/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 NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-properties/splice-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:19:14,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:19:14,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:19:14,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:19:14,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:19:14,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:19:14,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:19:14,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:19:14,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:19:14,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:19:14,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:19:14,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:19:14,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:19:14,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:19:14,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:19:14,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:19:14,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:19:14,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:19:14,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:19:14,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:19:14,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:19:14,734 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:19:14,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:19:14,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:19:14,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 11:19:14,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 11:19:14,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 11:19:14,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 11:19:14,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 11:19:14,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 11:19:14,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 11:19:14,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 11:19:14,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 11:19:14,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 11:19:14,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 11:19:14,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 11:19:14,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 11:19:14,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 11:19:14,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:19:14,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:19:14,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:19:14,751 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 [2020-07-21 11:19:14,768 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:19:14,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:19:14,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:19:14,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:19:14,770 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:19:14,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:19:14,771 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:19:14,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:19:14,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:19:14,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:19:14,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:19:14,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:19:14,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:19:14,772 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:19:14,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:19:14,773 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:19:14,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:19:14,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:19:14,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:19:14,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:19:14,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:19:14,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:19:14,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:19:14,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:19:14,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:19:14,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:19:14,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:19:14,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:19:14,776 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:19:14,776 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 -> NOT_INCREMENTALLY [2020-07-21 11:19:15,114 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:19:15,132 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:19:15,136 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:19:15,139 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:19:15,139 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:19:15,140 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/splice-1.i [2020-07-21 11:19:15,231 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee1aa1c16/763981f586814c2a856ab9f4fe69981e/FLAG12cc3a46a [2020-07-21 11:19:15,916 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:19:15,917 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/splice-1.i [2020-07-21 11:19:15,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee1aa1c16/763981f586814c2a856ab9f4fe69981e/FLAG12cc3a46a [2020-07-21 11:19:16,136 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee1aa1c16/763981f586814c2a856ab9f4fe69981e [2020-07-21 11:19:16,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:19:16,153 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:19:16,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:19:16,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:19:16,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:19:16,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:19:16" (1/1) ... [2020-07-21 11:19:16,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ca81dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:19:16, skipping insertion in model container [2020-07-21 11:19:16,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:19:16" (1/1) ... [2020-07-21 11:19:16,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:19:16,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:19:16,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:19:16,781 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:19:16,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:19:16,908 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:19:16,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:19:16 WrapperNode [2020-07-21 11:19:16,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:19:16,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:19:16,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:19:16,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:19:16,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:19:16" (1/1) ... [2020-07-21 11:19:16,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:19:16" (1/1) ... [2020-07-21 11:19:16,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:19:16" (1/1) ... [2020-07-21 11:19:16,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:19:16" (1/1) ... [2020-07-21 11:19:16,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:19:16" (1/1) ... [2020-07-21 11:19:17,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:19:16" (1/1) ... [2020-07-21 11:19:17,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:19:16" (1/1) ... [2020-07-21 11:19:17,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:19:17,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:19:17,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:19:17,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:19:17,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:19:16" (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 [2020-07-21 11:19:17,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:19:17,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:19:17,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-21 11:19:17,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-21 11:19:17,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-07-21 11:19:17,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-07-21 11:19:17,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-07-21 11:19:17,107 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-07-21 11:19:17,108 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:19:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:19:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:19:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-21 11:19:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-21 11:19:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-21 11:19:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-21 11:19:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-21 11:19:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-21 11:19:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-21 11:19:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-21 11:19:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-21 11:19:17,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-21 11:19:17,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-21 11:19:17,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-21 11:19:17,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-21 11:19:17,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-21 11:19:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-21 11:19:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-21 11:19:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-21 11:19:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-21 11:19:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-07-21 11:19:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-07-21 11:19:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-07-21 11:19:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-21 11:19:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-21 11:19:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-21 11:19:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-21 11:19:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-21 11:19:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-21 11:19:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-21 11:19:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-21 11:19:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-21 11:19:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-21 11:19:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-21 11:19:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-21 11:19:17,115 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-21 11:19:17,115 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-21 11:19:17,115 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-21 11:19:17,115 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-21 11:19:17,115 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-21 11:19:17,115 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-21 11:19:17,116 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-21 11:19:17,116 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-21 11:19:17,116 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-21 11:19:17,116 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-21 11:19:17,116 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-21 11:19:17,116 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-21 11:19:17,116 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-21 11:19:17,117 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-21 11:19:17,117 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-21 11:19:17,117 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-21 11:19:17,117 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-21 11:19:17,117 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-21 11:19:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-21 11:19:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-21 11:19:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-21 11:19:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-21 11:19:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 11:19:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-21 11:19:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-21 11:19:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 11:19:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-21 11:19:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-21 11:19:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-21 11:19:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-21 11:19:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-21 11:19:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-21 11:19:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-21 11:19:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-21 11:19:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:19:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-21 11:19:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-21 11:19:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-21 11:19:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-21 11:19:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-21 11:19:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-21 11:19:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-21 11:19:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-21 11:19:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-21 11:19:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-21 11:19:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-21 11:19:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-21 11:19:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-21 11:19:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-21 11:19:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-21 11:19:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-21 11:19:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-21 11:19:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-21 11:19:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-21 11:19:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-21 11:19:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-21 11:19:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-21 11:19:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-21 11:19:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-21 11:19:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-21 11:19:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-21 11:19:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-21 11:19:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-21 11:19:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-21 11:19:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-21 11:19:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-21 11:19:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-21 11:19:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-21 11:19:17,126 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-21 11:19:17,126 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-21 11:19:17,126 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-21 11:19:17,126 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-21 11:19:17,126 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-21 11:19:17,126 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-21 11:19:17,126 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-07-21 11:19:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:19:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 11:19:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 11:19:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 11:19:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 11:19:17,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 11:19:17,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:19:17,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:19:17,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 11:19:17,566 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-07-21 11:19:17,793 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:19:17,793 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-21 11:19:17,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:19:17 BoogieIcfgContainer [2020-07-21 11:19:17,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:19:17,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:19:17,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:19:17,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:19:17,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:19:16" (1/3) ... [2020-07-21 11:19:17,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1cd23d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:19:17, skipping insertion in model container [2020-07-21 11:19:17,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:19:16" (2/3) ... [2020-07-21 11:19:17,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1cd23d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:19:17, skipping insertion in model container [2020-07-21 11:19:17,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:19:17" (3/3) ... [2020-07-21 11:19:17,810 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-1.i [2020-07-21 11:19:17,824 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:19:17,835 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:19:17,853 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:19:17,878 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:19:17,879 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:19:17,879 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:19:17,879 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:19:17,879 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:19:17,879 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:19:17,879 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:19:17,879 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:19:17,900 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-07-21 11:19:17,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-21 11:19:17,909 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:19:17,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:19:17,911 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:19:17,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:19:17,917 INFO L82 PathProgramCache]: Analyzing trace with hash 661731879, now seen corresponding path program 1 times [2020-07-21 11:19:17,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:19:17,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361906921] [2020-07-21 11:19:17,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-07-21 11:19:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:19:18,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 11:19:18,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:19:18,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:19:18,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:19:18,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361906921] [2020-07-21 11:19:18,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:19:18,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 11:19:18,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826293680] [2020-07-21 11:19:18,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 11:19:18,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:19:18,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 11:19:18,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 11:19:18,262 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2020-07-21 11:19:18,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:19:18,316 INFO L93 Difference]: Finished difference Result 54 states and 77 transitions. [2020-07-21 11:19:18,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 11:19:18,318 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-21 11:19:18,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:19:18,333 INFO L225 Difference]: With dead ends: 54 [2020-07-21 11:19:18,333 INFO L226 Difference]: Without dead ends: 27 [2020-07-21 11:19:18,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 11:19:18,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-07-21 11:19:18,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-07-21 11:19:18,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-21 11:19:18,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2020-07-21 11:19:18,413 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 16 [2020-07-21 11:19:18,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:19:18,413 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2020-07-21 11:19:18,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 11:19:18,414 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2020-07-21 11:19:18,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-21 11:19:18,416 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:19:18,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:19:18,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:19:18,633 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:19:18,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:19:18,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1973627133, now seen corresponding path program 1 times [2020-07-21 11:19:18,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:19:18,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1923198244] [2020-07-21 11:19:18,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-07-21 11:19:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:19:18,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 11:19:18,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:19:18,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:19:18,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:19:18,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1923198244] [2020-07-21 11:19:18,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:19:18,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 11:19:18,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533992182] [2020-07-21 11:19:18,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 11:19:18,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:19:18,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 11:19:18,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 11:19:18,819 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand 4 states. [2020-07-21 11:19:18,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:19:18,910 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2020-07-21 11:19:18,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:19:18,910 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-21 11:19:18,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:19:18,912 INFO L225 Difference]: With dead ends: 44 [2020-07-21 11:19:18,912 INFO L226 Difference]: Without dead ends: 37 [2020-07-21 11:19:18,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:19:18,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-07-21 11:19:18,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2020-07-21 11:19:18,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-21 11:19:18,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2020-07-21 11:19:18,923 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 18 [2020-07-21 11:19:18,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:19:18,924 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2020-07-21 11:19:18,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 11:19:18,924 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2020-07-21 11:19:18,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-21 11:19:18,925 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:19:18,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:19:19,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:19:19,141 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:19:19,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:19:19,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1721544590, now seen corresponding path program 1 times [2020-07-21 11:19:19,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:19:19,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548967102] [2020-07-21 11:19:19,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-07-21 11:19:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:19:19,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 11:19:19,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:19:19,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:19:19,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:19:19,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548967102] [2020-07-21 11:19:19,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:19:19,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 11:19:19,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850360206] [2020-07-21 11:19:19,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 11:19:19,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:19:19,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 11:19:19,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 11:19:19,297 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand 4 states. [2020-07-21 11:19:19,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:19:19,376 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions. [2020-07-21 11:19:19,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:19:19,377 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-07-21 11:19:19,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:19:19,382 INFO L225 Difference]: With dead ends: 51 [2020-07-21 11:19:19,382 INFO L226 Difference]: Without dead ends: 43 [2020-07-21 11:19:19,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:19:19,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-07-21 11:19:19,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2020-07-21 11:19:19,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-21 11:19:19,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2020-07-21 11:19:19,395 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 20 [2020-07-21 11:19:19,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:19:19,395 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2020-07-21 11:19:19,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 11:19:19,396 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2020-07-21 11:19:19,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-21 11:19:19,397 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:19:19,397 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:19:19,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:19:19,612 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:19:19,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:19:19,614 INFO L82 PathProgramCache]: Analyzing trace with hash -918584693, now seen corresponding path program 1 times [2020-07-21 11:19:19,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:19:19,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040306664] [2020-07-21 11:19:19,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-07-21 11:19:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:19:19,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 11:19:19,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:19:19,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-21 11:19:19,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:19:19,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040306664] [2020-07-21 11:19:19,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:19:19,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 11:19:19,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481618923] [2020-07-21 11:19:19,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 11:19:19,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:19:19,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 11:19:19,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 11:19:19,812 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand 4 states. [2020-07-21 11:19:19,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:19:19,891 INFO L93 Difference]: Finished difference Result 74 states and 98 transitions. [2020-07-21 11:19:19,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 11:19:19,891 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-07-21 11:19:19,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:19:19,893 INFO L225 Difference]: With dead ends: 74 [2020-07-21 11:19:19,893 INFO L226 Difference]: Without dead ends: 47 [2020-07-21 11:19:19,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:19:19,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-07-21 11:19:19,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2020-07-21 11:19:19,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-07-21 11:19:19,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2020-07-21 11:19:19,904 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 21 [2020-07-21 11:19:19,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:19:19,904 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2020-07-21 11:19:19,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 11:19:19,904 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2020-07-21 11:19:19,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-21 11:19:19,906 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:19:19,906 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] [2020-07-21 11:19:20,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:19:20,141 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:19:20,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:19:20,141 INFO L82 PathProgramCache]: Analyzing trace with hash -743556192, now seen corresponding path program 1 times [2020-07-21 11:19:20,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:19:20,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [145480298] [2020-07-21 11:19:20,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:19:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 11:19:20,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 11:19:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 11:19:20,309 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 11:19:20,346 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 11:19:20,347 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 11:19:20,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:19:20,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:19:20 BoogieIcfgContainer [2020-07-21 11:19:20,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:19:20,615 INFO L168 Benchmark]: Toolchain (without parser) took 4462.96 ms. Allocated memory was 137.4 MB in the beginning and 251.1 MB in the end (delta: 113.8 MB). Free memory was 101.3 MB in the beginning and 185.4 MB in the end (delta: -84.1 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2020-07-21 11:19:20,616 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 11:19:20,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.33 ms. Allocated memory was 137.4 MB in the beginning and 202.9 MB in the end (delta: 65.5 MB). Free memory was 100.9 MB in the beginning and 168.7 MB in the end (delta: -67.8 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:19:20,618 INFO L168 Benchmark]: Boogie Preprocessor took 104.34 ms. Allocated memory is still 202.9 MB. Free memory was 168.4 MB in the beginning and 165.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-07-21 11:19:20,619 INFO L168 Benchmark]: RCFGBuilder took 782.88 ms. Allocated memory is still 202.9 MB. Free memory was 165.7 MB in the beginning and 118.9 MB in the end (delta: 46.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:19:20,619 INFO L168 Benchmark]: TraceAbstraction took 2810.57 ms. Allocated memory was 202.9 MB in the beginning and 251.1 MB in the end (delta: 48.2 MB). Free memory was 118.9 MB in the beginning and 185.4 MB in the end (delta: -66.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 11:19:20,624 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 755.33 ms. Allocated memory was 137.4 MB in the beginning and 202.9 MB in the end (delta: 65.5 MB). Free memory was 100.9 MB in the beginning and 168.7 MB in the end (delta: -67.8 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.34 ms. Allocated memory is still 202.9 MB. Free memory was 168.4 MB in the beginning and 165.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 782.88 ms. Allocated memory is still 202.9 MB. Free memory was 165.7 MB in the beginning and 118.9 MB in the end (delta: 46.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2810.57 ms. Allocated memory was 202.9 MB in the beginning and 251.1 MB in the end (delta: 48.2 MB). Free memory was 118.9 MB in the beginning and 185.4 MB in the end (delta: -66.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 573]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L521] int flag = 1; [L522] List a = (List) malloc(sizeof(struct node)); VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L523] COND FALSE !(a == 0) VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L524] List t; [L525] List l1; [L526] List l2; [L527] List b; [L528] List u; [L529] List p = a; VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L530] COND TRUE __VERIFIER_nondet_int() [L531] COND TRUE \read(flag) [L532] p->h = 1 [L533] flag = 0 VAL [a={-1:0}, flag=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L538] t = (List) malloc(sizeof(struct node)) VAL [a={-1:0}, flag=0, malloc(sizeof(struct node))={282:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, t={282:0}] [L539] COND FALSE !(t == 0) VAL [a={-1:0}, flag=0, malloc(sizeof(struct node))={282:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, t={282:0}] [L540] p->n = t [L541] EXPR p->n [L541] p = p->n [L530] COND FALSE !(__VERIFIER_nondet_int()) [L543] p->h = 3 [L544] EXPR a->h VAL [a={-1:0}, a->h=1, flag=0, malloc(sizeof(struct node))={282:0}, malloc(sizeof(struct node))={-1:0}, p={282:0}, t={282:0}] [L544] COND FALSE !(a->h == 3) [L545] flag = 1 [L546] l1 = 0 [L547] l2 = 0 [L548] p = a VAL [a={-1:0}, flag=1, l1={0:0}, l2={0:0}, malloc(sizeof(struct node))={282:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, t={282:0}] [L549] EXPR p->h VAL [a={-1:0}, flag=1, l1={0:0}, l2={0:0}, malloc(sizeof(struct node))={282:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=1, t={282:0}] [L549] COND TRUE p->h != 3 [L550] t = p [L551] EXPR p->n [L551] p = p->n [L552] COND TRUE \read(flag) [L553] t->n = l1 [L554] l1 = t [L555] flag = 0 VAL [a={-1:0}, flag=0, l1={-1:0}, l2={0:0}, malloc(sizeof(struct node))={282:0}, malloc(sizeof(struct node))={-1:0}, p={282:0}, t={-1:0}] [L549] EXPR p->h VAL [a={-1:0}, flag=0, l1={-1:0}, l2={0:0}, malloc(sizeof(struct node))={282:0}, malloc(sizeof(struct node))={-1:0}, p={282:0}, p->h=3, t={-1:0}] [L549] COND FALSE !(p->h != 3) [L562] p = l1 VAL [a={-1:0}, flag=0, l1={-1:0}, l2={0:0}, malloc(sizeof(struct node))={282:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, t={-1:0}] [L563] COND TRUE p != 0 [L564] EXPR p->h VAL [a={-1:0}, flag=0, l1={-1:0}, l2={0:0}, malloc(sizeof(struct node))={282:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=1, t={-1:0}] [L564] COND TRUE p->h != 2 [L573] __VERIFIER_error() VAL [a={-1:0}, flag=0, l1={-1:0}, l2={0:0}, malloc(sizeof(struct node))={282:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, t={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 133 SDtfs, 23 SDslu, 134 SDs, 0 SdLazy, 69 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=4, 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, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 2767 SizeOfPredicates, 13 NumberOfNonLiveVariables, 375 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 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...