circular_create_~last~0.base) .cse3 .cse5 .cse7 .cse8 (not .cse22) .cse9 .cse10) (let ((.cse23 (@diff |old(#memory_$Pointer$.base)| |#memory_$Pointer$.base|)) (.cse24 (@diff |old(#memory_$Pointer$.offset)| |#memory_$Pointer$.offset|))) (and (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| .cse23 (select |#memory_$Pointer$.base| .cse23))) .cse4 (or (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (<= (+ .cse24 1) |#StackHeapBarrier|)) (= sll_circular_create_~head~0.offset sll_circular_create_~last~0.offset) (or (<= (+ .cse23 1) |#StackHeapBarrier|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) .cse22 .cse0 (= .cse15 sll_circular_create_~data) .cse3 (= |#memory_$Pointer$.offset| (store |old(#memory_$Pointer$.offset)| .cse24 (select |#memory_$Pointer$.offset| .cse24))) (= |sll_circular_create_#in~len| sll_circular_create_~len) (= (select |#valid| sll_circular_create_~last~0.base) 1) (let ((.cse25 (select (select |old(#memory_$Pointer$.base)| |sll_circular_insert_#in~head.base|) |sll_circular_insert_#in~head.offset|))) (or (<= (+ |sll_circular_insert_#in~head.base| 1) |#StackHeapBarrier|) (not (= (select (select |old(#memory_$Pointer$.offset)| |sll_circular_insert_#in~head.base|) |sll_circular_insert_#in~head.offset|) 0)) (= |sll_circular_insert_#in~head.base| .cse25) (not (= (select |old(#valid)| .cse25) 1)) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |sll_circular_insert_#in~head.base|) |sll_circular_insert_#in~head.offset|)) 4) (select (select |old(#memory_int)| .cse25) 4)))))))))) [2020-10-29 09:31:29,526 INFO L274 CegarLoopResult]: For program point L584-1(line 584) no Hoare annotation was computed. [2020-10-29 09:31:29,526 INFO L274 CegarLoopResult]: For program point L586-3(lines 586 591) no Hoare annotation was computed. [2020-10-29 09:31:29,526 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 09:31:29,526 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-29 09:31:29,526 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 09:31:29,526 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 09:31:29,526 INFO L274 CegarLoopResult]: For program point L638(lines 638 640) no Hoare annotation was computed. [2020-10-29 09:31:29,527 INFO L270 CegarLoopResult]: At program point L634(line 634) the Hoare annotation is: (let ((.cse2 (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (let ((.cse5 (select |#memory_$Pointer$.base| .cse2)) (.cse0 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))) (let ((.cse3 (select .cse5 .cse0)) (.cse4 (select (select |#memory_int| .cse2) 4)) (.cse1 (select |#memory_$Pointer$.offset| .cse2))) (and (<= main_~len~0 2) (= .cse0 0) (= (select .cse1 0) 0) (= .cse2 (select (select |#memory_$Pointer$.base| .cse3) (select .cse1 .cse0))) (not (= .cse3 .cse2)) (= .cse4 main_~data~0) (= (select |#valid| .cse2) 1) (<= 1 main_~mid_index~0) (not (= |main_~#s~0.base| .cse3)) (= (div main_~len~0 2) 1) (= |main_~#s~0.offset| 0) (= (select |#valid| .cse3) 1) (not (= .cse2 0)) (<= (+ |#StackHeapBarrier| 1) |main_~#s~0.base|) (= .cse4 (select (select |#memory_int| (select .cse5 0)) 4)) (= .cse0 (select (select |#memory_$Pointer$.offset| (select .cse5 |main_~#s~0.offset|)) (select .cse1 |main_~#s~0.offset|))) (<= main_~mid_index~0 1))))) [2020-10-29 09:31:29,527 INFO L274 CegarLoopResult]: For program point L634-1(line 634) no Hoare annotation was computed. [2020-10-29 09:31:29,527 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 628 663) no Hoare annotation was computed. [2020-10-29 09:31:29,527 INFO L270 CegarLoopResult]: At program point L659(line 659) the Hoare annotation is: (and (<= 2 main_~len~0) (<= 1 main_~mid_index~0)) [2020-10-29 09:31:29,527 INFO L274 CegarLoopResult]: For program point L659-1(line 659) no Hoare annotation was computed. [2020-10-29 09:31:29,527 INFO L270 CegarLoopResult]: At program point L631(line 631) the Hoare annotation is: (let ((.cse0 (@diff |old(#memory_$Pointer$.base)| |#memory_$Pointer$.base|)) (.cse1 (@diff |old(#memory_$Pointer$.offset)| |#memory_$Pointer$.offset|))) (and (or (<= (+ .cse0 1) |#StackHeapBarrier|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| .cse0 (select |#memory_$Pointer$.base| .cse0))) (<= main_~len~0 2) (= (div main_~len~0 2) 1) (= |#memory_$Pointer$.offset| (store |old(#memory_$Pointer$.offset)| .cse1 (select |#memory_$Pointer$.offset| .cse1))) (= |main_~#s~0.offset| 0) (<= (+ |#StackHeapBarrier| 1) |main_~#s~0.base|) (or (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (<= (+ .cse1 1) |#StackHeapBarrier|)) (let ((.cse2 (select (select |old(#memory_$Pointer$.base)| |sll_circular_insert_#in~head.base|) |sll_circular_insert_#in~head.offset|))) (or (<= (+ |sll_circular_insert_#in~head.base| 1) |#StackHeapBarrier|) (not (= (select (select |old(#memory_$Pointer$.offset)| |sll_circular_insert_#in~head.base|) |sll_circular_insert_#in~head.offset|) 0)) (= |sll_circular_insert_#in~head.base| .cse2) (not (= (select |old(#valid)| .cse2) 1)) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |sll_circular_insert_#in~head.base|) |sll_circular_insert_#in~head.offset|)) 4) (select (select |old(#memory_int)| .cse2) 4)))))) [2020-10-29 09:31:29,527 INFO L274 CegarLoopResult]: For program point L631-1(line 631) no Hoare annotation was computed. [2020-10-29 09:31:29,527 INFO L274 CegarLoopResult]: For program point L644(lines 644 646) no Hoare annotation was computed. [2020-10-29 09:31:29,528 INFO L274 CegarLoopResult]: For program point L661(line 661) no Hoare annotation was computed. [2020-10-29 09:31:29,528 INFO L270 CegarLoopResult]: At program point L657(lines 628 663) the Hoare annotation is: false [2020-10-29 09:31:29,528 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 628 663) no Hoare annotation was computed. [2020-10-29 09:31:29,528 INFO L274 CegarLoopResult]: For program point L649-1(lines 649 655) no Hoare annotation was computed. [2020-10-29 09:31:29,528 INFO L274 CegarLoopResult]: For program point L649-2(lines 649 655) no Hoare annotation was computed. [2020-10-29 09:31:29,528 INFO L270 CegarLoopResult]: At program point L649-4(lines 649 655) the Hoare annotation is: (let ((.cse6 (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (.cse8 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|))) (let ((.cse23 (select (select |#memory_$Pointer$.base| .cse6) .cse8)) (.cse24 (select (select |#memory_$Pointer$.offset| .cse6) .cse8))) (let ((.cse21 (select (select |#memory_$Pointer$.base| .cse23) .cse24)) (.cse22 (select (select |#memory_$Pointer$.offset| .cse23) .cse24))) (let ((.cse0 (= .cse24 0)) (.cse1 (= 0 .cse22)) (.cse2 (<= main_~count~0 main_~len~0)) (.cse3 (= (select (select |#memory_int| .cse6) 4) (select (select |#memory_int| .cse21) 4))) (.cse4 (<= main_~len~0 2)) (.cse7 (= (select (select |#memory_int| .cse23) 4) main_~uneq~0)) (.cse10 (= .cse8 0)) (.cse11 (= main_~ptr~0.offset 0)) (.cse12 (<= main_~len~0 main_~count~0)) (.cse13 (= .cse8 (select (select |#memory_$Pointer$.offset| main_~ptr~0.base) main_~ptr~0.offset))) (.cse5 (select (select |#memory_$Pointer$.base| .cse21) .cse22)) (.cse9 (select (select |#memory_$Pointer$.offset| .cse21) .cse22)) (.cse14 (<= 1 main_~mid_index~0)) (.cse15 (= (div main_~len~0 2) 1)) (.cse16 (= |main_~#s~0.offset| 0)) (.cse17 (= .cse6 (select (select |#memory_$Pointer$.base| main_~ptr~0.base) main_~ptr~0.offset))) (.cse18 (<= (+ |#StackHeapBarrier| 1) |main_~#s~0.base|)) (.cse19 (= main_~data~0 (select (select |#memory_int| main_~ptr~0.base) (+ main_~ptr~0.offset 4)))) (.cse20 (<= main_~mid_index~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= .cse5 .cse6) .cse7 (= .cse8 .cse9) .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20) (and .cse0 .cse1 .cse2 .cse3 (= .cse6 (select (select |#memory_$Pointer$.base| .cse5) .cse9)) .cse4 .cse7 .cse10 .cse11 .cse12 .cse13 (= .cse8 (select (select |#memory_$Pointer$.offset| .cse5) .cse9)) .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20)))))) [2020-10-29 09:31:29,529 INFO L274 CegarLoopResult]: For program point L649-5(lines 628 663) no Hoare annotation was computed. [2020-10-29 09:31:29,529 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 628 663) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-29 09:31:29,529 INFO L274 CegarLoopResult]: For program point L637-1(lines 637 643) no Hoare annotation was computed. [2020-10-29 09:31:29,529 INFO L274 CegarLoopResult]: For program point L637-2(lines 637 643) no Hoare annotation was computed. [2020-10-29 09:31:29,529 INFO L270 CegarLoopResult]: At program point L637-4(lines 637 643) the Hoare annotation is: (let ((.cse6 (select (select |#memory_$Pointer$.base| main_~ptr~0.base) main_~ptr~0.offset)) (.cse0 (select (select |#memory_$Pointer$.offset| main_~ptr~0.base) main_~ptr~0.offset))) (let ((.cse3 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (.cse5 (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|)) (.cse1 (select (select |#memory_$Pointer$.base| .cse6) .cse0)) (.cse2 (select (select |#memory_int| main_~ptr~0.base) (+ main_~ptr~0.offset 4))) (.cse4 (select (select |#memory_$Pointer$.offset| .cse6) .cse0))) (and (= main_~mid_index~0 1) (= .cse0 0) (= (select (select |#memory_int| .cse1) 4) .cse2) (= .cse3 0) (= .cse3 (select (select |#memory_$Pointer$.offset| .cse1) .cse4)) (<= main_~len~0 (+ main_~count~0 2)) (= main_~ptr~0.base .cse5) (= |main_~#s~0.offset| 0) (= (div main_~len~0 2) 1) (= main_~uneq~0 (select (select |#memory_int| .cse6) 4)) (= .cse3 main_~ptr~0.offset) (= .cse5 (select (select |#memory_$Pointer$.base| .cse1) .cse4)) (<= (+ |#StackHeapBarrier| 1) |main_~#s~0.base|) (= main_~data~0 .cse2) (= main_~count~0 0) (= 0 .cse4)))) [2020-10-29 09:31:29,529 INFO L274 CegarLoopResult]: For program point L637-5(lines 637 643) no Hoare annotation was computed. [2020-10-29 09:31:29,529 INFO L274 CegarLoopResult]: For program point L650(lines 650 652) no Hoare annotation was computed. [2020-10-29 09:31:29,530 INFO L270 CegarLoopResult]: At program point sll_circular_destroyENTRY(lines 595 605) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-10-29 09:31:29,530 INFO L274 CegarLoopResult]: For program point L596(lines 596 604) no Hoare annotation was computed. [2020-10-29 09:31:29,530 INFO L277 CegarLoopResult]: At program point L598-2(lines 598 602) the Hoare annotation is: true [2020-10-29 09:31:29,530 INFO L274 CegarLoopResult]: For program point L598-3(lines 598 602) no Hoare annotation was computed. [2020-10-29 09:31:29,530 INFO L274 CegarLoopResult]: For program point L596-2(lines 595 605) no Hoare annotation was computed. [2020-10-29 09:31:29,530 INFO L274 CegarLoopResult]: For program point sll_circular_destroyEXIT(lines 595 605) no Hoare annotation was computed. [2020-10-29 09:31:29,530 INFO L277 CegarLoopResult]: At program point L577(line 577) the Hoare annotation is: true [2020-10-29 09:31:29,530 INFO L274 CegarLoopResult]: For program point L576(lines 576 578) no Hoare annotation was computed. [2020-10-29 09:31:29,530 INFO L274 CegarLoopResult]: For program point L576-1(lines 576 578) no Hoare annotation was computed. [2020-10-29 09:31:29,531 INFO L270 CegarLoopResult]: At program point node_createENTRY(lines 574 582) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-29 09:31:29,531 INFO L274 CegarLoopResult]: For program point node_createFINAL(lines 574 582) no Hoare annotation was computed. [2020-10-29 09:31:29,531 INFO L274 CegarLoopResult]: For program point node_createEXIT(lines 574 582) no Hoare annotation was computed. [2020-10-29 09:31:29,540 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (@diff (Array Int (Array Int Int)) (Array Int (Array Int Int)) Int) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.getBinaryOperator(Term2Expression.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:246) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-29 09:31:29,545 INFO L168 Benchmark]: Toolchain (without parser) took 149182.14 ms. Allocated memory was 155.2 MB in the beginning and 978.3 MB in the end (delta: 823.1 MB). Free memory was 129.6 MB in the beginning and 704.6 MB in the end (delta: -575.0 MB). Peak memory consumption was 590.4 MB. Max. memory is 8.0 GB. [2020-10-29 09:31:29,545 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory is still 129.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:31:29,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 562.20 ms. Allocated memory is still 155.2 MB. Free memory was 129.1 MB in the beginning and 105.6 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:31:29,546 INFO L168 Benchmark]: Boogie Preprocessor took 74.03 ms. Allocated memory is still 155.2 MB. Free memory was 105.6 MB in the beginning and 102.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:31:29,547 INFO L168 Benchmark]: RCFGBuilder took 936.06 ms. Allocated memory is still 155.2 MB. Free memory was 102.5 MB in the beginning and 87.7 MB in the end (delta: 14.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. [2020-10-29 09:31:29,547 INFO L168 Benchmark]: TraceAbstraction took 147598.75 ms. Allocated memory was 155.2 MB in the beginning and 978.3 MB in the end (delta: 823.1 MB). Free memory was 87.7 MB in the beginning and 704.6 MB in the end (delta: -616.9 MB). Peak memory consumption was 547.0 MB. Max. memory is 8.0 GB. [2020-10-29 09:31:29,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory is still 129.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 562.20 ms. Allocated memory is still 155.2 MB. Free memory was 129.1 MB in the beginning and 105.6 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 74.03 ms. Allocated memory is still 155.2 MB. Free memory was 105.6 MB in the beginning and 102.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 936.06 ms. Allocated memory is still 155.2 MB. Free memory was 102.5 MB in the beginning and 87.7 MB in the end (delta: 14.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 147598.75 ms. Allocated memory was 155.2 MB in the beginning and 978.3 MB in the end (delta: 823.1 MB). Free memory was 87.7 MB in the beginning and 704.6 MB in the end (delta: -616.9 MB). Peak memory consumption was 547.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (@diff (Array Int (Array Int Int)) (Array Int (Array Int Int)) Int) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (@diff (Array Int (Array Int Int)) (Array Int (Array Int Int)) Int): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.getBinaryOperator(Term2Expression.java:553) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...