/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-sets/test_add-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:39:54,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:39:54,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:39:55,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:39:55,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:39:55,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:39:55,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:39:55,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:39:55,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:39:55,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:39:55,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:39:55,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:39:55,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:39:55,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:39:55,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:39:55,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:39:55,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:39:55,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:39:55,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:39:55,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:39:55,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:39:55,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:39:55,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:39:55,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:39:55,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:39:55,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:39:55,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:39:55,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:39:55,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:39:55,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:39:55,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:39:55,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:39:55,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:39:55,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:39:55,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:39:55,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:39:55,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:39:55,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:39:55,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:39:55,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:39:55,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:39:55,099 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 14:39:55,154 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:39:55,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:39:55,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:39:55,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:39:55,156 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:39:55,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:39:55,157 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:39:55,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:39:55,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:39:55,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:39:55,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:39:55,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:39:55,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:39:55,160 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:39:55,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:39:55,160 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:39:55,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:39:55,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:39:55,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:39:55,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:39:55,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:39:55,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:39:55,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:39:55,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:39:55,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:39:55,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:39:55,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:39:55,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:39:55,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:39:55,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:39:55,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:39:55,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:39:55,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:39:55,571 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:39:55,571 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:39:55,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-10-28 14:39:55,664 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/409b08dc9/898f09de1e4e4b51a6a4d1a923166cc4/FLAG7173f6b91 [2020-10-28 14:39:56,411 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:39:56,412 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-10-28 14:39:56,435 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/409b08dc9/898f09de1e4e4b51a6a4d1a923166cc4/FLAG7173f6b91 [2020-10-28 14:39:56,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/409b08dc9/898f09de1e4e4b51a6a4d1a923166cc4 [2020-10-28 14:39:56,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:39:56,619 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:39:56,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:39:56,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:39:56,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:39:56,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:39:56" (1/1) ... [2020-10-28 14:39:56,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1491456a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:39:56, skipping insertion in model container [2020-10-28 14:39:56,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:39:56" (1/1) ... [2020-10-28 14:39:56,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:39:56,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:39:57,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:39:57,186 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:39:57,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:39:57,323 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:39:57,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:39:57 WrapperNode [2020-10-28 14:39:57,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:39:57,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:39:57,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:39:57,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:39:57,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:39:57" (1/1) ... [2020-10-28 14:39:57,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:39:57" (1/1) ... [2020-10-28 14:39:57,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:39:57" (1/1) ... [2020-10-28 14:39:57,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:39:57" (1/1) ... [2020-10-28 14:39:57,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:39:57" (1/1) ... [2020-10-28 14:39:57,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:39:57" (1/1) ... [2020-10-28 14:39:57,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:39:57" (1/1) ... [2020-10-28 14:39:57,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:39:57,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:39:57,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:39:57,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:39:57,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:39:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:39:57,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:39:57,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:39:57,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-28 14:39:57,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-28 14:39:57,511 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:39:57,512 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 14:39:57,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 14:39:57,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-10-28 14:39:57,512 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-28 14:39:57,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-28 14:39:57,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-28 14:39:57,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-28 14:39:57,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-28 14:39:57,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-28 14:39:57,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-10-28 14:39:57,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-10-28 14:39:57,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-28 14:39:57,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-10-28 14:39:57,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-10-28 14:39:57,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-10-28 14:39:57,514 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-28 14:39:57,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:39:57,515 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-28 14:39:57,515 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-28 14:39:57,515 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-28 14:39:57,515 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-28 14:39:57,515 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-28 14:39:57,515 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-28 14:39:57,515 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-28 14:39:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-28 14:39:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-28 14:39:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-28 14:39:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-28 14:39:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-28 14:39:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-28 14:39:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-28 14:39:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-28 14:39:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-28 14:39:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-28 14:39:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-28 14:39:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-28 14:39:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-28 14:39:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-28 14:39:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-28 14:39:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-28 14:39:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-28 14:39:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-28 14:39:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-28 14:39:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-28 14:39:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-28 14:39:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-28 14:39:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-28 14:39:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-28 14:39:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-28 14:39:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-28 14:39:57,520 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-28 14:39:57,520 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-28 14:39:57,520 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-28 14:39:57,520 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-28 14:39:57,520 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-28 14:39:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-28 14:39:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-28 14:39:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-28 14:39:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-28 14:39:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-28 14:39:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-28 14:39:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-28 14:39:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-28 14:39:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-28 14:39:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-28 14:39:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-28 14:39:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-28 14:39:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-28 14:39:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-28 14:39:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 14:39:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-28 14:39:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-28 14:39:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 14:39:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-28 14:39:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-28 14:39:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-28 14:39:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-28 14:39:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:39:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-28 14:39:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-28 14:39:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 14:39:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-28 14:39:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-28 14:39:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-28 14:39:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-28 14:39:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-28 14:39:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-28 14:39:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-28 14:39:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-28 14:39:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-28 14:39:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-28 14:39:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-28 14:39:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-28 14:39:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-28 14:39:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-28 14:39:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-28 14:39:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-28 14:39:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-28 14:39:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-28 14:39:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-28 14:39:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-28 14:39:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-28 14:39:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-28 14:39:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-28 14:39:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-28 14:39:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-28 14:39:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-28 14:39:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-28 14:39:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-28 14:39:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-28 14:39:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-28 14:39:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-28 14:39:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-28 14:39:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-28 14:39:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-28 14:39:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-28 14:39:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-28 14:39:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-28 14:39:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-28 14:39:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:39:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 14:39:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 14:39:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:39:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:39:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 14:39:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 14:39:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 14:39:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 14:39:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-10-28 14:39:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-28 14:39:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 14:39:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-28 14:39:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-28 14:39:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-28 14:39:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 14:39:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-28 14:39:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-28 14:39:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-10-28 14:39:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-10-28 14:39:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-28 14:39:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-10-28 14:39:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-10-28 14:39:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-10-28 14:39:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:39:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:39:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:39:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-28 14:39:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:39:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:39:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:39:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 14:39:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:39:58,337 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:39:58,337 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-28 14:39:58,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:39:58 BoogieIcfgContainer [2020-10-28 14:39:58,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:39:58,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:39:58,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:39:58,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:39:58,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:39:56" (1/3) ... [2020-10-28 14:39:58,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d825d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:39:58, skipping insertion in model container [2020-10-28 14:39:58,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:39:57" (2/3) ... [2020-10-28 14:39:58,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d825d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:39:58, skipping insertion in model container [2020-10-28 14:39:58,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:39:58" (3/3) ... [2020-10-28 14:39:58,349 INFO L111 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2020-10-28 14:39:58,361 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:39:58,367 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:39:58,381 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:39:58,408 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:39:58,408 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:39:58,408 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:39:58,408 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:39:58,408 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:39:58,408 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:39:58,408 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:39:58,408 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:39:58,426 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-10-28 14:39:58,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-28 14:39:58,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:39:58,435 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 14:39:58,435 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:39:58,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:39:58,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1016243908, now seen corresponding path program 1 times [2020-10-28 14:39:58,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:39:58,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450864115] [2020-10-28 14:39:58,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:39:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:39:58,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:39:58,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:39:59,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:39:59,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 14:39:59,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:39:59,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 774 [2020-10-28 14:39:59,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:39:59,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:39:59,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 14:39:59,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-28 14:39:59,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 14:39:59,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 14:39:59,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:39:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:39:59,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:39:59,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:39:59,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:39:59,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:39:59,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 14:39:59,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:39:59,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:39:59,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:39:59,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:39:59,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:39:59,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:39:59,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 14:39:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:39:59,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:39:59,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:39:59,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 14:39:59,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:39:59,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 14:39:59,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:39:59,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:39:59,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 14:39:59,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 14:39:59,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 14:39:59,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:39:59,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:39:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:39:59,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:39:59,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:39:59,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:39:59,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:39:59,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 14:39:59,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:39:59,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:39:59,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 14:39:59,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:39:59,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 14:39:59,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:39:59,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 14:39:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:39:59,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:39:59,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:39:59,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:39:59,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:39:59,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 14:39:59,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:39:59,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:39:59,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:39:59,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 14:39:59,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:39:59,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:39:59,649 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-28 14:39:59,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450864115] [2020-10-28 14:39:59,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 14:39:59,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 14:39:59,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288228061] [2020-10-28 14:39:59,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 14:39:59,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:39:59,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 14:39:59,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 14:39:59,680 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 6 states. [2020-10-28 14:40:00,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:40:00,214 INFO L93 Difference]: Finished difference Result 118 states and 143 transitions. [2020-10-28 14:40:00,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 14:40:00,216 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-28 14:40:00,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:40:00,229 INFO L225 Difference]: With dead ends: 118 [2020-10-28 14:40:00,229 INFO L226 Difference]: Without dead ends: 58 [2020-10-28 14:40:00,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-28 14:40:00,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-28 14:40:00,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2020-10-28 14:40:00,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-28 14:40:00,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2020-10-28 14:40:00,293 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 30 [2020-10-28 14:40:00,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:40:00,293 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2020-10-28 14:40:00,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 14:40:00,294 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2020-10-28 14:40:00,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-28 14:40:00,296 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:40:00,296 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 14:40:00,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:40:00,296 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:40:00,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:40:00,297 INFO L82 PathProgramCache]: Analyzing trace with hash -20648475, now seen corresponding path program 1 times [2020-10-28 14:40:00,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:40:00,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440946038] [2020-10-28 14:40:00,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:40:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:40:00,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:40:00,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:40:00,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:40:02,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:40:02,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 14:40:02,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 14:40:02,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2060 [2020-10-28 14:40:02,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:40:02,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:40:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 14:40:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-28 14:40:02,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 14:40:02,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:40:02,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:40:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:40:02,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:40:02,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:40:02,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:40:02,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:40:02,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 14:40:02,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:40:02,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:40:02,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:40:02,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:40:02,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:40:02,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:40:02,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 14:40:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:40:02,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:40:02,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:40:02,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 14:40:02,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:40:02,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 14:40:02,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:40:02,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:40:02,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:40:02,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:40:02,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:40:02,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:40:02,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:40:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:40:02,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:40:02,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:40:02,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:40:02,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:40:02,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 14:40:02,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:40:02,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:40:02,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:40:02,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:40:02,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:40:02,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:40:02,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 14:40:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:40:02,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:40:02,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:40:02,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:40:02,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:40:02,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 14:40:02,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:40:02,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:40:02,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 14:40:02,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:40:02,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 14:40:02,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:40:02,543 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-28 14:40:02,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440946038] [2020-10-28 14:40:02,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:40:02,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 14:40:02,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037119719] [2020-10-28 14:40:02,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 14:40:02,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:40:02,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 14:40:02,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 14:40:02,547 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 6 states. [2020-10-28 14:40:02,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:40:02,918 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2020-10-28 14:40:02,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 14:40:02,919 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-28 14:40:02,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:40:02,921 INFO L225 Difference]: With dead ends: 66 [2020-10-28 14:40:02,921 INFO L226 Difference]: Without dead ends: 58 [2020-10-28 14:40:02,922 INFO L677 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 [2020-10-28 14:40:02,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-28 14:40:02,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2020-10-28 14:40:02,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-28 14:40:02,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2020-10-28 14:40:02,934 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 30 [2020-10-28 14:40:02,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:40:02,935 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2020-10-28 14:40:02,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 14:40:02,935 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2020-10-28 14:40:02,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-28 14:40:02,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:40:02,937 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 14:40:02,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:40:02,937 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:40:02,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:40:02,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1344639438, now seen corresponding path program 1 times [2020-10-28 14:40:02,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:40:02,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881992672] [2020-10-28 14:40:02,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:40:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:40:02,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:40:03,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:40:03,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:40:03,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 14:40:03,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:40:03,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 711 [2020-10-28 14:40:03,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:40:03,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:40:03,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 14:40:03,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 14:40:03,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 14:40:03,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:40:03,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:40:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:40:03,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:40:03,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:40:03,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:40:03,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:40:03,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 14:40:03,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:40:03,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:40:03,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 14:40:03,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:40:03,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 14:40:03,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:40:03,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 14:40:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:40:03,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:40:03,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:40:03,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:40:03,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 14:40:03,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:40:03,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 14:40:03,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:40:03,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:40:03,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 14:40:03,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:40:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 14:40:03,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:40:03,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:40:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:40:03,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:40:03,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:40:03,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:40:03,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:40:03,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 14:40:03,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:40:03,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:40:03,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 14:40:03,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:40:03,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 14:40:03,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:40:03,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 14:40:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:40:03,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:40:03,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:40:03,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:40:03,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:40:03,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 14:40:03,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:40:03,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:40:03,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 14:40:03,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 14:40:03,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 14:40:03,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:40:03,972 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 14:40:03,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881992672] [2020-10-28 14:40:03,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:40:03,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 14:40:03,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960154395] [2020-10-28 14:40:03,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 14:40:03,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:40:03,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 14:40:03,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 14:40:03,975 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 8 states. [2020-10-28 14:40:04,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:40:04,911 INFO L93 Difference]: Finished difference Result 86 states and 93 transitions. [2020-10-28 14:40:04,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 14:40:04,912 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2020-10-28 14:40:04,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:40:04,914 INFO L225 Difference]: With dead ends: 86 [2020-10-28 14:40:04,914 INFO L226 Difference]: Without dead ends: 71 [2020-10-28 14:40:04,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2020-10-28 14:40:04,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-28 14:40:04,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 54. [2020-10-28 14:40:04,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-28 14:40:04,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2020-10-28 14:40:04,928 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 30 [2020-10-28 14:40:04,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:40:04,928 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2020-10-28 14:40:04,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 14:40:04,928 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2020-10-28 14:40:04,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-28 14:40:04,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:40:04,930 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:40:04,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 14:40:04,930 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:40:04,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:40:04,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1605817482, now seen corresponding path program 1 times [2020-10-28 14:40:04,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:40:04,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1673759446] [2020-10-28 14:40:04,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:40:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 14:40:04,974 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 14:40:04,974 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 14:40:04,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 14:40:04,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 02:40:04 BoogieIcfgContainer [2020-10-28 14:40:04,999 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 14:40:05,002 INFO L168 Benchmark]: Toolchain (without parser) took 8387.40 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 125.4 MB in the beginning and 168.6 MB in the end (delta: -43.2 MB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. [2020-10-28 14:40:05,003 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:40:05,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.68 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 98.6 MB in the end (delta: 26.1 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-28 14:40:05,005 INFO L168 Benchmark]: Boogie Preprocessor took 94.06 ms. Allocated memory is still 151.0 MB. Free memory was 98.6 MB in the beginning and 95.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:40:05,006 INFO L168 Benchmark]: RCFGBuilder took 918.98 ms. Allocated memory is still 151.0 MB. Free memory was 95.5 MB in the beginning and 101.0 MB in the end (delta: -5.5 MB). Peak memory consumption was 25.6 MB. Max. memory is 8.0 GB. [2020-10-28 14:40:05,007 INFO L168 Benchmark]: TraceAbstraction took 6658.51 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 100.5 MB in the beginning and 168.6 MB in the end (delta: -68.1 MB). Peak memory consumption was 5.3 MB. Max. memory is 8.0 GB. [2020-10-28 14:40:05,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 703.68 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 98.6 MB in the end (delta: 26.1 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 94.06 ms. Allocated memory is still 151.0 MB. Free memory was 98.6 MB in the beginning and 95.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 918.98 ms. Allocated memory is still 151.0 MB. Free memory was 95.5 MB in the beginning and 101.0 MB in the end (delta: -5.5 MB). Peak memory consumption was 25.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6658.51 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 100.5 MB in the beginning and 168.6 MB in the end (delta: -68.1 MB). Peak memory consumption was 5.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 562]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L662] struct ldv_list_head s1 = { &(s1), &(s1) }; [L671] CALL foo() [L665] int j = __VERIFIER_nondet_int(); [L666] CALL ldv_set_add(j, &s1) [L633] CALL, EXPR ldv_is_in_set(new, s) [L651] struct ldv_list_element *m; [L652] EXPR (s)->next [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L652] COND FALSE !(&m->list != (s)) [L657] return 0; [L633] RET, EXPR ldv_is_in_set(new, s) [L633] COND TRUE !ldv_is_in_set(new, s) [L634] struct ldv_list_element *le; [L635] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L576] void *ptr = malloc(size); [L577] CALL assume_abort_if_not(ptr!=0) [L565] COND FALSE !(!cond) [L577] RET assume_abort_if_not(ptr!=0) [L578] return ptr; [L635] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L635] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L636] le->e = new [L637] CALL ldv_list_add(&le->list, s) [L605] EXPR head->next [L605] CALL __ldv_list_add(new, head, head->next) [L593] next->prev = new [L594] new->next = next [L595] new->prev = prev [L596] prev->next = new [L605] RET __ldv_list_add(new, head, head->next) [L637] RET ldv_list_add(&le->list, s) [L666] RET ldv_set_add(j, &s1) [L667] CALL ldv_is_in_set(j, &s1) [L651] struct ldv_list_element *m; [L652] EXPR (s)->next [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L652] COND TRUE &m->list != (s) [L653] EXPR m->e [L653] COND TRUE m->e == e [L654] return 1; [L667] RET ldv_is_in_set(j, &s1) [L667] COND TRUE ldv_is_in_set(j, &s1) [L667] CALL reach_error() [L562] COND FALSE !(0) [L562] __assert_fail ("0", "model/ldv.h", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.5s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 135 SDtfs, 244 SDslu, 150 SDs, 0 SdLazy, 403 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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, 29 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 13108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 12/14 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...