java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/list-properties/splice-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:58:59,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:58:59,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:58:59,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:58:59,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:58:59,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:58:59,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:58:59,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:58:59,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:58:59,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:58:59,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:58:59,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:58:59,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:58:59,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:58:59,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:58:59,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:58:59,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:58:59,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:58:59,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:58:59,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:58:59,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:58:59,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:58:59,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:58:59,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:58:59,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:58:59,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:58:59,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:58:59,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:58:59,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:58:59,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:58:59,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:58:59,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:58:59,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:58:59,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:58:59,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:58:59,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:58:59,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:58:59,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:58:59,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:58:59,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:58:59,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:58:59,154 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 [2019-10-15 02:58:59,169 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:58:59,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:58:59,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:58:59,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:58:59,173 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:58:59,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:58:59,174 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:58:59,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:58:59,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:58:59,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:58:59,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:58:59,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:58:59,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:58:59,175 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:58:59,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:58:59,177 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:58:59,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:58:59,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:58:59,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:58:59,178 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:58:59,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:58:59,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:58:59,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:58:59,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:58:59,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:58:59,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:58:59,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:58:59,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:58:59,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 02:58:59,458 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:58:59,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:58:59,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:58:59,475 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:58:59,476 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:58:59,476 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/splice-2.i [2019-10-15 02:58:59,540 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec479039e/6bfc62df57f9454eb02fb389671890d5/FLAG92e3baaa0 [2019-10-15 02:59:00,082 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:59:00,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/splice-2.i [2019-10-15 02:59:00,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec479039e/6bfc62df57f9454eb02fb389671890d5/FLAG92e3baaa0 [2019-10-15 02:59:00,387 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec479039e/6bfc62df57f9454eb02fb389671890d5 [2019-10-15 02:59:00,396 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:59:00,397 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:59:00,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:59:00,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:59:00,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:59:00,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:59:00" (1/1) ... [2019-10-15 02:59:00,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14543c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:00, skipping insertion in model container [2019-10-15 02:59:00,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:59:00" (1/1) ... [2019-10-15 02:59:00,419 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:59:00,465 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:59:00,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:59:00,920 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:59:00,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:59:01,034 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:59:01,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:01 WrapperNode [2019-10-15 02:59:01,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:59:01,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:59:01,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:59:01,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:59:01,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:01" (1/1) ... [2019-10-15 02:59:01,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:01" (1/1) ... [2019-10-15 02:59:01,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:01" (1/1) ... [2019-10-15 02:59:01,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:01" (1/1) ... [2019-10-15 02:59:01,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:01" (1/1) ... [2019-10-15 02:59:01,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:01" (1/1) ... [2019-10-15 02:59:01,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:01" (1/1) ... [2019-10-15 02:59:01,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:59:01,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:59:01,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:59:01,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:59:01,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:01" (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 [2019-10-15 02:59:01,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:59:01,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:59:01,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 02:59:01,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 02:59:01,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-15 02:59:01,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-15 02:59:01,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-15 02:59:01,187 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 02:59:01,187 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:59:01,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:59:01,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:59:01,188 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 02:59:01,188 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 02:59:01,188 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 02:59:01,188 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 02:59:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 02:59:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 02:59:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 02:59:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 02:59:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 02:59:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 02:59:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 02:59:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 02:59:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 02:59:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 02:59:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 02:59:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 02:59:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 02:59:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 02:59:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-15 02:59:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-15 02:59:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-15 02:59:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 02:59:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 02:59:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 02:59:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 02:59:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 02:59:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 02:59:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 02:59:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 02:59:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 02:59:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 02:59:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 02:59:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 02:59:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 02:59:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 02:59:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 02:59:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 02:59:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 02:59:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 02:59:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 02:59:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 02:59:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 02:59:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 02:59:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 02:59:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 02:59:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 02:59:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 02:59:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 02:59:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 02:59:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 02:59:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 02:59:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 02:59:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 02:59:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 02:59:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 02:59:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:59:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 02:59:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 02:59:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:59:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 02:59:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 02:59:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 02:59:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 02:59:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 02:59:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 02:59:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 02:59:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 02:59:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 02:59:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 02:59:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 02:59:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 02:59:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 02:59:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 02:59:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 02:59:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 02:59:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 02:59:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 02:59:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 02:59:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 02:59:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 02:59:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 02:59:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 02:59:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 02:59:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 02:59:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 02:59:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 02:59:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 02:59:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 02:59:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 02:59:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 02:59:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 02:59:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 02:59:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 02:59:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 02:59:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 02:59:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 02:59:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 02:59:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 02:59:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 02:59:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 02:59:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 02:59:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 02:59:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 02:59:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 02:59:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 02:59:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 02:59:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 02:59:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 02:59:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:59:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:59:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:59:01,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:59:01,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:59:01,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:59:01,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:59:01,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:59:01,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:59:01,613 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 02:59:01,912 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:59:01,912 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 02:59:01,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:59:01 BoogieIcfgContainer [2019-10-15 02:59:01,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:59:01,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:59:01,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:59:01,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:59:01,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:59:00" (1/3) ... [2019-10-15 02:59:01,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35fc9b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:59:01, skipping insertion in model container [2019-10-15 02:59:01,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:01" (2/3) ... [2019-10-15 02:59:01,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35fc9b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:59:01, skipping insertion in model container [2019-10-15 02:59:01,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:59:01" (3/3) ... [2019-10-15 02:59:01,922 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-2.i [2019-10-15 02:59:01,932 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:59:01,940 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:59:01,952 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:59:01,974 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:59:01,974 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:59:01,974 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:59:01,974 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:59:01,975 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:59:01,975 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:59:01,975 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:59:01,975 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:59:01,992 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-10-15 02:59:02,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-15 02:59:02,001 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:59:02,002 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:59:02,004 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:59:02,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:59:02,010 INFO L82 PathProgramCache]: Analyzing trace with hash -768451905, now seen corresponding path program 1 times [2019-10-15 02:59:02,020 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:59:02,020 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914391171] [2019-10-15 02:59:02,021 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:02,021 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:02,021 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:59:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:59:02,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:59:02,162 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914391171] [2019-10-15 02:59:02,163 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:59:02,163 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 02:59:02,164 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240673662] [2019-10-15 02:59:02,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 02:59:02,169 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:59:02,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 02:59:02,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 02:59:02,187 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-10-15 02:59:02,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:59:02,213 INFO L93 Difference]: Finished difference Result 45 states and 61 transitions. [2019-10-15 02:59:02,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 02:59:02,215 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-10-15 02:59:02,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:59:02,224 INFO L225 Difference]: With dead ends: 45 [2019-10-15 02:59:02,224 INFO L226 Difference]: Without dead ends: 22 [2019-10-15 02:59:02,228 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 02:59:02,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-15 02:59:02,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-10-15 02:59:02,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-15 02:59:02,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-10-15 02:59:02,294 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2019-10-15 02:59:02,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:59:02,294 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-10-15 02:59:02,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 02:59:02,295 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-10-15 02:59:02,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-15 02:59:02,296 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:59:02,296 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:59:02,296 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:59:02,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:59:02,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1956545429, now seen corresponding path program 1 times [2019-10-15 02:59:02,297 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:59:02,297 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14579842] [2019-10-15 02:59:02,298 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:02,298 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:02,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:59:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:59:02,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:59:02,431 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14579842] [2019-10-15 02:59:02,435 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:59:02,435 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 02:59:02,435 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345597497] [2019-10-15 02:59:02,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:59:02,437 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:59:02,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:59:02,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:59:02,438 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 4 states. [2019-10-15 02:59:02,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:59:02,528 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2019-10-15 02:59:02,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:59:02,529 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-10-15 02:59:02,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:59:02,530 INFO L225 Difference]: With dead ends: 40 [2019-10-15 02:59:02,530 INFO L226 Difference]: Without dead ends: 29 [2019-10-15 02:59:02,532 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:59:02,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-15 02:59:02,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2019-10-15 02:59:02,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-15 02:59:02,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-10-15 02:59:02,542 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 17 [2019-10-15 02:59:02,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:59:02,543 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-10-15 02:59:02,543 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:59:02,543 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-10-15 02:59:02,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-15 02:59:02,545 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:59:02,545 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:59:02,545 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:59:02,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:59:02,546 INFO L82 PathProgramCache]: Analyzing trace with hash 247782988, now seen corresponding path program 1 times [2019-10-15 02:59:02,546 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:59:02,546 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719999073] [2019-10-15 02:59:02,546 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:02,547 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:02,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:59:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:59:02,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 02:59:02,692 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719999073] [2019-10-15 02:59:02,693 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:59:02,693 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 02:59:02,693 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202840147] [2019-10-15 02:59:02,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:59:02,694 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:59:02,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:59:02,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:59:02,695 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 4 states. [2019-10-15 02:59:02,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:59:02,748 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2019-10-15 02:59:02,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:59:02,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-10-15 02:59:02,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:59:02,750 INFO L225 Difference]: With dead ends: 38 [2019-10-15 02:59:02,750 INFO L226 Difference]: Without dead ends: 32 [2019-10-15 02:59:02,750 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:59:02,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-10-15 02:59:02,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2019-10-15 02:59:02,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-15 02:59:02,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2019-10-15 02:59:02,756 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 21 [2019-10-15 02:59:02,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:59:02,757 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-10-15 02:59:02,757 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:59:02,757 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2019-10-15 02:59:02,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-15 02:59:02,758 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:59:02,758 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:59:02,758 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:59:02,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:59:02,759 INFO L82 PathProgramCache]: Analyzing trace with hash -907009150, now seen corresponding path program 1 times [2019-10-15 02:59:02,759 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:59:02,759 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776024197] [2019-10-15 02:59:02,760 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:02,760 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:02,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:59:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:59:02,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 02:59:02,848 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776024197] [2019-10-15 02:59:02,849 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:59:02,849 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 02:59:02,849 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881091282] [2019-10-15 02:59:02,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:59:02,850 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:59:02,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:59:02,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:59:02,850 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 4 states. [2019-10-15 02:59:02,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:59:02,912 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2019-10-15 02:59:02,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:59:02,912 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-10-15 02:59:02,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:59:02,913 INFO L225 Difference]: With dead ends: 33 [2019-10-15 02:59:02,914 INFO L226 Difference]: Without dead ends: 26 [2019-10-15 02:59:02,914 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:59:02,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-15 02:59:02,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-10-15 02:59:02,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-15 02:59:02,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-10-15 02:59:02,919 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 22 [2019-10-15 02:59:02,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:59:02,920 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-10-15 02:59:02,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:59:02,920 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-10-15 02:59:02,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-15 02:59:02,921 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:59:02,921 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:59:02,921 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:59:02,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:59:02,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1952847741, now seen corresponding path program 1 times [2019-10-15 02:59:02,922 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:59:02,922 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785086846] [2019-10-15 02:59:02,922 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:02,922 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:02,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:59:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:59:03,174 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:59:03,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785086846] [2019-10-15 02:59:03,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162816499] [2019-10-15 02:59:03,176 INFO L94 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 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:59:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:59:03,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 39 conjunts are in the unsatisfiable core [2019-10-15 02:59:03,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:59:03,378 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2019-10-15 02:59:03,378 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:03,389 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:03,390 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:59:03,390 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-10-15 02:59:03,443 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:03,482 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:03,482 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-10-15 02:59:03,483 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:03,510 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:03,518 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:03,536 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:03,541 INFO L375 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 15 treesize of output 1 [2019-10-15 02:59:03,542 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:03,553 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:03,559 INFO L375 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 11 treesize of output 7 [2019-10-15 02:59:03,559 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:03,575 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:03,575 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_30| vanished before elimination [2019-10-15 02:59:03,576 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:59:03,576 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:61, output treesize:21 [2019-10-15 02:59:03,607 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 02:59:03,610 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2019-10-15 02:59:03,611 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:03,636 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:03,636 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:59:03,636 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:15 [2019-10-15 02:59:03,670 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2019-10-15 02:59:03,671 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:03,683 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:03,684 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-15 02:59:03,685 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:22 [2019-10-15 02:59:03,784 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:03,804 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2019-10-15 02:59:03,805 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:03,814 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:03,815 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-15 02:59:03,815 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:22 [2019-10-15 02:59:03,899 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2019-10-15 02:59:03,900 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:03,905 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:03,906 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:59:03,906 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:26, output treesize:3 [2019-10-15 02:59:03,912 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:59:03,912 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:59:03,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:03,944 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 02:59:03,970 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:03,975 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 02:59:03,991 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:03,992 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2019-10-15 02:59:03,995 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:64, output treesize:39 [2019-10-15 02:59:07,928 WARN L191 SmtUtils]: Spent 3.01 s on a formula simplification that was a NOOP. DAG size: 28 [2019-10-15 02:59:07,937 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,026 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 02:59:08,032 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:08,033 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-10-15 02:59:08,034 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:40 [2019-10-15 02:59:08,095 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,125 INFO L375 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 88 treesize of output 72 [2019-10-15 02:59:08,125 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:08,181 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:08,186 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:08,231 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:08,247 INFO L375 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 72 treesize of output 56 [2019-10-15 02:59:08,247 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:08,286 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:08,287 INFO L464 ElimStorePlain]: Eliminatee |#memory_$Pointer$.base| vanished before elimination [2019-10-15 02:59:08,295 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 57 [2019-10-15 02:59:08,296 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:08,322 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:08,322 INFO L464 ElimStorePlain]: Eliminatee v_prenex_12 vanished before elimination [2019-10-15 02:59:08,322 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_35| vanished before elimination [2019-10-15 02:59:08,323 INFO L464 ElimStorePlain]: Eliminatee v_prenex_4 vanished before elimination [2019-10-15 02:59:08,330 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-15 02:59:08,380 INFO L341 Elim1Store]: treesize reduction 34, result has 59.0 percent of original size [2019-10-15 02:59:08,381 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 70 [2019-10-15 02:59:08,382 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,382 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,384 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,421 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:08,422 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 77 [2019-10-15 02:59:08,422 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,423 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,423 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,424 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,425 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,426 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,427 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,429 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,430 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,432 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,432 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,433 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,434 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,436 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,437 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,438 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,440 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,440 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,441 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,442 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,443 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,444 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,446 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,447 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,450 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:08,455 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-15 02:59:08,456 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-15 02:59:08,457 INFO L392 ElimStorePlain]: Different costs {0=[v_arrayElimCell_9, v_arrayElimCell_10], 1=[v_arrayElimCell_11]} [2019-10-15 02:59:08,660 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:59:08,662 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: This case should habe been handled by DER at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:192) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.(DerPreprocessor.java:95) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:291) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:256) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:256) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:335) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-15 02:59:08,667 INFO L168 Benchmark]: Toolchain (without parser) took 8269.28 ms. Allocated memory was 146.3 MB in the beginning and 246.4 MB in the end (delta: 100.1 MB). Free memory was 101.2 MB in the beginning and 109.2 MB in the end (delta: -8.0 MB). Peak memory consumption was 92.1 MB. Max. memory is 7.1 GB. [2019-10-15 02:59:08,667 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 02:59:08,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.67 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 101.0 MB in the beginning and 170.6 MB in the end (delta: -69.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-10-15 02:59:08,669 INFO L168 Benchmark]: Boogie Preprocessor took 79.02 ms. Allocated memory is still 204.5 MB. Free memory was 170.6 MB in the beginning and 167.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2019-10-15 02:59:08,670 INFO L168 Benchmark]: RCFGBuilder took 799.18 ms. Allocated memory is still 204.5 MB. Free memory was 167.3 MB in the beginning and 112.3 MB in the end (delta: 55.0 MB). Peak memory consumption was 55.0 MB. Max. memory is 7.1 GB. [2019-10-15 02:59:08,670 INFO L168 Benchmark]: TraceAbstraction took 6750.05 ms. Allocated memory was 204.5 MB in the beginning and 246.4 MB in the end (delta: 41.9 MB). Free memory was 112.3 MB in the beginning and 109.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2019-10-15 02:59:08,674 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 633.67 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 101.0 MB in the beginning and 170.6 MB in the end (delta: -69.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.02 ms. Allocated memory is still 204.5 MB. Free memory was 170.6 MB in the beginning and 167.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 799.18 ms. Allocated memory is still 204.5 MB. Free memory was 167.3 MB in the beginning and 112.3 MB in the end (delta: 55.0 MB). Peak memory consumption was 55.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6750.05 ms. Allocated memory was 204.5 MB in the beginning and 246.4 MB in the end (delta: 41.9 MB). Free memory was 112.3 MB in the beginning and 109.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: This case should habe been handled by DER de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: This case should habe been handled by DER: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:212) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...