/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/loop-acceleration/simple_3-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:53:18,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:53:18,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:53:18,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 13:53:18,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 13:53:18,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 13:53:18,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 13:53:18,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 13:53:18,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 13:53:18,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 13:53:18,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 13:53:18,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 13:53:18,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 13:53:18,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 13:53:18,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 13:53:18,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 13:53:18,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 13:53:18,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 13:53:18,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 13:53:18,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 13:53:18,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 13:53:18,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 13:53:18,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 13:53:18,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 13:53:18,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 13:53:18,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:53:18,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:53:18,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:53:18,977 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 13:53:19,005 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:53:19,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:53:19,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:53:19,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:53:19,007 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:53:19,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:53:19,008 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:53:19,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:53:19,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:53:19,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:53:19,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:53:19,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:53:19,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:53:19,009 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:53:19,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:53:19,010 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:53:19,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:53:19,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:53:19,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:53:19,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:53:19,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:53:19,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:53:19,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:53:19,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:53:19,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:53:19,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:53:19,012 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:53:19,012 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:53:19,013 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:53:19,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:53:19,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:53:19,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:53:19,387 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:53:19,388 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:53:19,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_3-1.c [2021-02-23 13:53:19,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7393fcbe0/abb46727c2f647819ff166e052f3651d/FLAGdb981cefa [2021-02-23 13:53:20,195 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:53:20,195 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_3-1.c [2021-02-23 13:53:20,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7393fcbe0/abb46727c2f647819ff166e052f3651d/FLAGdb981cefa [2021-02-23 13:53:20,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7393fcbe0/abb46727c2f647819ff166e052f3651d [2021-02-23 13:53:20,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:53:20,593 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:53:20,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:53:20,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:53:20,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:53:20,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:53:20" (1/1) ... [2021-02-23 13:53:20,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ebcf40b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:20, skipping insertion in model container [2021-02-23 13:53:20,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:53:20" (1/1) ... [2021-02-23 13:53:20,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:53:20,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:53:20,773 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_3-1.c[376,389] [2021-02-23 13:53:20,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:53:20,798 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:53:20,813 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_3-1.c[376,389] [2021-02-23 13:53:20,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:53:20,832 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:53:20,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:20 WrapperNode [2021-02-23 13:53:20,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:53:20,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:53:20,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:53:20,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:53:20,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:20" (1/1) ... [2021-02-23 13:53:20,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:20" (1/1) ... [2021-02-23 13:53:20,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:20" (1/1) ... [2021-02-23 13:53:20,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:20" (1/1) ... [2021-02-23 13:53:20,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:20" (1/1) ... [2021-02-23 13:53:20,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:20" (1/1) ... [2021-02-23 13:53:20,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:20" (1/1) ... [2021-02-23 13:53:20,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:53:20,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:53:20,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:53:20,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:53:20,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:20" (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 13:53:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:53:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:53:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:53:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-23 13:53:20,977 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:53:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:53:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:53:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:53:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:53:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2021-02-23 13:53:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-23 13:53:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:53:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:53:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:53:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:53:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:53:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:53:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:53:21,309 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:53:21,309 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 13:53:21,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:53:21 BoogieIcfgContainer [2021-02-23 13:53:21,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:53:21,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:53:21,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:53:21,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:53:21,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:53:20" (1/3) ... [2021-02-23 13:53:21,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87c0707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:53:21, skipping insertion in model container [2021-02-23 13:53:21,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:20" (2/3) ... [2021-02-23 13:53:21,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87c0707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:53:21, skipping insertion in model container [2021-02-23 13:53:21,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:53:21" (3/3) ... [2021-02-23 13:53:21,337 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_3-1.c [2021-02-23 13:53:21,351 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:53:21,360 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:53:21,394 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:53:21,433 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:53:21,434 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:53:21,434 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:53:21,434 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:53:21,434 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:53:21,434 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:53:21,435 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:53:21,435 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:53:21,454 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2021-02-23 13:53:21,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-02-23 13:53:21,460 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:53:21,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:53:21,461 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:53:21,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:53:21,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1301225826, now seen corresponding path program 1 times [2021-02-23 13:53:21,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:53:21,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180885604] [2021-02-23 13:53:21,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:53:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:53:21,612 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:53:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:53:21,643 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:53:21,668 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-23 13:53:21,669 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 13:53:21,670 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:53:21,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 01:53:21 BoogieIcfgContainer [2021-02-23 13:53:21,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 13:53:21,701 INFO L168 Benchmark]: Toolchain (without parser) took 1117.63 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 121.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.7 MB. Max. memory is 8.0 GB. [2021-02-23 13:53:21,701 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:53:21,703 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.12 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 115.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 13:53:21,704 INFO L168 Benchmark]: Boogie Preprocessor took 36.12 ms. Allocated memory is still 151.0 MB. Free memory was 115.9 MB in the beginning and 114.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 13:53:21,705 INFO L168 Benchmark]: RCFGBuilder took 440.61 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 102.2 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-23 13:53:21,706 INFO L168 Benchmark]: TraceAbstraction took 382.14 ms. Allocated memory is still 151.0 MB. Free memory was 101.8 MB in the beginning and 121.1 MB in the end (delta: -19.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:53:21,709 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 231.12 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 115.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.12 ms. Allocated memory is still 151.0 MB. Free memory was 115.9 MB in the beginning and 114.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 440.61 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 102.2 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 382.14 ms. Allocated memory is still 151.0 MB. Free memory was 101.8 MB in the beginning and 121.1 MB in the end (delta: -19.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L14] unsigned int x = 0; [L15] unsigned short N = __VERIFIER_nondet_ushort(); [L17] COND FALSE !(x < N) VAL [N=0, x=0] [L21] CALL __VERIFIER_assert(x % 2) VAL [\old(cond)=0] [L7] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=18occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 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...