/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/float-benchs/zonotope_3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:40:53,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:40:53,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:40:53,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:40:53,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:40:53,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:40:53,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:40:53,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:40:53,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:40:53,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:40:53,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:40:53,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:40:53,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:40:53,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:40:53,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:40:53,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:40:53,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:40:53,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:40:53,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:40:53,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:40:53,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:40:53,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:40:53,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:40:53,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:40:53,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:40:53,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:40:53,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:40:53,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:40:53,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:40:53,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:40:53,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:40:53,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:40:53,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:40:53,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:40:53,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:40:53,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:40:53,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:40:53,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:40:53,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:40:53,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:40:53,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:40:53,503 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 19:40:53,553 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:40:53,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:40:53,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:40:53,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:40:53,558 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:40:53,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:40:53,558 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:40:53,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:40:53,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:40:53,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:40:53,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:40:53,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:40:53,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:40:53,561 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:40:53,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:40:53,561 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:40:53,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:40:53,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:40:53,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:40:53,562 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:40:53,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:40:53,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:40:53,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:40:53,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:40:53,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:40:53,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:40:53,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:40:53,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:40:53,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:40:53,564 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:40:53,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:40:54,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:40:54,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:40:54,018 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:40:54,018 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:40:54,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/zonotope_3.c [2020-10-27 19:40:54,097 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f66237c6f/b971a8439c18477cbe14701dc62dcfb7/FLAGb753c69c4 [2020-10-27 19:40:54,726 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:40:54,727 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-benchs/zonotope_3.c [2020-10-27 19:40:54,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f66237c6f/b971a8439c18477cbe14701dc62dcfb7/FLAGb753c69c4 [2020-10-27 19:40:55,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f66237c6f/b971a8439c18477cbe14701dc62dcfb7 [2020-10-27 19:40:55,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:40:55,089 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:40:55,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:40:55,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:40:55,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:40:55,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:40:55" (1/1) ... [2020-10-27 19:40:55,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e5fa0a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:40:55, skipping insertion in model container [2020-10-27 19:40:55,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:40:55" (1/1) ... [2020-10-27 19:40:55,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:40:55,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:40:55,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:40:55,344 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:40:55,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:40:55,384 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:40:55,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:40:55 WrapperNode [2020-10-27 19:40:55,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:40:55,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:40:55,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:40:55,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:40:55,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:40:55" (1/1) ... [2020-10-27 19:40:55,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:40:55" (1/1) ... [2020-10-27 19:40:55,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:40:55" (1/1) ... [2020-10-27 19:40:55,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:40:55" (1/1) ... [2020-10-27 19:40:55,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:40:55" (1/1) ... [2020-10-27 19:40:55,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:40:55" (1/1) ... [2020-10-27 19:40:55,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:40:55" (1/1) ... [2020-10-27 19:40:55,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:40:55,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:40:55,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:40:55,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:40:55,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:40:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:40:55,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:40:55,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:40:55,513 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:40:55,514 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 19:40:55,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-27 19:40:55,514 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-27 19:40:55,514 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-27 19:40:55,515 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:40:55,515 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:40:55,515 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:40:55,515 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:40:55,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:40:55,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-27 19:40:55,516 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 19:40:55,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-27 19:40:55,516 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-27 19:40:55,516 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-27 19:40:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:40:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:40:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:40:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:40:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:40:55,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:40:55,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:40:55,942 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:40:55,943 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 19:40:55,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:40:55 BoogieIcfgContainer [2020-10-27 19:40:55,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:40:55,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:40:55,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:40:55,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:40:55,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:40:55" (1/3) ... [2020-10-27 19:40:55,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9ed294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:40:55, skipping insertion in model container [2020-10-27 19:40:55,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:40:55" (2/3) ... [2020-10-27 19:40:55,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9ed294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:40:55, skipping insertion in model container [2020-10-27 19:40:55,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:40:55" (3/3) ... [2020-10-27 19:40:55,962 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_3.c [2020-10-27 19:40:55,976 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:40:55,981 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:40:55,997 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:40:56,041 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:40:56,041 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:40:56,042 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:40:56,042 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:40:56,042 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:40:56,042 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:40:56,042 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:40:56,042 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:40:56,071 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-10-27 19:40:56,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-27 19:40:56,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:40:56,080 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:40:56,080 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:40:56,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:40:56,089 INFO L82 PathProgramCache]: Analyzing trace with hash 575055679, now seen corresponding path program 1 times [2020-10-27 19:40:56,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:40:56,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443999645] [2020-10-27 19:40:56,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:40:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:56,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:56,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:56,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 19:40:56,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:56,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-27 19:40:56,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:56,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:40:56,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-27 19:40:56,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:40:56,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 19:40:56,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:40:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:56,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:56,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:56,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:40:56,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:56,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 19:40:56,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:56,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:40:56,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:40:56,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:40:56,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:40:56,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:40:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:56,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:56,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:56,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:40:56,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:56,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 19:40:56,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:56,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:40:56,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:40:56,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:40:56,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:40:56,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 19:40:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:56,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:56,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:56,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:40:56,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:56,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:40:56,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:40:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:40:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:40:56,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:40:56,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 19:40:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:56,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:56,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:56,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:40:56,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:56,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:40:56,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:40:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:40:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:40:56,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:40:56,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 19:40:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:56,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:56,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:56,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:40:56,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:56,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:40:56,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:56,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:40:56,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:40:56,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:40:56,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:40:56,688 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 19:40:56,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443999645] [2020-10-27 19:40:56,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:40:56,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 19:40:56,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304487321] [2020-10-27 19:40:56,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 19:40:56,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:40:56,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 19:40:56,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 19:40:56,727 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 3 states. [2020-10-27 19:40:56,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:40:56,919 INFO L93 Difference]: Finished difference Result 87 states and 104 transitions. [2020-10-27 19:40:56,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:40:56,922 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-10-27 19:40:56,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:40:56,932 INFO L225 Difference]: With dead ends: 87 [2020-10-27 19:40:56,932 INFO L226 Difference]: Without dead ends: 42 [2020-10-27 19:40:56,936 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 19:40:56,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-27 19:40:56,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-27 19:40:56,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-27 19:40:56,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2020-10-27 19:40:56,995 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 33 [2020-10-27 19:40:56,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:40:56,998 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2020-10-27 19:40:56,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 19:40:56,998 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2020-10-27 19:40:57,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-27 19:40:57,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:40:57,001 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:40:57,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:40:57,001 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:40:57,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:40:57,002 INFO L82 PathProgramCache]: Analyzing trace with hash 147402352, now seen corresponding path program 1 times [2020-10-27 19:40:57,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:40:57,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [847607898] [2020-10-27 19:40:57,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:40:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:57,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:57,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:57,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 19:40:57,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:57,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-27 19:40:57,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:57,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 19:40:57,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-27 19:40:57,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 19:40:57,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:40:57,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:40:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:57,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:57,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:57,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:40:57,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:57,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 19:40:57,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:57,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:40:57,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:40:57,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:40:57,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:40:57,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:40:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:57,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:57,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:57,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:40:57,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:57,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:40:57,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:57,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:40:57,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:40:57,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:40:57,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:40:57,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 19:40:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:57,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:57,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:57,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:40:57,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:57,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:40:57,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:57,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:40:57,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:40:57,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:40:57,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:40:57,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 19:40:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:57,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:57,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:57,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:40:57,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:57,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:40:57,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:57,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:40:57,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:40:57,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:40:57,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:40:57,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 19:40:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:57,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:57,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:57,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:40:57,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:57,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:40:57,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:57,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:40:57,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:40:57,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:40:57,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:40:57,284 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 19:40:57,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [847607898] [2020-10-27 19:40:57,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:40:57,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:40:57,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467089152] [2020-10-27 19:40:57,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:40:57,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:40:57,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:40:57,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:40:57,289 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 4 states. [2020-10-27 19:40:57,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:40:57,657 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2020-10-27 19:40:57,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 19:40:57,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-27 19:40:57,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:40:57,660 INFO L225 Difference]: With dead ends: 60 [2020-10-27 19:40:57,660 INFO L226 Difference]: Without dead ends: 53 [2020-10-27 19:40:57,661 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:40:57,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-27 19:40:57,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 43. [2020-10-27 19:40:57,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-27 19:40:57,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2020-10-27 19:40:57,677 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 33 [2020-10-27 19:40:57,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:40:57,677 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2020-10-27 19:40:57,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:40:57,678 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2020-10-27 19:40:57,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-27 19:40:57,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:40:57,680 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:40:57,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:40:57,681 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:40:57,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:40:57,681 INFO L82 PathProgramCache]: Analyzing trace with hash -514465681, now seen corresponding path program 1 times [2020-10-27 19:40:57,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:40:57,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297197962] [2020-10-27 19:40:57,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:40:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:57,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:57,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:57,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-27 19:40:57,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:57,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-27 19:40:57,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:57,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:40:57,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-27 19:40:57,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 19:40:57,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:40:57,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:40:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:57,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:57,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:57,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:40:57,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:57,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 19:40:57,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:57,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:40:57,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:40:57,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:40:57,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:40:57,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:40:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:57,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:57,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:57,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:40:57,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:57,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:40:57,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:57,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:40:57,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:40:57,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:40:57,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:40:57,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 19:40:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:58,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:58,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:58,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:40:58,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:58,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 19:40:58,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:58,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:40:58,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:40:58,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:40:58,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:40:58,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 19:40:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:58,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:58,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:58,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:40:58,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:58,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:40:58,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:58,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:40:58,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:40:58,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:40:58,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:40:58,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 19:40:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:40:58,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:40:58,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:40:58,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:40:58,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:40:58,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 19:40:58,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:40:58,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:40:58,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:40:58,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:40:58,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:40:58,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 19:40:58,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 19:40:58,039 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) 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:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) 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:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:557) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertLocalVarAssignemntPendingContext(AnnotateAndAssertCodeBlocks.java:169) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:120) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) ... 30 more [2020-10-27 19:40:58,051 INFO L168 Benchmark]: Toolchain (without parser) took 2962.83 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 76.2 MB in the end (delta: 50.1 MB). Peak memory consumption was 51.2 MB. Max. memory is 8.0 GB. [2020-10-27 19:40:58,051 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 122.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:40:58,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.27 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 115.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 19:40:58,055 INFO L168 Benchmark]: Boogie Preprocessor took 42.44 ms. Allocated memory is still 151.0 MB. Free memory was 115.7 MB in the beginning and 114.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:40:58,056 INFO L168 Benchmark]: RCFGBuilder took 518.64 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 132.4 MB in the end (delta: -18.3 MB). Peak memory consumption was 17.6 MB. Max. memory is 8.0 GB. [2020-10-27 19:40:58,058 INFO L168 Benchmark]: TraceAbstraction took 2093.82 ms. Allocated memory is still 151.0 MB. Free memory was 131.9 MB in the beginning and 76.2 MB in the end (delta: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:40:58,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 122.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 291.27 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 115.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 42.44 ms. Allocated memory is still 151.0 MB. Free memory was 115.7 MB in the beginning and 114.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 518.64 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 132.4 MB in the end (delta: -18.3 MB). Peak memory consumption was 17.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2093.82 ms. Allocated memory is still 151.0 MB. Free memory was 131.9 MB in the beginning and 76.2 MB in the end (delta: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...