/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-sorted-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:34:17,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:34:17,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:34:17,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:34:17,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:34:17,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:34:17,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:34:17,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:34:17,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:34:17,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:34:17,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:34:17,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:34:17,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:34:17,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:34:17,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:34:17,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:34:17,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:34:17,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:34:17,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:34:17,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:34:17,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:34:17,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:34:17,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:34:17,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:34:17,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:34:17,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:34:17,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:34:17,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:34:17,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:34:17,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:34:17,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:34:17,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:34:17,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:34:17,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:34:17,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:34:17,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:34:17,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:34:17,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:34:17,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:34:17,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:34:17,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:34:17,255 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 15:34:17,295 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:34:17,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:34:17,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:34:17,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:34:17,298 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:34:17,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:34:17,298 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:34:17,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:34:17,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:34:17,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:34:17,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:34:17,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:34:17,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:34:17,301 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:34:17,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:34:17,301 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:34:17,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:34:17,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:34:17,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:34:17,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:34:17,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:34:17,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:34:17,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:34:17,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:34:17,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:34:17,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:34:17,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:34:17,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:34:17,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:34:17,304 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:34:17,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:34:17,622 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:34:17,627 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:34:17,629 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:34:17,629 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:34:17,630 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-sorted-1.i [2020-10-12 15:34:17,689 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/441c676b4/e491b35573014e3295beb4d4a82a7079/FLAG6ce663bd5 [2020-10-12 15:34:18,207 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:34:18,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-sorted-1.i [2020-10-12 15:34:18,221 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/441c676b4/e491b35573014e3295beb4d4a82a7079/FLAG6ce663bd5 [2020-10-12 15:34:18,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/441c676b4/e491b35573014e3295beb4d4a82a7079 [2020-10-12 15:34:18,510 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:34:18,511 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:34:18,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:34:18,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:34:18,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:34:18,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:34:18" (1/1) ... [2020-10-12 15:34:18,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76e439e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:18, skipping insertion in model container [2020-10-12 15:34:18,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:34:18" (1/1) ... [2020-10-12 15:34:18,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:34:18,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:34:19,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:34:19,017 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:34:19,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:34:19,168 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:34:19,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:19 WrapperNode [2020-10-12 15:34:19,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:34:19,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:34:19,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:34:19,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:34:19,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:19" (1/1) ... [2020-10-12 15:34:19,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:19" (1/1) ... [2020-10-12 15:34:19,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:19" (1/1) ... [2020-10-12 15:34:19,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:19" (1/1) ... [2020-10-12 15:34:19,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:19" (1/1) ... [2020-10-12 15:34:19,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:19" (1/1) ... [2020-10-12 15:34:19,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:19" (1/1) ... [2020-10-12 15:34:19,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:34:19,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:34:19,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:34:19,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:34:19,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:34:19,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:34:19,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:34:19,306 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:34:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-12 15:34:19,307 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-12 15:34:19,307 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-12 15:34:19,307 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-12 15:34:19,308 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-12 15:34:19,308 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-12 15:34:19,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-12 15:34:19,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-12 15:34:19,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-12 15:34:19,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-12 15:34:19,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-12 15:34:19,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-12 15:34:19,310 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-12 15:34:19,310 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-12 15:34:19,311 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-12 15:34:19,311 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-12 15:34:19,311 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-12 15:34:19,312 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-12 15:34:19,312 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-12 15:34:19,312 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-12 15:34:19,312 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-12 15:34:19,314 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-12 15:34:19,315 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-12 15:34:19,315 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-12 15:34:19,315 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-12 15:34:19,315 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-12 15:34:19,315 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-12 15:34:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-12 15:34:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-12 15:34:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-12 15:34:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-12 15:34:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-12 15:34:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-12 15:34:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-12 15:34:19,317 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-12 15:34:19,317 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-12 15:34:19,317 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-12 15:34:19,317 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-12 15:34:19,317 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-12 15:34:19,317 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-12 15:34:19,317 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-12 15:34:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-12 15:34:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-12 15:34:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-12 15:34:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-12 15:34:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-12 15:34:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-12 15:34:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-12 15:34:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-12 15:34:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-12 15:34:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 15:34:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-12 15:34:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-12 15:34:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 15:34:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-12 15:34:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-12 15:34:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-12 15:34:19,321 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-12 15:34:19,321 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-12 15:34:19,321 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 15:34:19,321 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-12 15:34:19,321 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-12 15:34:19,321 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-12 15:34:19,321 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 15:34:19,322 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-12 15:34:19,323 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-12 15:34:19,323 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-12 15:34:19,323 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-12 15:34:19,325 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-12 15:34:19,325 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-12 15:34:19,325 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-12 15:34:19,325 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-12 15:34:19,326 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-12 15:34:19,326 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-12 15:34:19,326 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-12 15:34:19,326 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-12 15:34:19,326 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-12 15:34:19,326 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-12 15:34:19,326 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-12 15:34:19,327 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-12 15:34:19,327 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-12 15:34:19,327 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-12 15:34:19,327 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-12 15:34:19,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-12 15:34:19,328 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-12 15:34:19,328 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-12 15:34:19,329 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-12 15:34:19,329 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-12 15:34:19,329 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-12 15:34:19,329 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-12 15:34:19,329 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-12 15:34:19,329 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-12 15:34:19,329 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-12 15:34:19,330 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-12 15:34:19,330 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-12 15:34:19,330 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-12 15:34:19,330 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-12 15:34:19,330 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-12 15:34:19,330 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-12 15:34:19,330 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-12 15:34:19,331 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-12 15:34:19,331 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-12 15:34:19,331 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-12 15:34:19,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 15:34:19,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:34:19,331 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:34:19,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 15:34:19,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 15:34:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 15:34:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 15:34:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 15:34:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 15:34:19,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:34:19,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:34:20,048 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:34:20,048 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-12 15:34:20,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:34:20 BoogieIcfgContainer [2020-10-12 15:34:20,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:34:20,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:34:20,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:34:20,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:34:20,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:34:18" (1/3) ... [2020-10-12 15:34:20,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af24641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:34:20, skipping insertion in model container [2020-10-12 15:34:20,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:19" (2/3) ... [2020-10-12 15:34:20,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af24641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:34:20, skipping insertion in model container [2020-10-12 15:34:20,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:34:20" (3/3) ... [2020-10-12 15:34:20,062 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-sorted-1.i [2020-10-12 15:34:20,073 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:34:20,080 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-12 15:34:20,095 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-12 15:34:20,117 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:34:20,118 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:34:20,118 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:34:20,118 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:34:20,118 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:34:20,119 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:34:20,119 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:34:20,119 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:34:20,138 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-10-12 15:34:20,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-12 15:34:20,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:20,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:20,146 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:20,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:20,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1780468538, now seen corresponding path program 1 times [2020-10-12 15:34:20,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:20,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1228563426] [2020-10-12 15:34:20,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:20,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:20,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:20,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:20,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 15:34:20,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:34:20,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-12 15:34:20,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:20,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 15:34:20,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 15:34:20,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 15:34:20,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:34:20,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:20,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:20,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:20,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:20,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:20,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:34:20,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:20,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:20,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:20,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:20,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:20,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:20,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1228563426] [2020-10-12 15:34:20,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:20,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 15:34:20,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363346642] [2020-10-12 15:34:20,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:34:20,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:20,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:34:20,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:34:20,707 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 5 states. [2020-10-12 15:34:21,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:21,007 INFO L93 Difference]: Finished difference Result 148 states and 242 transitions. [2020-10-12 15:34:21,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:34:21,010 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-12 15:34:21,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:21,021 INFO L225 Difference]: With dead ends: 148 [2020-10-12 15:34:21,021 INFO L226 Difference]: Without dead ends: 85 [2020-10-12 15:34:21,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:34:21,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-12 15:34:21,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 52. [2020-10-12 15:34:21,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-12 15:34:21,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2020-10-12 15:34:21,073 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 10 [2020-10-12 15:34:21,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:21,074 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2020-10-12 15:34:21,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:34:21,074 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2020-10-12 15:34:21,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-12 15:34:21,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:21,075 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, 1] [2020-10-12 15:34:21,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:34:21,076 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:21,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:21,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1194919943, now seen corresponding path program 1 times [2020-10-12 15:34:21,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:21,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606229657] [2020-10-12 15:34:21,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:21,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:21,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:21,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:21,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:21,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 15:34:21,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:34:21,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-10-12 15:34:21,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:21,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:34:21,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 15:34:21,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 15:34:21,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:34:21,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:21,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:21,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:21,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:21,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:21,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:34:21,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:21,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:21,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:21,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:21,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:34:21,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:21,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606229657] [2020-10-12 15:34:21,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:21,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:34:21,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396314369] [2020-10-12 15:34:21,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 15:34:21,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:21,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 15:34:21,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:34:21,665 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand 6 states. [2020-10-12 15:34:21,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:21,983 INFO L93 Difference]: Finished difference Result 114 states and 140 transitions. [2020-10-12 15:34:21,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:34:21,983 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-12 15:34:21,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:21,985 INFO L225 Difference]: With dead ends: 114 [2020-10-12 15:34:21,985 INFO L226 Difference]: Without dead ends: 79 [2020-10-12 15:34:21,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-12 15:34:21,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-12 15:34:21,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 64. [2020-10-12 15:34:21,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-12 15:34:21,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions. [2020-10-12 15:34:21,999 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 21 [2020-10-12 15:34:22,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:22,000 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions. [2020-10-12 15:34:22,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 15:34:22,000 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2020-10-12 15:34:22,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-12 15:34:22,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:22,001 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] [2020-10-12 15:34:22,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:34:22,002 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:22,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:22,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1414153713, now seen corresponding path program 1 times [2020-10-12 15:34:22,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:22,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783010144] [2020-10-12 15:34:22,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:22,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:22,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:22,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:22,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 15:34:22,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:34:22,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-12 15:34:22,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:22,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:34:22,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 15:34:22,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:34:22,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:22,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:22,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:22,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:22,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:22,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:22,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:34:22,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:22,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:22,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:22,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:22,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:34:22,194 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 15:34:22,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783010144] [2020-10-12 15:34:22,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:22,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:34:22,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947683501] [2020-10-12 15:34:22,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 15:34:22,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:22,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 15:34:22,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:34:22,198 INFO L87 Difference]: Start difference. First operand 64 states and 77 transitions. Second operand 6 states. [2020-10-12 15:34:22,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:22,477 INFO L93 Difference]: Finished difference Result 109 states and 131 transitions. [2020-10-12 15:34:22,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 15:34:22,477 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-12 15:34:22,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:22,479 INFO L225 Difference]: With dead ends: 109 [2020-10-12 15:34:22,479 INFO L226 Difference]: Without dead ends: 67 [2020-10-12 15:34:22,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:34:22,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-12 15:34:22,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2020-10-12 15:34:22,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-12 15:34:22,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2020-10-12 15:34:22,499 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 24 [2020-10-12 15:34:22,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:22,500 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2020-10-12 15:34:22,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 15:34:22,500 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2020-10-12 15:34:22,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-12 15:34:22,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:22,501 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, 1, 1, 1, 1] [2020-10-12 15:34:22,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:34:22,502 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:22,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:22,502 INFO L82 PathProgramCache]: Analyzing trace with hash 186077840, now seen corresponding path program 1 times [2020-10-12 15:34:22,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:22,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87917440] [2020-10-12 15:34:22,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:22,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:22,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:22,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:22,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-12 15:34:22,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:34:22,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-12 15:34:22,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:22,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:34:22,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 15:34:22,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:34:22,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:22,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:22,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:22,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:22,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:22,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:22,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:34:22,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:22,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:22,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:22,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:22,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:22,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:22,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87917440] [2020-10-12 15:34:22,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:22,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 15:34:22,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210697362] [2020-10-12 15:34:22,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 15:34:22,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:22,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 15:34:22,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:34:22,700 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand 4 states. [2020-10-12 15:34:22,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:22,822 INFO L93 Difference]: Finished difference Result 118 states and 142 transitions. [2020-10-12 15:34:22,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-12 15:34:22,823 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-10-12 15:34:22,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:22,824 INFO L225 Difference]: With dead ends: 118 [2020-10-12 15:34:22,824 INFO L226 Difference]: Without dead ends: 61 [2020-10-12 15:34:22,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:34:22,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-12 15:34:22,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 58. [2020-10-12 15:34:22,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-12 15:34:22,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2020-10-12 15:34:22,832 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 25 [2020-10-12 15:34:22,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:22,833 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2020-10-12 15:34:22,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 15:34:22,833 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2020-10-12 15:34:22,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-12 15:34:22,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:22,834 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, 1, 1, 1, 1] [2020-10-12 15:34:22,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 15:34:22,834 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:22,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:22,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1774425742, now seen corresponding path program 1 times [2020-10-12 15:34:22,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:22,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871264845] [2020-10-12 15:34:22,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 15:34:22,885 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 15:34:22,886 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 15:34:22,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 15:34:22,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 03:34:22 BoogieIcfgContainer [2020-10-12 15:34:22,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 15:34:22,911 INFO L168 Benchmark]: Toolchain (without parser) took 4399.37 ms. Allocated memory was 146.8 MB in the beginning and 247.5 MB in the end (delta: 100.7 MB). Free memory was 100.1 MB in the beginning and 210.5 MB in the end (delta: -110.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 15:34:22,912 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 146.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 15:34:22,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.81 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 99.9 MB in the beginning and 169.8 MB in the end (delta: -69.9 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-12 15:34:22,914 INFO L168 Benchmark]: Boogie Preprocessor took 73.72 ms. Allocated memory is still 203.9 MB. Free memory was 169.8 MB in the beginning and 166.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-10-12 15:34:22,915 INFO L168 Benchmark]: RCFGBuilder took 807.93 ms. Allocated memory is still 203.9 MB. Free memory was 166.4 MB in the beginning and 113.4 MB in the end (delta: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 7.1 GB. [2020-10-12 15:34:22,916 INFO L168 Benchmark]: TraceAbstraction took 2854.60 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 113.4 MB in the beginning and 210.5 MB in the end (delta: -97.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 15:34:22,920 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 146.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 658.81 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 99.9 MB in the beginning and 169.8 MB in the end (delta: -69.9 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.72 ms. Allocated memory is still 203.9 MB. Free memory was 169.8 MB in the beginning and 166.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 807.93 ms. Allocated memory is still 203.9 MB. Free memory was 166.4 MB in the beginning and 113.4 MB in the end (delta: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2854.60 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 113.4 MB in the beginning and 210.5 MB in the end (delta: -97.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1027]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] SLL* head = malloc(sizeof(SLL)); [L987] head->next = ((void*)0) [L988] head->prev = ((void*)0) [L989] head->data = 0 [L991] SLL* x = head; [L992] int marked = 0; [L995] COND TRUE __VERIFIER_nondet_int() || !marked [L998] x->next = malloc(sizeof(SLL)) [L999] EXPR x->next [L999] x->next->prev = x [L1000] EXPR x->next [L1000] x = x->next [L1001] x->next = ((void*)0) [L1003] COND TRUE __VERIFIER_nondet_int() [L1005] marked = 1 [L1008] COND TRUE \read(marked) [L1009] x->data = 1 [L995] COND FALSE !(__VERIFIER_nondet_int() || !marked) [L1014] x = head [L1016] COND FALSE !(!(((void*)0) != x)) [L1017] marked = 0 [L1019] EXPR x->next [L1019] x->next != ((void*)0) && x->next->data == 0 [L1019] EXPR x->next [L1019] EXPR x->next->data [L1019] x->next != ((void*)0) && x->next->data == 0 [L1019] COND FALSE !(x->next != ((void*)0) && x->next->data == 0) [L1024] EXPR x->next [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1024] COND TRUE x->next != ((void*)0) && __VERIFIER_nondet_int() [L1026] EXPR x->next [L1026] x = x->next [L1027] EXPR x->data [L1027] COND TRUE !(x->data != 1) [L1027] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 199 SDtfs, 217 SDslu, 327 SDs, 0 SdLazy, 434 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=3, 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, 53 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 7775 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 5/5 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...