/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-sets/test_mutex_unlock_at_exit.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:15:14,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:15:14,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:15:14,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:15:14,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:15:14,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:15:14,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:15:14,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:15:14,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:15:14,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:15:14,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:15:14,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:15:14,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:15:14,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:15:14,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:15:14,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:15:14,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:15:14,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:15:14,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:15:14,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:15:14,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:15:14,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:15:14,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:15:14,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:15:14,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:15:14,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:15:14,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:15:14,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:15:14,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:15:14,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:15:14,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:15:14,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:15:14,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:15:14,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:15:14,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:15:14,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:15:14,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:15:14,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:15:14,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:15:14,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:15:14,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:15:14,510 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 01:15:14,571 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:15:14,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:15:14,573 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:15:14,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:15:14,573 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:15:14,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:15:14,574 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:15:14,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:15:14,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:15:14,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:15:14,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:15:14,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:15:14,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:15:14,576 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:15:14,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:15:14,576 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:15:14,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:15:14,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:15:14,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:15:14,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:15:14,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:15:14,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:15:14,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:15:14,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:15:14,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:15:14,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:15:14,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:15:14,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:15:14,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:15:14,580 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:15:14,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:15:15,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:15:15,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:15:15,087 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:15:15,088 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:15:15,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_unlock_at_exit.i [2020-10-27 01:15:15,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d6bd362f/d202c7a92cae4d5f9a6eb8e67b9f1fe5/FLAGe12668013 [2020-10-27 01:15:15,944 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:15:15,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_unlock_at_exit.i [2020-10-27 01:15:15,974 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d6bd362f/d202c7a92cae4d5f9a6eb8e67b9f1fe5/FLAGe12668013 [2020-10-27 01:15:16,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d6bd362f/d202c7a92cae4d5f9a6eb8e67b9f1fe5 [2020-10-27 01:15:16,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:15:16,206 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:15:16,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:15:16,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:15:16,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:15:16,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:15:16" (1/1) ... [2020-10-27 01:15:16,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be6ea73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:16, skipping insertion in model container [2020-10-27 01:15:16,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:15:16" (1/1) ... [2020-10-27 01:15:16,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:15:16,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:15:16,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:15:16,666 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:15:16,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:15:16,840 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:15:16,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:16 WrapperNode [2020-10-27 01:15:16,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:15:16,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:15:16,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:15:16,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:15:16,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:16" (1/1) ... [2020-10-27 01:15:16,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:16" (1/1) ... [2020-10-27 01:15:16,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:16" (1/1) ... [2020-10-27 01:15:16,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:16" (1/1) ... [2020-10-27 01:15:16,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:16" (1/1) ... [2020-10-27 01:15:16,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:16" (1/1) ... [2020-10-27 01:15:16,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:16" (1/1) ... [2020-10-27 01:15:16,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:15:16,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:15:16,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:15:16,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:15:16,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:15:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:15:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:15:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-27 01:15:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-27 01:15:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:15:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 01:15:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 01:15:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-10-27 01:15:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-27 01:15:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-27 01:15:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-27 01:15:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-27 01:15:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-27 01:15:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-27 01:15:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-10-27 01:15:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-10-27 01:15:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-27 01:15:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-10-27 01:15:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-10-27 01:15:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-10-27 01:15:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 01:15:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-27 01:15:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-27 01:15:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 01:15:17,023 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-27 01:15:17,023 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:15:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-27 01:15:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-27 01:15:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-27 01:15:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-27 01:15:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-27 01:15:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-27 01:15:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-27 01:15:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-27 01:15:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-27 01:15:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-27 01:15:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-27 01:15:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-27 01:15:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-27 01:15:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-27 01:15:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-27 01:15:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-27 01:15:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-27 01:15:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-27 01:15:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-27 01:15:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-27 01:15:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-27 01:15:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-27 01:15:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-27 01:15:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-27 01:15:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-27 01:15:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-27 01:15:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-27 01:15:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-27 01:15:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-27 01:15:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-27 01:15:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-27 01:15:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-27 01:15:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-27 01:15:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-27 01:15:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-27 01:15:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-27 01:15:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-27 01:15:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-27 01:15:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-27 01:15:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-27 01:15:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-27 01:15:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-27 01:15:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-27 01:15:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-27 01:15:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-27 01:15:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-27 01:15:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-27 01:15:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-27 01:15:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-27 01:15:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-27 01:15:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-27 01:15:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-27 01:15:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 01:15:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 01:15:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-27 01:15:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 01:15:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-27 01:15:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-27 01:15:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-27 01:15:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-27 01:15:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:15:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-27 01:15:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-27 01:15:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 01:15:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-27 01:15:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-27 01:15:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-27 01:15:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-27 01:15:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-27 01:15:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-27 01:15:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-27 01:15:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-27 01:15:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-27 01:15:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-27 01:15:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-27 01:15:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-27 01:15:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-27 01:15:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-27 01:15:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-27 01:15:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-27 01:15:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-27 01:15:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-27 01:15:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-27 01:15:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-27 01:15:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-27 01:15:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-27 01:15:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-27 01:15:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-27 01:15:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-27 01:15:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-27 01:15:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-27 01:15:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-27 01:15:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-27 01:15:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-27 01:15:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-27 01:15:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-27 01:15:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-27 01:15:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-27 01:15:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-27 01:15:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-27 01:15:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-27 01:15:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-27 01:15:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:15:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 01:15:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 01:15:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:15:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:15:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 01:15:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 01:15:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 01:15:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 01:15:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-10-27 01:15:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-27 01:15:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 01:15:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-27 01:15:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-27 01:15:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-27 01:15:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 01:15:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-27 01:15:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-27 01:15:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-10-27 01:15:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-10-27 01:15:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-27 01:15:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-10-27 01:15:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-10-27 01:15:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-10-27 01:15:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:15:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 01:15:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-27 01:15:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-27 01:15:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 01:15:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-27 01:15:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:15:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:15:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:15:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 01:15:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:15:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:15:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:15:17,841 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:15:17,841 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-27 01:15:17,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:15:17 BoogieIcfgContainer [2020-10-27 01:15:17,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:15:17,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:15:17,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:15:17,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:15:17,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:15:16" (1/3) ... [2020-10-27 01:15:17,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb15f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:15:17, skipping insertion in model container [2020-10-27 01:15:17,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:16" (2/3) ... [2020-10-27 01:15:17,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb15f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:15:17, skipping insertion in model container [2020-10-27 01:15:17,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:15:17" (3/3) ... [2020-10-27 01:15:17,853 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_unlock_at_exit.i [2020-10-27 01:15:17,867 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:15:17,873 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:15:17,889 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:15:17,920 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:15:17,920 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:15:17,921 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:15:17,921 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:15:17,921 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:15:17,921 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:15:17,921 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:15:17,921 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:15:17,943 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-10-27 01:15:17,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-27 01:15:17,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:17,952 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:15:17,953 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:17,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:17,960 INFO L82 PathProgramCache]: Analyzing trace with hash 541408241, now seen corresponding path program 1 times [2020-10-27 01:15:17,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:17,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794043127] [2020-10-27 01:15:17,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:18,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:18,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:18,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:18,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:18,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:18,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-27 01:15:18,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:15:18,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 640 [2020-10-27 01:15:18,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:18,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:18,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 01:15:18,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:18,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 01:15:18,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:18,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:18,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:18,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:18,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:18,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 01:15:18,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:18,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:18,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:18,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:18,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:18,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:15:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:18,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:18,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:18,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 01:15:18,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:18,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:15:18,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:18,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:18,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:19,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 01:15:19,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:19,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 01:15:19,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:19,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:19,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:15:19,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:15:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:19,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:19,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:15:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:19,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:15:19,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 01:15:19,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:19,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 01:15:19,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:19,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:19,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:15:19,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:19,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:15:19,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:19,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:19,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 01:15:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:19,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:15:19,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 01:15:19,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:19,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:15:19,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:19,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,132 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-27 01:15:19,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794043127] [2020-10-27 01:15:19,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:15:19,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:15:19,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933299887] [2020-10-27 01:15:19,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:15:19,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:15:19,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:15:19,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:15:19,162 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 4 states. [2020-10-27 01:15:19,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:15:19,507 INFO L93 Difference]: Finished difference Result 220 states and 274 transitions. [2020-10-27 01:15:19,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:15:19,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-27 01:15:19,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:15:19,522 INFO L225 Difference]: With dead ends: 220 [2020-10-27 01:15:19,522 INFO L226 Difference]: Without dead ends: 110 [2020-10-27 01:15:19,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:15:19,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-27 01:15:19,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 97. [2020-10-27 01:15:19,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-27 01:15:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2020-10-27 01:15:19,597 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 44 [2020-10-27 01:15:19,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:15:19,597 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2020-10-27 01:15:19,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:15:19,598 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2020-10-27 01:15:19,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-27 01:15:19,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:19,600 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:15:19,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:15:19,601 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:19,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:19,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1320035111, now seen corresponding path program 1 times [2020-10-27 01:15:19,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:19,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930438564] [2020-10-27 01:15:19,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-27 01:15:19,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-27 01:15:19,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:19,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-27 01:15:19,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:15:19,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:19,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:15:19,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:19,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:15:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 01:15:19,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:15:19,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:19,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:19,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:19,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:19,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:15:19,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:19,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:19,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:19,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:19,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:15:19,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:19,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:19,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:19,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:15:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:19,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:15:19,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:19,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:19,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:19,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:19,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:15:19,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:19,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:19,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:19,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 01:15:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:19,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 01:15:19,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:19,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:19,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:15:19,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-27 01:15:20,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930438564] [2020-10-27 01:15:20,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:15:20,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 01:15:20,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968323981] [2020-10-27 01:15:20,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 01:15:20,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:15:20,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 01:15:20,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:15:20,004 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand 6 states. [2020-10-27 01:15:20,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:15:20,453 INFO L93 Difference]: Finished difference Result 118 states and 135 transitions. [2020-10-27 01:15:20,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 01:15:20,453 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-10-27 01:15:20,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:15:20,457 INFO L225 Difference]: With dead ends: 118 [2020-10-27 01:15:20,457 INFO L226 Difference]: Without dead ends: 114 [2020-10-27 01:15:20,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:15:20,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-27 01:15:20,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 101. [2020-10-27 01:15:20,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-27 01:15:20,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 114 transitions. [2020-10-27 01:15:20,478 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 114 transitions. Word has length 44 [2020-10-27 01:15:20,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:15:20,479 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 114 transitions. [2020-10-27 01:15:20,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 01:15:20,479 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 114 transitions. [2020-10-27 01:15:20,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-27 01:15:20,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:20,481 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:15:20,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:15:20,482 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:20,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:20,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1609644272, now seen corresponding path program 1 times [2020-10-27 01:15:20,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:20,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686839555] [2020-10-27 01:15:20,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:20,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:20,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:20,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-27 01:15:20,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:20,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 434 [2020-10-27 01:15:20,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:20,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 01:15:20,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 01:15:20,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 01:15:20,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:21,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:21,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:21,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:21,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:21,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:21,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 01:15:21,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:21,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:21,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:21,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 01:15:21,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:21,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:15:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:21,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:21,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:21,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 01:15:21,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:21,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:15:21,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:21,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:21,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:21,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 01:15:21,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:21,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:21,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:21,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:21,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:21,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:21,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 01:15:21,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:21,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:21,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:21,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 01:15:21,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:21,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:21,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:21,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:21,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:21,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:21,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:15:21,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:21,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:21,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:21,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:21,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:15:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:21,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:21,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:21,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:21,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:21,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 01:15:21,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:21,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:21,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:21,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 01:15:21,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:21,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:21,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:21,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:21,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:21,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:21,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:15:21,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:21,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:21,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:21,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:21,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:21,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 01:15:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:21,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:21,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:21,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:21,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:21,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 01:15:21,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:21,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:15:21,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 01:15:21,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:15:21,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:21,253 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-27 01:15:21,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686839555] [2020-10-27 01:15:21,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:15:21,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 01:15:21,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489231052] [2020-10-27 01:15:21,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 01:15:21,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:15:21,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 01:15:21,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:15:21,257 INFO L87 Difference]: Start difference. First operand 101 states and 114 transitions. Second operand 7 states. [2020-10-27 01:15:22,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:15:22,770 INFO L93 Difference]: Finished difference Result 286 states and 343 transitions. [2020-10-27 01:15:22,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 01:15:22,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2020-10-27 01:15:22,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:15:22,775 INFO L225 Difference]: With dead ends: 286 [2020-10-27 01:15:22,775 INFO L226 Difference]: Without dead ends: 199 [2020-10-27 01:15:22,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-10-27 01:15:22,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-10-27 01:15:22,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 161. [2020-10-27 01:15:22,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-10-27 01:15:22,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 190 transitions. [2020-10-27 01:15:22,812 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 190 transitions. Word has length 44 [2020-10-27 01:15:22,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:15:22,813 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 190 transitions. [2020-10-27 01:15:22,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 01:15:22,813 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 190 transitions. [2020-10-27 01:15:22,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-27 01:15:22,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:22,817 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:15:22,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 01:15:22,817 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:22,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:22,818 INFO L82 PathProgramCache]: Analyzing trace with hash -862771547, now seen corresponding path program 1 times [2020-10-27 01:15:22,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:22,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1914527797] [2020-10-27 01:15:22,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:22,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:22,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:23,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 01:15:23,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:15:23,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 506 [2020-10-27 01:15:23,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:23,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:23,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-27 01:15:23,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:15:23,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:23,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:23,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:23,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:23,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:23,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:15:23,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:23,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:23,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:23,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:23,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:23,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:15:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:23,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:23,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 01:15:23,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:23,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:15:23,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:23,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:23,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:23,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:23,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:23,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:23,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:23,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:23,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:23,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:15:23,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:23,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:23,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:23,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:23,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:23,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:23,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:23,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:23,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:23,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:15:23,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:23,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:23,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:23,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:23,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:23,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:15:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:23,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:23,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:23,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:23,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:15:23,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:23,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:23,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:23,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:23,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:23,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:23,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:15:23,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:23,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:23,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:23,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:23,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:23,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 01:15:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:23,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:23,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 01:15:23,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:23,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 01:15:23,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 01:15:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:15:23,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:23,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:23,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:23,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:23,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:23,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:15:23,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:23,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:23,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:23,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:23,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:23,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:23,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:23,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 01:15:23,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:23,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 01:15:23,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:23,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:23,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 01:15:23,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:15:23,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:23,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:23,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:23,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:23,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:23,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 01:15:23,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:15:23,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:23,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 01:15:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:23,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:23,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 01:15:23,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:15:23,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-27 01:15:23,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:23,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:23,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 01:15:23,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:15:23,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:23,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:23,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:23,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:23,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:23,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:15:23,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:23,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:23,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:23,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:23,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:23,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:23,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:23,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 01:15:23,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:23,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 01:15:23,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:23,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 01:15:23,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:15:23,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:23,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:23,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:23,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:23,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:23,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 01:15:23,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:23,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:23,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:23,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:15:23,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:23,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 01:15:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:23,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:23,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:23,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:23,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:23,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:15:23,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:23,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:23,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 01:15:23,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:23,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:23,876 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-27 01:15:23,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1914527797] [2020-10-27 01:15:23,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:15:23,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 01:15:23,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679839953] [2020-10-27 01:15:23,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 01:15:23,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:15:23,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 01:15:23,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:15:23,881 INFO L87 Difference]: Start difference. First operand 161 states and 190 transitions. Second operand 7 states. [2020-10-27 01:15:24,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:15:24,539 INFO L93 Difference]: Finished difference Result 293 states and 345 transitions. [2020-10-27 01:15:24,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 01:15:24,540 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-10-27 01:15:24,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:15:24,545 INFO L225 Difference]: With dead ends: 293 [2020-10-27 01:15:24,546 INFO L226 Difference]: Without dead ends: 169 [2020-10-27 01:15:24,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-27 01:15:24,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-27 01:15:24,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 167. [2020-10-27 01:15:24,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-27 01:15:24,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 196 transitions. [2020-10-27 01:15:24,596 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 196 transitions. Word has length 92 [2020-10-27 01:15:24,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:15:24,596 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 196 transitions. [2020-10-27 01:15:24,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 01:15:24,597 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 196 transitions. [2020-10-27 01:15:24,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-27 01:15:24,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:24,599 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:15:24,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 01:15:24,600 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:24,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:24,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1946309641, now seen corresponding path program 1 times [2020-10-27 01:15:24,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:24,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846399586] [2020-10-27 01:15:24,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:24,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:24,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:24,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:25,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:29,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:29,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 01:15:29,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:15:29,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 01:15:29,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:29,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 01:15:29,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 01:15:29,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-27 01:15:29,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:29,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:29,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:29,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:29,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:29,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:29,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 01:15:29,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:29,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:29,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:29,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 01:15:29,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:29,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:15:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:29,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:29,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:29,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 01:15:29,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:29,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:15:29,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:29,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 01:15:29,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:29,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:29,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:29,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:29,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:29,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:29,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 01:15:29,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:29,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:29,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:29,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 01:15:29,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:29,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:29,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:29,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:29,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:29,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:29,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:15:29,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:29,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:29,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:29,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:29,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:29,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:15:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:29,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:29,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:29,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:29,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:29,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 01:15:29,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:29,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:29,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:29,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 01:15:29,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:29,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:29,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:29,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:29,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:29,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:29,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:15:29,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:29,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:29,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:29,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:29,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:29,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 01:15:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:29,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:29,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:30,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:30,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:30,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:30,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 01:15:30,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:15:30,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 773 [2020-10-27 01:15:30,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:30,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:15:30,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:15:30,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 01:15:30,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:30,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:30,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:30,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:30,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:30,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:30,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:15:30,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:30,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:30,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:30,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:15:30,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:30,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:30,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:30,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:30,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 01:15:30,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:30,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 01:15:30,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:30,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:15:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:15:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 01:15:30,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:30,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:30,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:30,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:30,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:30,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:30,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:15:30,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:30,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:30,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:30,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:15:30,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:30,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 01:15:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:30,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:30,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:31,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:31,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 01:15:31,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:15:31,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-27 01:15:31,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:31,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 01:15:31,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:15:31,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 01:15:31,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:31,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:31,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:31,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:31,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:31,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:31,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:15:31,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:15:31,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:31,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:31,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:31,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:31,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 01:15:31,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:31,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-27 01:15:31,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:31,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 01:15:31,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:15:31,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 01:15:31,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:31,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:31,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:31,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:31,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:31,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:31,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 01:15:31,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:31,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:15:31,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:31,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 01:15:31,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:31,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 01:15:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:31,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:31,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:31,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:31,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:31,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:15:31,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:31,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:31,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 01:15:31,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:31,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:31,386 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-10-27 01:15:31,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846399586] [2020-10-27 01:15:31,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:15:31,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 01:15:31,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712671940] [2020-10-27 01:15:31,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 01:15:31,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:15:31,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 01:15:31,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-27 01:15:31,390 INFO L87 Difference]: Start difference. First operand 167 states and 196 transitions. Second operand 12 states. [2020-10-27 01:15:34,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:15:34,836 INFO L93 Difference]: Finished difference Result 404 states and 478 transitions. [2020-10-27 01:15:34,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-27 01:15:34,837 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 92 [2020-10-27 01:15:34,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:15:34,842 INFO L225 Difference]: With dead ends: 404 [2020-10-27 01:15:34,843 INFO L226 Difference]: Without dead ends: 231 [2020-10-27 01:15:34,845 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=276, Invalid=1056, Unknown=0, NotChecked=0, Total=1332 [2020-10-27 01:15:34,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-10-27 01:15:34,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 173. [2020-10-27 01:15:34,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-10-27 01:15:34,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 197 transitions. [2020-10-27 01:15:34,879 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 197 transitions. Word has length 92 [2020-10-27 01:15:34,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:15:34,880 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 197 transitions. [2020-10-27 01:15:34,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 01:15:34,880 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 197 transitions. [2020-10-27 01:15:34,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 01:15:34,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:34,885 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:15:34,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 01:15:34,886 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:34,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:34,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1475641955, now seen corresponding path program 1 times [2020-10-27 01:15:34,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:34,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1515121647] [2020-10-27 01:15:34,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:34,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:35,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:36,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:36,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:39,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:39,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-27 01:15:39,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:15:39,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 01:15:39,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:39,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 01:15:39,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 01:15:39,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-27 01:15:39,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:40,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:40,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:40,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:40,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:40,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:40,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 01:15:40,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:40,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:40,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:40,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 01:15:40,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:40,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:15:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:40,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:40,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:40,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 01:15:40,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:40,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:15:40,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:40,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:40,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:40,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 01:15:40,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:40,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:40,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:40,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:40,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:40,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:40,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 01:15:40,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:40,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:15:40,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:40,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 01:15:40,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:40,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:40,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:40,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:40,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:40,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:40,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:15:40,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:40,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:40,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:40,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:15:40,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:40,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:15:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:40,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:40,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:40,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:40,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:40,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 01:15:40,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:40,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:15:40,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:15:40,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 01:15:40,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:40,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:40,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:40,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:40,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:40,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:40,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:15:40,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:40,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:40,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:40,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:15:40,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:40,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 01:15:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:40,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:40,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:42,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:42,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-27 01:15:42,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:15:42,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1740 [2020-10-27 01:15:42,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 01:15:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-27 01:15:42,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:42,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:42,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:42,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:42,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:42,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:42,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 01:15:42,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:42,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:42,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:42,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:15:42,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:42,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:42,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:43,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:43,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 01:15:43,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:43,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-27 01:15:43,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:43,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 01:15:43,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:43,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 01:15:43,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:43,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:43,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:43,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:43,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:43,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:43,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 01:15:43,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:43,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:15:43,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:43,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 01:15:43,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:43,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:43,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:43,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:43,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:43,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:43,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 01:15:43,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:43,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 01:15:43,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:43,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:43,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:43,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:43,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:43,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:43,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:15:43,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:43,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:43,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:43,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:43,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:43,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:15:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:43,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:43,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:43,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 01:15:43,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:43,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-27 01:15:43,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:43,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 01:15:43,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:15:43,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 01:15:43,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:44,575 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2020-10-27 01:15:44,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:44,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:44,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:44,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:44,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:44,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-27 01:15:44,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:44,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:15:44,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:15:44,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 01:15:44,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0