/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/test30-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 00:16:58,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 00:16:58,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 00:16:58,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 00:16:58,483 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 00:16:58,506 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 00:16:58,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 00:16:58,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 00:16:58,512 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 00:16:58,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 00:16:58,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 00:16:58,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 00:16:58,513 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 00:16:58,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 00:16:58,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 00:16:58,514 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 00:16:58,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 00:16:58,515 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 00:16:58,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 00:16:58,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 00:16:58,515 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 00:16:58,516 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 00:16:58,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 00:16:58,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 00:16:58,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 00:16:58,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 00:16:58,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 00:16:58,517 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-22 00:16:58,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 00:16:58,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 00:16:58,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 00:16:58,964 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 00:16:58,964 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 00:16:58,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test30-2.c [2021-02-22 00:16:59,052 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df036e2b9/11c89f7871714afc99e4428b1da22869/FLAG2e982844c [2021-02-22 00:16:59,604 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 00:16:59,605 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test30-2.c [2021-02-22 00:16:59,612 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df036e2b9/11c89f7871714afc99e4428b1da22869/FLAG2e982844c [2021-02-22 00:16:59,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df036e2b9/11c89f7871714afc99e4428b1da22869 [2021-02-22 00:16:59,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 00:16:59,956 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 00:16:59,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 00:16:59,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 00:16:59,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 00:16:59,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:16:59" (1/1) ... [2021-02-22 00:16:59,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f851d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:59, skipping insertion in model container [2021-02-22 00:16:59,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:16:59" (1/1) ... [2021-02-22 00:16:59,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 00:16:59,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 00:17:00,149 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/test30-2.c[560,573] [2021-02-22 00:17:00,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:17:00,165 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 00:17:00,183 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/test30-2.c[560,573] [2021-02-22 00:17:00,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:17:00,203 INFO L208 MainTranslator]: Completed translation [2021-02-22 00:17:00,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:17:00 WrapperNode [2021-02-22 00:17:00,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 00:17:00,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 00:17:00,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 00:17:00,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 00:17:00,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:17:00" (1/1) ... [2021-02-22 00:17:00,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:17:00" (1/1) ... [2021-02-22 00:17:00,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:17:00" (1/1) ... [2021-02-22 00:17:00,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:17:00" (1/1) ... [2021-02-22 00:17:00,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:17:00" (1/1) ... [2021-02-22 00:17:00,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:17:00" (1/1) ... [2021-02-22 00:17:00,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:17:00" (1/1) ... [2021-02-22 00:17:00,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 00:17:00,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 00:17:00,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 00:17:00,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 00:17:00,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:17:00" (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 00:17:00,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 00:17:00,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 00:17:00,409 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 00:17:00,409 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2021-02-22 00:17:00,410 INFO L138 BoogieDeclarations]: Found implementation of procedure assign2 [2021-02-22 00:17:00,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 00:17:00,410 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 00:17:00,411 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 00:17:00,411 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 00:17:00,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 00:17:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2021-02-22 00:17:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 00:17:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 00:17:00,413 INFO L130 BoogieDeclarations]: Found specification of procedure assign2 [2021-02-22 00:17:00,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 00:17:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 00:17:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 00:17:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 00:17:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-02-22 00:17:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 00:17:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 00:17:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 00:17:00,908 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 00:17:00,909 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 00:17:00,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:17:00 BoogieIcfgContainer [2021-02-22 00:17:00,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 00:17:00,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 00:17:00,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 00:17:00,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 00:17:00,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 12:16:59" (1/3) ... [2021-02-22 00:17:00,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735cbb2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:17:00, skipping insertion in model container [2021-02-22 00:17:00,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:17:00" (2/3) ... [2021-02-22 00:17:00,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735cbb2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:17:00, skipping insertion in model container [2021-02-22 00:17:00,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:17:00" (3/3) ... [2021-02-22 00:17:00,921 INFO L111 eAbstractionObserver]: Analyzing ICFG test30-2.c [2021-02-22 00:17:00,930 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 00:17:00,937 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 00:17:00,959 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 00:17:00,985 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 00:17:00,985 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 00:17:00,985 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-22 00:17:00,985 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 00:17:00,986 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 00:17:00,986 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 00:17:00,986 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 00:17:00,986 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 00:17:01,002 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2021-02-22 00:17:01,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-02-22 00:17:01,013 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:17:01,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:17:01,014 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:17:01,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:17:01,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1432413787, now seen corresponding path program 1 times [2021-02-22 00:17:01,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:17:01,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208471709] [2021-02-22 00:17:01,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:17:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:17:01,193 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:17:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:17:01,260 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:17:01,376 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 00:17:01,377 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 00:17:01,377 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 00:17:01,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 12:17:01 BoogieIcfgContainer [2021-02-22 00:17:01,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 00:17:01,491 INFO L168 Benchmark]: Toolchain (without parser) took 1545.49 ms. Allocated memory is still 162.5 MB. Free memory was 119.9 MB in the beginning and 105.4 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.8 MB. Max. memory is 8.0 GB. [2021-02-22 00:17:01,494 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 162.5 MB. Free memory is still 137.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 00:17:01,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.40 ms. Allocated memory is still 162.5 MB. Free memory was 118.8 MB in the beginning and 108.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-22 00:17:01,498 INFO L168 Benchmark]: Boogie Preprocessor took 41.10 ms. Allocated memory is still 162.5 MB. Free memory was 108.4 MB in the beginning and 107.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 00:17:01,499 INFO L168 Benchmark]: RCFGBuilder took 664.00 ms. Allocated memory is still 162.5 MB. Free memory was 106.8 MB in the beginning and 129.5 MB in the end (delta: -22.8 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. [2021-02-22 00:17:01,503 INFO L168 Benchmark]: TraceAbstraction took 575.11 ms. Allocated memory is still 162.5 MB. Free memory was 129.0 MB in the beginning and 105.4 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-02-22 00:17:01,514 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 162.5 MB. Free memory is still 137.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 246.40 ms. Allocated memory is still 162.5 MB. Free memory was 118.8 MB in the beginning and 108.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.10 ms. Allocated memory is still 162.5 MB. Free memory was 108.4 MB in the beginning and 107.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 664.00 ms. Allocated memory is still 162.5 MB. Free memory was 106.8 MB in the beginning and 129.5 MB in the end (delta: -22.8 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 575.11 ms. Allocated memory is still 162.5 MB. Free memory was 129.0 MB in the beginning and 105.4 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 33]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5] int a = 1, b; VAL [\old(a)=9, \old(a)=22, \old(b)=23, \old(b)=16, \old(global)=null, \old(global)=null, a={5858:0}, b={5856:0}, global={17:7}] [L7-L9] struct dummy { int *a, *b; } global = {&a, &b}; VAL [\old(a)=22, \old(a)=9, \old(b)=23, \old(b)=16, \old(global)=null, \old(global)=null, a={5858:0}, b={5856:0}, global={5855:0}] [L23] struct dummy *pd = &global; VAL [a={5858:0}, b={5856:0}, global={5855:0}, pd={5855:0}] [L25] CALL assign2(&pd->a, &pd->b) VAL [a={5858:0}, b={5856:0}, global={5855:0}, pa={5855:0}, pb={5855:4}] [L18] EXPR \read(**pb) VAL [\read(**pb)={5856:0}, a={5858:0}, b={5856:0}, global={5855:0}, pa={5855:0}, pa={5855:0}, pb={5855:4}, pb={5855:4}] [L18] EXPR \read(**pb) VAL [\read(**pb)={5856:0}, \read(**pb)={5856:0}, a={5858:0}, b={5856:0}, global={5855:0}, pa={5855:0}, pa={5855:0}, pb={5855:4}, pb={5855:4}] [L18] CALL assign(*pb, *pb) VAL [a={5858:0}, b={5856:0}, global={5855:0}, pa={5856:0}, pb={5856:0}] [L13] EXPR \read(*pb) VAL [\read(*pb)=0, a={5858:0}, b={5856:0}, global={5855:0}, pa={5856:0}, pa={5856:0}, pb={5856:0}, pb={5856:0}] [L13] *pa = *pb VAL [\read(*pb)=0, a={5858:0}, b={5856:0}, global={5855:0}, pa={5856:0}, pa={5856:0}, pb={5856:0}, pb={5856:0}] [L18] RET assign(*pb, *pb) VAL [\read(**pb)={5856:0}, \read(**pb)={5856:0}, a={5858:0}, b={5856:0}, global={5855:0}, pa={5855:0}, pa={5855:0}, pb={5855:4}, pb={5855:4}] [L25] RET assign2(&pd->a, &pd->b) VAL [a={5858:0}, b={5856:0}, global={5855:0}, pd={5855:0}] [L27] EXPR \read(a) VAL [\read(a)=1, a={5858:0}, b={5856:0}, global={5855:0}, pd={5855:0}] [L27] EXPR \read(b) VAL [\read(a)=1, \read(b)=0, a={5858:0}, b={5856:0}, global={5855:0}, pd={5855:0}] [L27] COND TRUE a != b VAL [\read(a)=1, \read(b)=0, a={5858:0}, b={5856:0}, global={5855:0}, pd={5855:0}] [L33] reach_error() VAL [a={5858:0}, b={5856:0}, global={5855:0}, pd={5855:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 56 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=53occurred 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, 43 NumberOfCodeBlocks, 43 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...