/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/EvenOdd03.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:14:26,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:14:26,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:14:26,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 13:14:26,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 13:14:26,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 13:14:26,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 13:14:26,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 13:14:26,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 13:14:26,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 13:14:26,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 13:14:26,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 13:14:26,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 13:14:26,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 13:14:26,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 13:14:26,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 13:14:26,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 13:14:26,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 13:14:26,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 13:14:26,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 13:14:26,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 13:14:26,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 13:14:26,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 13:14:26,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 13:14:26,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 13:14:26,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:14:26,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:14:26,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:14:26,845 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-23 13:14:26,896 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:14:26,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:14:26,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:14:26,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:14:26,902 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:14:26,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:14:26,902 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:14:26,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:14:26,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:14:26,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:14:26,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:14:26,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:14:26,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:14:26,905 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:14:26,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:14:26,905 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:14:26,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:14:26,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:14:26,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:14:26,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:14:26,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:14:26,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:14:26,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:14:26,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:14:26,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:14:26,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:14:26,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:14:26,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:14:26,908 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:14:27,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:14:27,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:14:27,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:14:27,320 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:14:27,320 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:14:27,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/EvenOdd03.c [2021-02-23 13:14:27,409 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a5a2aedb/e83259fc403a438aad44991e3dde14e1/FLAG62d13920b [2021-02-23 13:14:28,010 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:14:28,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/EvenOdd03.c [2021-02-23 13:14:28,018 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a5a2aedb/e83259fc403a438aad44991e3dde14e1/FLAG62d13920b [2021-02-23 13:14:28,387 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a5a2aedb/e83259fc403a438aad44991e3dde14e1 [2021-02-23 13:14:28,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:14:28,402 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:14:28,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:14:28,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:14:28,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:14:28,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:14:28" (1/1) ... [2021-02-23 13:14:28,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5687c21f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:14:28, skipping insertion in model container [2021-02-23 13:14:28,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:14:28" (1/1) ... [2021-02-23 13:14:28,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:14:28,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:14:28,599 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive/EvenOdd03.c[974,987] [2021-02-23 13:14:28,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:14:28,612 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:14:28,628 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive/EvenOdd03.c[974,987] [2021-02-23 13:14:28,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:14:28,642 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:14:28,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:14:28 WrapperNode [2021-02-23 13:14:28,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:14:28,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:14:28,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:14:28,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:14:28,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:14:28" (1/1) ... [2021-02-23 13:14:28,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:14:28" (1/1) ... [2021-02-23 13:14:28,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:14:28" (1/1) ... [2021-02-23 13:14:28,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:14:28" (1/1) ... [2021-02-23 13:14:28,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:14:28" (1/1) ... [2021-02-23 13:14:28,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:14:28" (1/1) ... [2021-02-23 13:14:28,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:14:28" (1/1) ... [2021-02-23 13:14:28,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:14:28,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:14:28,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:14:28,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:14:28,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:14:28" (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 [2021-02-23 13:14:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:14:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:14:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:14:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2021-02-23 13:14:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2021-02-23 13:14:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:14:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:14:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:14:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:14:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:14:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 13:14:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2021-02-23 13:14:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2021-02-23 13:14:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:14:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:14:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:14:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:14:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:14:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:14:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:14:29,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:14:29,032 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 13:14:29,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:14:29 BoogieIcfgContainer [2021-02-23 13:14:29,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:14:29,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:14:29,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:14:29,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:14:29,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:14:28" (1/3) ... [2021-02-23 13:14:29,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@80a47e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:14:29, skipping insertion in model container [2021-02-23 13:14:29,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:14:28" (2/3) ... [2021-02-23 13:14:29,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@80a47e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:14:29, skipping insertion in model container [2021-02-23 13:14:29,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:14:29" (3/3) ... [2021-02-23 13:14:29,045 INFO L111 eAbstractionObserver]: Analyzing ICFG EvenOdd03.c [2021-02-23 13:14:29,053 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:14:29,059 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:14:29,082 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:14:29,122 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:14:29,122 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:14:29,122 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:14:29,123 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:14:29,123 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:14:29,123 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:14:29,123 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:14:29,123 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:14:29,169 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2021-02-23 13:14:29,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-02-23 13:14:29,187 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:14:29,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:14:29,190 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:14:29,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:14:29,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1641143704, now seen corresponding path program 1 times [2021-02-23 13:14:29,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:14:29,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976988740] [2021-02-23 13:14:29,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:14:29,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:14:29,499 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:14:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:14:29,581 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:14:29,639 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-23 13:14:29,640 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 13:14:29,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:14:29,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 01:14:29 BoogieIcfgContainer [2021-02-23 13:14:29,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 13:14:29,707 INFO L168 Benchmark]: Toolchain (without parser) took 1312.28 ms. Allocated memory is still 163.6 MB. Free memory was 138.3 MB in the beginning and 98.0 MB in the end (delta: 40.3 MB). Peak memory consumption was 39.8 MB. Max. memory is 8.0 GB. [2021-02-23 13:14:29,710 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 163.6 MB. Free memory is still 135.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:14:29,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.60 ms. Allocated memory is still 163.6 MB. Free memory was 137.0 MB in the beginning and 127.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-02-23 13:14:29,714 INFO L168 Benchmark]: Boogie Preprocessor took 32.73 ms. Allocated memory is still 163.6 MB. Free memory was 127.7 MB in the beginning and 126.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 13:14:29,716 INFO L168 Benchmark]: RCFGBuilder took 357.71 ms. Allocated memory is still 163.6 MB. Free memory was 126.3 MB in the beginning and 111.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-23 13:14:29,717 INFO L168 Benchmark]: TraceAbstraction took 665.75 ms. Allocated memory is still 163.6 MB. Free memory was 111.6 MB in the beginning and 98.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-23 13:14:29,729 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 163.6 MB. Free memory is still 135.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 239.60 ms. Allocated memory is still 163.6 MB. Free memory was 137.0 MB in the beginning and 127.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.73 ms. Allocated memory is still 163.6 MB. Free memory was 127.7 MB in the beginning and 126.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 357.71 ms. Allocated memory is still 163.6 MB. Free memory was 126.3 MB in the beginning and 111.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 665.75 ms. Allocated memory is still 163.6 MB. Free memory was 111.6 MB in the beginning and 98.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 49]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L40] int n = __VERIFIER_nondet_int(); [L41] COND FALSE !(n < 0) VAL [n=0] [L44] CALL, EXPR isEven(n) VAL [\old(n)=0] [L29] COND TRUE n == 0 [L30] return 1; VAL [\old(n)=0, \result=1, n=0] [L44] RET, EXPR isEven(n) VAL [isEven(n)=1, n=0] [L44] int result = isEven(n); [L45] int mod = n % 2; VAL [mod=0, n=0, result=1] [L46] COND FALSE !(result < 0 || result == mod) VAL [mod=0, n=0, result=1] [L49] reach_error() VAL [mod=0, n=0, result=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 proved your program to be incorrect! Received shutdown request...