/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/list-simple/dll2c_prepend_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:45:01,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:45:01,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:45:01,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:45:01,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:45:01,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:45:01,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:45:01,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:45:01,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:45:01,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:45:01,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:45:01,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:45:01,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:45:01,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:45:01,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:45:01,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:45:01,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:45:01,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:45:01,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:45:01,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:45:01,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:45:01,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:45:01,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:45:01,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:45:01,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:45:01,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:45:01,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:45:01,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:45:01,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:45:01,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:45:01,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:45:01,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:45:01,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:45:01,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:45:01,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:45:01,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:45:01,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:45:01,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:45:01,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:45:01,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:45:01,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:45:01,934 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 14:45:01,993 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:45:01,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:45:01,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:45:01,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:45:01,996 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:45:01,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:45:01,996 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:45:01,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:45:01,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:45:01,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:45:01,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:45:01,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:45:01,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:45:01,998 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:45:01,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:45:01,998 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:45:01,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:45:01,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:45:01,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:45:01,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:45:01,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:45:01,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:45:02,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:45:02,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:45:02,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:45:02,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:45:02,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:45:02,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:45:02,001 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:45:02,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:45:02,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:45:02,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:45:02,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:45:02,522 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:45:02,523 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:45:02,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_prepend_equal.i [2020-10-28 14:45:02,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3476924f/d5718289d7db4a269663e6cd5fa78939/FLAG185a019fa [2020-10-28 14:45:03,315 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:45:03,316 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-simple/dll2c_prepend_equal.i [2020-10-28 14:45:03,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3476924f/d5718289d7db4a269663e6cd5fa78939/FLAG185a019fa [2020-10-28 14:45:03,602 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3476924f/d5718289d7db4a269663e6cd5fa78939 [2020-10-28 14:45:03,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:45:03,611 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:45:03,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:45:03,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:45:03,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:45:03,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:45:03" (1/1) ... [2020-10-28 14:45:03,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6295a7e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:45:03, skipping insertion in model container [2020-10-28 14:45:03,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:45:03" (1/1) ... [2020-10-28 14:45:03,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:45:03,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:45:04,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:45:04,070 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:45:04,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:45:04,187 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:45:04,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:45:04 WrapperNode [2020-10-28 14:45:04,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:45:04,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:45:04,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:45:04,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:45:04,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:45:04" (1/1) ... [2020-10-28 14:45:04,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:45:04" (1/1) ... [2020-10-28 14:45:04,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:45:04" (1/1) ... [2020-10-28 14:45:04,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:45:04" (1/1) ... [2020-10-28 14:45:04,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:45:04" (1/1) ... [2020-10-28 14:45:04,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:45:04" (1/1) ... [2020-10-28 14:45:04,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:45:04" (1/1) ... [2020-10-28 14:45:04,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:45:04,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:45:04,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:45:04,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:45:04,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:45:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:45:04,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:45:04,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:45:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:45:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-28 14:45:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-28 14:45:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-10-28 14:45:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-10-28 14:45:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2020-10-28 14:45:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2020-10-28 14:45:04,373 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_prepend [2020-10-28 14:45:04,373 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:45:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:45:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:45:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 14:45:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 14:45:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:45:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:45:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-28 14:45:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-28 14:45:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-28 14:45:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-28 14:45:04,375 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-28 14:45:04,375 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-28 14:45:04,375 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-28 14:45:04,375 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-28 14:45:04,375 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-28 14:45:04,375 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-28 14:45:04,376 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-28 14:45:04,376 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-28 14:45:04,376 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-28 14:45:04,376 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-28 14:45:04,376 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-28 14:45:04,376 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-28 14:45:04,376 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-28 14:45:04,376 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-28 14:45:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-28 14:45:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-28 14:45:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-28 14:45:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-28 14:45:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-28 14:45:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-28 14:45:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-28 14:45:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-28 14:45:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-28 14:45:04,378 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-28 14:45:04,378 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-28 14:45:04,378 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-28 14:45:04,378 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-28 14:45:04,378 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-28 14:45:04,378 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-28 14:45:04,378 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-28 14:45:04,378 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-28 14:45:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-28 14:45:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-28 14:45:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-28 14:45:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-28 14:45:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-28 14:45:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-28 14:45:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-28 14:45:04,380 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-28 14:45:04,380 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-28 14:45:04,380 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-28 14:45:04,380 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-28 14:45:04,380 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-28 14:45:04,380 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-28 14:45:04,381 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-28 14:45:04,381 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-28 14:45:04,381 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-28 14:45:04,381 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-28 14:45:04,381 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 14:45:04,381 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-28 14:45:04,381 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-28 14:45:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 14:45:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-28 14:45:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-28 14:45:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-28 14:45:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-28 14:45:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-28 14:45:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-28 14:45:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-28 14:45:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-28 14:45:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 14:45:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-28 14:45:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-28 14:45:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-28 14:45:04,384 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-28 14:45:04,384 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-28 14:45:04,384 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-28 14:45:04,384 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-28 14:45:04,384 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-28 14:45:04,384 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-28 14:45:04,384 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-28 14:45:04,385 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-28 14:45:04,385 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-28 14:45:04,385 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-28 14:45:04,385 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-28 14:45:04,385 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-28 14:45:04,385 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-28 14:45:04,385 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-28 14:45:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-28 14:45:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-28 14:45:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-28 14:45:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-28 14:45:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-28 14:45:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-28 14:45:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-28 14:45:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-28 14:45:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-28 14:45:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-28 14:45:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-28 14:45:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-28 14:45:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-28 14:45:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-28 14:45:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-28 14:45:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-28 14:45:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-28 14:45:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-28 14:45:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-28 14:45:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-28 14:45:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-28 14:45:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-28 14:45:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-10-28 14:45:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-10-28 14:45:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 14:45:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 14:45:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:45:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2020-10-28 14:45:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2020-10-28 14:45:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 14:45:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:45:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_prepend [2020-10-28 14:45:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:45:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 14:45:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:45:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:45:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:45:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:45:04,950 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-10-28 14:45:05,263 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:45:05,263 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-28 14:45:05,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:45:05 BoogieIcfgContainer [2020-10-28 14:45:05,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:45:05,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:45:05,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:45:05,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:45:05,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:45:03" (1/3) ... [2020-10-28 14:45:05,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70274766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:45:05, skipping insertion in model container [2020-10-28 14:45:05,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:45:04" (2/3) ... [2020-10-28 14:45:05,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70274766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:45:05, skipping insertion in model container [2020-10-28 14:45:05,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:45:05" (3/3) ... [2020-10-28 14:45:05,286 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2c_prepend_equal.i [2020-10-28 14:45:05,300 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:45:05,306 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:45:05,323 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:45:05,368 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:45:05,368 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:45:05,369 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:45:05,369 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:45:05,369 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:45:05,369 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:45:05,369 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:45:05,370 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:45:05,397 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2020-10-28 14:45:05,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-28 14:45:05,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:45:05,408 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:45:05,409 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:45:05,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:45:05,421 INFO L82 PathProgramCache]: Analyzing trace with hash 639176777, now seen corresponding path program 1 times [2020-10-28 14:45:05,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:45:05,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1599872456] [2020-10-28 14:45:05,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:45:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:05,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:05,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:06,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:06,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:10,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:10,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 14:45:10,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 14:45:10,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-28 14:45:10,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:10,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:10,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:45:10,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-28 14:45:10,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:45:10,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 14:45:10,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:45:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:10,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:10,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:10,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:45:10,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:10,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 14:45:10,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:10,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:45:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:45:10,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:45:10,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:45:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:10,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:10,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:10,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 14:45:10,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:10,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 14:45:10,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:10,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:10,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:45:10,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:10,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:45:10,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 14:45:10,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:45:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:10,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:10,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:10,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:45:10,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:10,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 14:45:10,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:10,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:10,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:45:10,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:10,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:45:10,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:45:10,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 14:45:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:10,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:10,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:10,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 14:45:10,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:10,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 14:45:10,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:10,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:10,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:45:10,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:10,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:45:10,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:10,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:45:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:10,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:10,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:10,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:45:10,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:10,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 14:45:10,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:10,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:10,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:45:10,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:10,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:45:10,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:45:11,006 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 14:45:11,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1599872456] [2020-10-28 14:45:11,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:45:11,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 14:45:11,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44698626] [2020-10-28 14:45:11,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 14:45:11,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:45:11,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 14:45:11,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 14:45:11,040 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 4 states. [2020-10-28 14:45:11,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:45:11,412 INFO L93 Difference]: Finished difference Result 104 states and 131 transitions. [2020-10-28 14:45:11,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 14:45:11,416 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-10-28 14:45:11,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:45:11,428 INFO L225 Difference]: With dead ends: 104 [2020-10-28 14:45:11,428 INFO L226 Difference]: Without dead ends: 41 [2020-10-28 14:45:11,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 14:45:11,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-28 14:45:11,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-28 14:45:11,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-28 14:45:11,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2020-10-28 14:45:11,491 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 38 [2020-10-28 14:45:11,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:45:11,493 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2020-10-28 14:45:11,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 14:45:11,493 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2020-10-28 14:45:11,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-28 14:45:11,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:45:11,496 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:45:11,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:45:11,497 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:45:11,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:45:11,497 INFO L82 PathProgramCache]: Analyzing trace with hash 625800618, now seen corresponding path program 1 times [2020-10-28 14:45:11,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:45:11,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140538879] [2020-10-28 14:45:11,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:45:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:11,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:11,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:11,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:12,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:16,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:16,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 14:45:16,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 14:45:16,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 14:45:16,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:16,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:16,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 14:45:16,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 14:45:16,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 14:45:16,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:16,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:45:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:16,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:16,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:16,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:45:16,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:16,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 14:45:16,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:16,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:16,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:45:16,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:16,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:45:16,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:16,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:45:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:16,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:16,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:16,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 14:45:16,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:16,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 14:45:16,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:16,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:16,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 14:45:16,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 14:45:16,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 14:45:16,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:45:16,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:45:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:16,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:16,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:16,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:45:16,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:16,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 14:45:16,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:16,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:16,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 14:45:16,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:16,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 14:45:16,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:45:16,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 14:45:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:16,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:16,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:16,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 14:45:16,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:16,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 14:45:16,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:16,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:16,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:45:16,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 14:45:16,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:45:16,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:45:16,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:45:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:16,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:16,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:16,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:45:16,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:16,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 14:45:16,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:16,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:16,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:45:16,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:16,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:45:16,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:16,800 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 14:45:16,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140538879] [2020-10-28 14:45:16,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:45:16,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 14:45:16,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188789233] [2020-10-28 14:45:16,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 14:45:16,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:45:16,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 14:45:16,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-28 14:45:16,807 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand 7 states. [2020-10-28 14:45:17,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:45:17,165 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2020-10-28 14:45:17,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 14:45:17,166 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-10-28 14:45:17,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:45:17,167 INFO L225 Difference]: With dead ends: 72 [2020-10-28 14:45:17,168 INFO L226 Difference]: Without dead ends: 46 [2020-10-28 14:45:17,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-28 14:45:17,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-28 14:45:17,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-10-28 14:45:17,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-28 14:45:17,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2020-10-28 14:45:17,181 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 38 [2020-10-28 14:45:17,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:45:17,181 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2020-10-28 14:45:17,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 14:45:17,181 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2020-10-28 14:45:17,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-28 14:45:17,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:45:17,184 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] [2020-10-28 14:45:17,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:45:17,185 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:45:17,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:45:17,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1119452514, now seen corresponding path program 1 times [2020-10-28 14:45:17,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:45:17,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [121513796] [2020-10-28 14:45:17,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:45:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:17,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:17,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:18,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:22,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:22,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-28 14:45:22,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 14:45:22,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-28 14:45:22,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:22,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:22,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 14:45:22,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 14:45:22,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 14:45:22,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:45:22,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:45:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:22,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:22,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:22,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:45:22,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:22,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 14:45:22,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:22,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:22,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:45:22,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:22,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:45:22,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:22,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:45:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:22,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:22,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:22,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 14:45:22,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:22,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 14:45:22,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:22,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:22,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 14:45:22,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:22,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-28 14:45:22,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:22,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:45:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:22,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:22,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:22,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:45:22,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:22,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 14:45:22,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:22,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:22,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:45:22,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:22,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:45:22,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:22,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 14:45:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:22,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:22,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:22,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:45:22,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:22,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 14:45:22,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:22,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:22,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:45:22,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:22,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:45:22,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:22,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 14:45:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:22,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:22,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:22,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 14:45:22,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:22,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-28 14:45:22,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:22,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:22,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 14:45:22,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:22,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 14:45:22,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:22,898 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2020-10-28 14:45:22,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:45:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:22,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:23,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:23,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:45:23,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:23,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-28 14:45:23,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:23,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:23,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 14:45:23,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:23,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 14:45:23,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:23,100 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 14:45:23,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [121513796] [2020-10-28 14:45:23,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:45:23,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-28 14:45:23,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896649409] [2020-10-28 14:45:23,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 14:45:23,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:45:23,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 14:45:23,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-28 14:45:23,104 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 14 states. [2020-10-28 14:45:23,700 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-10-28 14:45:24,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:45:24,236 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2020-10-28 14:45:24,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 14:45:24,237 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 48 [2020-10-28 14:45:24,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:45:24,239 INFO L225 Difference]: With dead ends: 57 [2020-10-28 14:45:24,239 INFO L226 Difference]: Without dead ends: 53 [2020-10-28 14:45:24,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2020-10-28 14:45:24,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-28 14:45:24,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2020-10-28 14:45:24,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-28 14:45:24,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2020-10-28 14:45:24,250 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 48 [2020-10-28 14:45:24,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:45:24,250 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2020-10-28 14:45:24,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 14:45:24,251 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2020-10-28 14:45:24,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-28 14:45:24,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:45:24,252 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] [2020-10-28 14:45:24,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 14:45:24,253 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:45:24,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:45:24,253 INFO L82 PathProgramCache]: Analyzing trace with hash -439394144, now seen corresponding path program 1 times [2020-10-28 14:45:24,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:45:24,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730358797] [2020-10-28 14:45:24,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:45:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:24,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:27,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:27,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-28 14:45:27,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:27,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3011 [2020-10-28 14:45:27,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:27,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-28 14:45:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 14:45:27,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 14:45:27,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:45:27,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:45:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:27,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:27,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:27,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:45:27,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:27,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 14:45:27,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:27,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:27,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:45:27,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:27,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:45:27,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:45:27,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:45:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:27,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:27,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:27,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 14:45:27,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:27,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-28 14:45:27,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:27,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:27,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 14:45:27,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:27,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-28 14:45:27,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:27,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:45:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:28,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:28,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:28,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:45:28,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:28,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 14:45:28,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:28,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:28,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 14:45:28,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:28,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 14:45:28,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 14:45:28,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 14:45:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:28,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:28,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:28,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:45:28,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:28,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 14:45:28,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:28,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:28,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 14:45:28,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:28,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 14:45:28,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:45:28,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 14:45:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:28,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:28,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:28,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 14:45:28,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:28,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 513 [2020-10-28 14:45:28,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:28,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:28,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 14:45:28,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:45:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 14:45:28,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:45:29,106 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2020-10-28 14:45:29,363 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2020-10-28 14:45:29,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:45:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:29,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:29,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:29,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:45:29,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:29,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-28 14:45:29,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:29,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:29,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 14:45:29,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:45:29,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 14:45:29,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:29,823 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-28 14:45:29,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730358797] [2020-10-28 14:45:29,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 14:45:29,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-28 14:45:29,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744072684] [2020-10-28 14:45:29,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-28 14:45:29,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:45:29,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-28 14:45:29,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2020-10-28 14:45:29,826 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand 26 states. [2020-10-28 14:45:31,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:45:31,561 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2020-10-28 14:45:31,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-28 14:45:31,561 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 48 [2020-10-28 14:45:31,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:45:31,565 INFO L225 Difference]: With dead ends: 54 [2020-10-28 14:45:31,565 INFO L226 Difference]: Without dead ends: 50 [2020-10-28 14:45:31,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2020-10-28 14:45:31,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-28 14:45:31,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2020-10-28 14:45:31,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-28 14:45:31,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2020-10-28 14:45:31,576 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 48 [2020-10-28 14:45:31,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:45:31,577 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2020-10-28 14:45:31,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-28 14:45:31,577 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2020-10-28 14:45:31,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-28 14:45:31,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:45:31,582 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] [2020-10-28 14:45:31,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 14:45:31,582 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:45:31,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:45:31,583 INFO L82 PathProgramCache]: Analyzing trace with hash 733227689, now seen corresponding path program 1 times [2020-10-28 14:45:31,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:45:31,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804170341] [2020-10-28 14:45:31,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:45:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:31,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:31,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:33,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:36,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:36,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-28 14:45:36,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 14:45:36,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4934 [2020-10-28 14:45:36,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:36,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:36,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 14:45:36,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 14:45:36,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-28 14:45:36,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:36,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:45:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:36,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:36,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:36,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:45:36,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:36,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 14:45:36,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:36,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:36,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:45:36,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:36,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:45:36,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:36,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:45:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:36,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:37,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:37,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 14:45:37,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:37,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-28 14:45:37,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:37,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:37,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 14:45:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-28 14:45:37,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:37,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:45:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:37,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:37,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:37,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:45:37,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:37,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 14:45:37,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:37,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:37,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 14:45:37,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:37,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 14:45:37,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:45:37,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 14:45:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:37,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:37,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:37,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:45:37,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:37,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 14:45:37,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:37,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:37,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 14:45:37,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:45:37,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 14:45:37,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:37,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 14:45:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:37,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:37,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:38,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:38,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 14:45:38,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:45:38,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-28 14:45:38,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:38,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:38,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 14:45:38,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:45:38,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 14:45:38,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:38,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:45:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:38,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:38,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:38,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:45:38,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:38,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 14:45:38,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:38,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:38,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 14:45:38,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:45:38,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 14:45:38,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:38,506 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-28 14:45:38,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804170341] [2020-10-28 14:45:38,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 14:45:38,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-28 14:45:38,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255553809] [2020-10-28 14:45:38,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-28 14:45:38,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:45:38,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-28 14:45:38,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=694, Unknown=0, NotChecked=0, Total=756 [2020-10-28 14:45:38,510 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand 28 states. [2020-10-28 14:45:40,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:45:40,648 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions. [2020-10-28 14:45:40,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-28 14:45:40,649 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 51 [2020-10-28 14:45:40,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:45:40,650 INFO L225 Difference]: With dead ends: 69 [2020-10-28 14:45:40,650 INFO L226 Difference]: Without dead ends: 57 [2020-10-28 14:45:40,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=119, Invalid=1363, Unknown=0, NotChecked=0, Total=1482 [2020-10-28 14:45:40,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-28 14:45:40,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2020-10-28 14:45:40,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-28 14:45:40,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2020-10-28 14:45:40,665 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 51 [2020-10-28 14:45:40,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:45:40,665 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2020-10-28 14:45:40,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-28 14:45:40,666 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2020-10-28 14:45:40,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-28 14:45:40,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:45:40,668 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] [2020-10-28 14:45:40,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 14:45:40,668 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:45:40,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:45:40,669 INFO L82 PathProgramCache]: Analyzing trace with hash 991393127, now seen corresponding path program 1 times [2020-10-28 14:45:40,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:45:40,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048719290] [2020-10-28 14:45:40,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:45:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:40,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:42,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:45,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:45,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-28 14:45:45,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:45:45,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 14:45:45,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:45,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 14:45:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 14:45:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-28 14:45:45,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:46,056 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2020-10-28 14:45:46,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:45:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:46,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:46,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:46,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:45:46,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:46,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 14:45:46,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:46,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:46,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:45:46,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:46,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:45:46,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:46,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:45:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:46,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:46,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:46,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 14:45:46,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:46,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-28 14:45:46,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:46,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:46,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 14:45:46,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:46,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-28 14:45:46,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:46,892 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 26 [2020-10-28 14:45:47,113 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 42 [2020-10-28 14:45:47,463 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-10-28 14:45:47,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:45:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:47,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:47,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:47,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:45:47,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:47,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 14:45:47,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:47,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:47,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 14:45:47,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:45:47,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 14:45:47,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:47,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 14:45:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:47,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:47,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:47,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:45:47,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:47,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 14:45:47,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:47,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:47,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 14:45:47,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:45:47,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 14:45:47,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:45:47,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 14:45:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:45:48,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:45:48,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:45:48,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 14:45:48,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:45:48,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-10-28 14:45:48,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:45:48,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:45:48,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 14:45:48,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:45:48,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 14:45:48,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0