/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.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test02.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 00:16:42,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 00:16:42,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 00:16:42,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 00:16:42,902 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-22 00:16:42,919 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 00:16:42,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 00:16:42,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 00:16:42,922 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 00:16:42,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 00:16:42,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 00:16:42,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 00:16:42,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 00:16:42,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 00:16:42,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 00:16:42,923 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 00:16:42,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 00:16:42,926 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 00:16:42,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 00:16:42,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 00:16:42,926 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 00:16:42,927 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 00:16:42,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 00:16:42,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 00:16:42,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 00:16:42,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 00:16:42,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 00:16:42,928 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-22 00:16:43,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 00:16:43,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 00:16:43,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 00:16:43,414 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 00:16:43,415 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 00:16:43,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test02.c [2021-02-22 00:16:43,502 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e5483bbc/c06318ce6c654266a979546eb29c4d81/FLAG8ffde152e [2021-02-22 00:16:44,136 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 00:16:44,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test02.c [2021-02-22 00:16:44,145 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e5483bbc/c06318ce6c654266a979546eb29c4d81/FLAG8ffde152e [2021-02-22 00:16:44,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e5483bbc/c06318ce6c654266a979546eb29c4d81 [2021-02-22 00:16:44,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 00:16:44,518 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 00:16:44,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 00:16:44,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 00:16:44,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 00:16:44,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:16:44" (1/1) ... [2021-02-22 00:16:44,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6662e577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:44, skipping insertion in model container [2021-02-22 00:16:44,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:16:44" (1/1) ... [2021-02-22 00:16:44,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 00:16:44,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 00:16:44,739 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test02.c[413,426] [2021-02-22 00:16:44,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:16:44,753 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 00:16:44,769 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test02.c[413,426] [2021-02-22 00:16:44,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:16:44,786 INFO L208 MainTranslator]: Completed translation [2021-02-22 00:16:44,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:44 WrapperNode [2021-02-22 00:16:44,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 00:16:44,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 00:16:44,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 00:16:44,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 00:16:44,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:44" (1/1) ... [2021-02-22 00:16:44,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:44" (1/1) ... [2021-02-22 00:16:44,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:44" (1/1) ... [2021-02-22 00:16:44,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:44" (1/1) ... [2021-02-22 00:16:44,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:44" (1/1) ... [2021-02-22 00:16:44,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:44" (1/1) ... [2021-02-22 00:16:44,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:44" (1/1) ... [2021-02-22 00:16:44,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 00:16:44,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 00:16:44,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 00:16:44,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 00:16:44,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:44" (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 [2021-02-22 00:16:44,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 00:16:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 00:16:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 00:16:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 00:16:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 00:16:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 00:16:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 00:16:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 00:16:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 00:16:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 00:16:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 00:16:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 00:16:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 00:16:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 00:16:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 00:16:45,328 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 00:16:45,331 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 00:16:45,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:16:45 BoogieIcfgContainer [2021-02-22 00:16:45,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 00:16:45,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 00:16:45,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 00:16:45,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 00:16:45,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 12:16:44" (1/3) ... [2021-02-22 00:16:45,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbf5cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:16:45, skipping insertion in model container [2021-02-22 00:16:45,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:44" (2/3) ... [2021-02-22 00:16:45,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbf5cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:16:45, skipping insertion in model container [2021-02-22 00:16:45,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:16:45" (3/3) ... [2021-02-22 00:16:45,352 INFO L111 eAbstractionObserver]: Analyzing ICFG test02.c [2021-02-22 00:16:45,368 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 00:16:45,377 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 00:16:45,396 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 00:16:45,446 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 00:16:45,446 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 00:16:45,446 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-22 00:16:45,447 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 00:16:45,447 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 00:16:45,450 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 00:16:45,450 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 00:16:45,450 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 00:16:45,487 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2021-02-22 00:16:45,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-02-22 00:16:45,496 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:16:45,496 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] [2021-02-22 00:16:45,497 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:16:45,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:16:45,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1344963505, now seen corresponding path program 1 times [2021-02-22 00:16:45,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:16:45,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023200857] [2021-02-22 00:16:45,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:16:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:16:45,698 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:16:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:16:45,749 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:16:45,807 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 00:16:45,808 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 00:16:45,809 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 00:16:45,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 12:16:45 BoogieIcfgContainer [2021-02-22 00:16:45,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 00:16:45,880 INFO L168 Benchmark]: Toolchain (without parser) took 1370.46 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 119.8 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. [2021-02-22 00:16:45,882 INFO L168 Benchmark]: CDTParser took 0.91 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 00:16:45,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.76 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 116.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-02-22 00:16:45,889 INFO L168 Benchmark]: Boogie Preprocessor took 32.28 ms. Allocated memory is still 151.0 MB. Free memory was 116.0 MB in the beginning and 114.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 00:16:45,891 INFO L168 Benchmark]: RCFGBuilder took 514.82 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 101.5 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-22 00:16:45,892 INFO L168 Benchmark]: TraceAbstraction took 537.55 ms. Allocated memory is still 151.0 MB. Free memory was 100.9 MB in the beginning and 119.8 MB in the end (delta: -18.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 00:16:45,899 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 264.76 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 116.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.28 ms. Allocated memory is still 151.0 MB. Free memory was 116.0 MB in the beginning and 114.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 514.82 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 101.5 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 537.55 ms. Allocated memory is still 151.0 MB. Free memory was 100.9 MB in the beginning and 119.8 MB in the end (delta: -18.9 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 21]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6] int q; VAL [\old(q)=6, q=0] [L9] int a, b; VAL [\old(q)=0, a={32290:0}, q=0] [L10] int *p1 = &a; VAL [\old(q)=0, a={32290:0}, p1={32290:0}, q=0] [L11] int *p2 = p1; VAL [\old(q)=0, a={32290:0}, p1={32290:0}, p2={32290:0}, q=0] [L13] q = 0 VAL [\old(q)=0, a={32290:0}, p1={32290:0}, p2={32290:0}, q=0] [L15] COND TRUE p1 == p2 VAL [\old(q)=0, a={32290:0}, p1={32290:0}, p2={32290:0}, q=0] [L21] reach_error() VAL [\old(q)=0, a={32290:0}, p1={32290:0}, p2={32290:0}, q=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, 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=32occurred 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, 20 NumberOfCodeBlocks, 20 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...