/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/test21-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 00:16:53,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 00:16:53,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 00:16:53,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 00:16:53,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 00:16:53,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 00:16:53,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 00:16:53,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 00:16:53,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 00:16:53,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 00:16:53,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 00:16:53,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 00:16:53,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 00:16:53,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 00:16:53,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 00:16:53,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 00:16:53,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 00:16:53,344 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 00:16:53,371 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 00:16:53,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 00:16:53,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 00:16:53,376 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 00:16:53,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 00:16:53,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 00:16:53,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 00:16:53,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 00:16:53,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 00:16:53,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 00:16:53,378 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 00:16:53,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 00:16:53,379 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 00:16:53,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 00:16:53,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 00:16:53,380 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 00:16:53,381 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 00:16:53,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 00:16:53,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 00:16:53,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 00:16:53,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 00:16:53,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 00:16:53,382 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-22 00:16:53,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 00:16:53,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 00:16:53,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 00:16:53,814 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 00:16:53,815 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 00:16:53,816 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test21-2.c [2021-02-22 00:16:53,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eb7f6d28/801c8daf6d5a4dc1b57c056788f5c1e0/FLAGab9335afa [2021-02-22 00:16:54,676 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 00:16:54,677 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test21-2.c [2021-02-22 00:16:54,685 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eb7f6d28/801c8daf6d5a4dc1b57c056788f5c1e0/FLAGab9335afa [2021-02-22 00:16:55,035 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eb7f6d28/801c8daf6d5a4dc1b57c056788f5c1e0 [2021-02-22 00:16:55,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 00:16:55,052 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 00:16:55,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 00:16:55,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 00:16:55,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 00:16:55,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:16:55" (1/1) ... [2021-02-22 00:16:55,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@558fa05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:55, skipping insertion in model container [2021-02-22 00:16:55,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:16:55" (1/1) ... [2021-02-22 00:16:55,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 00:16:55,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 00:16:55,260 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/test21-2.c[892,905] [2021-02-22 00:16:55,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:16:55,275 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 00:16:55,292 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/test21-2.c[892,905] [2021-02-22 00:16:55,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:16:55,311 INFO L208 MainTranslator]: Completed translation [2021-02-22 00:16:55,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:55 WrapperNode [2021-02-22 00:16:55,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 00:16:55,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 00:16:55,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 00:16:55,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 00:16:55,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:55" (1/1) ... [2021-02-22 00:16:55,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:55" (1/1) ... [2021-02-22 00:16:55,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:55" (1/1) ... [2021-02-22 00:16:55,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:55" (1/1) ... [2021-02-22 00:16:55,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:55" (1/1) ... [2021-02-22 00:16:55,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:55" (1/1) ... [2021-02-22 00:16:55,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:55" (1/1) ... [2021-02-22 00:16:55,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 00:16:55,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 00:16:55,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 00:16:55,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 00:16:55,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:55" (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 00:16:55,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 00:16:55,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 00:16:55,449 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 00:16:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2021-02-22 00:16:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2021-02-22 00:16:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2021-02-22 00:16:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 00:16:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 00:16:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 00:16:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 00:16:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 00:16:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 00:16:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2021-02-22 00:16:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure init [2021-02-22 00:16:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 00:16:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2021-02-22 00:16:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure check [2021-02-22 00:16:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 00:16:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 00:16:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 00:16:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 00:16:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 00:16:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 00:16:55,799 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 00:16:55,799 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 00:16:55,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:16:55 BoogieIcfgContainer [2021-02-22 00:16:55,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 00:16:55,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 00:16:55,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 00:16:55,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 00:16:55,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 12:16:55" (1/3) ... [2021-02-22 00:16:55,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4618db11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:16:55, skipping insertion in model container [2021-02-22 00:16:55,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:55" (2/3) ... [2021-02-22 00:16:55,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4618db11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:16:55, skipping insertion in model container [2021-02-22 00:16:55,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:16:55" (3/3) ... [2021-02-22 00:16:55,813 INFO L111 eAbstractionObserver]: Analyzing ICFG test21-2.c [2021-02-22 00:16:55,830 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 00:16:55,840 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 00:16:55,894 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 00:16:55,934 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 00:16:55,934 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 00:16:55,934 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-22 00:16:55,935 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 00:16:55,935 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 00:16:55,935 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 00:16:55,935 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 00:16:55,935 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 00:16:55,968 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2021-02-22 00:16:55,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-02-22 00:16:55,987 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:16:55,989 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:16:55,990 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:16:56,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:16:56,008 INFO L82 PathProgramCache]: Analyzing trace with hash 69938154, now seen corresponding path program 1 times [2021-02-22 00:16:56,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:16:56,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350871800] [2021-02-22 00:16:56,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:16:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:16:56,273 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:16:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:16:56,312 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:16:56,443 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 00:16:56,444 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 00:16:56,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 00:16:56,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 12:16:56 BoogieIcfgContainer [2021-02-22 00:16:56,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 00:16:56,533 INFO L168 Benchmark]: Toolchain (without parser) took 1491.53 ms. Allocated memory is still 165.7 MB. Free memory was 142.3 MB in the beginning and 132.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.6 MB. Max. memory is 8.0 GB. [2021-02-22 00:16:56,535 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 165.7 MB. Free memory is still 140.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 00:16:56,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.73 ms. Allocated memory is still 165.7 MB. Free memory was 141.2 MB in the beginning and 131.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-22 00:16:56,540 INFO L168 Benchmark]: Boogie Preprocessor took 37.62 ms. Allocated memory is still 165.7 MB. Free memory was 131.4 MB in the beginning and 129.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-22 00:16:56,541 INFO L168 Benchmark]: RCFGBuilder took 450.30 ms. Allocated memory is still 165.7 MB. Free memory was 129.8 MB in the beginning and 109.8 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-22 00:16:56,542 INFO L168 Benchmark]: TraceAbstraction took 726.07 ms. Allocated memory is still 165.7 MB. Free memory was 109.1 MB in the beginning and 132.2 MB in the end (delta: -23.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 00:16:56,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 165.7 MB. Free memory is still 140.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 257.73 ms. Allocated memory is still 165.7 MB. Free memory was 141.2 MB in the beginning and 131.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.62 ms. Allocated memory is still 165.7 MB. Free memory was 131.4 MB in the beginning and 129.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 450.30 ms. Allocated memory is still 165.7 MB. Free memory was 129.8 MB in the beginning and 109.8 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 726.07 ms. Allocated memory is still 165.7 MB. Free memory was 109.1 MB in the beginning and 132.2 MB in the end (delta: -23.1 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L11] struct dummy d1, d2; VAL [\old(d1)=5, \old(d1)=19, \old(d2)=13, \old(d2)=6, d1={16910:0}, d2={16911:0}] [L34] CALL init() VAL [d1={16910:0}, d2={16911:0}] [L15] d1.a = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=2147483646, d1={16910:0}, d2={16911:0}] [L16] d1.b = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=2147483647, d1={16910:0}, d2={16911:0}] [L18] d2.a = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=12618, d1={16910:0}, d2={16911:0}] [L19] d2.b = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=23612, d1={16910:0}, d2={16911:0}] [L34] RET init() VAL [d1={16910:0}, d2={16911:0}] [L35] CALL, EXPR get_dummy() VAL [d1={16910:0}, d2={16911:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=257, __VERIFIER_nondet_bool() ? &d1 : &d2={16910:0}, d1={16910:0}, d2={16911:0}] [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); VAL [\result={16910:0}, __VERIFIER_nondet_bool()=257, __VERIFIER_nondet_bool() ? &d1 : &d2={16910:0}, d1={16910:0}, d2={16911:0}] [L35] RET, EXPR get_dummy() VAL [d1={16910:0}, d2={16911:0}, get_dummy()={16910:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); VAL [d1={16910:0}, d2={16911:0}, get_dummy()={16910:0}, pd1={16910:0}] [L35] CALL, EXPR get_dummy() VAL [d1={16910:0}, d2={16911:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=255, __VERIFIER_nondet_bool() ? &d1 : &d2={16910:0}, d1={16910:0}, d2={16911:0}] [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); VAL [\result={16910:0}, __VERIFIER_nondet_bool()=255, __VERIFIER_nondet_bool() ? &d1 : &d2={16910:0}, d1={16910:0}, d2={16911:0}] [L35] RET, EXPR get_dummy() VAL [d1={16910:0}, d2={16911:0}, get_dummy()={16910:0}, pd1={16910:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); VAL [d1={16910:0}, d2={16911:0}, get_dummy()={16910:0}, pd1={16910:0}, pd2={16910:0}] [L36] COND TRUE pd1 != 0 && pd1 == pd2 VAL [d1={16910:0}, d2={16911:0}, pd1={16910:0}, pd2={16910:0}] [L37] CALL, EXPR check(pd1, pd2) VAL [d1={16910:0}, d2={16911:0}, s1={16910:0}, s2={16910:0}] [L29] EXPR s1->a VAL [d1={16910:0}, d2={16911:0}, s1={16910:0}, s1={16910:0}, s1->a=2147483646, s2={16910:0}, s2={16910:0}] [L29] EXPR s2->b VAL [d1={16910:0}, d2={16911:0}, s1={16910:0}, s1={16910:0}, s1->a=2147483646, s2={16910:0}, s2={16910:0}, s2->b=2147483647] [L29] return s1->a == s2->b; VAL [\result=0, d1={16910:0}, d2={16911:0}, s1={16910:0}, s1={16910:0}, s1->a=2147483646, s2={16910:0}, s2={16910:0}, s2->b=2147483647] [L37] RET, EXPR check(pd1, pd2) VAL [check(pd1, pd2)=0, d1={16910:0}, d2={16911:0}, pd1={16910:0}, pd2={16910:0}] [L37] COND TRUE !check(pd1, pd2) VAL [check(pd1, pd2)=0, d1={16910:0}, d2={16911:0}, pd1={16910:0}, pd2={16910:0}] [L44] reach_error() VAL [d1={16910:0}, d2={16911:0}, pd1={16910:0}, pd2={16910:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 2, 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=71occurred 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, 68 NumberOfCodeBlocks, 68 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...