/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/ldv-regression/test26-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:29:12,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:29:12,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:29:12,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 22:29:12,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 22:29:12,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 22:29:12,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 22:29:12,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 22:29:12,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 22:29:12,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 22:29:12,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 22:29:12,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2020-11-06 22:29:12,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:29:12,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:29:12,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:29:12,258 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 [2020-11-06 22:29:12,285 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:29:12,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:29:12,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:29:12,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:29:12,287 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:29:12,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:29:12,287 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:29:12,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:29:12,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:29:12,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:29:12,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:29:12,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:29:12,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:29:12,289 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:29:12,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:29:12,289 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:29:12,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:29:12,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:29:12,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:29:12,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:29:12,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:29:12,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:29:12,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:29:12,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:29:12,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:29:12,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:29:12,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:29:12,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:29:12,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:29:12,292 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:29:12,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:29:12,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:29:12,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:29:12,728 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:29:12,729 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:29:12,730 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test26-2.c [2020-11-06 22:29:12,808 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/516051abc/cc93522b2b01440fbbd4a0730b87b71f/FLAG1fe628a4f [2020-11-06 22:29:13,354 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:29:13,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test26-2.c [2020-11-06 22:29:13,362 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/516051abc/cc93522b2b01440fbbd4a0730b87b71f/FLAG1fe628a4f [2020-11-06 22:29:13,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/516051abc/cc93522b2b01440fbbd4a0730b87b71f [2020-11-06 22:29:13,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:29:13,751 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:29:13,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:29:13,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:29:13,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:29:13,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:29:13" (1/1) ... [2020-11-06 22:29:13,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f78def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:13, skipping insertion in model container [2020-11-06 22:29:13,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:29:13" (1/1) ... [2020-11-06 22:29:13,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:29:13,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:29:14,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:29:14,032 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:29:14,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:29:14,064 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:29:14,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:14 WrapperNode [2020-11-06 22:29:14,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:29:14,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:29:14,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:29:14,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:29:14,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:14" (1/1) ... [2020-11-06 22:29:14,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:14" (1/1) ... [2020-11-06 22:29:14,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:14" (1/1) ... [2020-11-06 22:29:14,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:14" (1/1) ... [2020-11-06 22:29:14,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:14" (1/1) ... [2020-11-06 22:29:14,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:14" (1/1) ... [2020-11-06 22:29:14,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:14" (1/1) ... [2020-11-06 22:29:14,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:29:14,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:29:14,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:29:14,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:29:14,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:14" (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 [2020-11-06 22:29:14,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:29:14,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:29:14,183 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:29:14,183 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2020-11-06 22:29:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:29:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:29:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:29:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:29:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:29:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2020-11-06 22:29:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:29:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:29:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:29:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:29:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:29:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:29:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:29:14,460 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:29:14,461 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-06 22:29:14,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:29:14 BoogieIcfgContainer [2020-11-06 22:29:14,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:29:14,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:29:14,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:29:14,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:29:14,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:29:13" (1/3) ... [2020-11-06 22:29:14,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fac1aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:29:14, skipping insertion in model container [2020-11-06 22:29:14,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:14" (2/3) ... [2020-11-06 22:29:14,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fac1aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:29:14, skipping insertion in model container [2020-11-06 22:29:14,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:29:14" (3/3) ... [2020-11-06 22:29:14,472 INFO L111 eAbstractionObserver]: Analyzing ICFG test26-2.c [2020-11-06 22:29:14,491 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:29:14,495 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:29:14,510 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:29:14,538 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:29:14,538 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:29:14,538 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:29:14,539 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:29:14,539 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:29:14,539 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:29:14,539 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:29:14,539 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:29:14,557 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-11-06 22:29:14,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-06 22:29:14,563 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:29:14,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:29:14,564 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:29:14,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:29:14,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1634235034, now seen corresponding path program 1 times [2020-11-06 22:29:14,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:29:14,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100639641] [2020-11-06 22:29:14,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:29:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 22:29:14,789 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 22:29:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 22:29:14,830 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 22:29:14,866 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-06 22:29:14,867 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 22:29:14,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:29:14,905 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 54 could not be translated for associated CType STRUCT~~dummy?a~INT?b~INT# [2020-11-06 22:29:14,906 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 49 could not be translated for associated CType STRUCT~~dummy?a~INT?b~INT# [2020-11-06 22:29:14,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:29:14 BoogieIcfgContainer [2020-11-06 22:29:14,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:29:14,932 INFO L168 Benchmark]: Toolchain (without parser) took 1182.70 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 125.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 684.5 kB. Max. memory is 8.0 GB. [2020-11-06 22:29:14,933 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:29:14,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.92 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 116.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-06 22:29:14,938 INFO L168 Benchmark]: Boogie Preprocessor took 35.87 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-06 22:29:14,939 INFO L168 Benchmark]: RCFGBuilder took 360.38 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 102.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-11-06 22:29:14,940 INFO L168 Benchmark]: TraceAbstraction took 462.17 ms. Allocated memory is still 151.0 MB. Free memory was 102.2 MB in the beginning and 125.7 MB in the end (delta: -23.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:29:14,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 310.92 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 116.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.87 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 360.38 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 102.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 462.17 ms. Allocated memory is still 151.0 MB. Free memory was 102.2 MB in the beginning and 125.7 MB in the end (delta: -23.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 54 could not be translated for associated CType STRUCT~~dummy?a~INT?b~INT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 49 could not be translated for associated CType STRUCT~~dummy?a~INT?b~INT# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L5-L7] struct dummy { int a, b; } global = {0, 1}; VAL [\old(global)=null, \old(global)=null, global={5:0}] [L16] struct dummy *pd = &global; VAL [global={5:0}, pd={5:0}] [L18] CALL assign(&pd->b, &pd->b) VAL [global={5:0}, pa={5:4}, pb={5:4}] [L11] EXPR \read(*pb) [L11] *pa = *pb [L18] RET assign(&pd->b, &pd->b) VAL [global={5:0}, pd={5:0}] [L20] EXPR pd->a [L20] EXPR global.b VAL [global={5:0}, global.b=1, pd={5:0}, pd->a=0] [L20] COND TRUE pd->a != global.b [L26] CALL reach_error() VAL [global={5:0}] [L3] __assert_fail("0", "test26-2.c", 3, "reach_error") VAL [global={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 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=22occurred 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, 14 NumberOfCodeBlocks, 14 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...