/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-properties/simple-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:13:02,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:13:02,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:13:02,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:13:02,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:13:02,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:13:02,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:13:02,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:13:02,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:13:02,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:13:02,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:13:02,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:13:02,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:13:02,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:13:02,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:13:02,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:13:02,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:13:02,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:13:02,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:13:02,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:13:02,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:13:02,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:13:02,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:13:02,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:13:02,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 17:13:02,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 17:13:02,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 17:13:02,770 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 17:13:02,770 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 17:13:02,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 17:13:02,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 17:13:02,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 17:13:02,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 17:13:02,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 17:13:02,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 17:13:02,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 17:13:02,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 17:13:02,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 17:13:02,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:13:02,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:13:02,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:13:02,779 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 17:13:02,795 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:13:02,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:13:02,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:13:02,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:13:02,798 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:13:02,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:13:02,798 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:13:02,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:13:02,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:13:02,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:13:02,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:13:02,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:13:02,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:13:02,800 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:13:02,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:13:02,800 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:13:02,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:13:02,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:13:02,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:13:02,801 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:13:02,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:13:02,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:13:02,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:13:02,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:13:02,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:13:02,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:13:02,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:13:02,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:13:02,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:13:02,803 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 17:13:03,130 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:13:03,153 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:13:03,157 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:13:03,162 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:13:03,162 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:13:03,165 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/simple-1.i [2020-07-20 17:13:03,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3197d3a6/03847ba69bd046089370a5e7ccb0582b/FLAG8ac4c136c [2020-07-20 17:13:03,861 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:13:03,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/simple-1.i [2020-07-20 17:13:03,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3197d3a6/03847ba69bd046089370a5e7ccb0582b/FLAG8ac4c136c [2020-07-20 17:13:04,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3197d3a6/03847ba69bd046089370a5e7ccb0582b [2020-07-20 17:13:04,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:13:04,109 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:13:04,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:13:04,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:13:04,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:13:04,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:13:04" (1/1) ... [2020-07-20 17:13:04,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c5d2c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:04, skipping insertion in model container [2020-07-20 17:13:04,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:13:04" (1/1) ... [2020-07-20 17:13:04,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:13:04,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:13:04,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:13:04,760 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:13:04,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:13:04,869 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:13:04,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:04 WrapperNode [2020-07-20 17:13:04,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:13:04,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:13:04,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:13:04,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:13:04,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:04" (1/1) ... [2020-07-20 17:13:04,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:04" (1/1) ... [2020-07-20 17:13:04,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:04" (1/1) ... [2020-07-20 17:13:04,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:04" (1/1) ... [2020-07-20 17:13:04,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:04" (1/1) ... [2020-07-20 17:13:04,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:04" (1/1) ... [2020-07-20 17:13:04,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:04" (1/1) ... [2020-07-20 17:13:04,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:13:04,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:13:04,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:13:04,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:13:04,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-20 17:13:05,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:13:05,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:13:05,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-20 17:13:05,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-20 17:13:05,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-07-20 17:13:05,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-07-20 17:13:05,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-07-20 17:13:05,019 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-07-20 17:13:05,019 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:13:05,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:13:05,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:13:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-20 17:13:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-20 17:13:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-20 17:13:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-20 17:13:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-20 17:13:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-20 17:13:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-20 17:13:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-20 17:13:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-20 17:13:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-20 17:13:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-20 17:13:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-20 17:13:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-20 17:13:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-20 17:13:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-20 17:13:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-20 17:13:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-20 17:13:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-20 17:13:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-07-20 17:13:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-07-20 17:13:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-07-20 17:13:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-20 17:13:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-20 17:13:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-20 17:13:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-20 17:13:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-20 17:13:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-20 17:13:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-20 17:13:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-20 17:13:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-20 17:13:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-20 17:13:05,027 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-20 17:13:05,027 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-20 17:13:05,027 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-20 17:13:05,027 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-20 17:13:05,027 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-20 17:13:05,027 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-20 17:13:05,027 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-20 17:13:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-20 17:13:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-20 17:13:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-20 17:13:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-20 17:13:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-20 17:13:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-20 17:13:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-20 17:13:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-20 17:13:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-20 17:13:05,030 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-20 17:13:05,030 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-20 17:13:05,030 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-20 17:13:05,030 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-20 17:13:05,031 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-20 17:13:05,031 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-20 17:13:05,031 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-20 17:13:05,031 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-20 17:13:05,031 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 17:13:05,032 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-20 17:13:05,032 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-20 17:13:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 17:13:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-20 17:13:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-20 17:13:05,034 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-20 17:13:05,034 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-20 17:13:05,034 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 17:13:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-20 17:13:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-20 17:13:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-20 17:13:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:13:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-20 17:13:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-20 17:13:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-20 17:13:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-20 17:13:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-20 17:13:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-20 17:13:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-20 17:13:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-20 17:13:05,038 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-20 17:13:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-20 17:13:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-20 17:13:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-20 17:13:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-20 17:13:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-20 17:13:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-20 17:13:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-20 17:13:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-20 17:13:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-20 17:13:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-20 17:13:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-20 17:13:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-20 17:13:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-20 17:13:05,041 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-20 17:13:05,041 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-20 17:13:05,041 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-20 17:13:05,041 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-20 17:13:05,041 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-20 17:13:05,042 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-20 17:13:05,042 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-20 17:13:05,042 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-20 17:13:05,042 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-20 17:13:05,042 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-20 17:13:05,042 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-20 17:13:05,042 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-20 17:13:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-20 17:13:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-20 17:13:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-20 17:13:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-20 17:13:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-20 17:13:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-07-20 17:13:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:13:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 17:13:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 17:13:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 17:13:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 17:13:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 17:13:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:13:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:13:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 17:13:05,459 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-07-20 17:13:05,616 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:13:05,617 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-20 17:13:05,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:13:05 BoogieIcfgContainer [2020-07-20 17:13:05,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:13:05,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:13:05,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:13:05,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:13:05,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:13:04" (1/3) ... [2020-07-20 17:13:05,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c0e74c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:13:05, skipping insertion in model container [2020-07-20 17:13:05,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:04" (2/3) ... [2020-07-20 17:13:05,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c0e74c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:13:05, skipping insertion in model container [2020-07-20 17:13:05,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:13:05" (3/3) ... [2020-07-20 17:13:05,634 INFO L109 eAbstractionObserver]: Analyzing ICFG simple-1.i [2020-07-20 17:13:05,648 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:13:05,659 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:13:05,677 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:13:05,709 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:13:05,710 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:13:05,710 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:13:05,710 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:13:05,711 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:13:05,711 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:13:05,711 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:13:05,711 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:13:05,739 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-07-20 17:13:05,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-20 17:13:05,747 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:13:05,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:13:05,750 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:13:05,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:13:05,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1710443637, now seen corresponding path program 1 times [2020-07-20 17:13:05,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:13:05,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204660308] [2020-07-20 17:13:05,772 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:13:05,965 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 17:13:05,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:13:05,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 17:13:05,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:13:06,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:13:06,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:13:06,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204660308] [2020-07-20 17:13:06,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:13:06,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 17:13:06,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142616370] [2020-07-20 17:13:06,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 17:13:06,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:13:06,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 17:13:06,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 17:13:06,037 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2020-07-20 17:13:06,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:13:06,090 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2020-07-20 17:13:06,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 17:13:06,092 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-07-20 17:13:06,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:13:06,105 INFO L225 Difference]: With dead ends: 38 [2020-07-20 17:13:06,106 INFO L226 Difference]: Without dead ends: 18 [2020-07-20 17:13:06,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 17:13:06,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-20 17:13:06,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-07-20 17:13:06,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-20 17:13:06,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-07-20 17:13:06,166 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-07-20 17:13:06,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:13:06,167 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-07-20 17:13:06,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 17:13:06,167 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-07-20 17:13:06,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-20 17:13:06,169 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:13:06,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:13:06,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:13:06,384 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:13:06,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:13:06,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1041507629, now seen corresponding path program 1 times [2020-07-20 17:13:06,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:13:06,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1393476695] [2020-07-20 17:13:06,387 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:13:06,508 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:13:06,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:13:06,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-20 17:13:06,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:13:06,612 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2020-07-20 17:13:06,613 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 17:13:06,623 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:13:06,624 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 17:13:06,624 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:11 [2020-07-20 17:13:06,656 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-20 17:13:06,657 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 17:13:06,660 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:13:06,660 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 17:13:06,660 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2020-07-20 17:13:06,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:13:06,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:13:06,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1393476695] [2020-07-20 17:13:06,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:13:06,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 17:13:06,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101346948] [2020-07-20 17:13:06,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:13:06,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:13:06,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:13:06,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:13:06,675 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 6 states. [2020-07-20 17:13:06,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:13:06,806 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2020-07-20 17:13:06,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 17:13:06,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-20 17:13:06,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:13:06,809 INFO L225 Difference]: With dead ends: 33 [2020-07-20 17:13:06,809 INFO L226 Difference]: Without dead ends: 31 [2020-07-20 17:13:06,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:13:06,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-07-20 17:13:06,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2020-07-20 17:13:06,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-07-20 17:13:06,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2020-07-20 17:13:06,819 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 14 [2020-07-20 17:13:06,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:13:06,820 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2020-07-20 17:13:06,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:13:06,820 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2020-07-20 17:13:06,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-20 17:13:06,821 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:13:06,821 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:13:07,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:13:07,035 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:13:07,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:13:07,036 INFO L82 PathProgramCache]: Analyzing trace with hash 714847529, now seen corresponding path program 1 times [2020-07-20 17:13:07,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:13:07,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1429083742] [2020-07-20 17:13:07,038 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:13:07,144 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 17:13:07,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:13:07,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 17:13:07,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:13:07,176 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-07-20 17:13:07,176 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 17:13:07,184 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:13:07,190 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-07-20 17:13:07,191 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-20 17:13:07,199 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:13:07,199 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 17:13:07,200 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:19 [2020-07-20 17:13:07,233 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-07-20 17:13:07,234 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 17:13:07,243 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:13:07,248 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-07-20 17:13:07,250 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-20 17:13:07,256 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:13:07,257 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 17:13:07,258 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:7 [2020-07-20 17:13:07,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:13:07,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:13:07,304 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2020-07-20 17:13:07,309 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-20 17:13:07,326 INFO L624 ElimStorePlain]: treesize reduction 19, result has 36.7 percent of original size [2020-07-20 17:13:07,326 INFO L512 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_14| vanished before elimination [2020-07-20 17:13:07,327 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-07-20 17:13:07,327 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:39, output treesize:11 [2020-07-20 17:13:07,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:13:07,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1429083742] [2020-07-20 17:13:07,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:13:07,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-07-20 17:13:07,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929523746] [2020-07-20 17:13:07,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:13:07,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:13:07,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:13:07,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:13:07,344 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 5 states. [2020-07-20 17:13:07,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:13:07,427 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2020-07-20 17:13:07,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 17:13:07,428 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-07-20 17:13:07,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:13:07,430 INFO L225 Difference]: With dead ends: 37 [2020-07-20 17:13:07,430 INFO L226 Difference]: Without dead ends: 27 [2020-07-20 17:13:07,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:13:07,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-07-20 17:13:07,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 20. [2020-07-20 17:13:07,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-20 17:13:07,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-07-20 17:13:07,437 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 17 [2020-07-20 17:13:07,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:13:07,438 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-07-20 17:13:07,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:13:07,438 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-07-20 17:13:07,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-20 17:13:07,439 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:13:07,439 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:13:07,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:13:07,654 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:13:07,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:13:07,655 INFO L82 PathProgramCache]: Analyzing trace with hash -158216428, now seen corresponding path program 1 times [2020-07-20 17:13:07,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:13:07,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2098755028] [2020-07-20 17:13:07,656 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:13:07,887 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:13:07,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 17:13:07,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 17:13:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 17:13:07,927 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 17:13:07,959 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 17:13:07,959 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 17:13:08,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:13:08,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:13:08 BoogieIcfgContainer [2020-07-20 17:13:08,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:13:08,196 INFO L168 Benchmark]: Toolchain (without parser) took 4089.07 ms. Allocated memory was 144.2 MB in the beginning and 248.5 MB in the end (delta: 104.3 MB). Free memory was 99.5 MB in the beginning and 203.3 MB in the end (delta: -103.8 MB). Peak memory consumption was 513.6 kB. Max. memory is 7.1 GB. [2020-07-20 17:13:08,197 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 144.2 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 17:13:08,198 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.89 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 99.3 MB in the beginning and 169.1 MB in the end (delta: -69.7 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-07-20 17:13:08,199 INFO L168 Benchmark]: Boogie Preprocessor took 65.70 ms. Allocated memory is still 201.9 MB. Free memory was 169.1 MB in the beginning and 166.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-07-20 17:13:08,199 INFO L168 Benchmark]: RCFGBuilder took 685.83 ms. Allocated memory is still 201.9 MB. Free memory was 166.3 MB in the beginning and 123.5 MB in the end (delta: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 7.1 GB. [2020-07-20 17:13:08,200 INFO L168 Benchmark]: TraceAbstraction took 2569.79 ms. Allocated memory was 201.9 MB in the beginning and 248.5 MB in the end (delta: 46.7 MB). Free memory was 123.5 MB in the beginning and 203.3 MB in the end (delta: -79.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 17:13:08,204 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 144.2 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 759.89 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 99.3 MB in the beginning and 169.1 MB in the end (delta: -69.7 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.70 ms. Allocated memory is still 201.9 MB. Free memory was 169.1 MB in the beginning and 166.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 685.83 ms. Allocated memory is still 201.9 MB. Free memory was 166.3 MB in the beginning and 123.5 MB in the end (delta: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2569.79 ms. Allocated memory was 201.9 MB in the beginning and 248.5 MB in the end (delta: 46.7 MB). Free memory was 123.5 MB in the beginning and 203.3 MB in the end (delta: -79.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 538]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L521] List a = (List) malloc(sizeof(struct node)); VAL [a={-2:0}, malloc(sizeof(struct node))={-2:0}] [L522] COND FALSE !(a == 0) VAL [a={-2:0}, malloc(sizeof(struct node))={-2:0}] [L523] List t; [L524] List p = a; [L525] a->h = 2 VAL [a={-2:0}, malloc(sizeof(struct node))={-2:0}, p={-2:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] p->h = 1 [L528] t = (List) malloc(sizeof(struct node)) VAL [a={-2:0}, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={-2:0}, p={-2:0}, t={-1:0}] [L529] COND FALSE !(t == 0) VAL [a={-2:0}, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={-2:0}, p={-2:0}, t={-1:0}] [L530] p->n = t [L531] EXPR p->n [L531] p = p->n [L526] COND FALSE !(__VERIFIER_nondet_int()) [L533] p->h = 2 [L534] p->n = 0 [L535] p = a VAL [a={-2:0}, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={-2:0}, p={-2:0}, t={-1:0}] [L536] COND TRUE p!=0 [L537] EXPR p->h VAL [a={-2:0}, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={-2:0}, p={-2:0}, p->h=1, t={-1:0}] [L537] COND TRUE p->h != 2 [L538] __VERIFIER_error() VAL [a={-2:0}, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={-2:0}, p={-2:0}, t={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 33 SDslu, 74 SDs, 0 SdLazy, 55 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 62 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 3880 SizeOfPredicates, 12 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/4 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...