/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 SingleStatement --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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_add-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:02:03,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:02:03,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:02:03,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:02:03,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:02:03,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:02:03,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:02:03,648 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:02:03,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:02:03,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:02:03,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:02:03,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:02:03,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:02:03,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:02:03,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:02:03,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:02:03,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:02:03,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:02:03,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:02:03,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:02:03,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:02:03,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:02:03,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:02:03,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:02:03,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:02:03,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:02:03,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:02:03,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:02:03,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:02:03,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:02:03,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:02:03,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:02:03,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:02:03,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:02:03,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:02:03,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:02:03,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:02:03,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:02:03,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:02:03,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:02:03,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:02:03,689 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 [2020-09-24 16:02:03,717 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:02:03,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:02:03,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:02:03,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:02:03,719 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:02:03,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:02:03,720 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:02:03,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:02:03,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:02:03,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:02:03,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:02:03,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:02:03,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:02:03,721 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:02:03,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:02:03,721 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:02:03,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:02:03,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:02:03,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:02:03,722 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:02:03,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:02:03,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:02:03,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:02:03,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:02:03,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:02:03,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:02:03,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:02:03,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:02:03,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:02:03,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> SingleStatement 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;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:02:04,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:02:04,228 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:02:04,232 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:02:04,234 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:02:04,234 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:02:04,236 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-09-24 16:02:04,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c969ffe1/feac6f549c1440289b6fc8944ff3d1d1/FLAG4bf5c91a3 [2020-09-24 16:02:04,944 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:02:04,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-09-24 16:02:04,965 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c969ffe1/feac6f549c1440289b6fc8944ff3d1d1/FLAG4bf5c91a3 [2020-09-24 16:02:05,196 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c969ffe1/feac6f549c1440289b6fc8944ff3d1d1 [2020-09-24 16:02:05,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:02:05,217 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:02:05,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:02:05,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:02:05,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:02:05,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:02:05" (1/1) ... [2020-09-24 16:02:05,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31bd816e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:02:05, skipping insertion in model container [2020-09-24 16:02:05,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:02:05" (1/1) ... [2020-09-24 16:02:05,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:02:05,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:02:05,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:02:05,862 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:02:05,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:02:05,994 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:02:05,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:02:05 WrapperNode [2020-09-24 16:02:05,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:02:05,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:02:05,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:02:05,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:02:06,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:02:05" (1/1) ... [2020-09-24 16:02:06,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:02:05" (1/1) ... [2020-09-24 16:02:06,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:02:05" (1/1) ... [2020-09-24 16:02:06,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:02:05" (1/1) ... [2020-09-24 16:02:06,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:02:05" (1/1) ... [2020-09-24 16:02:06,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:02:05" (1/1) ... [2020-09-24 16:02:06,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:02:05" (1/1) ... [2020-09-24 16:02:06,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:02:06,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:02:06,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:02:06,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:02:06,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:02:05" (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 [2020-09-24 16:02:06,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:02:06,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:02:06,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-24 16:02:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-24 16:02:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 16:02:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 16:02:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-24 16:02:06,167 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-24 16:02:06,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-24 16:02:06,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-24 16:02:06,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-24 16:02:06,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-24 16:02:06,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-24 16:02:06,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-24 16:02:06,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-24 16:02:06,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-24 16:02:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-24 16:02:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-24 16:02:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-24 16:02:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-24 16:02:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:02:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-24 16:02:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-24 16:02:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-24 16:02:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-24 16:02:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-24 16:02:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-24 16:02:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-24 16:02:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-24 16:02:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-24 16:02:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-24 16:02:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-24 16:02:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-24 16:02:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-24 16:02:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-24 16:02:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-24 16:02:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-24 16:02:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-24 16:02:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-24 16:02:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-24 16:02:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-24 16:02:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-24 16:02:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-24 16:02:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-24 16:02:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-24 16:02:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-24 16:02:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-24 16:02:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-24 16:02:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-24 16:02:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-24 16:02:06,175 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-24 16:02:06,175 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-24 16:02:06,175 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-24 16:02:06,175 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-24 16:02:06,175 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-24 16:02:06,175 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-24 16:02:06,176 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-24 16:02:06,176 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-24 16:02:06,176 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-24 16:02:06,176 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-24 16:02:06,176 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-24 16:02:06,176 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-24 16:02:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-24 16:02:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-24 16:02:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-24 16:02:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-24 16:02:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-24 16:02:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-24 16:02:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-24 16:02:06,178 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-24 16:02:06,178 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-24 16:02:06,178 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-24 16:02:06,178 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-24 16:02:06,178 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:02:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 16:02:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 16:02:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:02:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 16:02:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-24 16:02:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 16:02:06,180 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-24 16:02:06,180 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 16:02:06,180 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-24 16:02:06,180 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-24 16:02:06,180 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 16:02:06,180 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-24 16:02:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-24 16:02:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-24 16:02:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-24 16:02:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-24 16:02:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-24 16:02:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-24 16:02:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-24 16:02:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-24 16:02:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-24 16:02:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-24 16:02:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-24 16:02:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-24 16:02:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-24 16:02:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-24 16:02:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-24 16:02:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-24 16:02:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-24 16:02:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-24 16:02:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-24 16:02:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-24 16:02:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-24 16:02:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-24 16:02:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-24 16:02:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-24 16:02:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-24 16:02:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-24 16:02:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-24 16:02:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-24 16:02:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-24 16:02:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-24 16:02:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-24 16:02:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-24 16:02:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-24 16:02:06,186 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-24 16:02:06,186 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-24 16:02:06,186 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-24 16:02:06,186 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-24 16:02:06,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:02:06,187 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 16:02:06,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:02:06,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 16:02:06,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:02:06,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-24 16:02:06,187 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-24 16:02:06,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:02:06,188 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-24 16:02:06,188 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-24 16:02:06,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-24 16:02:06,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:02:06,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-24 16:02:06,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-24 16:02:06,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-24 16:02:06,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-24 16:02:06,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-24 16:02:06,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-24 16:02:06,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-24 16:02:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-24 16:02:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:02:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:02:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:02:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-24 16:02:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:02:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:02:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:02:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 16:02:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:02:06,898 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:02:06,898 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-24 16:02:06,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:02:06 BoogieIcfgContainer [2020-09-24 16:02:06,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:02:06,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:02:06,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:02:06,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:02:06,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:02:05" (1/3) ... [2020-09-24 16:02:06,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1da9f067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:02:06, skipping insertion in model container [2020-09-24 16:02:06,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:02:05" (2/3) ... [2020-09-24 16:02:06,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1da9f067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:02:06, skipping insertion in model container [2020-09-24 16:02:06,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:02:06" (3/3) ... [2020-09-24 16:02:06,914 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2020-09-24 16:02:06,924 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:02:06,936 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:02:06,956 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:02:06,984 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:02:06,984 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:02:06,984 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:02:06,984 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:02:06,984 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:02:06,984 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:02:06,985 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:02:06,985 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:02:07,010 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2020-09-24 16:02:07,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 16:02:07,021 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:02:07,022 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1] [2020-09-24 16:02:07,023 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:02:07,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:02:07,031 INFO L82 PathProgramCache]: Analyzing trace with hash -773204813, now seen corresponding path program 1 times [2020-09-24 16:02:07,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:02:07,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2128090925] [2020-09-24 16:02:07,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:02:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:02:07,264 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:02:07,264 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:02:07,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:02:07,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:02:07,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 16:02:07,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:02:07,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 16:02:07,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:02:07,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:02:07,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-24 16:02:07,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:02:07,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:02:07,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:02:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:02:07,377 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:02:07,377 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:02:07,378 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:02:07,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:02:07,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:02:07,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:02:07,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:02:07,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:02:07,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:02:07,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:02:07,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:02:07,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:02:07,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:02:07,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:02:07,458 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:02:07,458 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:02:07,458 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:02:07,459 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:02:07,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:02:07,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:02:07,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 16:02:07,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:02:07,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:02:07,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 16:02:07,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:02:07,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:02:07,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:02:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:02:07,554 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:02:07,555 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:02:07,555 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:02:07,555 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:02:07,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:02:07,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:02:07,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:02:07,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:02:07,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:02:07,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:02:07,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:02:07,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:02:07,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:02:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:02:07,601 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:02:07,602 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:02:07,602 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:02:07,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:02:07,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:02:07,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:02:07,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:02:07,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:02:07,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:02:07,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 16:02:07,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:02:07,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:02:07,636 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-24 16:02:07,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2128090925] [2020-09-24 16:02:07,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:02:07,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 16:02:07,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631255338] [2020-09-24 16:02:07,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:02:07,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:02:07,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:02:07,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:02:07,679 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 6 states. [2020-09-24 16:02:08,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:02:08,342 INFO L93 Difference]: Finished difference Result 184 states and 205 transitions. [2020-09-24 16:02:08,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 16:02:08,344 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-09-24 16:02:08,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:02:08,361 INFO L225 Difference]: With dead ends: 184 [2020-09-24 16:02:08,361 INFO L226 Difference]: Without dead ends: 95 [2020-09-24 16:02:08,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:02:08,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-24 16:02:08,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2020-09-24 16:02:08,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-24 16:02:08,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2020-09-24 16:02:08,437 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 50 [2020-09-24 16:02:08,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:02:08,438 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2020-09-24 16:02:08,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:02:08,438 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2020-09-24 16:02:08,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 16:02:08,442 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:02:08,443 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:02:08,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:02:08,444 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:02:08,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:02:08,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1962919132, now seen corresponding path program 1 times [2020-09-24 16:02:08,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:02:08,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [847743774] [2020-09-24 16:02:08,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:02:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:02:08,500 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:02:08,500 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:02:08,500 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:02:08,501 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:02:08,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 16:02:08,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:02:08,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:02:08,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:02:08,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:02:08,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-24 16:02:08,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:02:08,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 16:02:08,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:02:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:02:08,581 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:02:08,582 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:02:08,582 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:02:08,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:02:08,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:02:08,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:02:08,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:02:08,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:02:08,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:02:08,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:02:08,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:02:08,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:02:08,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:02:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:02:08,615 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:02:08,615 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:02:08,616 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:02:08,616 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:02:08,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 16:02:08,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:02:08,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:02:08,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:02:08,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:02:08,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:02:08,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:02:08,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:02:08,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:02:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:02:08,632 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:02:08,632 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:02:08,633 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:02:08,633 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:02:08,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 16:02:08,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:02:08,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:02:08,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:02:08,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:02:08,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:02:08,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:02:08,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:02:08,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 16:02:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:02:08,655 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:02:08,676 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:02:08,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:02:08,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:02:08,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:02:08,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:02:08,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 16:02:08,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:02:08,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:02:08,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:02:08,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:02:08,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:02:08,729 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 16:02:08,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [847743774] [2020-09-24 16:02:08,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:02:08,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:02:08,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754372922] [2020-09-24 16:02:08,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:02:08,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:02:08,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:02:08,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:02:08,733 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 6 states. [2020-09-24 16:02:09,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:02:09,152 INFO L93 Difference]: Finished difference Result 102 states and 106 transitions. [2020-09-24 16:02:09,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 16:02:09,153 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-09-24 16:02:09,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:02:09,156 INFO L225 Difference]: With dead ends: 102 [2020-09-24 16:02:09,156 INFO L226 Difference]: Without dead ends: 95 [2020-09-24 16:02:09,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:02:09,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-24 16:02:09,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2020-09-24 16:02:09,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-24 16:02:09,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2020-09-24 16:02:09,172 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 53 [2020-09-24 16:02:09,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:02:09,172 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2020-09-24 16:02:09,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:02:09,173 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2020-09-24 16:02:09,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-24 16:02:09,175 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:02:09,176 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1] [2020-09-24 16:02:09,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:02:09,176 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:02:09,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:02:09,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1545179603, now seen corresponding path program 1 times [2020-09-24 16:02:09,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:02:09,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731548030] [2020-09-24 16:02:09,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:02:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:02:09,367 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 16:02:09,368 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -1 [2020-09-24 16:02:09,368 FATAL L256 erpolLogProxyWrapper]: Difference in width: 1 [2020-09-24 16:02:09,368 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:02:09,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 16:02:09,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:02:09,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-24 16:02:09,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:02:09,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 16:02:09,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 16:02:09,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 16:02:09,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:02:09,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:02:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:02:09,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:02:09,450 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:02:09,450 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:02:09,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:02:09,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:02:09,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:02:09,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:02:09,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:02:09,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:02:09,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:02:09,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:02:09,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:02:09,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:02:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:02:09,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:02:09,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:02:09,522 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:02:09,522 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:02:09,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 16:02:09,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:02:09,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 16:02:09,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:02:09,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 16:02:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:02:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 16:02:09,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:02:09,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:02:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:02:09,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:02:09,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:02:09,605 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:02:09,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:02:09,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 16:02:09,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:02:09,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 16:02:09,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:02:09,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:02:09,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:02:09,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 16:02:09,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:02:09,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 16:02:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:02:09,887 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:02:09,887 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:02:09,888 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:02:09,888 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:02:09,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 16:02:09,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:02:09,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:02:09,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:02:09,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:02:09,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-24 16:02:09,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:02:09,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:02:09,911 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 16:02:09,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731548030] [2020-09-24 16:02:09,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:02:09,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 16:02:09,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706693045] [2020-09-24 16:02:09,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 16:02:09,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:02:09,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 16:02:09,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-24 16:02:09,915 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand 13 states. [2020-09-24 16:02:10,554 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-09-24 16:02:10,735 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-09-24 16:02:11,523 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2020-09-24 16:02:11,748 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-09-24 16:02:11,937 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-09-24 16:02:12,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:02:12,184 INFO L93 Difference]: Finished difference Result 180 states and 188 transitions. [2020-09-24 16:02:12,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 16:02:12,185 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 56 [2020-09-24 16:02:12,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:02:12,187 INFO L225 Difference]: With dead ends: 180 [2020-09-24 16:02:12,187 INFO L226 Difference]: Without dead ends: 104 [2020-09-24 16:02:12,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=271, Invalid=851, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 16:02:12,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-09-24 16:02:12,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 92. [2020-09-24 16:02:12,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-24 16:02:12,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2020-09-24 16:02:12,201 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 56 [2020-09-24 16:02:12,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:02:12,202 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2020-09-24 16:02:12,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 16:02:12,202 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2020-09-24 16:02:12,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 16:02:12,205 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:02:12,205 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, 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] [2020-09-24 16:02:12,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:02:12,206 INFO L427 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:02:12,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:02:12,206 INFO L82 PathProgramCache]: Analyzing trace with hash -2001576911, now seen corresponding path program 1 times [2020-09-24 16:02:12,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:02:12,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083576465] [2020-09-24 16:02:12,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:02:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 16:02:12,270 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 16:02:12,270 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 16:02:12,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:02:12,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:02:12 BoogieIcfgContainer [2020-09-24 16:02:12,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:02:12,302 INFO L168 Benchmark]: Toolchain (without parser) took 7088.98 ms. Allocated memory was 139.5 MB in the beginning and 296.2 MB in the end (delta: 156.8 MB). Free memory was 99.8 MB in the beginning and 229.7 MB in the end (delta: -129.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-09-24 16:02:12,303 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.3 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-24 16:02:12,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.36 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 99.0 MB in the beginning and 165.0 MB in the end (delta: -66.0 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-09-24 16:02:12,305 INFO L168 Benchmark]: Boogie Preprocessor took 87.58 ms. Allocated memory is still 202.9 MB. Free memory was 165.0 MB in the beginning and 162.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-09-24 16:02:12,306 INFO L168 Benchmark]: RCFGBuilder took 819.86 ms. Allocated memory is still 202.9 MB. Free memory was 162.1 MB in the beginning and 96.7 MB in the end (delta: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 7.1 GB. [2020-09-24 16:02:12,307 INFO L168 Benchmark]: TraceAbstraction took 5394.18 ms. Allocated memory was 202.9 MB in the beginning and 296.2 MB in the end (delta: 93.3 MB). Free memory was 96.7 MB in the beginning and 229.7 MB in the end (delta: -133.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 16:02:12,310 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.3 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 777.36 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 99.0 MB in the beginning and 165.0 MB in the end (delta: -66.0 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.58 ms. Allocated memory is still 202.9 MB. Free memory was 165.0 MB in the beginning and 162.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 819.86 ms. Allocated memory is still 202.9 MB. Free memory was 162.1 MB in the beginning and 96.7 MB in the end (delta: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5394.18 ms. Allocated memory was 202.9 MB in the beginning and 296.2 MB in the end (delta: 93.3 MB). Free memory was 96.7 MB in the beginning and 229.7 MB in the end (delta: -133.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 656]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L651] struct ldv_list_head s1 = { &(s1), &(s1) }; [L660] CALL foo() [L654] int j = __VERIFIER_nondet_int(); [L655] CALL ldv_set_add(j, &s1) [L622] CALL, EXPR ldv_is_in_set(new, s) [L640] struct ldv_list_element *m; [L641] EXPR (s)->next [L641] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L641] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L641] COND FALSE !(&m->list != (s)) [L646] return 0; [L622] RET, EXPR ldv_is_in_set(new, s) [L622] COND TRUE !ldv_is_in_set(new, s) [L623] struct ldv_list_element *le; [L624] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L624] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L624] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L625] le->e = new [L626] CALL ldv_list_add(&le->list, s) [L594] EXPR head->next [L594] CALL __ldv_list_add(new, head, head->next) [L582] next->prev = new [L583] new->next = next [L584] new->prev = prev [L585] prev->next = new [L594] RET __ldv_list_add(new, head, head->next) [L626] RET ldv_list_add(&le->list, s) [L655] RET ldv_set_add(j, &s1) [L656] CALL ldv_is_in_set(j, &s1) [L640] struct ldv_list_element *m; [L641] EXPR (s)->next [L641] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L641] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L641] COND TRUE &m->list != (s) [L642] EXPR m->e [L642] COND TRUE m->e == e [L643] return 1; [L656] RET ldv_is_in_set(j, &s1) [L656] COND TRUE ldv_is_in_set(j, &s1) [L656] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 181 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 246 SDtfs, 673 SDslu, 232 SDs, 0 SdLazy, 847 SolverSat, 113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 28 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 245 NumberOfCodeBlocks, 245 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 40445 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 21/35 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...