/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=DEEPEST --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 19:55:59,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:55:59,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:55:59,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:55:59,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:55:59,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:55:59,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:55:59,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:55:59,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:55:59,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:55:59,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:55:59,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:55:59,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:55:59,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:55:59,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:55:59,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:55:59,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:55:59,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:55:59,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:55:59,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:55:59,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:55:59,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:55:59,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:55:59,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:55:59,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:55:59,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:55:59,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:55:59,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:55:59,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:55:59,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:55:59,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:55:59,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:55:59,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:55:59,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:55:59,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:55:59,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:55:59,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:55:59,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:55:59,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:55:59,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:55:59,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:55:59,221 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 19:55:59,266 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:55:59,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:55:59,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:55:59,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:55:59,272 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:55:59,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:55:59,273 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:55:59,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:55:59,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:55:59,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:55:59,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:55:59,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:55:59,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:55:59,276 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:55:59,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:55:59,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:55:59,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:55:59,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:55:59,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:55:59,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:55:59,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:55:59,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:55:59,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:55:59,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:55:59,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:55:59,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:55:59,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:55:59,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:55:59,280 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:55:59,280 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:55:59,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:55:59,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:55:59,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:55:59,751 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:55:59,752 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:55:59,753 INFO L432 ainManager$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 19:55:59,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a29e2aa0c/a02f6a0b75a249a1aed9df6a29e85e1e/FLAG4611bf517 [2020-10-27 19:56:00,597 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:56:00,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-10-27 19:56:00,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a29e2aa0c/a02f6a0b75a249a1aed9df6a29e85e1e/FLAG4611bf517 [2020-10-27 19:56:00,765 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a29e2aa0c/a02f6a0b75a249a1aed9df6a29e85e1e [2020-10-27 19:56:00,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:56:00,778 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:56:00,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:56:00,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:56:00,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:56:00,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:56:00" (1/1) ... [2020-10-27 19:56:00,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68bca77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:00, skipping insertion in model container [2020-10-27 19:56:00,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:56:00" (1/1) ... [2020-10-27 19:56:00,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:56:00,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:56:01,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:56:01,358 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:56:01,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:56:01,581 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:56:01,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:01 WrapperNode [2020-10-27 19:56:01,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:56:01,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:56:01,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:56:01,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:56:01,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:01" (1/1) ... [2020-10-27 19:56:01,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:01" (1/1) ... [2020-10-27 19:56:01,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:01" (1/1) ... [2020-10-27 19:56:01,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:01" (1/1) ... [2020-10-27 19:56:01,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:01" (1/1) ... [2020-10-27 19:56:01,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:01" (1/1) ... [2020-10-27 19:56:01,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:01" (1/1) ... [2020-10-27 19:56:01,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:56:01,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:56:01,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:56:01,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:56:01,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:01" (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 19:56:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:56:01,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:56:01,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-27 19:56:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-27 19:56:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:56:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 19:56:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 19:56:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-10-27 19:56:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-27 19:56:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-27 19:56:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-27 19:56:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-27 19:56:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-27 19:56:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-27 19:56:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-10-27 19:56:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-10-27 19:56:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-27 19:56:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-10-27 19:56:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-10-27 19:56:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-10-27 19:56:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 19:56:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-27 19:56:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-27 19:56:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 19:56:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-27 19:56:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:56:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-27 19:56:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-27 19:56:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-27 19:56:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-27 19:56:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-27 19:56:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-27 19:56:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-27 19:56:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-27 19:56:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-27 19:56:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-27 19:56:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-27 19:56:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-27 19:56:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-27 19:56:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-27 19:56:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-27 19:56:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-27 19:56:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-27 19:56:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-27 19:56:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-27 19:56:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-27 19:56:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-27 19:56:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-27 19:56:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-27 19:56:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-27 19:56:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-27 19:56:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-27 19:56:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-27 19:56:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-27 19:56:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-27 19:56:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-27 19:56:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-27 19:56:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-27 19:56:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-27 19:56:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-27 19:56:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-27 19:56:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-27 19:56:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-27 19:56:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-27 19:56:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-27 19:56:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-27 19:56:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-27 19:56:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-27 19:56:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-27 19:56:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-27 19:56:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-27 19:56:01,774 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-27 19:56:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-27 19:56:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-27 19:56:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-27 19:56:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-27 19:56:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-27 19:56:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-27 19:56:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 19:56:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 19:56:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-27 19:56:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 19:56:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-27 19:56:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-27 19:56:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-27 19:56:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-27 19:56:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:56:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-27 19:56:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-27 19:56:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 19:56:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-27 19:56:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-27 19:56:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-27 19:56:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-27 19:56:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-27 19:56:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-27 19:56:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-27 19:56:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-27 19:56:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-27 19:56:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-27 19:56:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-27 19:56:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-27 19:56:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-27 19:56:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-27 19:56:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-27 19:56:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-27 19:56:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-27 19:56:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-27 19:56:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-27 19:56:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-27 19:56:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-27 19:56:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-27 19:56:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-27 19:56:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-27 19:56:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-27 19:56:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-27 19:56:01,784 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-27 19:56:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-27 19:56:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-27 19:56:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-27 19:56:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-27 19:56:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-27 19:56:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-27 19:56:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-27 19:56:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-27 19:56:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-27 19:56:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-27 19:56:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-27 19:56:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:56:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 19:56:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 19:56:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:56:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:56:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 19:56:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 19:56:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 19:56:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 19:56:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-10-27 19:56:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-27 19:56:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 19:56:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-27 19:56:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-27 19:56:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-27 19:56:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 19:56:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-27 19:56:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-27 19:56:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-10-27 19:56:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-10-27 19:56:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-27 19:56:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-10-27 19:56:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-10-27 19:56:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-10-27 19:56:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:56:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 19:56:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-27 19:56:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-27 19:56:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 19:56:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-27 19:56:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:56:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:56:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:56:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 19:56:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:56:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:56:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:56:02,818 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:56:02,818 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-27 19:56:02,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:56:02 BoogieIcfgContainer [2020-10-27 19:56:02,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:56:02,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:56:02,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:56:02,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:56:02,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:56:00" (1/3) ... [2020-10-27 19:56:02,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5285a7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:56:02, skipping insertion in model container [2020-10-27 19:56:02,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:01" (2/3) ... [2020-10-27 19:56:02,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5285a7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:56:02, skipping insertion in model container [2020-10-27 19:56:02,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:56:02" (3/3) ... [2020-10-27 19:56:02,831 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-10-27 19:56:02,844 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:56:02,849 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:56:02,863 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:56:02,892 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:56:02,893 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:56:02,893 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:56:02,893 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:56:02,893 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:56:02,893 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:56:02,893 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:56:02,893 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:56:02,914 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states. [2020-10-27 19:56:02,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-27 19:56:02,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:56:02,923 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 19:56:02,923 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:56:02,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:56:02,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1326439761, now seen corresponding path program 1 times [2020-10-27 19:56:02,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:56:02,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598401028] [2020-10-27 19:56:02,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:56:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:03,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:03,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:03,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:03,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:03,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:03,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-27 19:56:03,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 19:56:03,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 480 [2020-10-27 19:56:03,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:03,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:56:03,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-27 19:56:03,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:56:03,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:56:03,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:56:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:03,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:03,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:03,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:56:03,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:03,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 19:56:03,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:03,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:03,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:03,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:03,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:03,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:56:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:03,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:03,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:03,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 19:56:03,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:03,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:56:03,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:03,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:03,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:03,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:03,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:03,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 19:56:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:03,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:03,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:03,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:03,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 19:56:03,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:56:03,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 19:56:03,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:03,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:03,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 19:56:03,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:03,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:03,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:03,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:03,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:03,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 19:56:03,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:03,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 19:56:03,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:03,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:03,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:56:03,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:03,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:03,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 19:56:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:03,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:03,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:03,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:03,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 19:56:03,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:56:03,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 19:56:03,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:03,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:03,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 19:56:03,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:03,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:03,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:03,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:03,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:03,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 19:56:03,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:03,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 19:56:03,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:56:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:03,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:03,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 19:56:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:03,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:03,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:03,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:03,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:56:03,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:56:03,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 19:56:03,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:03,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:03,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:56:03,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:03,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:03,892 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 19:56:03,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598401028] [2020-10-27 19:56:03,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:56:03,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 19:56:03,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438180433] [2020-10-27 19:56:03,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 19:56:03,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:56:03,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 19:56:03,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:56:03,921 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 5 states. [2020-10-27 19:56:04,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:56:04,457 INFO L93 Difference]: Finished difference Result 222 states and 280 transitions. [2020-10-27 19:56:04,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:56:04,459 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-10-27 19:56:04,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:56:04,472 INFO L225 Difference]: With dead ends: 222 [2020-10-27 19:56:04,472 INFO L226 Difference]: Without dead ends: 111 [2020-10-27 19:56:04,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:56:04,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-27 19:56:04,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 98. [2020-10-27 19:56:04,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-27 19:56:04,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2020-10-27 19:56:04,543 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 44 [2020-10-27 19:56:04,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:56:04,544 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2020-10-27 19:56:04,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 19:56:04,544 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2020-10-27 19:56:04,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-27 19:56:04,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:56:04,547 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 19:56:04,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:56:04,547 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:56:04,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:56:04,548 INFO L82 PathProgramCache]: Analyzing trace with hash -547812891, now seen corresponding path program 1 times [2020-10-27 19:56:04,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:56:04,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265172661] [2020-10-27 19:56:04,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:56:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:04,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:04,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:04,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-27 19:56:04,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:04,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-27 19:56:04,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:04,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:56:04,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-27 19:56:04,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:56:04,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:04,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:56:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:04,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:04,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:04,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:56:04,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:04,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 19:56:04,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:04,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:04,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:04,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:04,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:04,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:56:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:04,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:04,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:04,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 19:56:04,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:04,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 19:56:04,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:04,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:04,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:04,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:04,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:56:04,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 19:56:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:04,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:04,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:04,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 19:56:04,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:04,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 19:56:04,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:04,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:04,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:04,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:04,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:04,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:04,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:04,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:04,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 19:56:04,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:04,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 19:56:04,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:04,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:04,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:04,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:04,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:56:04,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 19:56:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:04,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:04,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:04,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 19:56:04,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:04,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 19:56:04,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:04,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:04,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:04,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:04,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:04,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 19:56:04,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:04,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 19:56:04,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:04,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:04,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:04,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:04,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:04,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 19:56:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:04,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:04,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:04,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:56:04,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:04,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 19:56:04,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:04,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:56:04,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:04,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 19:56:04,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:04,963 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 19:56:04,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265172661] [2020-10-27 19:56:04,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:56:04,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 19:56:04,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519898974] [2020-10-27 19:56:04,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 19:56:04,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:56:04,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 19:56:04,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:56:04,969 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 6 states. [2020-10-27 19:56:05,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:56:05,533 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2020-10-27 19:56:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 19:56:05,534 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-10-27 19:56:05,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:56:05,537 INFO L225 Difference]: With dead ends: 119 [2020-10-27 19:56:05,537 INFO L226 Difference]: Without dead ends: 115 [2020-10-27 19:56:05,538 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 19:56:05,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-27 19:56:05,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 102. [2020-10-27 19:56:05,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-27 19:56:05,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 116 transitions. [2020-10-27 19:56:05,560 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 116 transitions. Word has length 44 [2020-10-27 19:56:05,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:56:05,561 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 116 transitions. [2020-10-27 19:56:05,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 19:56:05,561 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2020-10-27 19:56:05,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-27 19:56:05,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:56:05,564 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 19:56:05,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:56:05,564 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:56:05,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:56:05,565 INFO L82 PathProgramCache]: Analyzing trace with hash 817475022, now seen corresponding path program 1 times [2020-10-27 19:56:05,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:56:05,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701493347] [2020-10-27 19:56:05,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:56:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:05,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:06,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:06,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-27 19:56:06,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:06,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-10-27 19:56:06,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:06,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 19:56:06,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:56:06,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 19:56:06,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:06,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:56:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:06,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:06,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:06,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:56:06,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:06,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 19:56:06,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:06,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 19:56:06,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:06,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 19:56:06,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:06,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:56:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:06,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:06,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:06,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 19:56:06,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:06,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 19:56:06,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:06,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 19:56:06,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:06,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 19:56:06,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:06,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 19:56:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:06,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:06,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:06,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 19:56:06,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:06,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 19:56:06,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:06,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 19:56:06,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:06,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 19:56:06,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:06,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:06,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:06,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:06,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 19:56:06,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:06,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 19:56:06,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:06,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:06,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:06,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:06,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:06,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 19:56:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:06,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:06,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:06,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 19:56:06,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:06,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 19:56:06,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:06,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 19:56:06,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:06,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 19:56:06,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:06,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:06,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:06,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:06,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 19:56:06,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:06,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 19:56:06,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:06,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:06,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:06,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:06,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:06,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 19:56:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:06,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:06,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:06,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:56:06,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:06,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 19:56:06,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:06,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 19:56:06,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 19:56:06,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 19:56:06,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:06,302 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 19:56:06,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701493347] [2020-10-27 19:56:06,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:56:06,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 19:56:06,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948776284] [2020-10-27 19:56:06,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 19:56:06,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:56:06,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 19:56:06,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-27 19:56:06,305 INFO L87 Difference]: Start difference. First operand 102 states and 116 transitions. Second operand 7 states. [2020-10-27 19:56:07,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:56:07,994 INFO L93 Difference]: Finished difference Result 289 states and 352 transitions. [2020-10-27 19:56:08,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 19:56:08,003 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2020-10-27 19:56:08,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:56:08,007 INFO L225 Difference]: With dead ends: 289 [2020-10-27 19:56:08,007 INFO L226 Difference]: Without dead ends: 201 [2020-10-27 19:56:08,009 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 19:56:08,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-10-27 19:56:08,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 163. [2020-10-27 19:56:08,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-27 19:56:08,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 196 transitions. [2020-10-27 19:56:08,041 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 196 transitions. Word has length 44 [2020-10-27 19:56:08,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:56:08,042 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 196 transitions. [2020-10-27 19:56:08,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 19:56:08,042 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 196 transitions. [2020-10-27 19:56:08,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-27 19:56:08,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:56:08,046 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 19:56:08,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 19:56:08,047 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:56:08,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:56:08,047 INFO L82 PathProgramCache]: Analyzing trace with hash -847406493, now seen corresponding path program 1 times [2020-10-27 19:56:08,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:56:08,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530605448] [2020-10-27 19:56:08,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:56:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:08,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:08,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:08,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:08,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 19:56:08,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:56:08,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 477 [2020-10-27 19:56:08,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:08,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:56:08,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-27 19:56:08,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:56:08,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:08,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:56:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:08,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:08,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:08,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:56:08,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:08,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 19:56:08,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:08,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:08,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:08,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:08,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:08,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:56:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:08,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:08,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:08,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 19:56:08,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:08,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 19:56:08,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:08,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:08,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:08,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:08,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:08,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 19:56:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:08,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:08,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:08,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 19:56:08,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:08,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 19:56:08,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:08,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:08,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:08,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:08,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:08,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:08,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:08,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:08,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 19:56:08,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:08,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:56:08,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:08,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:08,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:08,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:08,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:08,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 19:56:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:08,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:08,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:08,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 19:56:08,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:08,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 19:56:08,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:08,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:08,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:08,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:08,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 19:56:08,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:08,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:08,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:08,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 19:56:08,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:08,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 19:56:08,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:08,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:08,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:08,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:08,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:08,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 19:56:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:08,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:08,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:08,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:08,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 19:56:08,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:56:08,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-27 19:56:08,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:08,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:56:08,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 19:56:08,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:56:08,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:08,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:08,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:08,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:08,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:56:08,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:08,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 19:56:08,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:08,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:08,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:08,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:08,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:08,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 19:56:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:08,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:08,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:08,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 19:56:08,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:08,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 19:56:08,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:08,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:56:08,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 19:56:08,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:56:08,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:08,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:08,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:08,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:08,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:56:08,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:08,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 19:56:08,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:08,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:56:08,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:08,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 19:56:08,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:08,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 19:56:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:08,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:08,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:08,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 19:56:08,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:08,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 19:56:08,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:56:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 19:56:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:56:08,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:08,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:08,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:08,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:08,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:56:08,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:08,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 19:56:08,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:08,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:08,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:08,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:08,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:08,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 19:56:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:09,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:09,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:09,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 19:56:09,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:09,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 19:56:09,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:09,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:56:09,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 19:56:09,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:56:09,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:56:09,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:09,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:09,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:09,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:56:09,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:09,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 19:56:09,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:56:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 19:56:09,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:09,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 19:56:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:09,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:09,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:09,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:56:09,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:09,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 19:56:09,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:09,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:09,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 19:56:09,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:09,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:09,121 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 19:56:09,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530605448] [2020-10-27 19:56:09,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 19:56:09,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 19:56:09,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328073973] [2020-10-27 19:56:09,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 19:56:09,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:56:09,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 19:56:09,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 19:56:09,124 INFO L87 Difference]: Start difference. First operand 163 states and 196 transitions. Second operand 7 states. [2020-10-27 19:56:09,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:56:09,847 INFO L93 Difference]: Finished difference Result 297 states and 357 transitions. [2020-10-27 19:56:09,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 19:56:09,848 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-10-27 19:56:09,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:56:09,850 INFO L225 Difference]: With dead ends: 297 [2020-10-27 19:56:09,850 INFO L226 Difference]: Without dead ends: 171 [2020-10-27 19:56:09,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-27 19:56:09,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-27 19:56:09,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2020-10-27 19:56:09,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-27 19:56:09,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 202 transitions. [2020-10-27 19:56:09,891 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 202 transitions. Word has length 92 [2020-10-27 19:56:09,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:56:09,892 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 202 transitions. [2020-10-27 19:56:09,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 19:56:09,892 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 202 transitions. [2020-10-27 19:56:09,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-27 19:56:09,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:56:09,896 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 19:56:09,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 19:56:09,898 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:56:09,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:56:09,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1930944587, now seen corresponding path program 1 times [2020-10-27 19:56:09,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:56:09,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645833706] [2020-10-27 19:56:09,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:56:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:09,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:10,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:10,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:10,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:14,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:14,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 19:56:14,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 19:56:14,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-27 19:56:14,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:14,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 19:56:14,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-27 19:56:14,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 19:56:14,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:15,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:56:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:15,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:15,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:15,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:56:15,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:15,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 19:56:15,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:15,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:15,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:15,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:15,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:56:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:15,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:15,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:15,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 19:56:15,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:15,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 19:56:15,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:15,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:15,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:15,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:15,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:15,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 19:56:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:15,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:15,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:15,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 19:56:15,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:15,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 19:56:15,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:15,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:15,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:15,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:15,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:15,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:15,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:15,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:15,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 19:56:15,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:15,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 19:56:15,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:15,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:15,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:15,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:15,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:15,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 19:56:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:15,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:15,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:15,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 19:56:15,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:15,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 19:56:15,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:15,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:15,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:15,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:15,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:15,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:15,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:15,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:15,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 19:56:15,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:15,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 19:56:15,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:15,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:15,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:15,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:15,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:15,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 19:56:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:15,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:15,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:15,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:15,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 19:56:15,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:56:15,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-27 19:56:15,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:15,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 19:56:15,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 19:56:15,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 19:56:15,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:15,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:15,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:15,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:15,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:56:15,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:15,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 19:56:15,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:15,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 19:56:15,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:15,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 19:56:15,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:15,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 19:56:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:15,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:15,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:15,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 19:56:15,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:15,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 19:56:15,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:15,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 19:56:15,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 19:56:15,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 19:56:15,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:15,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:15,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:15,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:15,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:56:15,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:15,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 19:56:15,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:15,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 19:56:15,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:15,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 19:56:15,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:15,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 19:56:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:15,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:15,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:15,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 19:56:15,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:15,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-27 19:56:15,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:15,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 19:56:15,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 19:56:15,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 19:56:15,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:15,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:15,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:15,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:15,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:56:15,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:15,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 19:56:15,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:15,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 19:56:15,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:15,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 19:56:15,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:15,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 19:56:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:15,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:15,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:15,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 19:56:15,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:15,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 19:56:15,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:15,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 19:56:15,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 19:56:15,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 19:56:15,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:15,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:56:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:15,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:15,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:15,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:56:15,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:15,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 19:56:15,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:15,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 19:56:15,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:15,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 19:56:15,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:15,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 19:56:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:15,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:15,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:15,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:56:15,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:15,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 19:56:15,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:15,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:15,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 19:56:15,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:15,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:15,929 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-27 19:56:15,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645833706] [2020-10-27 19:56:15,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 19:56:15,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 19:56:15,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834207602] [2020-10-27 19:56:15,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 19:56:15,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:56:15,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 19:56:15,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-27 19:56:15,934 INFO L87 Difference]: Start difference. First operand 169 states and 202 transitions. Second operand 13 states. [2020-10-27 19:56:19,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:56:19,086 INFO L93 Difference]: Finished difference Result 412 states and 503 transitions. [2020-10-27 19:56:19,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 19:56:19,087 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 92 [2020-10-27 19:56:19,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:56:19,090 INFO L225 Difference]: With dead ends: 412 [2020-10-27 19:56:19,090 INFO L226 Difference]: Without dead ends: 218 [2020-10-27 19:56:19,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=201, Invalid=729, Unknown=0, NotChecked=0, Total=930 [2020-10-27 19:56:19,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-27 19:56:19,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 186. [2020-10-27 19:56:19,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-27 19:56:19,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 219 transitions. [2020-10-27 19:56:19,124 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 219 transitions. Word has length 92 [2020-10-27 19:56:19,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:56:19,124 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 219 transitions. [2020-10-27 19:56:19,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 19:56:19,124 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 219 transitions. [2020-10-27 19:56:19,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 19:56:19,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:56:19,126 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 19:56:19,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 19:56:19,127 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:56:19,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:56:19,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1290820386, now seen corresponding path program 1 times [2020-10-27 19:56:19,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:56:19,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201071538] [2020-10-27 19:56:19,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:56:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:56:19,178 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:56:19,179 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:56:19,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 19:56:19,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:56:19 BoogieIcfgContainer [2020-10-27 19:56:19,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:56:19,225 INFO L168 Benchmark]: Toolchain (without parser) took 18451.00 ms. Allocated memory was 152.0 MB in the beginning and 325.1 MB in the end (delta: 173.0 MB). Free memory was 134.1 MB in the beginning and 232.3 MB in the end (delta: -98.2 MB). Peak memory consumption was 74.6 MB. Max. memory is 8.0 GB. [2020-10-27 19:56:19,225 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 152.0 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:56:19,226 INFO L168 Benchmark]: CACSL2BoogieTranslator took 802.46 ms. Allocated memory is still 152.0 MB. Free memory was 133.2 MB in the beginning and 117.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 17.3 MB. Max. memory is 8.0 GB. [2020-10-27 19:56:19,227 INFO L168 Benchmark]: Boogie Preprocessor took 84.57 ms. Allocated memory is still 152.0 MB. Free memory was 117.2 MB in the beginning and 114.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:56:19,228 INFO L168 Benchmark]: RCFGBuilder took 1152.85 ms. Allocated memory is still 152.0 MB. Free memory was 114.0 MB in the beginning and 113.2 MB in the end (delta: 848.9 kB). Peak memory consumption was 42.2 MB. Max. memory is 8.0 GB. [2020-10-27 19:56:19,229 INFO L168 Benchmark]: TraceAbstraction took 16398.28 ms. Allocated memory was 152.0 MB in the beginning and 325.1 MB in the end (delta: 173.0 MB). Free memory was 112.7 MB in the beginning and 232.3 MB in the end (delta: -119.6 MB). Peak memory consumption was 52.9 MB. Max. memory is 8.0 GB. [2020-10-27 19:56:19,232 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 152.0 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 802.46 ms. Allocated memory is still 152.0 MB. Free memory was 133.2 MB in the beginning and 117.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 17.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 84.57 ms. Allocated memory is still 152.0 MB. Free memory was 117.2 MB in the beginning and 114.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1152.85 ms. Allocated memory is still 152.0 MB. Free memory was 114.0 MB in the beginning and 113.2 MB in the end (delta: 848.9 kB). Peak memory consumption was 42.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16398.28 ms. Allocated memory was 152.0 MB in the beginning and 325.1 MB in the end (delta: 173.0 MB). Free memory was 112.7 MB in the beginning and 232.3 MB in the end (delta: -119.6 MB). Peak memory consumption was 52.9 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: 16.2s, OverallIterations: 6, TraceHistogramMax: 5, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 516 SDtfs, 677 SDslu, 507 SDs, 0 SdLazy, 2247 SolverSat, 403 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 120 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred 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, 98 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.7s InterpolantComputationTime, 404 NumberOfCodeBlocks, 404 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 108598 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 132/165 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...