/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:27:25,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:27:25,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:27:25,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:27:25,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:27:25,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:27:25,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:27:25,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:27:25,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:27:25,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:27:25,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:27:25,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:27:25,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:27:25,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:27:25,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:27:25,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:27:25,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:27:25,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:27:25,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:27:25,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:27:25,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:27:25,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:27:25,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:27:25,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:27:25,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:27:25,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:27:25,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:27:25,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:27:25,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:27:25,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:27:25,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:27:25,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:27:25,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:27:25,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:27:25,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:27:25,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:27:25,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:27:25,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:27:25,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:27:25,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:27:25,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:27:25,313 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 [2020-09-21 12:27:25,360 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:27:25,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:27:25,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:27:25,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:27:25,363 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:27:25,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:27:25,364 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:27:25,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:27:25,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:27:25,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:27:25,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:27:25,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:27:25,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:27:25,366 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:27:25,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:27:25,367 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:27:25,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:27:25,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:27:25,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:27:25,368 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:27:25,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:27:25,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:27:25,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:27:25,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:27:25,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:27:25,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:27:25,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:27:25,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:27:25,370 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:27:25,370 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:27:25,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:27:25,871 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:27:25,875 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:27:25,877 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:27:25,877 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:27:25,879 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2020-09-21 12:27:25,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b296af16a/67a01953196748559c3861ff2cd45e98/FLAG1ae961c2a [2020-09-21 12:27:26,564 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:27:26,565 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2020-09-21 12:27:26,581 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b296af16a/67a01953196748559c3861ff2cd45e98/FLAG1ae961c2a [2020-09-21 12:27:26,832 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b296af16a/67a01953196748559c3861ff2cd45e98 [2020-09-21 12:27:26,845 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:27:26,851 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:27:26,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:27:26,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:27:26,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:27:26,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:27:26" (1/1) ... [2020-09-21 12:27:26,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc4c8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:26, skipping insertion in model container [2020-09-21 12:27:26,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:27:26" (1/1) ... [2020-09-21 12:27:26,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:27:26,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:27:27,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:27:27,440 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:27:27,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:27:27,549 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:27:27,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:27 WrapperNode [2020-09-21 12:27:27,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:27:27,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:27:27,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:27:27,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:27:27,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:27" (1/1) ... [2020-09-21 12:27:27,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:27" (1/1) ... [2020-09-21 12:27:27,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:27" (1/1) ... [2020-09-21 12:27:27,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:27" (1/1) ... [2020-09-21 12:27:27,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:27" (1/1) ... [2020-09-21 12:27:27,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:27" (1/1) ... [2020-09-21 12:27:27,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:27" (1/1) ... [2020-09-21 12:27:27,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:27:27,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:27:27,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:27:27,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:27:27,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:27" (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 [2020-09-21 12:27:27,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:27:27,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:27:27,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-21 12:27:27,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-21 12:27:27,728 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-09-21 12:27:27,728 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-09-21 12:27:27,728 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2020-09-21 12:27:27,729 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2020-09-21 12:27:27,729 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_get_data_at [2020-09-21 12:27:27,729 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_update_at [2020-09-21 12:27:27,729 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:27:27,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:27:27,730 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-21 12:27:27,730 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-21 12:27:27,730 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-21 12:27:27,730 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-21 12:27:27,730 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-21 12:27:27,731 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-21 12:27:27,731 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-21 12:27:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-21 12:27:27,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-21 12:27:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-21 12:27:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-21 12:27:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-21 12:27:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-21 12:27:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-21 12:27:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-21 12:27:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-21 12:27:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-21 12:27:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-21 12:27:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-21 12:27:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-21 12:27:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-21 12:27:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-21 12:27:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-21 12:27:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-21 12:27:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-21 12:27:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-21 12:27:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-21 12:27:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-21 12:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-21 12:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-21 12:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-21 12:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-21 12:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-21 12:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-21 12:27:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-21 12:27:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-21 12:27:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-21 12:27:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-21 12:27:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-21 12:27:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-21 12:27:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-21 12:27:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-21 12:27:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-21 12:27:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-21 12:27:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-21 12:27:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-21 12:27:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-21 12:27:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-21 12:27:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-21 12:27:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-21 12:27:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-21 12:27:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-21 12:27:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:27:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-21 12:27:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-21 12:27:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:27:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-21 12:27:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-21 12:27:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-21 12:27:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-21 12:27:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-21 12:27:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 12:27:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-21 12:27:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-21 12:27:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-21 12:27:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 12:27:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-21 12:27:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-21 12:27:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-21 12:27:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-21 12:27:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-21 12:27:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-21 12:27:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-21 12:27:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-21 12:27:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-21 12:27:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-21 12:27:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-21 12:27:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-21 12:27:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-21 12:27:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-21 12:27:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-21 12:27:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-21 12:27:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-21 12:27:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-21 12:27:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-21 12:27:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-21 12:27:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-21 12:27:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-21 12:27:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-21 12:27:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-21 12:27:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-21 12:27:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-21 12:27:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-21 12:27:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-21 12:27:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-21 12:27:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-21 12:27:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-21 12:27:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-21 12:27:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-21 12:27:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-21 12:27:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-21 12:27:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-21 12:27:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-21 12:27:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-21 12:27:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-21 12:27:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-09-21 12:27:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-09-21 12:27:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:27:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:27:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:27:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2020-09-21 12:27:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2020-09-21 12:27:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:27:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:27:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure dll_get_data_at [2020-09-21 12:27:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:27:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure dll_update_at [2020-09-21 12:27:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:27:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:27:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:27:28,183 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-09-21 12:27:28,359 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:27:28,360 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-21 12:27:28,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:27:28 BoogieIcfgContainer [2020-09-21 12:27:28,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:27:28,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:27:28,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:27:28,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:27:28,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:27:26" (1/3) ... [2020-09-21 12:27:28,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@621b382e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:27:28, skipping insertion in model container [2020-09-21 12:27:28,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:27" (2/3) ... [2020-09-21 12:27:28,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@621b382e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:27:28, skipping insertion in model container [2020-09-21 12:27:28,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:27:28" (3/3) ... [2020-09-21 12:27:28,375 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2n_update_all_reverse.i [2020-09-21 12:27:28,386 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:27:28,396 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:27:28,416 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:27:28,444 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:27:28,444 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:27:28,444 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:27:28,444 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:27:28,444 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:27:28,444 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:27:28,444 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:27:28,445 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:27:28,466 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2020-09-21 12:27:28,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-21 12:27:28,474 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:27:28,476 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, 1, 1, 1, 1] [2020-09-21 12:27:28,476 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:27:28,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:27:28,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1303429635, now seen corresponding path program 1 times [2020-09-21 12:27:28,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:27:28,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1739859739] [2020-09-21 12:27:28,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:27:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:28,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:28,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:28,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:28,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:29,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:29,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 12:27:29,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:27:29,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:27:29,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-21 12:27:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:29,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:27:29,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:27:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:29,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:29,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:29,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:27:29,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:29,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:27:29,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:29,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:29,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:27:29,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:29,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:27:29,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:27:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:29,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:29,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:29,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:27:29,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:29,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:27:29,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:29,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:29,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:27:29,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:29,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:27:29,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:27:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:29,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:29,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:29,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:27:29,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:29,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:27:29,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:29,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:29,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 12:27:29,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:29,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:29,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:27:29,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1739859739] [2020-09-21 12:27:29,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:27:29,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:27:29,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160561099] [2020-09-21 12:27:29,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:27:29,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:27:29,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:27:29,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:27:29,829 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 4 states. [2020-09-21 12:27:30,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:27:30,125 INFO L93 Difference]: Finished difference Result 123 states and 178 transitions. [2020-09-21 12:27:30,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:27:30,127 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-09-21 12:27:30,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:27:30,143 INFO L225 Difference]: With dead ends: 123 [2020-09-21 12:27:30,143 INFO L226 Difference]: Without dead ends: 64 [2020-09-21 12:27:30,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:27:30,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-21 12:27:30,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 38. [2020-09-21 12:27:30,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-21 12:27:30,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2020-09-21 12:27:30,213 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 25 [2020-09-21 12:27:30,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:27:30,213 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2020-09-21 12:27:30,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:27:30,214 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2020-09-21 12:27:30,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-21 12:27:30,215 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:27:30,216 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, 1, 1, 1, 1] [2020-09-21 12:27:30,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:27:30,217 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:27:30,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:27:30,217 INFO L82 PathProgramCache]: Analyzing trace with hash 2048382207, now seen corresponding path program 1 times [2020-09-21 12:27:30,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:27:30,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023442261] [2020-09-21 12:27:30,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:27:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:30,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:30,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:30,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:30,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:31,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:31,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 12:27:31,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:27:31,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:27:31,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:31,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:27:31,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:27:31,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:27:31,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:31,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:27:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:31,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:31,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:31,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:27:31,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:31,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:27:31,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:31,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:31,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:27:31,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:31,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:31,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:27:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:31,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:31,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:31,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:31,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:27:31,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:27:31,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-21 12:27:31,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:31,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:27:31,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:27:31,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:27:31,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:31,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:27:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:31,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:31,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:31,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:27:31,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:27:31,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:27:31,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:27:31,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:27:31,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 12:27:31,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:27:31,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:27:31,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:27:31,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023442261] [2020-09-21 12:27:31,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:27:31,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:27:31,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253519919] [2020-09-21 12:27:31,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:27:31,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:27:31,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:27:31,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:27:31,403 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 6 states. [2020-09-21 12:27:31,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:27:31,738 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2020-09-21 12:27:31,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:27:31,739 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-09-21 12:27:31,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:27:31,740 INFO L225 Difference]: With dead ends: 56 [2020-09-21 12:27:31,740 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 12:27:31,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:27:31,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 12:27:31,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 12:27:31,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 12:27:31,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 12:27:31,744 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-09-21 12:27:31,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:27:31,744 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 12:27:31,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:27:31,745 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 12:27:31,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 12:27:31,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:27:31,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 12:27:32,170 INFO L264 CegarLoopResult]: At program point L607-2(lines 607 610) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-09-21 12:27:32,170 INFO L268 CegarLoopResult]: For program point L607-3(lines 607 610) no Hoare annotation was computed. [2020-09-21 12:27:32,170 INFO L264 CegarLoopResult]: At program point dll_update_atENTRY(lines 606 612) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-09-21 12:27:32,170 INFO L268 CegarLoopResult]: For program point dll_update_atEXIT(lines 606 612) no Hoare annotation was computed. [2020-09-21 12:27:32,171 INFO L268 CegarLoopResult]: For program point dll_update_atFINAL(lines 606 612) no Hoare annotation was computed. [2020-09-21 12:27:32,171 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:27:32,171 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-21 12:27:32,171 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:27:32,171 INFO L271 CegarLoopResult]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2020-09-21 12:27:32,171 INFO L268 CegarLoopResult]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2020-09-21 12:27:32,171 INFO L271 CegarLoopResult]: At program point L562(line 562) the Hoare annotation is: true [2020-09-21 12:27:32,172 INFO L268 CegarLoopResult]: For program point L578-1(lines 578 580) no Hoare annotation was computed. [2020-09-21 12:27:32,172 INFO L264 CegarLoopResult]: At program point dll_createENTRY(lines 574 591) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-21 12:27:32,172 INFO L271 CegarLoopResult]: At program point L576-2(lines 576 589) the Hoare annotation is: true [2020-09-21 12:27:32,172 INFO L268 CegarLoopResult]: For program point L576-3(lines 576 589) no Hoare annotation was computed. [2020-09-21 12:27:32,173 INFO L268 CegarLoopResult]: For program point dll_createFINAL(lines 574 591) no Hoare annotation was computed. [2020-09-21 12:27:32,173 INFO L271 CegarLoopResult]: At program point L579(line 579) the Hoare annotation is: true [2020-09-21 12:27:32,173 INFO L268 CegarLoopResult]: For program point dll_createEXIT(lines 574 591) no Hoare annotation was computed. [2020-09-21 12:27:32,173 INFO L268 CegarLoopResult]: For program point L584(lines 584 586) no Hoare annotation was computed. [2020-09-21 12:27:32,173 INFO L268 CegarLoopResult]: For program point L584-2(lines 584 586) no Hoare annotation was computed. [2020-09-21 12:27:32,174 INFO L268 CegarLoopResult]: For program point L578(lines 578 580) no Hoare annotation was computed. [2020-09-21 12:27:32,174 INFO L268 CegarLoopResult]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2020-09-21 12:27:32,174 INFO L268 CegarLoopResult]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2020-09-21 12:27:32,174 INFO L268 CegarLoopResult]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2020-09-21 12:27:32,175 INFO L268 CegarLoopResult]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2020-09-21 12:27:32,175 INFO L268 CegarLoopResult]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2020-09-21 12:27:32,175 INFO L268 CegarLoopResult]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2020-09-21 12:27:32,175 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:27:32,175 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-21 12:27:32,175 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 12:27:32,175 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:27:32,176 INFO L271 CegarLoopResult]: At program point L600-2(lines 600 603) the Hoare annotation is: true [2020-09-21 12:27:32,176 INFO L268 CegarLoopResult]: For program point L600-3(lines 600 603) no Hoare annotation was computed. [2020-09-21 12:27:32,176 INFO L268 CegarLoopResult]: For program point dll_get_data_atFINAL(lines 599 605) no Hoare annotation was computed. [2020-09-21 12:27:32,176 INFO L271 CegarLoopResult]: At program point dll_get_data_atENTRY(lines 599 605) the Hoare annotation is: true [2020-09-21 12:27:32,176 INFO L268 CegarLoopResult]: For program point dll_get_data_atEXIT(lines 599 605) no Hoare annotation was computed. [2020-09-21 12:27:32,176 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 613 632) no Hoare annotation was computed. [2020-09-21 12:27:32,176 INFO L268 CegarLoopResult]: For program point L628(line 628) no Hoare annotation was computed. [2020-09-21 12:27:32,177 INFO L264 CegarLoopResult]: At program point L624(line 624) the Hoare annotation is: false [2020-09-21 12:27:32,177 INFO L268 CegarLoopResult]: For program point L624-1(line 624) no Hoare annotation was computed. [2020-09-21 12:27:32,178 INFO L268 CegarLoopResult]: For program point L624-2(lines 624 626) no Hoare annotation was computed. [2020-09-21 12:27:32,178 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 613 632) no Hoare annotation was computed. [2020-09-21 12:27:32,178 INFO L264 CegarLoopResult]: At program point L620(line 620) the Hoare annotation is: (<= 2 main_~len~0) [2020-09-21 12:27:32,178 INFO L268 CegarLoopResult]: For program point L622-2(lines 622 627) no Hoare annotation was computed. [2020-09-21 12:27:32,179 INFO L268 CegarLoopResult]: For program point L620-1(lines 618 621) no Hoare annotation was computed. [2020-09-21 12:27:32,179 INFO L264 CegarLoopResult]: At program point L622-3(lines 622 627) the Hoare annotation is: (and (<= 2 main_~len~0) (<= 1 main_~i~0)) [2020-09-21 12:27:32,179 INFO L271 CegarLoopResult]: At program point L622-4(lines 622 627) the Hoare annotation is: true [2020-09-21 12:27:32,179 INFO L264 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (<= 2 main_~len~0) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-21 12:27:32,179 INFO L264 CegarLoopResult]: At program point L618-2(lines 618 621) the Hoare annotation is: (<= 2 main_~len~0) [2020-09-21 12:27:32,179 INFO L268 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-09-21 12:27:32,182 INFO L268 CegarLoopResult]: For program point L618-3(lines 618 621) no Hoare annotation was computed. [2020-09-21 12:27:32,182 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 630) no Hoare annotation was computed. [2020-09-21 12:27:32,182 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 613 632) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-21 12:27:32,183 INFO L264 CegarLoopResult]: At program point L625(lines 613 632) the Hoare annotation is: false [2020-09-21 12:27:32,183 INFO L268 CegarLoopResult]: For program point dll_destroyEXIT(lines 592 598) no Hoare annotation was computed. [2020-09-21 12:27:32,183 INFO L264 CegarLoopResult]: At program point dll_destroyENTRY(lines 592 598) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-21 12:27:32,183 INFO L271 CegarLoopResult]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2020-09-21 12:27:32,183 INFO L268 CegarLoopResult]: For program point L593-3(lines 592 598) no Hoare annotation was computed. [2020-09-21 12:27:32,184 INFO L268 CegarLoopResult]: For program point node_createENTRY(lines 564 573) no Hoare annotation was computed. [2020-09-21 12:27:32,184 INFO L268 CegarLoopResult]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2020-09-21 12:27:32,184 INFO L268 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-09-21 12:27:32,184 INFO L268 CegarLoopResult]: For program point L566(lines 566 568) no Hoare annotation was computed. [2020-09-21 12:27:32,184 INFO L268 CegarLoopResult]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2020-09-21 12:27:32,184 INFO L268 CegarLoopResult]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2020-09-21 12:27:32,209 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 12:27:32,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 12:27:32,211 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 12:27:32,212 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 12:27:32,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 12:27:32,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 12:27:32,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:27:32,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:27:32,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 12:27:32,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 12:27:32,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 12:27:32,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 12:27:32,215 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 12:27:32,215 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 12:27:32,215 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 12:27:32,215 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 12:27:32,216 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:27:32,216 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:27:32,216 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 12:27:32,216 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 12:27:32,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:27:32 BoogieIcfgContainer [2020-09-21 12:27:32,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:27:32,229 INFO L168 Benchmark]: Toolchain (without parser) took 5377.26 ms. Allocated memory was 148.4 MB in the beginning and 245.4 MB in the end (delta: 97.0 MB). Free memory was 101.8 MB in the beginning and 179.1 MB in the end (delta: -77.4 MB). Peak memory consumption was 106.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:27:32,231 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 148.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:27:32,233 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.34 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 101.1 MB in the beginning and 170.6 MB in the end (delta: -69.5 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-09-21 12:27:32,234 INFO L168 Benchmark]: Boogie Preprocessor took 89.77 ms. Allocated memory is still 205.0 MB. Free memory was 170.6 MB in the beginning and 168.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-21 12:27:32,236 INFO L168 Benchmark]: RCFGBuilder took 724.47 ms. Allocated memory is still 205.0 MB. Free memory was 168.0 MB in the beginning and 118.6 MB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:27:32,240 INFO L168 Benchmark]: TraceAbstraction took 3855.19 ms. Allocated memory was 205.0 MB in the beginning and 245.4 MB in the end (delta: 40.4 MB). Free memory was 117.9 MB in the beginning and 179.1 MB in the end (delta: -61.2 MB). Peak memory consumption was 65.9 MB. Max. memory is 7.1 GB. [2020-09-21 12:27:32,251 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 148.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 698.34 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 101.1 MB in the beginning and 170.6 MB in the end (delta: -69.5 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.77 ms. Allocated memory is still 205.0 MB. Free memory was 170.6 MB in the beginning and 168.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 724.47 ms. Allocated memory is still 205.0 MB. Free memory was 168.0 MB in the beginning and 118.6 MB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3855.19 ms. Allocated memory was 205.0 MB in the beginning and 245.4 MB in the end (delta: 40.4 MB). Free memory was 117.9 MB in the beginning and 179.1 MB in the end (delta: -61.2 MB). Peak memory consumption was 65.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 630]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 2 <= len - InvariantResult [Line: 607]: Loop Invariant [2020-09-21 12:27:32,273 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 12:27:32,274 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 12:27:32,274 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 12:27:32,274 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 12:27:32,274 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 12:27:32,274 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 12:27:32,275 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:27:32,275 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:27:32,275 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 12:27:32,275 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 12:27:32,276 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 12:27:32,277 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 12:27:32,277 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 12:27:32,277 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 12:27:32,277 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 12:27:32,277 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 12:27:32,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:27:32,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:27:32,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 12:27:32,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (#memory_$Pointer$ == \old(#memory_$Pointer$) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$) - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: 2 <= len && 1 <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 72 SDtfs, 111 SDslu, 52 SDs, 0 SdLazy, 157 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 26 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 38 PreInvPairs, 55 NumberOfFragments, 109 HoareAnnotationTreeSize, 38 FomulaSimplifications, 115 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 22 FomulaSimplificationsInter, 115 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 2544 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 correct! Received shutdown request...