/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:15:13,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:15:13,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:15:13,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:15:13,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:15:13,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:15:13,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:15:13,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:15:13,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:15:13,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:15:13,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:15:13,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:15:13,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:15:13,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:15:13,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:15:13,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:15:13,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:15:13,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:15:13,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:15:13,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:15:13,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:15:13,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:15:13,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:15:13,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:15:13,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:15:13,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:15:13,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:15:13,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:15:13,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:15:13,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:15:13,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:15:13,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:15:13,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:15:13,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:15:13,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:15:13,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:15:13,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:15:13,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:15:13,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:15:13,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:15:13,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:15:13,205 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 01:15:13,270 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:15:13,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:15:13,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:15:13,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:15:13,281 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:15:13,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:15:13,284 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:15:13,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:15:13,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:15:13,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:15:13,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:15:13,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:15:13,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:15:13,289 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:15:13,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:15:13,290 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:15:13,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:15:13,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:15:13,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:15:13,291 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:15:13,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:15:13,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:15:13,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:15:13,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:15:13,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:15:13,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:15:13,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:15:13,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:15:13,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:15:13,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:15:13,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:15:13,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:15:13,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:15:13,796 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:15:13,797 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:15:13,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i [2020-10-27 01:15:13,886 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f251c886f/1a6cb82457054d0fbe2d6ebc50df1749/FLAGdfe61fcf7 [2020-10-27 01:15:14,610 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:15:14,611 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i [2020-10-27 01:15:14,637 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f251c886f/1a6cb82457054d0fbe2d6ebc50df1749/FLAGdfe61fcf7 [2020-10-27 01:15:14,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f251c886f/1a6cb82457054d0fbe2d6ebc50df1749 [2020-10-27 01:15:14,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:15:14,903 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:15:14,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:15:14,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:15:14,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:15:14,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:15:14" (1/1) ... [2020-10-27 01:15:14,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c14f237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:14, skipping insertion in model container [2020-10-27 01:15:14,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:15:14" (1/1) ... [2020-10-27 01:15:14,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:15:15,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:15:15,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:15:15,629 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:15:15,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:15:15,906 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:15:15,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:15 WrapperNode [2020-10-27 01:15:15,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:15:15,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:15:15,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:15:15,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:15:15,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:15" (1/1) ... [2020-10-27 01:15:15,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:15" (1/1) ... [2020-10-27 01:15:15,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:15" (1/1) ... [2020-10-27 01:15:15,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:15" (1/1) ... [2020-10-27 01:15:16,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:15" (1/1) ... [2020-10-27 01:15:16,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:15" (1/1) ... [2020-10-27 01:15:16,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:15" (1/1) ... [2020-10-27 01:15:16,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:15:16,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:15:16,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:15:16,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:15:16,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:15:16,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:15:16,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:15:16,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-27 01:15:16,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-27 01:15:16,137 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:15:16,137 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 01:15:16,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 01:15:16,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-10-27 01:15:16,137 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-27 01:15:16,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-27 01:15:16,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-27 01:15:16,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-27 01:15:16,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-27 01:15:16,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-27 01:15:16,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-10-27 01:15:16,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-10-27 01:15:16,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-27 01:15:16,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-10-27 01:15:16,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-10-27 01:15:16,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-10-27 01:15:16,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 01:15:16,140 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-27 01:15:16,140 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-27 01:15:16,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 01:15:16,140 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-27 01:15:16,140 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:15:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-27 01:15:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-27 01:15:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-27 01:15:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-27 01:15:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-27 01:15:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-27 01:15:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-27 01:15:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-27 01:15:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-27 01:15:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-27 01:15:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-27 01:15:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-27 01:15:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-27 01:15:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-27 01:15:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-27 01:15:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-27 01:15:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-27 01:15:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-27 01:15:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-27 01:15:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-27 01:15:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-27 01:15:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-27 01:15:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-27 01:15:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-27 01:15:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-27 01:15:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-27 01:15:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-27 01:15:16,145 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-27 01:15:16,145 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-27 01:15:16,145 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-27 01:15:16,145 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-27 01:15:16,145 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-27 01:15:16,145 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-27 01:15:16,146 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-27 01:15:16,146 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-27 01:15:16,146 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-27 01:15:16,146 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-27 01:15:16,146 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-27 01:15:16,146 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-27 01:15:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-27 01:15:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-27 01:15:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-27 01:15:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-27 01:15:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-27 01:15:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-27 01:15:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-27 01:15:16,148 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-27 01:15:16,148 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-27 01:15:16,148 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-27 01:15:16,148 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-27 01:15:16,148 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-27 01:15:16,148 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-27 01:15:16,149 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 01:15:16,149 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 01:15:16,149 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-27 01:15:16,149 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 01:15:16,149 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-27 01:15:16,149 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-27 01:15:16,149 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-27 01:15:16,150 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-27 01:15:16,150 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-27 01:15:16,150 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:15:16,150 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-27 01:15:16,150 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-27 01:15:16,150 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-27 01:15:16,150 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 01:15:16,151 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-27 01:15:16,151 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-27 01:15:16,151 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-27 01:15:16,151 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-27 01:15:16,151 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-27 01:15:16,151 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-27 01:15:16,151 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-27 01:15:16,152 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-27 01:15:16,152 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-27 01:15:16,152 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-27 01:15:16,152 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-27 01:15:16,152 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-27 01:15:16,152 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-27 01:15:16,152 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-27 01:15:16,153 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-27 01:15:16,153 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-27 01:15:16,153 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-27 01:15:16,153 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-27 01:15:16,153 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-27 01:15:16,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-27 01:15:16,153 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-27 01:15:16,153 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-27 01:15:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-27 01:15:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-27 01:15:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-27 01:15:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-27 01:15:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-27 01:15:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-27 01:15:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-27 01:15:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-27 01:15:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-27 01:15:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-27 01:15:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-27 01:15:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-27 01:15:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-27 01:15:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-27 01:15:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-27 01:15:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-27 01:15:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-27 01:15:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:15:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 01:15:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 01:15:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:15:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:15:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 01:15:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 01:15:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 01:15:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 01:15:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-10-27 01:15:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-27 01:15:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 01:15:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-27 01:15:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-27 01:15:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-27 01:15:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 01:15:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-27 01:15:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-27 01:15:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-10-27 01:15:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-10-27 01:15:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-27 01:15:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-10-27 01:15:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-10-27 01:15:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-10-27 01:15:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:15:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 01:15:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-27 01:15:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-27 01:15:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 01:15:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-27 01:15:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:15:16,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:15:16,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:15:16,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 01:15:16,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:15:16,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:15:16,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:15:17,193 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:15:17,194 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 01:15:17,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:15:17 BoogieIcfgContainer [2020-10-27 01:15:17,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:15:17,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:15:17,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:15:17,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:15:17,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:15:14" (1/3) ... [2020-10-27 01:15:17,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a24dee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:15:17, skipping insertion in model container [2020-10-27 01:15:17,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:15" (2/3) ... [2020-10-27 01:15:17,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a24dee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:15:17, skipping insertion in model container [2020-10-27 01:15:17,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:15:17" (3/3) ... [2020-10-27 01:15:17,206 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-1.i [2020-10-27 01:15:17,221 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:15:17,277 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:15:17,293 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:15:17,324 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:15:17,324 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:15:17,324 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:15:17,325 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:15:17,325 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:15:17,325 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:15:17,325 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:15:17,325 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:15:17,347 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states. [2020-10-27 01:15:17,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-27 01:15:17,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:17,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:15:17,356 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:17,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:17,363 INFO L82 PathProgramCache]: Analyzing trace with hash -338212697, now seen corresponding path program 1 times [2020-10-27 01:15:17,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:17,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777103018] [2020-10-27 01:15:17,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:17,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:17,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:17,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:18,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:18,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 01:15:18,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 01:15:18,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1330 [2020-10-27 01:15:18,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:18,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:15:18,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 01:15:18,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 01:15:18,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 01:15:19,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:19,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 01:15:19,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:19,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:19,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 01:15:19,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:15:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 01:15:19,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:19,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:15:19,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:19,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:19,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 01:15:19,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:19,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 01:15:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:19,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:19,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:19,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:19,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:15:19,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 01:15:19,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:19,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:19,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:15:19,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:19,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:19,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:15:19,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777103018] [2020-10-27 01:15:19,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:15:19,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 01:15:19,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002381060] [2020-10-27 01:15:19,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 01:15:19,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:15:19,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 01:15:19,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:15:19,199 INFO L87 Difference]: Start difference. First operand 121 states. Second operand 5 states. [2020-10-27 01:15:19,633 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-27 01:15:20,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:15:20,845 INFO L93 Difference]: Finished difference Result 279 states and 355 transitions. [2020-10-27 01:15:20,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 01:15:20,849 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-27 01:15:20,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:15:20,868 INFO L225 Difference]: With dead ends: 279 [2020-10-27 01:15:20,868 INFO L226 Difference]: Without dead ends: 153 [2020-10-27 01:15:20,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:15:20,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-27 01:15:20,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 119. [2020-10-27 01:15:20,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-27 01:15:20,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 133 transitions. [2020-10-27 01:15:20,969 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 133 transitions. Word has length 26 [2020-10-27 01:15:20,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:15:20,970 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 133 transitions. [2020-10-27 01:15:20,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 01:15:20,970 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 133 transitions. [2020-10-27 01:15:20,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-27 01:15:20,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:20,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:15:20,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:15:20,972 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:20,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:20,973 INFO L82 PathProgramCache]: Analyzing trace with hash -388511731, now seen corresponding path program 1 times [2020-10-27 01:15:20,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:20,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [979344169] [2020-10-27 01:15:20,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:21,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:21,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:21,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-27 01:15:21,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:21,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-27 01:15:21,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 01:15:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 01:15:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 01:15:21,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:21,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:21,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:21,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:21,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:21,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:21,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 01:15:21,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:21,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:21,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:21,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 01:15:21,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:21,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:15:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:21,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:21,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:21,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 01:15:21,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:21,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:15:21,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:21,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:21,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:21,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 01:15:21,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:21,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 01:15:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:21,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:21,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:21,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 01:15:21,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:21,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-27 01:15:21,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:21,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 01:15:21,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:21,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 01:15:21,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:21,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:21,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:21,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:21,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:21,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:21,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 01:15:21,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:21,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:15:21,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:21,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:15:21,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:21,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:15:21,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [979344169] [2020-10-27 01:15:21,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:15:21,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 01:15:21,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510610848] [2020-10-27 01:15:21,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 01:15:21,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:15:21,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 01:15:21,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-27 01:15:21,849 INFO L87 Difference]: Start difference. First operand 119 states and 133 transitions. Second operand 9 states. [2020-10-27 01:15:22,650 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 01:15:22,806 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 01:15:24,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:15:24,612 INFO L93 Difference]: Finished difference Result 153 states and 171 transitions. [2020-10-27 01:15:24,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 01:15:24,617 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-10-27 01:15:24,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:15:24,619 INFO L225 Difference]: With dead ends: 153 [2020-10-27 01:15:24,619 INFO L226 Difference]: Without dead ends: 133 [2020-10-27 01:15:24,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2020-10-27 01:15:24,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-27 01:15:24,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 115. [2020-10-27 01:15:24,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-27 01:15:24,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 128 transitions. [2020-10-27 01:15:24,648 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 128 transitions. Word has length 30 [2020-10-27 01:15:24,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:15:24,649 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 128 transitions. [2020-10-27 01:15:24,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 01:15:24,649 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 128 transitions. [2020-10-27 01:15:24,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-27 01:15:24,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:24,651 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:15:24,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:15:24,652 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:24,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:24,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1293576892, now seen corresponding path program 1 times [2020-10-27 01:15:24,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:24,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615882574] [2020-10-27 01:15:24,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:24,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:24,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:24,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 01:15:24,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:24,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-27 01:15:24,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:24,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:24,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-27 01:15:24,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:15:24,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:24,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:24,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:24,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:24,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:24,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:24,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 01:15:24,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:24,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:24,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:24,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:24,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:24,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:15:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:24,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:24,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:25,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 01:15:25,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:25,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:15:25,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:25,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:25,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:25,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:25,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:25,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 01:15:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:25,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:25,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:25,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:25,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:25,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:15:25,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:25,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:25,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:25,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:25,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:25,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:25,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:25,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:25,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:25,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:25,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:15:25,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:25,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:25,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:25,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:25,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:25,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 01:15:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:25,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:25,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:25,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 01:15:25,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:25,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 01:15:25,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:25,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:25,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:25,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:25,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:25,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:25,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:25,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:15:25,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:25,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:25,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:25,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:25,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:25,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 01:15:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:25,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:25,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:25,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:15:25,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:25,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 01:15:25,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:15:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:15:25,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:25,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 01:15:25,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615882574] [2020-10-27 01:15:25,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:15:25,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 01:15:25,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006059821] [2020-10-27 01:15:25,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 01:15:25,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:15:25,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 01:15:25,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:15:25,169 INFO L87 Difference]: Start difference. First operand 115 states and 128 transitions. Second operand 7 states. [2020-10-27 01:15:26,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:15:26,518 INFO L93 Difference]: Finished difference Result 138 states and 157 transitions. [2020-10-27 01:15:26,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 01:15:26,519 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2020-10-27 01:15:26,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:15:26,522 INFO L225 Difference]: With dead ends: 138 [2020-10-27 01:15:26,523 INFO L226 Difference]: Without dead ends: 134 [2020-10-27 01:15:26,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-27 01:15:26,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-27 01:15:26,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 119. [2020-10-27 01:15:26,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-27 01:15:26,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 134 transitions. [2020-10-27 01:15:26,548 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 134 transitions. Word has length 48 [2020-10-27 01:15:26,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:15:26,548 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 134 transitions. [2020-10-27 01:15:26,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 01:15:26,548 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 134 transitions. [2020-10-27 01:15:26,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-27 01:15:26,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:26,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:15:26,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 01:15:26,551 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:26,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:26,553 INFO L82 PathProgramCache]: Analyzing trace with hash 71711021, now seen corresponding path program 1 times [2020-10-27 01:15:26,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:26,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658512462] [2020-10-27 01:15:26,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:26,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:27,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:27,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 01:15:27,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:27,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 997 [2020-10-27 01:15:27,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:27,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 01:15:27,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 01:15:27,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-27 01:15:27,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:27,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:27,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:27,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:27,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:27,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:27,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 01:15:27,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:27,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:27,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:27,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 01:15:27,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:27,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:15:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:27,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:27,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:27,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 01:15:27,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:27,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:15:27,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:27,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:27,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:27,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 01:15:27,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:28,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 01:15:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:28,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:28,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:28,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:15:28,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:28,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 01:15:28,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:15:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:28,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 01:15:28,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:28,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:28,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:28,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:28,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:28,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:28,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:15:28,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:28,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:28,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:28,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:15:28,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:28,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 01:15:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:28,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:28,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:28,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 01:15:28,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:28,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-27 01:15:28,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 01:15:28,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:15:28,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 01:15:28,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:28,857 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-27 01:15:28,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 01:15:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:29,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:29,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:29,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:29,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:29,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-10-27 01:15:29,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:29,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:15:29,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:15:29,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 01:15:29,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1