/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_double_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:15:09,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:15:09,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:15:09,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:15:09,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:15:09,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:15:09,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:15:09,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:15:09,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:15:09,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:15:09,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:15:09,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:15:09,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:15:09,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:15:09,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:15:09,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:15:09,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:15:09,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:15:09,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:15:09,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:15:09,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:15:09,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:15:09,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:15:09,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:15:09,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:15:09,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:15:09,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:15:09,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:15:09,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:15:09,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:15:09,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:15:09,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:15:09,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:15:09,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:15:09,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:15:09,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:15:09,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:15:09,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:15:09,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:15:09,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:15:09,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:15:09,290 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 01:15:09,345 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:15:09,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:15:09,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:15:09,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:15:09,351 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:15:09,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:15:09,352 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:15:09,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:15:09,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:15:09,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:15:09,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:15:09,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:15:09,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:15:09,354 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:15:09,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:15:09,355 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:15:09,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:15:09,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:15:09,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:15:09,356 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:15:09,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:15:09,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:15:09,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:15:09,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:15:09,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:15:09,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:15:09,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:15:09,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:15:09,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:15:09,359 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:15:09,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:15:09,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:15:09,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:15:09,858 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:15:09,861 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:15:09,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-10-27 01:15:09,955 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d61347e02/7e52d05f1ddb4e8fa2769dea7efbd570/FLAG209ef4b7a [2020-10-27 01:15:10,607 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:15:10,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-10-27 01:15:10,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d61347e02/7e52d05f1ddb4e8fa2769dea7efbd570/FLAG209ef4b7a [2020-10-27 01:15:10,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d61347e02/7e52d05f1ddb4e8fa2769dea7efbd570 [2020-10-27 01:15:10,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:15:10,895 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:15:10,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:15:10,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:15:10,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:15:10,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:15:10" (1/1) ... [2020-10-27 01:15:10,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33e673fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:10, skipping insertion in model container [2020-10-27 01:15:10,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:15:10" (1/1) ... [2020-10-27 01:15:10,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:15:10,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:15:11,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:15:11,500 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:15:11,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:15:11,632 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:15:11,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:11 WrapperNode [2020-10-27 01:15:11,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:15:11,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:15:11,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:15:11,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:15:11,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:11" (1/1) ... [2020-10-27 01:15:11,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:11" (1/1) ... [2020-10-27 01:15:11,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:11" (1/1) ... [2020-10-27 01:15:11,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:11" (1/1) ... [2020-10-27 01:15:11,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:11" (1/1) ... [2020-10-27 01:15:11,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:11" (1/1) ... [2020-10-27 01:15:11,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:11" (1/1) ... [2020-10-27 01:15:11,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:15:11,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:15:11,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:15:11,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:15:11,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:11" (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 01:15:11,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:15:11,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:15:11,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-27 01:15:11,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-27 01:15:11,821 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:15:11,822 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 01:15:11,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 01:15:11,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-10-27 01:15:11,822 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-27 01:15:11,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-27 01:15:11,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-27 01:15:11,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-27 01:15:11,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-27 01:15:11,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-27 01:15:11,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-10-27 01:15:11,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-10-27 01:15:11,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-27 01:15:11,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-10-27 01:15:11,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-10-27 01:15:11,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-10-27 01:15:11,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 01:15:11,826 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-27 01:15:11,826 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-27 01:15:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 01:15:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-27 01:15:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:15:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-27 01:15:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-27 01:15:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-27 01:15:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-27 01:15:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-27 01:15:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-27 01:15:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-27 01:15:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-27 01:15:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-27 01:15:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-27 01:15:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-27 01:15:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-27 01:15:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-27 01:15:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-27 01:15:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-27 01:15:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-27 01:15:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-27 01:15:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-27 01:15:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-27 01:15:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-27 01:15:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-27 01:15:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-27 01:15:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-27 01:15:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-27 01:15:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-27 01:15:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-27 01:15:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-27 01:15:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-27 01:15:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-27 01:15:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-27 01:15:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-27 01:15:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-27 01:15:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-27 01:15:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-27 01:15:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-27 01:15:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-27 01:15:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-27 01:15:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-27 01:15:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-27 01:15:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-27 01:15:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-27 01:15:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-27 01:15:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-27 01:15:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-27 01:15:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-27 01:15:11,836 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-27 01:15:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-27 01:15:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-27 01:15:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-27 01:15:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-27 01:15:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-27 01:15:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-27 01:15:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 01:15:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 01:15:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-27 01:15:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 01:15:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-27 01:15:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-27 01:15:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-27 01:15:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-27 01:15:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:15:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-27 01:15:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-27 01:15:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 01:15:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-27 01:15:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-27 01:15:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-27 01:15:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-27 01:15:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-27 01:15:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-27 01:15:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-27 01:15:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-27 01:15:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-27 01:15:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-27 01:15:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-27 01:15:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-27 01:15:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-27 01:15:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-27 01:15:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-27 01:15:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-27 01:15:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-27 01:15:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-27 01:15:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-27 01:15:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-27 01:15:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-27 01:15:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-27 01:15:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-27 01:15:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-27 01:15:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-27 01:15:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-27 01:15:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-27 01:15:11,846 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-27 01:15:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-27 01:15:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-27 01:15:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-27 01:15:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-27 01:15:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-27 01:15:11,848 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-27 01:15:11,848 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-27 01:15:11,848 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-27 01:15:11,848 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-27 01:15:11,848 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-27 01:15:11,848 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:15:11,849 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 01:15:11,850 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 01:15:11,851 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:15:11,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:15:11,854 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 01:15:11,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 01:15:11,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 01:15:11,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 01:15:11,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-10-27 01:15:11,856 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-27 01:15:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 01:15:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-27 01:15:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-27 01:15:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-27 01:15:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 01:15:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-27 01:15:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-27 01:15:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-10-27 01:15:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-10-27 01:15:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-27 01:15:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-10-27 01:15:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-10-27 01:15:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-10-27 01:15:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:15:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 01:15:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-27 01:15:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-27 01:15:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 01:15:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-27 01:15:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:15:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:15:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:15:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 01:15:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:15:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:15:11,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:15:12,967 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:15:12,967 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-27 01:15:12,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:15:12 BoogieIcfgContainer [2020-10-27 01:15:12,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:15:12,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:15:12,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:15:12,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:15:12,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:15:10" (1/3) ... [2020-10-27 01:15:12,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33499007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:15:12, skipping insertion in model container [2020-10-27 01:15:12,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:11" (2/3) ... [2020-10-27 01:15:12,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33499007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:15:12, skipping insertion in model container [2020-10-27 01:15:12,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:15:12" (3/3) ... [2020-10-27 01:15:12,981 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-10-27 01:15:12,995 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:15:13,001 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:15:13,017 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:15:13,045 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:15:13,046 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:15:13,046 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:15:13,046 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:15:13,046 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:15:13,046 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:15:13,046 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:15:13,046 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:15:13,068 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states. [2020-10-27 01:15:13,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-27 01:15:13,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:13,077 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 01:15:13,077 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:13,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:13,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1326439761, now seen corresponding path program 1 times [2020-10-27 01:15:13,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:13,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600480315] [2020-10-27 01:15:13,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:13,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:13,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:13,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:13,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:13,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:13,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-27 01:15:13,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:15:13,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-10-27 01:15:13,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:13,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:13,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 01:15:13,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:13,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:15:13,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:13,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:13,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:13,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:13,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:13,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 01:15:13,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:13,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:13,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:13,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:13,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:13,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:15:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:13,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:13,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:13,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 01:15:13,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:13,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:15:13,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:13,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:13,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:13,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:13,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:13,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:13,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:13,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:13,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:13,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:13,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 01:15:13,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:13,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:13,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 01:15:13,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:13,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:13,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:13,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:13,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:13,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:13,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:13,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:15:13,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:13,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:13,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:15:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:13,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:13,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:15:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:13,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:13,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:13,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:13,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:13,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:15:13,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 01:15:13,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:13,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:13,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 01:15:13,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:13,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:13,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:13,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:13,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:13,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:13,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:13,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:15:13,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:13,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:13,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:15:13,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:13,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:13,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 01:15:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:13,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:13,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:13,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:13,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:13,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:15:13,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 01:15:13,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:13,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:13,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:15:13,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:13,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:13,959 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 01:15:13,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600480315] [2020-10-27 01:15:13,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:15:13,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:15:13,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240444469] [2020-10-27 01:15:13,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:15:13,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:15:13,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:15:13,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:15:13,987 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 4 states. [2020-10-27 01:15:14,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:15:14,391 INFO L93 Difference]: Finished difference Result 222 states and 280 transitions. [2020-10-27 01:15:14,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:15:14,393 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-27 01:15:14,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:15:14,405 INFO L225 Difference]: With dead ends: 222 [2020-10-27 01:15:14,406 INFO L226 Difference]: Without dead ends: 111 [2020-10-27 01:15:14,411 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 01:15:14,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-27 01:15:14,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 98. [2020-10-27 01:15:14,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-27 01:15:14,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2020-10-27 01:15:14,477 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 44 [2020-10-27 01:15:14,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:15:14,478 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2020-10-27 01:15:14,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:15:14,478 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2020-10-27 01:15:14,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-27 01:15:14,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:14,481 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 01:15:14,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:15:14,481 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:14,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:14,482 INFO L82 PathProgramCache]: Analyzing trace with hash -547812891, now seen corresponding path program 1 times [2020-10-27 01:15:14,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:14,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [676910232] [2020-10-27 01:15:14,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:14,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:14,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:14,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-27 01:15:14,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:14,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-27 01:15:14,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:14,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:14,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-27 01:15:14,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:15:14,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:14,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:14,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:14,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:14,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:14,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:14,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 01:15:14,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:14,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:14,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:14,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:14,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:14,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:15:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:14,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:14,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:14,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 01:15:14,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:14,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:15:14,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:14,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:14,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:14,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:14,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:14,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:14,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:14,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:14,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:14,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:14,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 01:15:14,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:14,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:14,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:14,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:14,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:14,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:14,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:14,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:14,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:14,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:14,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:15:14,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:14,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:14,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:14,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:14,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:14,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:15:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:14,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:14,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:14,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:14,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:14,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:15:14,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:14,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:14,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:14,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:14,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:14,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:14,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:14,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:14,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:14,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:14,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:15:14,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:14,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:14,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:14,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:14,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:14,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 01:15:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:14,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:14,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:14,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:14,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:14,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 01:15:14,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:14,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:14,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:14,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:15:14,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:14,832 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 01:15:14,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [676910232] [2020-10-27 01:15:14,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:15:14,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 01:15:14,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168757849] [2020-10-27 01:15:14,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 01:15:14,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:15:14,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 01:15:14,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:15:14,836 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 6 states. [2020-10-27 01:15:15,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:15:15,557 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2020-10-27 01:15:15,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 01:15:15,558 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-10-27 01:15:15,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:15:15,561 INFO L225 Difference]: With dead ends: 119 [2020-10-27 01:15:15,561 INFO L226 Difference]: Without dead ends: 115 [2020-10-27 01:15:15,563 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 01:15:15,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-27 01:15:15,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 102. [2020-10-27 01:15:15,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-27 01:15:15,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 116 transitions. [2020-10-27 01:15:15,583 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 116 transitions. Word has length 44 [2020-10-27 01:15:15,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:15:15,584 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 116 transitions. [2020-10-27 01:15:15,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 01:15:15,584 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2020-10-27 01:15:15,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-27 01:15:15,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:15,586 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 01:15:15,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:15:15,586 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:15,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:15,587 INFO L82 PathProgramCache]: Analyzing trace with hash 817475022, now seen corresponding path program 1 times [2020-10-27 01:15:15,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:15,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1877516053] [2020-10-27 01:15:15,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:15,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:16,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:16,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-27 01:15:16,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:16,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-10-27 01:15:16,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:16,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 01:15:16,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 01:15:16,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 01:15:16,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:16,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:16,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:16,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:16,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:16,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:16,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 01:15:16,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:16,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:16,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:16,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 01:15:16,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:16,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:15:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:16,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:16,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:16,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 01:15:16,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:16,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:15:16,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 01:15:16,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:16,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:16,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:16,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:16,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:16,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:16,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 01:15:16,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:16,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:16,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:16,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 01:15:16,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:16,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:16,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:16,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:16,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:16,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:16,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:15:16,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:16,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:16,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:15:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:16,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:16,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:16,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:16,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:16,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 01:15:16,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:16,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:16,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:16,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 01:15:16,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:16,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:16,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:16,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:16,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:16,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:16,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:15:16,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:16,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:16,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:16,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:16,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:16,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 01:15:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:16,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:16,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:16,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:16,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:16,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 01:15:16,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:15:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 01:15:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:15:16,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:16,358 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 01:15:16,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1877516053] [2020-10-27 01:15:16,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:15:16,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 01:15:16,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098452222] [2020-10-27 01:15:16,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 01:15:16,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:15:16,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 01:15:16,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:15:16,360 INFO L87 Difference]: Start difference. First operand 102 states and 116 transitions. Second operand 7 states. [2020-10-27 01:15:18,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:15:18,037 INFO L93 Difference]: Finished difference Result 289 states and 352 transitions. [2020-10-27 01:15:18,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 01:15:18,038 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2020-10-27 01:15:18,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:15:18,043 INFO L225 Difference]: With dead ends: 289 [2020-10-27 01:15:18,044 INFO L226 Difference]: Without dead ends: 201 [2020-10-27 01:15:18,046 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-10-27 01:15:18,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-10-27 01:15:18,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 163. [2020-10-27 01:15:18,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-27 01:15:18,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 196 transitions. [2020-10-27 01:15:18,082 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 196 transitions. Word has length 44 [2020-10-27 01:15:18,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:15:18,082 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 196 transitions. [2020-10-27 01:15:18,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 01:15:18,082 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 196 transitions. [2020-10-27 01:15:18,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-27 01:15:18,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:18,087 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 01:15:18,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 01:15:18,087 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:18,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:18,088 INFO L82 PathProgramCache]: Analyzing trace with hash -847406493, now seen corresponding path program 1 times [2020-10-27 01:15:18,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:18,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8632466] [2020-10-27 01:15:18,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:18,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:18,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:18,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:18,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 01:15:18,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:15:18,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 661 [2020-10-27 01:15:18,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:18,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:18,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-27 01:15:18,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:15:18,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:18,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:18,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:18,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:18,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:18,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:18,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:15:18,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:18,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:18,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:18,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:18,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:18,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:15:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:18,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:18,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:18,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 01:15:18,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:18,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:15:18,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:18,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:18,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:18,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:18,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:18,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:18,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:18,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:18,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:18,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 01:15:18,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:18,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:18,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:18,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:18,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:18,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:18,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:18,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:18,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:18,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:18,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:15:18,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:18,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:18,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:18,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:18,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:18,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:15:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:18,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:18,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:18,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:18,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:18,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:15:18,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:18,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:18,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:18,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:18,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:18,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:18,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:18,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:18,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:15:18,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:18,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:18,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:18,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:18,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:18,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 01:15:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:18,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:18,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:18,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 01:15:18,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:18,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 01:15:18,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 01:15:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:15:18,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:18,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:18,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:19,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:15:19,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:19,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:19,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:19,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 01:15:19,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [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: 3 [2020-10-27 01:15:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 01:15:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:15:19,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:19,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 01:15:19,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:19,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:19,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:15:19,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 01:15:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 01:15:19,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:15:19,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-27 01:15:19,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:19,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 01:15:19,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:15:19,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:19,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:15:19,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:19,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:19,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:19,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 01:15:19,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 01:15:19,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:19,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 01:15:19,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:15:19,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:19,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 01:15:19,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:19,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:19,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:15:19,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 01:15:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:19,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:15:19,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:19,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 01:15:19,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:19,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,365 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 01:15:19,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8632466] [2020-10-27 01:15:19,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:15:19,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 01:15:19,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926698516] [2020-10-27 01:15:19,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 01:15:19,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:15:19,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 01:15:19,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:15:19,368 INFO L87 Difference]: Start difference. First operand 163 states and 196 transitions. Second operand 7 states. [2020-10-27 01:15:20,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:15:20,227 INFO L93 Difference]: Finished difference Result 297 states and 357 transitions. [2020-10-27 01:15:20,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 01:15:20,227 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-10-27 01:15:20,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:15:20,233 INFO L225 Difference]: With dead ends: 297 [2020-10-27 01:15:20,233 INFO L226 Difference]: Without dead ends: 171 [2020-10-27 01:15:20,239 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 01:15:20,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-27 01:15:20,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2020-10-27 01:15:20,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-27 01:15:20,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 202 transitions. [2020-10-27 01:15:20,271 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 202 transitions. Word has length 92 [2020-10-27 01:15:20,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:15:20,272 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 202 transitions. [2020-10-27 01:15:20,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 01:15:20,272 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 202 transitions. [2020-10-27 01:15:20,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-27 01:15:20,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:20,276 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 01:15:20,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 01:15:20,277 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:20,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:20,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1930944587, now seen corresponding path program 1 times [2020-10-27 01:15:20,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:20,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185355942] [2020-10-27 01:15:20,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:20,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:20,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:20,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:20,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:25,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:25,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 01:15:25,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:15:25,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 01:15:25,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:25,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 01:15:25,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 01:15:25,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-27 01:15:25,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:25,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:25,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:25,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:25,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:25,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:25,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 01:15:25,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:25,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:25,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:25,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 01:15:25,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:25,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:15:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:25,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:25,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:25,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 01:15:25,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:25,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 01:15:25,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 01:15:25,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:25,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:25,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:25,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:25,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:25,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:25,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 01:15:25,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 01:15:25,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:25,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:25,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:25,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:25,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:25,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:25,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:15:25,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:25,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:25,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:15:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:25,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:25,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:25,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:25,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:25,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 01:15:25,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:25,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 01:15:25,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:25,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:25,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:25,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:25,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:25,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:25,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:15:25,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:25,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:25,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:25,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:25,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:25,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 01:15:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:25,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:25,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:25,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:25,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:26,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:26,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 01:15:26,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:15:26,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-10-27 01:15:26,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:26,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:15:26,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:15:26,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 01:15:26,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:26,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:26,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:26,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:26,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:26,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:26,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:15:26,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:26,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:26,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:26,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:15:26,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:26,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:26,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:26,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:26,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 01:15:26,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:26,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 01:15:26,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:26,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:15:26,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:15:26,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 01:15:26,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:26,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:26,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:26,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:26,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:26,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:26,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 01:15:26,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:26,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:26,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:26,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:15:26,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:26,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 01:15:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:26,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:26,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:26,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:26,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 01:15:26,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:15:26,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 472 [2020-10-27 01:15:26,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:26,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 01:15:26,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:15:26,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 01:15:26,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:26,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:26,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:26,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:26,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:26,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:26,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:15:26,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:26,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:26,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:26,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:15:26,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:26,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 01:15:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:26,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:26,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:26,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 01:15:26,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:26,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 01:15:26,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:26,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 01:15:26,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:15:26,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 01:15:26,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:26,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:26,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:26,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:26,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:26,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:26,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 01:15:26,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:15:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:26,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 01:15:26,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:27,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 01:15:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:27,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:27,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:27,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:27,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:27,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:15:27,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:27,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:27,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 01:15:27,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:27,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:27,053 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 01:15:27,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185355942] [2020-10-27 01:15:27,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:15:27,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 01:15:27,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347240592] [2020-10-27 01:15:27,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 01:15:27,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:15:27,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 01:15:27,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-27 01:15:27,058 INFO L87 Difference]: Start difference. First operand 169 states and 202 transitions. Second operand 12 states. [2020-10-27 01:15:30,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:15:30,629 INFO L93 Difference]: Finished difference Result 407 states and 489 transitions. [2020-10-27 01:15:30,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-27 01:15:30,630 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 92 [2020-10-27 01:15:30,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:15:30,633 INFO L225 Difference]: With dead ends: 407 [2020-10-27 01:15:30,633 INFO L226 Difference]: Without dead ends: 232 [2020-10-27 01:15:30,635 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 01:15:30,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-27 01:15:30,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 174. [2020-10-27 01:15:30,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-27 01:15:30,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 199 transitions. [2020-10-27 01:15:30,680 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 199 transitions. Word has length 92 [2020-10-27 01:15:30,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:15:30,681 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 199 transitions. [2020-10-27 01:15:30,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 01:15:30,681 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 199 transitions. [2020-10-27 01:15:30,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 01:15:30,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:30,685 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 01:15:30,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 01:15:30,685 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:30,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:30,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1290820386, now seen corresponding path program 1 times [2020-10-27 01:15:30,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:30,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [715927704] [2020-10-27 01:15:30,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:15:30,749 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:15:30,750 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:15:30,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 01:15:30,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:15:30 BoogieIcfgContainer [2020-10-27 01:15:30,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:15:30,812 INFO L168 Benchmark]: Toolchain (without parser) took 19918.73 ms. Allocated memory was 172.0 MB in the beginning and 377.5 MB in the end (delta: 205.5 MB). Free memory was 123.6 MB in the beginning and 329.9 MB in the end (delta: -206.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:15:30,815 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 172.0 MB. Free memory was 142.9 MB in the beginning and 142.8 MB in the end (delta: 102.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:15:30,817 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.01 ms. Allocated memory is still 172.0 MB. Free memory was 123.0 MB in the beginning and 138.8 MB in the end (delta: -15.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2020-10-27 01:15:30,819 INFO L168 Benchmark]: Boogie Preprocessor took 98.37 ms. Allocated memory is still 172.0 MB. Free memory was 138.8 MB in the beginning and 135.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:15:30,824 INFO L168 Benchmark]: RCFGBuilder took 1237.02 ms. Allocated memory is still 172.0 MB. Free memory was 135.7 MB in the beginning and 134.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. [2020-10-27 01:15:30,825 INFO L168 Benchmark]: TraceAbstraction took 17834.36 ms. Allocated memory was 172.0 MB in the beginning and 377.5 MB in the end (delta: 205.5 MB). Free memory was 134.0 MB in the beginning and 329.9 MB in the end (delta: -195.8 MB). Peak memory consumption was 9.2 MB. Max. memory is 8.0 GB. [2020-10-27 01:15:30,834 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 172.0 MB. Free memory was 142.9 MB in the beginning and 142.8 MB in the end (delta: 102.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 734.01 ms. Allocated memory is still 172.0 MB. Free memory was 123.0 MB in the beginning and 138.8 MB in the end (delta: -15.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 98.37 ms. Allocated memory is still 172.0 MB. Free memory was 138.8 MB in the beginning and 135.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1237.02 ms. Allocated memory is still 172.0 MB. Free memory was 135.7 MB in the beginning and 134.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17834.36 ms. Allocated memory was 172.0 MB in the beginning and 377.5 MB in the end (delta: 205.5 MB). Free memory was 134.0 MB in the beginning and 329.9 MB in the end (delta: -195.8 MB). Peak memory consumption was 9.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 562]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L665] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; [L692] CALL foo() [L681] FCALL ldv_initialize() [L682] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L576] void *ptr = malloc(size); [L577] CALL assume_abort_if_not(ptr!=0) [L565] COND FALSE !(!cond) [L577] RET assume_abort_if_not(ptr!=0) [L578] return ptr; [L682] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L682] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L683] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L576] void *ptr = malloc(size); [L577] CALL assume_abort_if_not(ptr!=0) [L565] COND FALSE !(!cond) [L577] RET assume_abort_if_not(ptr!=0) [L578] return ptr; [L683] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L683] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L684] CALL mutex_lock(m1) [L669] CALL ldv_is_in_set(m, &mutexes) [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L655] COND FALSE !(&m->list != (s)) [L660] return 0; [L669] RET ldv_is_in_set(m, &mutexes) [L669] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L670] CALL ldv_set_add(m, &mutexes) [L636] CALL, EXPR ldv_is_in_set(new, s) [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L655] COND FALSE !(&m->list != (s)) [L660] return 0; [L636] RET, EXPR ldv_is_in_set(new, s) [L636] COND TRUE !ldv_is_in_set(new, s) [L637] struct ldv_list_element *le; [L638] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L576] void *ptr = malloc(size); [L577] CALL assume_abort_if_not(ptr!=0) [L565] COND FALSE !(!cond) [L577] RET assume_abort_if_not(ptr!=0) [L578] return ptr; [L638] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L638] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L639] le->e = new [L640] CALL ldv_list_add(&le->list, s) [L608] EXPR head->next [L608] CALL __ldv_list_add(new, head, head->next) [L596] next->prev = new [L597] new->next = next [L598] new->prev = prev [L599] prev->next = new [L608] RET __ldv_list_add(new, head, head->next) [L640] RET ldv_list_add(&le->list, s) [L670] RET ldv_set_add(m, &mutexes) [L684] RET mutex_lock(m1) [L685] CALL mutex_lock(m1) [L669] CALL ldv_is_in_set(m, &mutexes) [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L655] COND TRUE &m->list != (s) [L656] EXPR m->e [L656] COND TRUE m->e == e [L657] return 1; [L669] RET ldv_is_in_set(m, &mutexes) [L669] COND TRUE ldv_is_in_set(m, &mutexes) [L669] CALL reach_error() [L562] COND FALSE !(0) [L562] __assert_fail ("0", "model/ldv.h", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 134 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.7s, OverallIterations: 6, TraceHistogramMax: 5, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 539 SDtfs, 736 SDslu, 414 SDs, 0 SdLazy, 2149 SolverSat, 464 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 124 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 404 NumberOfCodeBlocks, 404 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 99144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 150/165 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...