/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/vnew2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 07:54:17,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 07:54:17,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 07:54:17,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-16 07:54:17,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-16 07:54:17,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-16 07:54:17,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-16 07:54:17,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-16 07:54:17,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-16 07:54:17,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-16 07:54:17,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-16 07:54:17,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-16 07:54:17,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 07:54:17,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 07:54:17,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 07:54:17,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 07:54:17,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 07:54:17,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 07:54:17,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 07:54:18,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 07:54:18,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 07:54:18,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 07:54:18,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 07:54:18,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 07:54:18,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-16 07:54:18,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-16 07:54:18,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-16 07:54:18,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-16 07:54:18,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-16 07:54:18,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-16 07:54:18,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-16 07:54:18,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-16 07:54:18,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-16 07:54:18,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 07:54:18,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 07:54:18,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 07:54:18,033 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-04-16 07:54:18,051 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 07:54:18,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 07:54:18,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 07:54:18,055 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 07:54:18,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 07:54:18,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 07:54:18,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 07:54:18,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 07:54:18,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 07:54:18,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 07:54:18,056 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 07:54:18,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 07:54:18,057 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 07:54:18,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 07:54:18,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 07:54:18,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 07:54:18,057 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 07:54:18,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 07:54:18,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 07:54:18,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 07:54:18,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-04-16 07:54:18,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-16 07:54:18,057 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-04-16 07:54:18,058 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 07:54:18,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 07:54:18,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 07:54:18,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 07:54:18,404 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 07:54:18,405 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 07:54:18,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/vnew2.c [2021-04-16 07:54:18,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3917004ee/081bad83be2242db85af1b3361464f33/FLAGbacbc821c [2021-04-16 07:54:18,902 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 07:54:18,903 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew2.c [2021-04-16 07:54:18,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3917004ee/081bad83be2242db85af1b3361464f33/FLAGbacbc821c [2021-04-16 07:54:18,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3917004ee/081bad83be2242db85af1b3361464f33 [2021-04-16 07:54:18,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 07:54:18,941 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-16 07:54:18,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 07:54:18,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 07:54:18,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 07:54:18,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 07:54:18" (1/1) ... [2021-04-16 07:54:18,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1622913a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:54:18, skipping insertion in model container [2021-04-16 07:54:18,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 07:54:18" (1/1) ... [2021-04-16 07:54:18,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 07:54:18,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 07:54:19,098 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew2.c[403,416] [2021-04-16 07:54:19,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 07:54:19,124 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 07:54:19,168 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew2.c[403,416] [2021-04-16 07:54:19,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 07:54:19,192 INFO L208 MainTranslator]: Completed translation [2021-04-16 07:54:19,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:54:19 WrapperNode [2021-04-16 07:54:19,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 07:54:19,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 07:54:19,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 07:54:19,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 07:54:19,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:54:19" (1/1) ... [2021-04-16 07:54:19,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:54:19" (1/1) ... [2021-04-16 07:54:19,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:54:19" (1/1) ... [2021-04-16 07:54:19,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:54:19" (1/1) ... [2021-04-16 07:54:19,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:54:19" (1/1) ... [2021-04-16 07:54:19,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:54:19" (1/1) ... [2021-04-16 07:54:19,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:54:19" (1/1) ... [2021-04-16 07:54:19,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 07:54:19,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 07:54:19,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 07:54:19,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 07:54:19,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:54:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2021-04-16 07:54:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 07:54:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 07:54:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 07:54:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-16 07:54:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 07:54:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 07:54:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 07:54:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 07:54:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 07:54:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 07:54:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-16 07:54:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 07:54:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-04-16 07:54:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 07:54:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 07:54:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 07:54:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 07:54:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 07:54:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 07:54:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 07:54:19,513 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 07:54:19,513 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-04-16 07:54:19,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 07:54:19 BoogieIcfgContainer [2021-04-16 07:54:19,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 07:54:19,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 07:54:19,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 07:54:19,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 07:54:19,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 07:54:18" (1/3) ... [2021-04-16 07:54:19,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356efd64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 07:54:19, skipping insertion in model container [2021-04-16 07:54:19,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:54:19" (2/3) ... [2021-04-16 07:54:19,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356efd64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 07:54:19, skipping insertion in model container [2021-04-16 07:54:19,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 07:54:19" (3/3) ... [2021-04-16 07:54:19,524 INFO L111 eAbstractionObserver]: Analyzing ICFG vnew2.c [2021-04-16 07:54:19,528 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-04-16 07:54:19,552 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 07:54:19,565 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 07:54:19,601 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 07:54:19,601 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-16 07:54:19,601 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-04-16 07:54:19,601 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 07:54:19,601 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 07:54:19,602 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 07:54:19,602 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 07:54:19,602 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 07:54:19,634 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-04-16 07:54:19,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-04-16 07:54:19,640 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:54:19,641 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:54:19,641 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:54:19,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:54:19,656 INFO L82 PathProgramCache]: Analyzing trace with hash -818707046, now seen corresponding path program 1 times [2021-04-16 07:54:19,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:54:19,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681999544] [2021-04-16 07:54:19,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:54:19,728 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 07:54:19,806 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2021-04-16 07:54:19,806 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-04-16 07:54:19,810 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 07:54:19,824 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-04-16 07:54:19,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 07:54:19 BoogieIcfgContainer [2021-04-16 07:54:19,825 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-16 07:54:19,828 INFO L168 Benchmark]: Toolchain (without parser) took 885.09 ms. Allocated memory is still 195.0 MB. Free memory was 178.4 MB in the beginning and 149.9 MB in the end (delta: 28.6 MB). Peak memory consumption was 28.5 MB. Max. memory is 8.0 GB. [2021-04-16 07:54:19,830 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 195.0 MB. Free memory was 176.8 MB in the beginning and 176.8 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 07:54:19,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.68 ms. Allocated memory is still 195.0 MB. Free memory was 178.2 MB in the beginning and 177.3 MB in the end (delta: 917.5 kB). Peak memory consumption was 9.6 MB. Max. memory is 8.0 GB. [2021-04-16 07:54:19,833 INFO L168 Benchmark]: Boogie Preprocessor took 32.25 ms. Allocated memory is still 195.0 MB. Free memory was 177.3 MB in the beginning and 176.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-04-16 07:54:19,833 INFO L168 Benchmark]: RCFGBuilder took 289.01 ms. Allocated memory is still 195.0 MB. Free memory was 175.7 MB in the beginning and 161.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-04-16 07:54:19,834 INFO L168 Benchmark]: TraceAbstraction took 308.03 ms. Allocated memory is still 195.0 MB. Free memory was 161.3 MB in the beginning and 149.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-04-16 07:54:19,840 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 195.0 MB. Free memory was 176.8 MB in the beginning and 176.8 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 248.68 ms. Allocated memory is still 195.0 MB. Free memory was 178.2 MB in the beginning and 177.3 MB in the end (delta: 917.5 kB). Peak memory consumption was 9.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.25 ms. Allocated memory is still 195.0 MB. Free memory was 177.3 MB in the beginning and 176.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 289.01 ms. Allocated memory is still 195.0 MB. Free memory was 175.7 MB in the beginning and 161.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 308.03 ms. Allocated memory is still 195.0 MB. Free memory was 161.3 MB in the beginning and 149.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L14] int SIZE = 20000001; [L17] unsigned int n,i,k,j; [L18] n = __VERIFIER_nondet_uint() [L19] COND FALSE !(!(n <= SIZE)) [L20] EXPR k = 0 [L20] EXPR j = k = 0 [L20] i = j = k = 0 [L21] COND FALSE !(i < n) [L26] COND TRUE n>0 [L27] CALL __VERIFIER_assert( i==j && j==k && (i%(SIZE+2)) ) [L9] COND TRUE !(cond) [L10] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 211.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 31.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...