/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 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-properties/list_search-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 16:32:41,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 16:32:41,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 16:32:41,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 16:32:41,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 16:32:41,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 16:32:41,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 16:32:41,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 16:32:41,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 16:32:41,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 16:32:41,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 16:32:41,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 16:32:41,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 16:32:41,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 16:32:41,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 16:32:41,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 16:32:41,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 16:32:41,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 16:32:41,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 16:32:41,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 16:32:41,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 16:32:41,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 16:32:41,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 16:32:41,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 16:32:41,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 16:32:41,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 16:32:41,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 16:32:41,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 16:32:41,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 16:32:41,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 16:32:41,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 16:32:41,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 16:32:41,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 16:32:41,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 16:32:41,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 16:32:41,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 16:32:41,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 16:32:41,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 16:32:41,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 16:32:41,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 16:32:41,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 16:32:41,486 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 [2020-08-21 16:32:41,509 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 16:32:41,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 16:32:41,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 16:32:41,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 16:32:41,511 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 16:32:41,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 16:32:41,511 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 16:32:41,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 16:32:41,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 16:32:41,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 16:32:41,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 16:32:41,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 16:32:41,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 16:32:41,512 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 16:32:41,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 16:32:41,513 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 16:32:41,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 16:32:41,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 16:32:41,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 16:32:41,514 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 16:32:41,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 16:32:41,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 16:32:41,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 16:32:41,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 16:32:41,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 16:32:41,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 16:32:41,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 16:32:41,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 16:32:41,515 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 16:32:41,515 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 -> 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 -> 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 -> enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-08-21 16:32:41,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 16:32:41,898 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 16:32:41,903 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 16:32:41,905 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 16:32:41,906 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 16:32:41,906 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_search-1.i [2020-08-21 16:32:41,975 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c34a0ceb9/ddfab2fa0ad54d3e8b089ea201c7b478/FLAGd745b37cc [2020-08-21 16:32:42,431 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 16:32:42,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-properties/list_search-1.i [2020-08-21 16:32:42,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c34a0ceb9/ddfab2fa0ad54d3e8b089ea201c7b478/FLAGd745b37cc [2020-08-21 16:32:42,803 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c34a0ceb9/ddfab2fa0ad54d3e8b089ea201c7b478 [2020-08-21 16:32:42,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 16:32:42,813 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 16:32:42,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 16:32:42,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 16:32:42,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 16:32:42,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 04:32:42" (1/1) ... [2020-08-21 16:32:42,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e500e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:32:42, skipping insertion in model container [2020-08-21 16:32:42,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 04:32:42" (1/1) ... [2020-08-21 16:32:42,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 16:32:42,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 16:32:43,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 16:32:43,372 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 16:32:43,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 16:32:43,508 INFO L208 MainTranslator]: Completed translation [2020-08-21 16:32:43,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:32:43 WrapperNode [2020-08-21 16:32:43,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 16:32:43,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 16:32:43,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 16:32:43,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 16:32:43,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:32:43" (1/1) ... [2020-08-21 16:32:43,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:32:43" (1/1) ... [2020-08-21 16:32:43,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:32:43" (1/1) ... [2020-08-21 16:32:43,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:32:43" (1/1) ... [2020-08-21 16:32:43,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:32:43" (1/1) ... [2020-08-21 16:32:43,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:32:43" (1/1) ... [2020-08-21 16:32:43,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:32:43" (1/1) ... [2020-08-21 16:32:43,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 16:32:43,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 16:32:43,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 16:32:43,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 16:32:43,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:32:43" (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 [2020-08-21 16:32:43,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 16:32:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 16:32:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-21 16:32:43,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-08-21 16:32:43,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-08-21 16:32:43,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-08-21 16:32:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-08-21 16:32:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-08-21 16:32:43,646 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2020-08-21 16:32:43,647 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2020-08-21 16:32:43,647 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 16:32:43,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 16:32:43,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-21 16:32:43,647 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-21 16:32:43,647 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-21 16:32:43,648 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-21 16:32:43,648 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-21 16:32:43,648 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-21 16:32:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-21 16:32:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-21 16:32:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-21 16:32:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-21 16:32:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-21 16:32:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-21 16:32:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-21 16:32:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-21 16:32:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-21 16:32:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-21 16:32:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-21 16:32:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-08-21 16:32:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-08-21 16:32:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-08-21 16:32:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-08-21 16:32:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-08-21 16:32:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-21 16:32:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-21 16:32:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-21 16:32:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-21 16:32:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-21 16:32:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-21 16:32:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-21 16:32:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-21 16:32:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-21 16:32:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-21 16:32:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-21 16:32:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-21 16:32:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-21 16:32:43,657 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-21 16:32:43,657 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-21 16:32:43,657 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-21 16:32:43,657 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-21 16:32:43,657 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-21 16:32:43,657 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-21 16:32:43,658 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-21 16:32:43,658 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-21 16:32:43,658 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-21 16:32:43,658 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-21 16:32:43,658 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-21 16:32:43,659 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-21 16:32:43,659 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-21 16:32:43,659 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-21 16:32:43,659 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-21 16:32:43,659 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-21 16:32:43,659 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-21 16:32:43,660 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-21 16:32:43,660 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-21 16:32:43,660 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-21 16:32:43,661 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-21 16:32:43,661 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 16:32:43,661 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-21 16:32:43,661 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-21 16:32:43,662 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 16:32:43,662 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-21 16:32:43,663 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-21 16:32:43,663 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-21 16:32:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-21 16:32:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 16:32:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-21 16:32:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-21 16:32:43,665 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-21 16:32:43,665 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 16:32:43,666 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-21 16:32:43,666 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-21 16:32:43,666 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-21 16:32:43,666 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-21 16:32:43,666 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-21 16:32:43,666 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-21 16:32:43,666 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-21 16:32:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-21 16:32:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-21 16:32:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-21 16:32:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-21 16:32:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-21 16:32:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-21 16:32:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-21 16:32:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-21 16:32:43,668 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-21 16:32:43,668 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-21 16:32:43,668 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-21 16:32:43,668 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-21 16:32:43,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-21 16:32:43,668 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-21 16:32:43,668 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-21 16:32:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-21 16:32:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-21 16:32:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-21 16:32:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-21 16:32:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-21 16:32:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-21 16:32:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-21 16:32:43,670 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-21 16:32:43,670 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-21 16:32:43,670 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-21 16:32:43,670 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-21 16:32:43,670 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-21 16:32:43,671 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-21 16:32:43,671 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-21 16:32:43,671 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-21 16:32:43,672 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-21 16:32:43,672 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-21 16:32:43,672 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2020-08-21 16:32:43,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 16:32:43,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 16:32:43,672 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2020-08-21 16:32:43,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 16:32:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 16:32:43,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 16:32:43,674 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 16:32:43,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 16:32:43,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 16:32:43,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 16:32:44,181 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 16:32:44,182 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-21 16:32:44,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 04:32:44 BoogieIcfgContainer [2020-08-21 16:32:44,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 16:32:44,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 16:32:44,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 16:32:44,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 16:32:44,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 04:32:42" (1/3) ... [2020-08-21 16:32:44,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5535d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 04:32:44, skipping insertion in model container [2020-08-21 16:32:44,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:32:43" (2/3) ... [2020-08-21 16:32:44,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5535d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 04:32:44, skipping insertion in model container [2020-08-21 16:32:44,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 04:32:44" (3/3) ... [2020-08-21 16:32:44,193 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-1.i [2020-08-21 16:32:44,203 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 16:32:44,210 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 16:32:44,224 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 16:32:44,245 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 16:32:44,246 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 16:32:44,246 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 16:32:44,246 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 16:32:44,246 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 16:32:44,246 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 16:32:44,247 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 16:32:44,247 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 16:32:44,264 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-08-21 16:32:44,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-08-21 16:32:44,271 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:32:44,272 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1] [2020-08-21 16:32:44,272 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:32:44,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:32:44,278 INFO L82 PathProgramCache]: Analyzing trace with hash -125905961, now seen corresponding path program 1 times [2020-08-21 16:32:44,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:32:44,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [935893212] [2020-08-21 16:32:44,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:32:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:32:44,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:32:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:32:44,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 16:32:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:32:44,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 16:32:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:32:44,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-21 16:32:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:32:44,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-21 16:32:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:32:44,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-21 16:32:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:32:44,765 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 16:32:44,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [935893212] [2020-08-21 16:32:44,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:32:44,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 16:32:44,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716518371] [2020-08-21 16:32:44,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 16:32:44,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:32:44,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 16:32:44,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-08-21 16:32:44,791 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 8 states. [2020-08-21 16:32:45,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:32:45,205 INFO L93 Difference]: Finished difference Result 95 states and 133 transitions. [2020-08-21 16:32:45,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 16:32:45,207 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-08-21 16:32:45,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:32:45,217 INFO L225 Difference]: With dead ends: 95 [2020-08-21 16:32:45,217 INFO L226 Difference]: Without dead ends: 49 [2020-08-21 16:32:45,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2020-08-21 16:32:45,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-08-21 16:32:45,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2020-08-21 16:32:45,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-08-21 16:32:45,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2020-08-21 16:32:45,270 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 45 [2020-08-21 16:32:45,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:32:45,270 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2020-08-21 16:32:45,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 16:32:45,271 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2020-08-21 16:32:45,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-21 16:32:45,273 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:32:45,273 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:32:45,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 16:32:45,274 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:32:45,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:32:45,274 INFO L82 PathProgramCache]: Analyzing trace with hash 874015054, now seen corresponding path program 1 times [2020-08-21 16:32:45,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:32:45,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016555631] [2020-08-21 16:32:45,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:32:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:32:45,403 ERROR L253 erpolLogProxyWrapper]: Interpolant 12 not inductive [2020-08-21 16:32:45,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 16:32:45,405 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:849) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-08-21 16:32:45,414 INFO L168 Benchmark]: Toolchain (without parser) took 2598.17 ms. Allocated memory was 140.5 MB in the beginning and 235.9 MB in the end (delta: 95.4 MB). Free memory was 101.8 MB in the beginning and 127.7 MB in the end (delta: -25.8 MB). Peak memory consumption was 69.6 MB. Max. memory is 7.1 GB. [2020-08-21 16:32:45,416 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-08-21 16:32:45,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.07 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 101.8 MB in the beginning and 166.7 MB in the end (delta: -64.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-08-21 16:32:45,418 INFO L168 Benchmark]: Boogie Preprocessor took 60.56 ms. Allocated memory is still 201.9 MB. Free memory was 166.7 MB in the beginning and 163.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-08-21 16:32:45,420 INFO L168 Benchmark]: RCFGBuilder took 613.62 ms. Allocated memory is still 201.9 MB. Free memory was 163.8 MB in the beginning and 118.9 MB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. [2020-08-21 16:32:45,421 INFO L168 Benchmark]: TraceAbstraction took 1222.41 ms. Allocated memory was 201.9 MB in the beginning and 235.9 MB in the end (delta: 34.1 MB). Free memory was 118.0 MB in the beginning and 127.7 MB in the end (delta: -9.7 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-08-21 16:32:45,430 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 697.07 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 101.8 MB in the beginning and 166.7 MB in the end (delta: -64.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.56 ms. Allocated memory is still 201.9 MB. Free memory was 166.7 MB in the beginning and 163.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 613.62 ms. Allocated memory is still 201.9 MB. Free memory was 163.8 MB in the beginning and 118.9 MB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1222.41 ms. Allocated memory was 201.9 MB in the beginning and 235.9 MB in the end (delta: 34.1 MB). Free memory was 118.0 MB in the beginning and 127.7 MB in the end (delta: -9.7 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...