/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/test30-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 06:18:24,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:18:24,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:18:24,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 06:18:24,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 06:18:24,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 06:18:24,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 06:18:24,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 06:18:24,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 06:18:24,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 06:18:24,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 06:18:24,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 06:18:24,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 06:18:24,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 06:18:24,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 06:18:24,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 06:18:24,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 06:18:24,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 06:18:24,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 06:18:24,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 06:18:24,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 06:18:24,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 06:18:24,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 06:18:24,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 06:18:24,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 06:18:24,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 06:18:24,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 06:18:24,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 06:18:24,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 06:18:24,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 06:18:24,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 06:18:24,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 06:18:24,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 06:18:24,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 06:18:24,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 06:18:24,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 06:18:24,587 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 06:18:24,637 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:18:24,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:18:24,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:18:24,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:18:24,642 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:18:24,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:18:24,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:18:24,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:18:24,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:18:24,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:18:24,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:18:24,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:18:24,646 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:18:24,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:18:24,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:18:24,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:18:24,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:18:24,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:18:24,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:18:24,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:18:24,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:18:24,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:18:24,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:18:24,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:18:24,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:18:24,649 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:18:25,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:18:25,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:18:25,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:18:25,098 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:18:25,099 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:18:25,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test30-2.c [2020-12-23 06:18:25,188 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/2d052911a/66c90fd162dc43eb9b2a260f1bcae4e6/FLAG9f8b9bb02 [2020-12-23 06:18:25,836 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:18:25,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-regression/test30-2.c [2020-12-23 06:18:25,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/2d052911a/66c90fd162dc43eb9b2a260f1bcae4e6/FLAG9f8b9bb02 [2020-12-23 06:18:26,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/2d052911a/66c90fd162dc43eb9b2a260f1bcae4e6 [2020-12-23 06:18:26,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:18:26,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:18:26,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:18:26,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:18:26,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:18:26,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:18:26" (1/1) ... [2020-12-23 06:18:26,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a65d01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:18:26, skipping insertion in model container [2020-12-23 06:18:26,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:18:26" (1/1) ... [2020-12-23 06:18:26,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:18:26,280 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: IdentifierExpression[~pa,] [2020-12-23 06:18:26,525 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-regression/test30-2.c[560,573] [2020-12-23 06:18:26,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:18:26,548 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: IdentifierExpression[~pa,] [2020-12-23 06:18:26,563 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-regression/test30-2.c[560,573] [2020-12-23 06:18:26,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:18:26,583 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:18:26,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:18:26 WrapperNode [2020-12-23 06:18:26,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:18:26,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:18:26,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:18:26,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:18:26,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:18:26" (1/1) ... [2020-12-23 06:18:26,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:18:26" (1/1) ... [2020-12-23 06:18:26,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:18:26,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:18:26,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:18:26,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:18:26,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:18:26" (1/1) ... [2020-12-23 06:18:26,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:18:26" (1/1) ... [2020-12-23 06:18:26,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:18:26" (1/1) ... [2020-12-23 06:18:26,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:18:26" (1/1) ... [2020-12-23 06:18:26,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:18:26" (1/1) ... [2020-12-23 06:18:26,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:18:26" (1/1) ... [2020-12-23 06:18:26,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:18:26" (1/1) ... [2020-12-23 06:18:26,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:18:26,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:18:26,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:18:26,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:18:26,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:18:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 06:18:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 06:18:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-23 06:18:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:18:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:18:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 06:18:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:18:26,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:18:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 06:18:27,081 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:18:27,081 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-23 06:18:27,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:18:27 BoogieIcfgContainer [2020-12-23 06:18:27,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:18:27,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:18:27,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:18:27,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:18:27,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:18:26" (1/3) ... [2020-12-23 06:18:27,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560b1c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:18:27, skipping insertion in model container [2020-12-23 06:18:27,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:18:26" (2/3) ... [2020-12-23 06:18:27,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560b1c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:18:27, skipping insertion in model container [2020-12-23 06:18:27,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:18:27" (3/3) ... [2020-12-23 06:18:27,093 INFO L111 eAbstractionObserver]: Analyzing ICFG test30-2.c [2020-12-23 06:18:27,101 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:18:27,108 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 06:18:27,131 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 06:18:27,164 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:18:27,165 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:18:27,165 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:18:27,165 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:18:27,165 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:18:27,165 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:18:27,165 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:18:27,166 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:18:27,187 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-12-23 06:18:27,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 06:18:27,194 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:18:27,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 06:18:27,195 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:18:27,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:18:27,207 INFO L82 PathProgramCache]: Analyzing trace with hash 889475945, now seen corresponding path program 1 times [2020-12-23 06:18:27,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:18:27,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350454446] [2020-12-23 06:18:27,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:18:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:18:27,525 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:18:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:18:27,613 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:18:27,667 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 06:18:27,668 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 06:18:27,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:18:27,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 06:18:27 BoogieIcfgContainer [2020-12-23 06:18:27,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 06:18:27,737 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 06:18:27,738 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 06:18:27,738 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 06:18:27,738 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:18:27" (3/4) ... [2020-12-23 06:18:27,744 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-23 06:18:27,823 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-regression/test30-2.c-witness.graphml [2020-12-23 06:18:27,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 06:18:27,828 INFO L168 Benchmark]: Toolchain (without parser) took 1592.28 ms. Allocated memory is still 154.1 MB. Free memory was 130.3 MB in the beginning and 118.0 MB in the end (delta: 12.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:18:27,828 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory is still 126.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:18:27,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.78 ms. Allocated memory is still 154.1 MB. Free memory was 130.1 MB in the beginning and 120.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-23 06:18:27,837 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.80 ms. Allocated memory is still 154.1 MB. Free memory was 120.3 MB in the beginning and 118.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:18:27,838 INFO L168 Benchmark]: Boogie Preprocessor took 27.25 ms. Allocated memory is still 154.1 MB. Free memory was 118.8 MB in the beginning and 117.8 MB in the end (delta: 987.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:18:27,839 INFO L168 Benchmark]: RCFGBuilder took 427.09 ms. Allocated memory is still 154.1 MB. Free memory was 117.7 MB in the beginning and 135.8 MB in the end (delta: -18.2 MB). Peak memory consumption was 17.3 MB. Max. memory is 8.0 GB. [2020-12-23 06:18:27,839 INFO L168 Benchmark]: TraceAbstraction took 648.38 ms. Allocated memory is still 154.1 MB. Free memory was 135.8 MB in the beginning and 120.1 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-23 06:18:27,840 INFO L168 Benchmark]: Witness Printer took 86.28 ms. Allocated memory is still 154.1 MB. Free memory was 120.1 MB in the beginning and 118.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:18:27,854 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 126.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 346.78 ms. Allocated memory is still 154.1 MB. Free memory was 130.1 MB in the beginning and 120.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 41.80 ms. Allocated memory is still 154.1 MB. Free memory was 120.3 MB in the beginning and 118.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.25 ms. Allocated memory is still 154.1 MB. Free memory was 118.8 MB in the beginning and 117.8 MB in the end (delta: 987.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 427.09 ms. Allocated memory is still 154.1 MB. Free memory was 117.7 MB in the beginning and 135.8 MB in the end (delta: -18.2 MB). Peak memory consumption was 17.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 648.38 ms. Allocated memory is still 154.1 MB. Free memory was 135.8 MB in the beginning and 120.1 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Witness Printer took 86.28 ms. Allocated memory is still 154.1 MB. Free memory was 120.1 MB in the beginning and 118.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * 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; [L7-L9] struct dummy { int *a, *b; } global = {&a, &b}; VAL [a={6:0}, b={3:0}, global={5:0}] [L23] struct dummy *pd = &global; [L18] \read(**pb) [L18] \read(**pb) [L13] EXPR \read(*pb) [L13] *pa = *pb [L27] EXPR \read(a) [L27] EXPR \read(b) VAL [a={6:0}, b={3:0}, global={5:0}] [L27] COND TRUE a != b [L33] reach_error() VAL [a={6:0}, b={3:0}, global={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, 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=10occurred 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, 6 NumberOfCodeBlocks, 6 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...