/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/loops/nec40.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 10:00:39,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 10:00:39,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 10:00:39,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 10:00:39,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 10:00:39,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 10:00:39,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 10:00:39,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 10:00:39,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 10:00:39,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 10:00:39,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 10:00:39,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 10:00:39,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 10:00:39,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 10:00:39,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 10:00:39,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 10:00:39,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 10:00:39,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 10:00:39,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 10:00:39,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 10:00:39,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 10:00:39,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 10:00:39,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 10:00:39,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 10:00:39,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 10:00:39,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 10:00:39,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 10:00:39,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 10:00:39,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 10:00:39,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 10:00:39,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 10:00:39,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 10:00:39,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 10:00:39,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 10:00:39,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 10:00:39,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 10:00:39,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 10:00:39,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 10:00:39,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 10:00:39,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 10:00:39,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 10:00:39,883 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 [2020-10-29 10:00:39,957 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 10:00:39,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 10:00:39,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 10:00:39,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 10:00:39,961 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 10:00:39,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 10:00:39,962 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 10:00:39,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 10:00:39,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 10:00:39,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 10:00:39,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 10:00:39,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 10:00:39,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 10:00:39,965 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 10:00:39,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 10:00:39,966 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 10:00:39,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 10:00:39,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 10:00:39,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 10:00:39,967 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 10:00:39,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 10:00:39,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 10:00:39,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 10:00:39,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 10:00:39,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 10:00:39,969 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 10:00:39,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 10:00:39,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 10:00:39,970 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 10:00:39,970 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 10:00:40,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 10:00:40,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 10:00:40,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 10:00:40,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 10:00:40,420 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 10:00:40,421 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec40.c [2020-10-29 10:00:40,521 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84df0874f/b2542e2fdde44246ac4a6f40f9fed3d0/FLAGea6f3eff3 [2020-10-29 10:00:41,153 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 10:00:41,155 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/nec40.c [2020-10-29 10:00:41,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84df0874f/b2542e2fdde44246ac4a6f40f9fed3d0/FLAGea6f3eff3 [2020-10-29 10:00:41,532 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84df0874f/b2542e2fdde44246ac4a6f40f9fed3d0 [2020-10-29 10:00:41,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 10:00:41,546 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 10:00:41,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 10:00:41,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 10:00:41,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 10:00:41,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 10:00:41" (1/1) ... [2020-10-29 10:00:41,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4117af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:41, skipping insertion in model container [2020-10-29 10:00:41,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 10:00:41" (1/1) ... [2020-10-29 10:00:41,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 10:00:41,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 10:00:41,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 10:00:41,776 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 10:00:41,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 10:00:41,815 INFO L208 MainTranslator]: Completed translation [2020-10-29 10:00:41,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:41 WrapperNode [2020-10-29 10:00:41,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 10:00:41,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 10:00:41,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 10:00:41,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 10:00:41,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:41" (1/1) ... [2020-10-29 10:00:41,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:41" (1/1) ... [2020-10-29 10:00:41,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:41" (1/1) ... [2020-10-29 10:00:41,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:41" (1/1) ... [2020-10-29 10:00:41,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:41" (1/1) ... [2020-10-29 10:00:41,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:41" (1/1) ... [2020-10-29 10:00:41,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:41" (1/1) ... [2020-10-29 10:00:41,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 10:00:41,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 10:00:41,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 10:00:41,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 10:00:41,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:41" (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 [2020-10-29 10:00:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 10:00:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 10:00:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 10:00:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 10:00:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 10:00:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 10:00:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 10:00:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 10:00:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 10:00:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 10:00:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 10:00:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 10:00:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 10:00:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 10:00:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 10:00:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 10:00:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 10:00:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 10:00:42,422 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 10:00:42,423 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 10:00:42,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 10:00:42 BoogieIcfgContainer [2020-10-29 10:00:42,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 10:00:42,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 10:00:42,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 10:00:42,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 10:00:42,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 10:00:41" (1/3) ... [2020-10-29 10:00:42,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b36852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 10:00:42, skipping insertion in model container [2020-10-29 10:00:42,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:41" (2/3) ... [2020-10-29 10:00:42,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b36852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 10:00:42, skipping insertion in model container [2020-10-29 10:00:42,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 10:00:42" (3/3) ... [2020-10-29 10:00:42,435 INFO L111 eAbstractionObserver]: Analyzing ICFG nec40.c [2020-10-29 10:00:42,448 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 10:00:42,454 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 10:00:42,477 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 10:00:42,505 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 10:00:42,505 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 10:00:42,506 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 10:00:42,506 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 10:00:42,506 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 10:00:42,506 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 10:00:42,506 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 10:00:42,506 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 10:00:42,522 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-29 10:00:42,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-29 10:00:42,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:00:42,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:00:42,530 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:00:42,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:00:42,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1249392215, now seen corresponding path program 1 times [2020-10-29 10:00:42,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:00:42,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167058778] [2020-10-29 10:00:42,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:00:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:00:42,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:00:42,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:00:43,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:00:43,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:00:43,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 10:00:43,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 10:00:43,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 782 [2020-10-29 10:00:43,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:00:43,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:00:43,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 10:00:43,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 10:00:43,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 10:00:43,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-29 10:00:43,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:00:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:00:43,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:00:43,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:00:43,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:00:43,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:00:43,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 10:00:43,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:00:43,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:00:43,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:00:43,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:00:43,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:00:43,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:00:43,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:00:43,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [167058778] [2020-10-29 10:00:43,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:00:43,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 10:00:43,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020697355] [2020-10-29 10:00:43,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 10:00:43,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:00:43,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 10:00:43,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-29 10:00:43,822 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 6 states. [2020-10-29 10:00:44,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:00:44,119 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2020-10-29 10:00:44,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 10:00:44,122 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-29 10:00:44,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:00:44,132 INFO L225 Difference]: With dead ends: 53 [2020-10-29 10:00:44,133 INFO L226 Difference]: Without dead ends: 19 [2020-10-29 10:00:44,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 10:00:44,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-29 10:00:44,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-29 10:00:44,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-29 10:00:44,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-10-29 10:00:44,189 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2020-10-29 10:00:44,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:00:44,190 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-10-29 10:00:44,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 10:00:44,190 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-10-29 10:00:44,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-29 10:00:44,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:00:44,191 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:00:44,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 10:00:44,192 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:00:44,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:00:44,193 INFO L82 PathProgramCache]: Analyzing trace with hash 559935392, now seen corresponding path program 1 times [2020-10-29 10:00:44,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:00:44,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808083732] [2020-10-29 10:00:44,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:00:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:00:44,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:00:44,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:00:44,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:00:44,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-29 10:00:44,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 10:00:44,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 478 [2020-10-29 10:00:44,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:00:44,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:00:44,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 10:00:44,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 10:00:44,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 10:00:44,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:00:44,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:00:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:00:44,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:00:44,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:00:44,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:00:44,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:00:44,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 10:00:44,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:00:44,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:00:44,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:00:44,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:00:44,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:00:44,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:00:44,918 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:00:44,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808083732] [2020-10-29 10:00:44,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 10:00:44,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 10:00:44,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633795718] [2020-10-29 10:00:44,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 10:00:44,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:00:44,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 10:00:44,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 10:00:44,924 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 7 states. [2020-10-29 10:00:45,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:00:45,068 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-10-29 10:00:45,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 10:00:45,068 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-29 10:00:45,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:00:45,069 INFO L225 Difference]: With dead ends: 19 [2020-10-29 10:00:45,069 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 10:00:45,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-29 10:00:45,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 10:00:45,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 10:00:45,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 10:00:45,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 10:00:45,072 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-29 10:00:45,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:00:45,072 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 10:00:45,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 10:00:45,073 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 10:00:45,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 10:00:45,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 10:00:45,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 10:00:45,304 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-29 10:00:45,304 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-29 10:00:45,305 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-29 10:00:45,305 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-29 10:00:45,305 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 10:00:45,305 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~j~0 |old(~j~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#memory_int| |old(#memory_int)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= |~#x~0.offset| |old(~#x~0.offset)|) (= |~#y~0.offset| |old(~#y~0.offset)|) (= ~i~0 |old(~i~0)|) (= ~k~0 |old(~k~0)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#y~0.base| |old(~#y~0.base)|)) [2020-10-29 10:00:45,306 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 10:00:45,306 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 10:00:45,306 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| |~#x~0.base|) .cse0) (not (= |~#x~0.base| |~#y~0.base|)) (= .cse0 (select |#memory_int| |~#y~0.base|)))) [2020-10-29 10:00:45,306 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 10:00:45,306 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 10:00:45,307 INFO L274 CegarLoopResult]: For program point L27(lines 27 28) no Hoare annotation was computed. [2020-10-29 10:00:45,307 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 16 31) no Hoare annotation was computed. [2020-10-29 10:00:45,307 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 16 31) no Hoare annotation was computed. [2020-10-29 10:00:45,307 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 16 31) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (= |~#x~0.base| |~#y~0.base|) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#y~0.base|))) (and (= ~i~0 |old(~i~0)|) (= ~k~0 |old(~k~0)|) (= |#memory_int| |old(#memory_int)|)))) [2020-10-29 10:00:45,307 INFO L270 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#y~0.base|))) (= |~#y~0.base| |~#x~0.base|))) [2020-10-29 10:00:45,308 INFO L274 CegarLoopResult]: For program point L26(lines 26 28) no Hoare annotation was computed. [2020-10-29 10:00:45,308 INFO L274 CegarLoopResult]: For program point L26-1(lines 26 28) no Hoare annotation was computed. [2020-10-29 10:00:45,308 INFO L274 CegarLoopResult]: For program point L20-1(lines 20 23) no Hoare annotation was computed. [2020-10-29 10:00:45,308 INFO L270 CegarLoopResult]: At program point L20-3(lines 20 23) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (= |~#x~0.base| |~#y~0.base|) (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= .cse0 (select |#memory_int| |~#y~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#y~0.base|))))) [2020-10-29 10:00:45,308 INFO L274 CegarLoopResult]: For program point L20-4(lines 20 23) no Hoare annotation was computed. [2020-10-29 10:00:45,309 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2020-10-29 10:00:45,309 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 5 10) no Hoare annotation was computed. [2020-10-29 10:00:45,309 INFO L277 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: true [2020-10-29 10:00:45,309 INFO L274 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-10-29 10:00:45,309 INFO L274 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-10-29 10:00:45,309 INFO L274 CegarLoopResult]: For program point L6-2(lines 5 10) no Hoare annotation was computed. [2020-10-29 10:00:45,319 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) 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) [2020-10-29 10:00:45,325 INFO L168 Benchmark]: Toolchain (without parser) took 3783.80 ms. Allocated memory was 166.7 MB in the beginning and 200.3 MB in the end (delta: 33.6 MB). Free memory was 142.0 MB in the beginning and 141.6 MB in the end (delta: 332.4 kB). Peak memory consumption was 34.7 MB. Max. memory is 8.0 GB. [2020-10-29 10:00:45,325 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 166.7 MB. Free memory is still 141.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 10:00:45,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.14 ms. Allocated memory is still 166.7 MB. Free memory was 141.3 MB in the beginning and 131.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-29 10:00:45,328 INFO L168 Benchmark]: Boogie Preprocessor took 40.97 ms. Allocated memory is still 166.7 MB. Free memory was 131.9 MB in the beginning and 130.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-29 10:00:45,329 INFO L168 Benchmark]: RCFGBuilder took 565.26 ms. Allocated memory is still 166.7 MB. Free memory was 130.3 MB in the beginning and 115.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-29 10:00:45,330 INFO L168 Benchmark]: TraceAbstraction took 2894.87 ms. Allocated memory was 166.7 MB in the beginning and 200.3 MB in the end (delta: 33.6 MB). Free memory was 115.3 MB in the beginning and 141.6 MB in the end (delta: -26.4 MB). Peak memory consumption was 8.5 MB. Max. memory is 8.0 GB. [2020-10-29 10:00:45,334 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 166.7 MB. Free memory is still 141.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 266.14 ms. Allocated memory is still 166.7 MB. Free memory was 141.3 MB in the beginning and 131.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 40.97 ms. Allocated memory is still 166.7 MB. Free memory was 131.9 MB in the beginning and 130.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 565.26 ms. Allocated memory is still 166.7 MB. Free memory was 130.3 MB in the beginning and 115.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2894.87 ms. Allocated memory was 166.7 MB in the beginning and 200.3 MB in the end (delta: 33.6 MB). Free memory was 115.3 MB in the beginning and 141.6 MB in the end (delta: -26.4 MB). Peak memory consumption was 8.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...