/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-regression/test26-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 03:52:50,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 03:52:50,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 03:52:50,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 03:52:50,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 03:52:50,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 03:52:50,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 03:52:50,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 03:52:50,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 03:52:50,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 03:52:50,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 03:52:50,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 03:52:50,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 03:52:50,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 03:52:50,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 03:52:50,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 03:52:50,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 03:52:50,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 03:52:50,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 03:52:50,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 03:52:50,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 03:52:50,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 03:52:50,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 03:52:50,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 03:52:50,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 03:52:50,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 03:52:50,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 03:52:50,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 03:52:50,179 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 03:52:50,240 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 03:52:50,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 03:52:50,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 03:52:50,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 03:52:50,243 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 03:52:50,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 03:52:50,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 03:52:50,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 03:52:50,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 03:52:50,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 03:52:50,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 03:52:50,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 03:52:50,245 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 03:52:50,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 03:52:50,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 03:52:50,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 03:52:50,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 03:52:50,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 03:52:50,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 03:52:50,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 03:52:50,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 03:52:50,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 03:52:50,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 03:52:50,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 03:52:50,248 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 03:52:50,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 03:52:50,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 03:52:50,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 03:52:50,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 03:52:50,726 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 03:52:50,727 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 03:52:50,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test26-2.c [2020-12-22 03:52:50,808 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7adeabee0/b833211c38c348fda22d80c333fc18ee/FLAGbc6f4ed5e [2020-12-22 03:52:51,585 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 03:52:51,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test26-2.c [2020-12-22 03:52:51,595 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7adeabee0/b833211c38c348fda22d80c333fc18ee/FLAGbc6f4ed5e [2020-12-22 03:52:51,912 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7adeabee0/b833211c38c348fda22d80c333fc18ee [2020-12-22 03:52:51,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 03:52:51,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 03:52:51,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 03:52:51,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 03:52:51,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 03:52:51,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:52:51" (1/1) ... [2020-12-22 03:52:51,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7622a758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:51, skipping insertion in model container [2020-12-22 03:52:51,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:52:51" (1/1) ... [2020-12-22 03:52:51,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 03:52:51,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 03:52:52,150 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test26-2.c[493,506] [2020-12-22 03:52:52,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:52:52,169 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 03:52:52,187 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test26-2.c[493,506] [2020-12-22 03:52:52,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:52:52,207 INFO L208 MainTranslator]: Completed translation [2020-12-22 03:52:52,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:52 WrapperNode [2020-12-22 03:52:52,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 03:52:52,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 03:52:52,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 03:52:52,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 03:52:52,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:52" (1/1) ... [2020-12-22 03:52:52,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:52" (1/1) ... [2020-12-22 03:52:52,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 03:52:52,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 03:52:52,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 03:52:52,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 03:52:52,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:52" (1/1) ... [2020-12-22 03:52:52,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:52" (1/1) ... [2020-12-22 03:52:52,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:52" (1/1) ... [2020-12-22 03:52:52,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:52" (1/1) ... [2020-12-22 03:52:52,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:52" (1/1) ... [2020-12-22 03:52:52,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:52" (1/1) ... [2020-12-22 03:52:52,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:52" (1/1) ... [2020-12-22 03:52:52,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 03:52:52,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 03:52:52,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 03:52:52,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 03:52:52,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:52" (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 [2020-12-22 03:52:52,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 03:52:52,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 03:52:52,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 03:52:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 03:52:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 03:52:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 03:52:52,734 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 03:52:52,734 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-22 03:52:52,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:52:52 BoogieIcfgContainer [2020-12-22 03:52:52,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 03:52:52,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 03:52:52,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 03:52:52,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 03:52:52,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:52:51" (1/3) ... [2020-12-22 03:52:52,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a7fc5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:52:52, skipping insertion in model container [2020-12-22 03:52:52,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:52" (2/3) ... [2020-12-22 03:52:52,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a7fc5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:52:52, skipping insertion in model container [2020-12-22 03:52:52,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:52:52" (3/3) ... [2020-12-22 03:52:52,748 INFO L111 eAbstractionObserver]: Analyzing ICFG test26-2.c [2020-12-22 03:52:52,756 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 03:52:52,762 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 03:52:52,786 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 03:52:52,818 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 03:52:52,818 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 03:52:52,818 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 03:52:52,819 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 03:52:52,819 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 03:52:52,819 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 03:52:52,819 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 03:52:52,819 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 03:52:52,835 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-22 03:52:52,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-22 03:52:52,841 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:52:52,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-22 03:52:52,842 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:52:52,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:52:52,849 INFO L82 PathProgramCache]: Analyzing trace with hash 28692805, now seen corresponding path program 1 times [2020-12-22 03:52:52,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:52:52,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474273810] [2020-12-22 03:52:52,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:52:53,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 03:52:53,162 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 03:52:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 03:52:53,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 03:52:53,302 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 03:52:53,303 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 03:52:53,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 03:52:53,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 03:52:53 BoogieIcfgContainer [2020-12-22 03:52:53,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 03:52:53,358 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 03:52:53,359 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 03:52:53,359 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 03:52:53,360 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:52:52" (3/4) ... [2020-12-22 03:52:53,364 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 03:52:53,450 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-regression/test26-2.c-witness.graphml [2020-12-22 03:52:53,451 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 03:52:53,454 INFO L168 Benchmark]: Toolchain (without parser) took 1535.07 ms. Allocated memory is still 154.1 MB. Free memory was 129.3 MB in the beginning and 125.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.0 MB. Max. memory is 8.0 GB. [2020-12-22 03:52:53,455 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory is still 127.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:52:53,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.89 ms. Allocated memory is still 154.1 MB. Free memory was 129.1 MB in the beginning and 119.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 03:52:53,457 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.15 ms. Allocated memory is still 154.1 MB. Free memory was 119.7 MB in the beginning and 118.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 03:52:53,458 INFO L168 Benchmark]: Boogie Preprocessor took 26.82 ms. Allocated memory is still 154.1 MB. Free memory was 118.3 MB in the beginning and 117.3 MB in the end (delta: 993.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 03:52:53,459 INFO L168 Benchmark]: RCFGBuilder took 455.77 ms. Allocated memory is still 154.1 MB. Free memory was 117.3 MB in the beginning and 105.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-12-22 03:52:53,460 INFO L168 Benchmark]: TraceAbstraction took 615.96 ms. Allocated memory is still 154.1 MB. Free memory was 105.0 MB in the beginning and 127.3 MB in the end (delta: -22.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:52:53,461 INFO L168 Benchmark]: Witness Printer took 92.27 ms. Allocated memory is still 154.1 MB. Free memory was 127.3 MB in the beginning and 125.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 03:52:53,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory is still 127.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 288.89 ms. Allocated memory is still 154.1 MB. Free memory was 129.1 MB in the beginning and 119.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 43.15 ms. Allocated memory is still 154.1 MB. Free memory was 119.7 MB in the beginning and 118.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.82 ms. Allocated memory is still 154.1 MB. Free memory was 118.3 MB in the beginning and 117.3 MB in the end (delta: 993.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 455.77 ms. Allocated memory is still 154.1 MB. Free memory was 117.3 MB in the beginning and 105.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 615.96 ms. Allocated memory is still 154.1 MB. Free memory was 105.0 MB in the beginning and 127.3 MB in the end (delta: -22.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 92.27 ms. Allocated memory is still 154.1 MB. Free memory was 127.3 MB in the beginning and 125.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 26]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5-L7] struct dummy { int a, b; } global = {0, 1}; VAL [global={5:0}] [L16] struct dummy *pd = &global; [L11] EXPR \read(*pb) [L11] *pa = *pb [L20] EXPR pd->a [L20] EXPR global.b VAL [global={5:0}] [L20] COND TRUE pd->a != global.b [L26] reach_error() VAL [global={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, 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=9occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 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...