/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 -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 0.1.25-5644d1e-m [2020-08-19 00:21:59,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 00:21:59,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 00:21:59,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 00:21:59,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 00:21:59,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 00:21:59,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 00:21:59,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 00:21:59,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 00:21:59,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 00:21:59,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 00:21:59,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 00:21:59,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 00:21:59,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 00:21:59,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 00:21:59,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 00:21:59,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 00:21:59,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 00:21:59,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 00:21:59,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 00:21:59,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 00:21:59,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 00:21:59,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 00:21:59,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 00:21:59,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 00:21:59,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 00:21:59,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 00:21:59,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 00:21:59,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 00:21:59,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 00:21:59,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 00:21:59,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 00:21:59,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 00:21:59,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 00:21:59,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 00:21:59,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 00:21:59,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 00:21:59,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 00:21:59,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 00:21:59,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 00:21:59,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 00:21:59,622 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 [2020-08-19 00:21:59,664 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 00:21:59,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 00:21:59,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 00:21:59,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 00:21:59,667 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 00:21:59,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 00:21:59,667 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 00:21:59,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 00:21:59,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 00:21:59,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 00:21:59,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 00:21:59,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 00:21:59,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 00:21:59,670 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 00:21:59,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 00:21:59,670 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 00:21:59,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 00:21:59,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 00:21:59,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 00:21:59,671 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 00:21:59,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 00:21:59,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 00:21:59,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 00:21:59,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 00:21:59,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 00:21:59,672 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 00:21:59,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 00:21:59,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 00:21:59,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 00:21:59,673 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; [2020-08-19 00:22:00,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 00:22:00,013 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 00:22:00,016 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 00:22:00,018 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 00:22:00,018 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 00:22:00,019 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-08-19 00:22:00,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b91148c1/d566a06ee7684a669e7e17361a55e35a/FLAG39122d383 [2020-08-19 00:22:00,626 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 00:22:00,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-08-19 00:22:00,652 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b91148c1/d566a06ee7684a669e7e17361a55e35a/FLAG39122d383 [2020-08-19 00:22:00,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b91148c1/d566a06ee7684a669e7e17361a55e35a [2020-08-19 00:22:00,935 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 00:22:00,937 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 00:22:00,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 00:22:00,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 00:22:00,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 00:22:00,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:22:00" (1/1) ... [2020-08-19 00:22:00,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c48730d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:22:00, skipping insertion in model container [2020-08-19 00:22:00,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:22:00" (1/1) ... [2020-08-19 00:22:00,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 00:22:00,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 00:22:01,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:22:01,526 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 00:22:01,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:22:01,646 INFO L208 MainTranslator]: Completed translation [2020-08-19 00:22:01,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:22:01 WrapperNode [2020-08-19 00:22:01,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 00:22:01,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 00:22:01,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 00:22:01,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 00:22:01,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:22:01" (1/1) ... [2020-08-19 00:22:01,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:22:01" (1/1) ... [2020-08-19 00:22:01,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:22:01" (1/1) ... [2020-08-19 00:22:01,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:22:01" (1/1) ... [2020-08-19 00:22:01,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:22:01" (1/1) ... [2020-08-19 00:22:01,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:22:01" (1/1) ... [2020-08-19 00:22:01,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:22:01" (1/1) ... [2020-08-19 00:22:01,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 00:22:01,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 00:22:01,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 00:22:01,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 00:22:01,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:22:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 00:22:01,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 00:22:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 00:22:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-08-19 00:22:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-08-19 00:22:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 00:22:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-19 00:22:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-08-19 00:22:01,803 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-08-19 00:22:01,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-08-19 00:22:01,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-08-19 00:22:01,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-08-19 00:22:01,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-08-19 00:22:01,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-08-19 00:22:01,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-08-19 00:22:01,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-08-19 00:22:01,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-08-19 00:22:01,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-08-19 00:22:01,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-08-19 00:22:01,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-08-19 00:22:01,805 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-08-19 00:22:01,805 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 00:22:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-08-19 00:22:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-08-19 00:22:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-19 00:22:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-19 00:22:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-19 00:22:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-19 00:22:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-19 00:22:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-19 00:22:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-19 00:22:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-19 00:22:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-19 00:22:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-19 00:22:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-19 00:22:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-19 00:22:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-19 00:22:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-19 00:22:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-19 00:22:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-19 00:22:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-19 00:22:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-19 00:22:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-19 00:22:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-19 00:22:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-19 00:22:01,809 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-19 00:22:01,809 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-19 00:22:01,809 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-19 00:22:01,809 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-19 00:22:01,809 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-19 00:22:01,809 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-19 00:22:01,809 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-19 00:22:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-19 00:22:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-19 00:22:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-19 00:22:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-19 00:22:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-19 00:22:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-19 00:22:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-19 00:22:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-19 00:22:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-19 00:22:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-19 00:22:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-19 00:22:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-19 00:22:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-19 00:22:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-19 00:22:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-19 00:22:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-19 00:22:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-19 00:22:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-19 00:22:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-19 00:22:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-19 00:22:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-19 00:22:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-19 00:22:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 00:22:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-19 00:22:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-19 00:22:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 00:22:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-19 00:22:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-19 00:22:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-19 00:22:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-19 00:22:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 00:22:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-19 00:22:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-19 00:22:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-19 00:22:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-19 00:22:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-19 00:22:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-19 00:22:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-19 00:22:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-19 00:22:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-19 00:22:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-19 00:22:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-19 00:22:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-19 00:22:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-19 00:22:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-19 00:22:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-19 00:22:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-19 00:22:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-19 00:22:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-19 00:22:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-19 00:22:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-19 00:22:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-19 00:22:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-19 00:22:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-19 00:22:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-19 00:22:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-19 00:22:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-19 00:22:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-19 00:22:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-19 00:22:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-19 00:22:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-19 00:22:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-19 00:22:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-19 00:22:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-19 00:22:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-19 00:22:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-19 00:22:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-19 00:22:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-19 00:22:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-19 00:22:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-19 00:22:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-19 00:22:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-19 00:22:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 00:22:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 00:22:01,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 00:22:01,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-19 00:22:01,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 00:22:01,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-08-19 00:22:01,821 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-08-19 00:22:01,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 00:22:01,822 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-08-19 00:22:01,822 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-08-19 00:22:01,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-08-19 00:22:01,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 00:22:01,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-08-19 00:22:01,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-08-19 00:22:01,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-08-19 00:22:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-08-19 00:22:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-08-19 00:22:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-08-19 00:22:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-08-19 00:22:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-08-19 00:22:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 00:22:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 00:22:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 00:22:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-08-19 00:22:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 00:22:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 00:22:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 00:22:01,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-19 00:22:01,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 00:22:02,510 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 00:22:02,511 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-19 00:22:02,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:22:02 BoogieIcfgContainer [2020-08-19 00:22:02,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 00:22:02,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 00:22:02,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 00:22:02,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 00:22:02,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 12:22:00" (1/3) ... [2020-08-19 00:22:02,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5183b1ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:22:02, skipping insertion in model container [2020-08-19 00:22:02,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:22:01" (2/3) ... [2020-08-19 00:22:02,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5183b1ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:22:02, skipping insertion in model container [2020-08-19 00:22:02,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:22:02" (3/3) ... [2020-08-19 00:22:02,525 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2020-08-19 00:22:02,536 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 00:22:02,545 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 00:22:02,560 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 00:22:02,585 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 00:22:02,585 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 00:22:02,586 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 00:22:02,586 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 00:22:02,586 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 00:22:02,586 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 00:22:02,586 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 00:22:02,587 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 00:22:02,607 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-08-19 00:22:02,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-08-19 00:22:02,615 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:22:02,616 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] [2020-08-19 00:22:02,616 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:22:02,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:22:02,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1154845074, now seen corresponding path program 1 times [2020-08-19 00:22:02,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:22:02,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279194206] [2020-08-19 00:22:02,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:22:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:02,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:22:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:02,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 00:22:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:02,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:22:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:02,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 00:22:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:02,938 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-19 00:22:02,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279194206] [2020-08-19 00:22:02,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:22:02,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 00:22:02,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995122954] [2020-08-19 00:22:02,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 00:22:02,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:22:02,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 00:22:02,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 00:22:02,968 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 4 states. [2020-08-19 00:22:03,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:22:03,208 INFO L93 Difference]: Finished difference Result 108 states and 126 transitions. [2020-08-19 00:22:03,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 00:22:03,210 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-08-19 00:22:03,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:22:03,221 INFO L225 Difference]: With dead ends: 108 [2020-08-19 00:22:03,221 INFO L226 Difference]: Without dead ends: 53 [2020-08-19 00:22:03,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-19 00:22:03,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-08-19 00:22:03,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 46. [2020-08-19 00:22:03,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-08-19 00:22:03,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2020-08-19 00:22:03,283 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 28 [2020-08-19 00:22:03,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:22:03,283 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2020-08-19 00:22:03,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 00:22:03,286 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2020-08-19 00:22:03,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-08-19 00:22:03,289 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:22:03,290 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] [2020-08-19 00:22:03,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 00:22:03,290 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:22:03,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:22:03,291 INFO L82 PathProgramCache]: Analyzing trace with hash 221547774, now seen corresponding path program 1 times [2020-08-19 00:22:03,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:22:03,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222586922] [2020-08-19 00:22:03,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:22:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:03,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:22:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:03,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 00:22:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:03,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:22:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:03,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 00:22:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:03,512 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 00:22:03,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222586922] [2020-08-19 00:22:03,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:22:03,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-19 00:22:03,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811150817] [2020-08-19 00:22:03,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 00:22:03,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:22:03,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 00:22:03,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 00:22:03,516 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 6 states. [2020-08-19 00:22:03,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:22:03,847 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2020-08-19 00:22:03,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 00:22:03,848 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-08-19 00:22:03,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:22:03,851 INFO L225 Difference]: With dead ends: 71 [2020-08-19 00:22:03,852 INFO L226 Difference]: Without dead ends: 57 [2020-08-19 00:22:03,853 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 [2020-08-19 00:22:03,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-08-19 00:22:03,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2020-08-19 00:22:03,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-08-19 00:22:03,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-08-19 00:22:03,867 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 28 [2020-08-19 00:22:03,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:22:03,867 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-08-19 00:22:03,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 00:22:03,868 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-08-19 00:22:03,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-08-19 00:22:03,869 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:22:03,869 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] [2020-08-19 00:22:03,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 00:22:03,870 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:22:03,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:22:03,871 INFO L82 PathProgramCache]: Analyzing trace with hash -2088028185, now seen corresponding path program 1 times [2020-08-19 00:22:03,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:22:03,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138238396] [2020-08-19 00:22:03,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:22:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:03,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:22:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:03,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 00:22:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:03,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:22:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:03,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 00:22:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:04,019 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-19 00:22:04,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138238396] [2020-08-19 00:22:04,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:22:04,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 00:22:04,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160805734] [2020-08-19 00:22:04,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 00:22:04,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:22:04,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 00:22:04,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 00:22:04,024 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 6 states. [2020-08-19 00:22:04,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:22:04,364 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2020-08-19 00:22:04,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 00:22:04,364 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-08-19 00:22:04,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:22:04,366 INFO L225 Difference]: With dead ends: 63 [2020-08-19 00:22:04,366 INFO L226 Difference]: Without dead ends: 57 [2020-08-19 00:22:04,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-08-19 00:22:04,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-08-19 00:22:04,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2020-08-19 00:22:04,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-08-19 00:22:04,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2020-08-19 00:22:04,385 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 28 [2020-08-19 00:22:04,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:22:04,385 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2020-08-19 00:22:04,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 00:22:04,386 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2020-08-19 00:22:04,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-08-19 00:22:04,390 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:22:04,390 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] [2020-08-19 00:22:04,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 00:22:04,391 INFO L427 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:22:04,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:22:04,392 INFO L82 PathProgramCache]: Analyzing trace with hash -513424880, now seen corresponding path program 1 times [2020-08-19 00:22:04,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:22:04,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549440988] [2020-08-19 00:22:04,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:22:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:04,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:22:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:04,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 00:22:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:04,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:22:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:04,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 00:22:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:22:04,611 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-19 00:22:04,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549440988] [2020-08-19 00:22:04,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:22:04,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 00:22:04,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838135500] [2020-08-19 00:22:04,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 00:22:04,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:22:04,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 00:22:04,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 00:22:04,614 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 8 states. [2020-08-19 00:22:05,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:22:05,281 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2020-08-19 00:22:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 00:22:05,283 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-08-19 00:22:05,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:22:05,285 INFO L225 Difference]: With dead ends: 82 [2020-08-19 00:22:05,285 INFO L226 Difference]: Without dead ends: 69 [2020-08-19 00:22:05,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2020-08-19 00:22:05,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-08-19 00:22:05,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 52. [2020-08-19 00:22:05,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-08-19 00:22:05,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2020-08-19 00:22:05,295 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 28 [2020-08-19 00:22:05,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:22:05,296 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2020-08-19 00:22:05,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 00:22:05,296 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2020-08-19 00:22:05,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-08-19 00:22:05,298 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:22:05,298 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] [2020-08-19 00:22:05,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 00:22:05,298 INFO L427 AbstractCegarLoop]: === Iteration 5 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:22:05,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:22:05,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1823590536, now seen corresponding path program 1 times [2020-08-19 00:22:05,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:22:05,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [792724761] [2020-08-19 00:22:05,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:22:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 00:22:05,338 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 00:22:05,338 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 00:22:05,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 00:22:05,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 12:22:05 BoogieIcfgContainer [2020-08-19 00:22:05,361 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 00:22:05,364 INFO L168 Benchmark]: Toolchain (without parser) took 4426.17 ms. Allocated memory was 148.9 MB in the beginning and 243.8 MB in the end (delta: 94.9 MB). Free memory was 102.2 MB in the beginning and 158.7 MB in the end (delta: -56.5 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB. [2020-08-19 00:22:05,365 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 148.9 MB. Free memory was 122.2 MB in the beginning and 121.8 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-08-19 00:22:05,366 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.05 ms. Allocated memory was 148.9 MB in the beginning and 205.5 MB in the end (delta: 56.6 MB). Free memory was 101.8 MB in the beginning and 167.7 MB in the end (delta: -65.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2020-08-19 00:22:05,367 INFO L168 Benchmark]: Boogie Preprocessor took 92.54 ms. Allocated memory is still 205.5 MB. Free memory was 167.7 MB in the beginning and 164.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2020-08-19 00:22:05,367 INFO L168 Benchmark]: RCFGBuilder took 775.15 ms. Allocated memory is still 205.5 MB. Free memory was 164.0 MB in the beginning and 107.2 MB in the end (delta: 56.8 MB). Peak memory consumption was 56.8 MB. Max. memory is 7.1 GB. [2020-08-19 00:22:05,368 INFO L168 Benchmark]: TraceAbstraction took 2844.32 ms. Allocated memory was 205.5 MB in the beginning and 243.8 MB in the end (delta: 38.3 MB). Free memory was 106.3 MB in the beginning and 158.7 MB in the end (delta: -52.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-19 00:22:05,372 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 148.9 MB. Free memory was 122.2 MB in the beginning and 121.8 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 709.05 ms. Allocated memory was 148.9 MB in the beginning and 205.5 MB in the end (delta: 56.6 MB). Free memory was 101.8 MB in the beginning and 167.7 MB in the end (delta: -65.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.54 ms. Allocated memory is still 205.5 MB. Free memory was 167.7 MB in the beginning and 164.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 775.15 ms. Allocated memory is still 205.5 MB. Free memory was 164.0 MB in the beginning and 107.2 MB in the end (delta: 56.8 MB). Peak memory consumption was 56.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2844.32 ms. Allocated memory was 205.5 MB in the beginning and 243.8 MB in the end (delta: 38.3 MB). Free memory was 106.3 MB in the beginning and 158.7 MB in the end (delta: -52.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 656]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L651] struct ldv_list_head s1 = { &(s1), &(s1) }; [L660] CALL foo() [L654] int j = __VERIFIER_nondet_int(); [L655] CALL ldv_set_add(j, &s1) [L622] CALL, EXPR ldv_is_in_set(new, s) [L640] struct ldv_list_element *m; [L641] EXPR (s)->next [L641] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L641] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L641] COND FALSE !(&m->list != (s)) [L646] return 0; [L622] RET, EXPR ldv_is_in_set(new, s) [L622] COND TRUE !ldv_is_in_set(new, s) [L623] struct ldv_list_element *le; [L624] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L624] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L624] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L625] le->e = new [L626] CALL ldv_list_add(&le->list, s) [L594] EXPR head->next [L594] CALL __ldv_list_add(new, head, head->next) [L582] next->prev = new [L583] new->next = next [L584] new->prev = prev [L585] prev->next = new [L594] RET __ldv_list_add(new, head, head->next) [L626] RET ldv_list_add(&le->list, s) [L655] RET ldv_set_add(j, &s1) [L656] CALL ldv_is_in_set(j, &s1) [L640] struct ldv_list_element *m; [L641] EXPR (s)->next [L641] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L641] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L641] COND TRUE &m->list != (s) [L642] EXPR m->e [L642] COND TRUE m->e == e [L643] return 1; [L656] RET ldv_is_in_set(j, &s1) [L656] COND TRUE ldv_is_in_set(j, &s1) [L656] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 99 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 171 SDtfs, 281 SDslu, 141 SDs, 0 SdLazy, 427 SolverSat, 146 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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, 4 MinimizatonAttempts, 38 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 12906 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 17/19 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...