/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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 [2020-09-25 05:32:37,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:32:37,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:32:37,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:32:37,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:32:37,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:32:37,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:32:37,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:32:37,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:32:37,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:32:37,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:32:37,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:32:37,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:32:37,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:32:37,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:32:37,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:32:37,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:32:37,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:32:37,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:32:37,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:32:37,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:32:37,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:32:37,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:32:37,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:32:37,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:32:37,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:32:37,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:32:37,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:32:37,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:32:37,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:32:37,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:32:37,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:32:37,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:32:37,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:32:37,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:32:37,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:32:37,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:32:37,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:32:37,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:32:37,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:32:37,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:32:37,770 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 [2020-09-25 05:32:37,817 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:32:37,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:32:37,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:32:37,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:32:37,821 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:32:37,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:32:37,822 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:32:37,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:32:37,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:32:37,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:32:37,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:32:37,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:32:37,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:32:37,825 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:32:37,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:32:37,825 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:32:37,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:32:37,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:32:37,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:32:37,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:32:37,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:32:37,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:32:37,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:32:37,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:32:37,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:32:37,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:32:37,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:32:37,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:32:37,828 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:32:37,828 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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:32:38,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:32:38,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:32:38,294 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:32:38,296 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:32:38,296 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:32:38,298 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-09-25 05:32:38,399 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d73347c7c/4e2acb14d0e0451db29fde5a78a7d138/FLAG35190a74a [2020-09-25 05:32:39,011 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:32:39,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-09-25 05:32:39,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d73347c7c/4e2acb14d0e0451db29fde5a78a7d138/FLAG35190a74a [2020-09-25 05:32:39,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d73347c7c/4e2acb14d0e0451db29fde5a78a7d138 [2020-09-25 05:32:39,299 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:32:39,305 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:32:39,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:39,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:32:39,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:32:39,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:39" (1/1) ... [2020-09-25 05:32:39,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10b0f1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:39, skipping insertion in model container [2020-09-25 05:32:39,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:39" (1/1) ... [2020-09-25 05:32:39,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:32:39,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:32:39,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:39,942 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:32:39,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:40,064 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:32:40,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:40 WrapperNode [2020-09-25 05:32:40,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:40,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:32:40,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:32:40,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:32:40,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:40" (1/1) ... [2020-09-25 05:32:40,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:40" (1/1) ... [2020-09-25 05:32:40,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:40" (1/1) ... [2020-09-25 05:32:40,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:40" (1/1) ... [2020-09-25 05:32:40,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:40" (1/1) ... [2020-09-25 05:32:40,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:40" (1/1) ... [2020-09-25 05:32:40,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:40" (1/1) ... [2020-09-25 05:32:40,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:32:40,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:32:40,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:32:40,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:32:40,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:40" (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 [2020-09-25 05:32:40,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:32:40,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:32:40,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 05:32:40,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 05:32:40,240 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 05:32:40,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 05:32:40,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-25 05:32:40,241 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-25 05:32:40,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-25 05:32:40,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-25 05:32:40,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-25 05:32:40,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-25 05:32:40,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-25 05:32:40,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-25 05:32:40,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-25 05:32:40,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 05:32:40,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-25 05:32:40,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-25 05:32:40,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-25 05:32:40,243 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-25 05:32:40,243 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:32:40,244 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 05:32:40,244 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 05:32:40,244 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 05:32:40,244 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 05:32:40,244 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 05:32:40,244 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 05:32:40,245 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 05:32:40,245 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 05:32:40,245 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 05:32:40,245 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 05:32:40,245 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 05:32:40,245 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 05:32:40,246 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 05:32:40,246 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 05:32:40,246 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 05:32:40,246 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 05:32:40,246 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 05:32:40,246 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 05:32:40,247 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 05:32:40,247 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 05:32:40,247 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 05:32:40,247 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 05:32:40,247 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 05:32:40,247 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 05:32:40,248 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 05:32:40,248 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 05:32:40,248 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 05:32:40,248 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 05:32:40,248 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 05:32:40,248 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 05:32:40,249 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 05:32:40,249 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 05:32:40,249 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 05:32:40,249 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 05:32:40,249 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 05:32:40,249 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 05:32:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 05:32:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 05:32:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 05:32:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 05:32:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 05:32:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 05:32:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 05:32:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 05:32:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 05:32:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 05:32:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 05:32:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 05:32:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 05:32:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 05:32:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 05:32:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 05:32:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:32:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 05:32:40,253 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 05:32:40,253 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:32:40,253 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 05:32:40,253 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 05:32:40,253 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 05:32:40,253 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 05:32:40,254 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 05:32:40,254 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 05:32:40,254 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 05:32:40,254 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 05:32:40,254 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 05:32:40,254 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 05:32:40,255 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 05:32:40,255 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 05:32:40,255 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 05:32:40,255 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 05:32:40,255 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 05:32:40,255 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 05:32:40,256 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 05:32:40,256 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 05:32:40,256 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 05:32:40,256 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 05:32:40,256 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 05:32:40,256 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 05:32:40,257 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 05:32:40,257 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 05:32:40,257 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 05:32:40,257 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 05:32:40,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 05:32:40,257 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 05:32:40,257 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 05:32:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 05:32:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 05:32:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 05:32:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 05:32:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 05:32:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 05:32:40,259 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 05:32:40,259 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 05:32:40,259 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 05:32:40,259 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 05:32:40,259 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 05:32:40,259 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 05:32:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 05:32:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 05:32:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 05:32:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 05:32:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 05:32:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:32:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 05:32:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:32:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 05:32:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:32:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-25 05:32:40,262 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-25 05:32:40,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:32:40,262 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-25 05:32:40,262 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-25 05:32:40,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-25 05:32:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:32:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-25 05:32:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-25 05:32:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-25 05:32:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-25 05:32:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 05:32:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-25 05:32:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-25 05:32:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-25 05:32:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:32:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:32:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:32:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-25 05:32:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:32:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:32:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:32:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 05:32:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:32:41,078 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:32:41,079 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 05:32:41,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:41 BoogieIcfgContainer [2020-09-25 05:32:41,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:32:41,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:32:41,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:32:41,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:32:41,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:32:39" (1/3) ... [2020-09-25 05:32:41,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3956db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:41, skipping insertion in model container [2020-09-25 05:32:41,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:40" (2/3) ... [2020-09-25 05:32:41,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3956db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:41, skipping insertion in model container [2020-09-25 05:32:41,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:41" (3/3) ... [2020-09-25 05:32:41,095 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2020-09-25 05:32:41,106 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:32:41,117 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:32:41,136 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:32:41,163 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:32:41,163 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:32:41,178 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:32:41,178 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:32:41,178 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:32:41,178 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:32:41,178 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:32:41,178 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:32:41,205 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2020-09-25 05:32:41,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-25 05:32:41,215 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:41,216 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] [2020-09-25 05:32:41,216 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:41,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:41,223 INFO L82 PathProgramCache]: Analyzing trace with hash -773204813, now seen corresponding path program 1 times [2020-09-25 05:32:41,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:41,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160772213] [2020-09-25 05:32:41,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:41,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:41,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:42,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:42,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 05:32:42,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:42,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 731 [2020-09-25 05:32:42,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:42,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:42,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:32:42,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-25 05:32:42,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:32:42,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:32:42,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:42,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:42,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:42,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:32:42,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:42,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 05:32:42,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:42,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:42,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:42,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:42,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:42,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:42,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 05:32:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:42,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:42,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:42,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:32:42,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:42,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 05:32:42,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:42,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:42,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:32:42,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 05:32:42,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:32:42,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:42,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:32:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:42,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:42,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:42,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:32:42,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:42,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 05:32:42,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:42,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:42,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:32:42,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:42,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 05:32:42,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:42,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 05:32:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:42,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:42,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:42,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:32:42,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:42,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 05:32:42,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:42,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:42,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:42,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:32:42,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:42,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:42,474 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 05:32:42,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160772213] [2020-09-25 05:32:42,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:32:42,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 05:32:42,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450684534] [2020-09-25 05:32:42,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:32:42,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:42,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:32:42,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:32:42,508 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 6 states. [2020-09-25 05:32:43,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:43,143 INFO L93 Difference]: Finished difference Result 184 states and 205 transitions. [2020-09-25 05:32:43,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:32:43,145 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-09-25 05:32:43,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:43,161 INFO L225 Difference]: With dead ends: 184 [2020-09-25 05:32:43,161 INFO L226 Difference]: Without dead ends: 95 [2020-09-25 05:32:43,166 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 [2020-09-25 05:32:43,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-25 05:32:43,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2020-09-25 05:32:43,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-25 05:32:43,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2020-09-25 05:32:43,234 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 50 [2020-09-25 05:32:43,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:43,235 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2020-09-25 05:32:43,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:32:43,235 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2020-09-25 05:32:43,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 05:32:43,239 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:43,239 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] [2020-09-25 05:32:43,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:32:43,240 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:43,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:43,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1962919132, now seen corresponding path program 1 times [2020-09-25 05:32:43,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:43,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [175507517] [2020-09-25 05:32:43,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:43,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:43,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:44,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:48,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:48,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 05:32:48,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:32:48,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:32:48,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:48,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:48,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:32:48,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 05:32:48,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:32:48,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:48,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:48,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:48,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:48,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:32:48,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:48,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:32:48,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:48,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:48,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:48,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:48,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:48,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:48,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 05:32:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:48,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:48,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:48,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 05:32:48,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:48,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 05:32:48,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:48,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:48,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:48,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:48,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:48,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:48,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:32:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:48,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:48,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:48,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 05:32:48,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:48,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:32:48,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:48,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:48,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:48,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:48,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:48,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:48,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 05:32:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:48,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:48,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:48,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:32:48,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:48,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 05:32:48,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:48,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:48,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:32:48,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:48,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 05:32:48,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:48,466 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 05:32:48,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [175507517] [2020-09-25 05:32:48,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:48,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:32:48,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927921333] [2020-09-25 05:32:48,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:32:48,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:48,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:32:48,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:32:48,470 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 6 states. [2020-09-25 05:32:48,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:48,857 INFO L93 Difference]: Finished difference Result 102 states and 106 transitions. [2020-09-25 05:32:48,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 05:32:48,857 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-09-25 05:32:48,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:48,860 INFO L225 Difference]: With dead ends: 102 [2020-09-25 05:32:48,860 INFO L226 Difference]: Without dead ends: 95 [2020-09-25 05:32:48,861 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 [2020-09-25 05:32:48,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-25 05:32:48,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2020-09-25 05:32:48,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-25 05:32:48,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2020-09-25 05:32:48,874 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 53 [2020-09-25 05:32:48,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:48,875 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2020-09-25 05:32:48,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:32:48,875 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2020-09-25 05:32:48,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 05:32:48,877 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:48,877 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] [2020-09-25 05:32:48,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:32:48,878 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:48,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:48,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1545179603, now seen corresponding path program 1 times [2020-09-25 05:32:48,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:48,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444879085] [2020-09-25 05:32:48,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:48,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:49,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:52,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:32:52,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:52,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3631 [2020-09-25 05:32:52,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:52,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:52,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:32:52,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 05:32:52,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 05:32:52,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:32:52,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:52,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:52,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:32:52,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:52,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 05:32:52,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:52,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:52,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:52,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:52,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:32:52,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:52,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 05:32:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:52,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:52,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 05:32:52,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:52,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-25 05:32:52,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:52,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:52,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:32:52,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:32:52,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 05:32:52,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:52,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:32:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:52,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:52,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 05:32:52,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:52,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 05:32:52,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:52,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:52,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:52,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:52,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 05:32:52,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:52,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 05:32:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:52,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:52,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 05:32:52,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:52,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 05:32:52,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:52,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:52,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:32:52,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 05:32:52,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 05:32:52,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:53,198 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 05:32:53,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444879085] [2020-09-25 05:32:53,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:53,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 05:32:53,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808053028] [2020-09-25 05:32:53,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 05:32:53,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:53,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 05:32:53,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:32:53,201 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand 11 states. [2020-09-25 05:32:53,598 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-09-25 05:32:53,815 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2020-09-25 05:32:53,977 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2020-09-25 05:32:54,704 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-09-25 05:32:54,921 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2020-09-25 05:32:55,079 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2020-09-25 05:32:55,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:55,218 INFO L93 Difference]: Finished difference Result 147 states and 154 transitions. [2020-09-25 05:32:55,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 05:32:55,219 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-09-25 05:32:55,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:55,221 INFO L225 Difference]: With dead ends: 147 [2020-09-25 05:32:55,221 INFO L226 Difference]: Without dead ends: 132 [2020-09-25 05:32:55,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=227, Invalid=529, Unknown=0, NotChecked=0, Total=756 [2020-09-25 05:32:55,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-25 05:32:55,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 101. [2020-09-25 05:32:55,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 05:32:55,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 103 transitions. [2020-09-25 05:32:55,236 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 103 transitions. Word has length 56 [2020-09-25 05:32:55,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:55,236 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 103 transitions. [2020-09-25 05:32:55,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 05:32:55,237 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 103 transitions. [2020-09-25 05:32:55,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 05:32:55,239 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:55,240 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] [2020-09-25 05:32:55,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:32:55,240 INFO L427 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:55,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:55,241 INFO L82 PathProgramCache]: Analyzing trace with hash -2001576911, now seen corresponding path program 1 times [2020-09-25 05:32:55,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:55,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [295185336] [2020-09-25 05:32:55,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:32:55,291 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:32:55,291 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:32:55,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:32:55,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:32:55 BoogieIcfgContainer [2020-09-25 05:32:55,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:32:55,322 INFO L168 Benchmark]: Toolchain (without parser) took 16020.93 ms. Allocated memory was 141.0 MB in the beginning and 328.7 MB in the end (delta: 187.7 MB). Free memory was 102.7 MB in the beginning and 169.4 MB in the end (delta: -66.7 MB). Peak memory consumption was 121.0 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:55,323 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 05:32:55,323 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.60 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 167.3 MB in the end (delta: -65.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:55,324 INFO L168 Benchmark]: Boogie Preprocessor took 85.91 ms. Allocated memory is still 205.5 MB. Free memory was 167.3 MB in the beginning and 164.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:55,325 INFO L168 Benchmark]: RCFGBuilder took 932.60 ms. Allocated memory is still 205.5 MB. Free memory was 164.0 MB in the beginning and 99.4 MB in the end (delta: 64.6 MB). Peak memory consumption was 64.6 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:55,326 INFO L168 Benchmark]: TraceAbstraction took 14233.20 ms. Allocated memory was 205.5 MB in the beginning and 328.7 MB in the end (delta: 123.2 MB). Free memory was 99.4 MB in the beginning and 169.4 MB in the end (delta: -70.0 MB). Peak memory consumption was 53.2 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:55,330 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 759.60 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 167.3 MB in the end (delta: -65.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.91 ms. Allocated memory is still 205.5 MB. Free memory was 167.3 MB in the beginning and 164.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 932.60 ms. Allocated memory is still 205.5 MB. Free memory was 164.0 MB in the beginning and 99.4 MB in the end (delta: 64.6 MB). Peak memory consumption was 64.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14233.20 ms. Allocated memory was 205.5 MB in the beginning and 328.7 MB in the end (delta: 123.2 MB). Free memory was 99.4 MB in the beginning and 169.4 MB in the end (delta: -70.0 MB). Peak memory consumption was 53.2 MB. 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: 14.1s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 236 SDtfs, 659 SDslu, 206 SDs, 0 SdLazy, 678 SolverSat, 110 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=3, 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, 47 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 245 NumberOfCodeBlocks, 245 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 38953 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 33/35 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...