/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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/array-lopstr16/motivex.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 09:25:21,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 09:25:21,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 09:25:21,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 09:25:21,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 09:25:21,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 09:25:21,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 09:25:21,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 09:25:21,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 09:25:21,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 09:25:21,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 09:25:21,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 09:25:21,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 09:25:21,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 09:25:21,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 09:25:21,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 09:25:21,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 09:25:21,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 09:25:21,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 09:25:21,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 09:25:21,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 09:25:21,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 09:25:21,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 09:25:21,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 09:25:21,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 09:25:21,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 09:25:21,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 09:25:21,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 09:25:21,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 09:25:21,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 09:25:21,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 09:25:21,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 09:25:21,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 09:25:21,937 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 09:25:21,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 09:25:21,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 09:25:21,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 09:25:21,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 09:25:21,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 09:25:21,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 09:25:21,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 09:25:21,959 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 [2020-10-28 09:25:22,010 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 09:25:22,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 09:25:22,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 09:25:22,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 09:25:22,015 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 09:25:22,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 09:25:22,015 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 09:25:22,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 09:25:22,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 09:25:22,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 09:25:22,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 09:25:22,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 09:25:22,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 09:25:22,017 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 09:25:22,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 09:25:22,018 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 09:25:22,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 09:25:22,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 09:25:22,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 09:25:22,019 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 09:25:22,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 09:25:22,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:25:22,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 09:25:22,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 09:25:22,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 09:25:22,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 09:25:22,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 09:25:22,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 09:25:22,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 09:25:22,020 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 09:25:22,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 09:25:22,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 09:25:22,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 09:25:22,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 09:25:22,458 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 09:25:22,461 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-lopstr16/motivex.i [2020-10-28 09:25:22,536 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abfb2a34d/80e3e17d49ff42ce9a0e1abeb134719e/FLAGb09b77a4d [2020-10-28 09:25:23,172 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 09:25:23,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-lopstr16/motivex.i [2020-10-28 09:25:23,181 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abfb2a34d/80e3e17d49ff42ce9a0e1abeb134719e/FLAGb09b77a4d [2020-10-28 09:25:23,541 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abfb2a34d/80e3e17d49ff42ce9a0e1abeb134719e [2020-10-28 09:25:23,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 09:25:23,553 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 09:25:23,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 09:25:23,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 09:25:23,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 09:25:23,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:25:23" (1/1) ... [2020-10-28 09:25:23,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@525e26ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:23, skipping insertion in model container [2020-10-28 09:25:23,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:25:23" (1/1) ... [2020-10-28 09:25:23,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 09:25:23,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 09:25:23,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:25:24,275 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 09:25:24,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:25:24,322 INFO L208 MainTranslator]: Completed translation [2020-10-28 09:25:24,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:24 WrapperNode [2020-10-28 09:25:24,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 09:25:24,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 09:25:24,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 09:25:24,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 09:25:24,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:24" (1/1) ... [2020-10-28 09:25:24,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:24" (1/1) ... [2020-10-28 09:25:24,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:24" (1/1) ... [2020-10-28 09:25:24,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:24" (1/1) ... [2020-10-28 09:25:24,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:24" (1/1) ... [2020-10-28 09:25:24,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:24" (1/1) ... [2020-10-28 09:25:24,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:24" (1/1) ... [2020-10-28 09:25:24,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 09:25:24,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 09:25:24,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 09:25:24,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 09:25:24,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:24" (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 [2020-10-28 09:25:24,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 09:25:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 09:25:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 09:25:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 09:25:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 09:25:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 09:25:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 09:25:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 09:25:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 09:25:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 09:25:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 09:25:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 09:25:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2020-10-28 09:25:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 09:25:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 09:25:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 09:25:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 09:25:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 09:25:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 09:25:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 09:25:24,945 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 09:25:24,946 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-28 09:25:24,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:25:24 BoogieIcfgContainer [2020-10-28 09:25:24,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 09:25:24,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 09:25:24,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 09:25:24,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 09:25:24,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:25:23" (1/3) ... [2020-10-28 09:25:24,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480f3849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:25:24, skipping insertion in model container [2020-10-28 09:25:24,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:24" (2/3) ... [2020-10-28 09:25:24,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480f3849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:25:24, skipping insertion in model container [2020-10-28 09:25:24,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:25:24" (3/3) ... [2020-10-28 09:25:24,958 INFO L111 eAbstractionObserver]: Analyzing ICFG motivex.i [2020-10-28 09:25:24,970 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 09:25:24,975 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 09:25:24,989 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 09:25:25,017 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 09:25:25,017 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 09:25:25,017 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 09:25:25,017 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 09:25:25,017 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 09:25:25,017 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 09:25:25,018 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 09:25:25,018 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 09:25:25,036 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-10-28 09:25:25,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-28 09:25:25,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:25:25,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:25:25,045 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:25:25,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:25:25,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1981251521, now seen corresponding path program 1 times [2020-10-28 09:25:25,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:25:25,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [75435890] [2020-10-28 09:25:25,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:25:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:25:25,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:25:25,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:25:25,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:25:25,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:25:26,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:25:26,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 09:25:26,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:25:26,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 997 [2020-10-28 09:25:26,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:25:26,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:25:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:25:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 09:25:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:25:26,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 09:25:26,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:25:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:25:26,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:25:26,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:25:26,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:25:26,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:25:26,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 09:25:26,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:25:26,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:25:26,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:25:26,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:25:26,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:25:26,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:25:26,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 09:25:26,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [75435890] [2020-10-28 09:25:26,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:25:26,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 09:25:26,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933720650] [2020-10-28 09:25:26,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 09:25:26,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:25:26,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 09:25:26,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 09:25:26,395 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2020-10-28 09:25:26,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:25:26,545 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2020-10-28 09:25:26,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 09:25:26,547 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-10-28 09:25:26,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:25:26,558 INFO L225 Difference]: With dead ends: 71 [2020-10-28 09:25:26,558 INFO L226 Difference]: Without dead ends: 37 [2020-10-28 09:25:26,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 09:25:26,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-28 09:25:26,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2020-10-28 09:25:26,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-28 09:25:26,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2020-10-28 09:25:26,618 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 18 [2020-10-28 09:25:26,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:25:26,619 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2020-10-28 09:25:26,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 09:25:26,619 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2020-10-28 09:25:26,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-28 09:25:26,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:25:26,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:25:26,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 09:25:26,621 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:25:26,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:25:26,622 INFO L82 PathProgramCache]: Analyzing trace with hash -594099280, now seen corresponding path program 1 times [2020-10-28 09:25:26,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:25:26,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014741997] [2020-10-28 09:25:26,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:25:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:25:26,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:25:26,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:25:26,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:25:26,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:25:27,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:25:27,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 09:25:27,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:25:27,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 841 [2020-10-28 09:25:27,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:25:27,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:25:27,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:25:27,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 09:25:27,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 09:25:27,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 09:25:27,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:25:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:25:27,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:25:27,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:25:27,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:25:27,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:25:27,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 09:25:27,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:25:27,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:25:27,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:25:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:25:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:25:27,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 09:25:27,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 09:25:27,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2014741997] [2020-10-28 09:25:27,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:25:27,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:25:27,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550606506] [2020-10-28 09:25:27,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:25:27,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:25:27,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:25:27,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:25:27,632 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 4 states. [2020-10-28 09:25:27,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:25:27,842 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2020-10-28 09:25:27,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 09:25:27,843 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-28 09:25:27,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:25:27,844 INFO L225 Difference]: With dead ends: 54 [2020-10-28 09:25:27,845 INFO L226 Difference]: Without dead ends: 36 [2020-10-28 09:25:27,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:25:27,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-28 09:25:27,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2020-10-28 09:25:27,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-28 09:25:27,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-10-28 09:25:27,864 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 18 [2020-10-28 09:25:27,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:25:27,864 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-10-28 09:25:27,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:25:27,864 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-10-28 09:25:27,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-28 09:25:27,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:25:27,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:25:27,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 09:25:27,867 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:25:27,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:25:27,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1369839687, now seen corresponding path program 1 times [2020-10-28 09:25:27,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:25:27,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [850789224] [2020-10-28 09:25:27,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:25:27,891 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-28 09:25:27,892 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-28 09:25:27,892 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 09:25:27,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 09:25:27,918 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-28 09:25:27,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:25:27 BoogieIcfgContainer [2020-10-28 09:25:27,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 09:25:27,925 INFO L168 Benchmark]: Toolchain (without parser) took 4373.09 ms. Allocated memory was 125.8 MB in the beginning and 215.0 MB in the end (delta: 89.1 MB). Free memory was 101.7 MB in the beginning and 159.1 MB in the end (delta: -57.5 MB). Peak memory consumption was 32.3 MB. Max. memory is 8.0 GB. [2020-10-28 09:25:27,926 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 125.8 MB. Free memory is still 100.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 09:25:27,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.57 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 101.1 MB in the beginning and 86.7 MB in the end (delta: 14.4 MB). Peak memory consumption was 40.2 MB. Max. memory is 8.0 GB. [2020-10-28 09:25:27,929 INFO L168 Benchmark]: Boogie Preprocessor took 47.38 ms. Allocated memory is still 151.0 MB. Free memory was 86.7 MB in the beginning and 85.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-28 09:25:27,930 INFO L168 Benchmark]: RCFGBuilder took 575.66 ms. Allocated memory is still 151.0 MB. Free memory was 85.2 MB in the beginning and 100.8 MB in the end (delta: -15.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 8.0 GB. [2020-10-28 09:25:27,933 INFO L168 Benchmark]: TraceAbstraction took 2969.61 ms. Allocated memory was 151.0 MB in the beginning and 215.0 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 159.1 MB in the end (delta: -58.9 MB). Peak memory consumption was 5.1 MB. Max. memory is 8.0 GB. [2020-10-28 09:25:27,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 125.8 MB. Free memory is still 100.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 765.57 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 101.1 MB in the beginning and 86.7 MB in the end (delta: 14.4 MB). Peak memory consumption was 40.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.38 ms. Allocated memory is still 151.0 MB. Free memory was 86.7 MB in the beginning and 85.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 575.66 ms. Allocated memory is still 151.0 MB. Free memory was 85.2 MB in the beginning and 100.8 MB in the end (delta: -15.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2969.61 ms. Allocated memory was 151.0 MB in the beginning and 215.0 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 159.1 MB in the end (delta: -58.9 MB). Peak memory consumption was 5.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L15-L18] struct S { unsigned short p; unsigned short q; } a[10000]; [L21] unsigned char k; [L22] int i; [L23] i = 0 [L23] COND TRUE i < 1000000 [L25] a[i].p = i [L26] a[i].q = i [L23] i++ [L23] COND FALSE !(i < 1000000) [L28] i = 0 [L28] COND TRUE i < 1000000 [L30] COND TRUE __VERIFIER_nondet_short() [L32] k = __VERIFIER_nondet_short() [L33] a[i].p = k [L34] a[i].q = k * k [L28] i++ [L28] COND FALSE !(i < 1000000) [L37] i = 0 [L37] COND TRUE i < 1000000 [L39] EXPR a[i].p [L39] EXPR a[i].q [L39] EXPR a[i].p == a[i].q || a[i].q == a[i].p * a[i].p [L39] CALL __VERIFIER_assert(a[i].p == a[i].q || a[i].q == a[i].p * a[i].p) [L13] COND TRUE !(cond) [L13] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "motivex.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 2.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 36 SDslu, 15 SDs, 0 SdLazy, 71 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 1734 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...