/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/test08.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:06:25,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:06:25,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:06:25,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:06:25,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:06:25,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:06:25,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:06:25,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:06:25,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:06:25,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:06:25,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:06:25,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:06:25,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:06:25,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:06:25,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:06:25,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:06:25,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:06:25,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:06:25,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:06:25,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:06:25,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:06:25,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:06:25,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:06:25,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:06:25,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:06:25,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:06:25,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:06:25,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:06:25,565 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 [2020-07-10 15:06:25,579 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:06:25,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:06:25,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:06:25,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:06:25,581 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:06:25,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:06:25,581 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:06:25,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:06:25,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:06:25,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:06:25,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:06:25,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:06:25,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:06:25,583 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:06:25,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:06:25,583 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:06:25,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:06:25,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:06:25,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:06:25,584 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:06:25,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:06:25,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:06:25,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:06:25,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:06:25,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:06:25,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:06:25,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:06:25,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:06:25,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:06:25,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:06:25,894 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:06:25,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:06:25,920 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:06:25,922 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:06:25,922 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:06:25,923 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test08.c [2020-07-10 15:06:26,001 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f5401b1/47c4d1e679d24cd9ae0f8a3241f7da1d/FLAG3d8bea4eb [2020-07-10 15:06:26,478 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:06:26,480 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test08.c [2020-07-10 15:06:26,487 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f5401b1/47c4d1e679d24cd9ae0f8a3241f7da1d/FLAG3d8bea4eb [2020-07-10 15:06:26,909 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f5401b1/47c4d1e679d24cd9ae0f8a3241f7da1d [2020-07-10 15:06:26,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:06:26,920 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:06:26,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:06:26,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:06:26,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:06:26,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:06:26" (1/1) ... [2020-07-10 15:06:26,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@135604c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:26, skipping insertion in model container [2020-07-10 15:06:26,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:06:26" (1/1) ... [2020-07-10 15:06:26,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:06:26,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:06:27,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:06:27,151 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:06:27,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:06:27,189 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:06:27,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:27 WrapperNode [2020-07-10 15:06:27,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:06:27,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:06:27,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:06:27,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:06:27,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:27" (1/1) ... [2020-07-10 15:06:27,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:27" (1/1) ... [2020-07-10 15:06:27,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:27" (1/1) ... [2020-07-10 15:06:27,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:27" (1/1) ... [2020-07-10 15:06:27,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:27" (1/1) ... [2020-07-10 15:06:27,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:27" (1/1) ... [2020-07-10 15:06:27,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:27" (1/1) ... [2020-07-10 15:06:27,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:06:27,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:06:27,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:06:27,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:06:27,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:27" (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 [2020-07-10 15:06:27,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:06:27,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:06:27,386 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-07-10 15:06:27,386 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:06:27,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:06:27,386 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-07-10 15:06:27,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 15:06:27,386 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:06:27,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 15:06:27,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:06:27,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 15:06:27,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-10 15:06:27,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:06:27,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 15:06:27,789 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:06:27,790 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-10 15:06:27,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:06:27 BoogieIcfgContainer [2020-07-10 15:06:27,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:06:27,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:06:27,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:06:27,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:06:27,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:06:26" (1/3) ... [2020-07-10 15:06:27,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e11e559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:06:27, skipping insertion in model container [2020-07-10 15:06:27,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:27" (2/3) ... [2020-07-10 15:06:27,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e11e559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:06:27, skipping insertion in model container [2020-07-10 15:06:27,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:06:27" (3/3) ... [2020-07-10 15:06:27,804 INFO L109 eAbstractionObserver]: Analyzing ICFG test08.c [2020-07-10 15:06:27,816 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:06:27,824 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:06:27,840 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:06:27,861 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:06:27,861 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:06:27,861 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:06:27,862 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:06:27,862 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:06:27,862 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:06:27,862 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:06:27,862 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:06:27,881 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-10 15:06:27,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-10 15:06:27,886 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:06:27,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:06:27,888 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:06:27,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:06:27,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1889415219, now seen corresponding path program 1 times [2020-07-10 15:06:27,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:06:27,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86440044] [2020-07-10 15:06:27,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:06:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:06:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:06:28,141 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 15:06:28,142 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 15:06:28,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:06:28,191 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 15:06:28,194 WARN L170 areAnnotationChecker]: fENTRY has no Hoare annotation [2020-07-10 15:06:28,195 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:06:28,195 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:06:28,195 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 15:06:28,195 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:06:28,196 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-10 15:06:28,196 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-10 15:06:28,196 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:06:28,196 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:06:28,196 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-10 15:06:28,196 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-10 15:06:28,197 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:06:28,197 WARN L170 areAnnotationChecker]: fFINAL has no Hoare annotation [2020-07-10 15:06:28,197 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:06:28,197 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2020-07-10 15:06:28,197 WARN L170 areAnnotationChecker]: fEXIT has no Hoare annotation [2020-07-10 15:06:28,198 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-10 15:06:28,198 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-10 15:06:28,198 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-10 15:06:28,198 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-10 15:06:28,199 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:06:28,199 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:06:28,199 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-10 15:06:28,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:06:28 BoogieIcfgContainer [2020-07-10 15:06:28,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:06:28,212 INFO L168 Benchmark]: Toolchain (without parser) took 1290.03 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 140.2 MB in the end (delta: -39.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:28,214 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-10 15:06:28,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.16 ms. Allocated memory is still 137.4 MB. Free memory was 100.7 MB in the beginning and 90.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:28,218 INFO L168 Benchmark]: Boogie Preprocessor took 123.01 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 90.2 MB in the beginning and 179.4 MB in the end (delta: -89.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:28,220 INFO L168 Benchmark]: RCFGBuilder took 480.24 ms. Allocated memory is still 201.3 MB. Free memory was 179.4 MB in the beginning and 158.6 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:28,221 INFO L168 Benchmark]: TraceAbstraction took 411.58 ms. Allocated memory is still 201.3 MB. Free memory was 158.0 MB in the beginning and 140.2 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:28,232 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 269.16 ms. Allocated memory is still 137.4 MB. Free memory was 100.7 MB in the beginning and 90.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.01 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 90.2 MB in the beginning and 179.4 MB in the end (delta: -89.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 480.24 ms. Allocated memory is still 201.3 MB. Free memory was 179.4 MB in the beginning and 158.6 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 411.58 ms. Allocated memory is still 201.3 MB. Free memory was 158.0 MB in the beginning and 140.2 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 36]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L4] int a, b; [L5] int *p1, *p2; VAL [\old(a)=5, \old(a)=10, \old(b)=13, \old(b)=8, \old(p1)=9, \old(p1)=14, \old(p2)=6, \old(p2)=11, a={3:0}, b={2:0}, p1={0:0}, p2={0:0}] [L19] p1 = &a [L20] p2 = &b [L22] b = 1 [L23] a = 5 [L25] EXPR \read(a) [L25] a-- [L27] CALL, EXPR f() VAL [\old(p1)=3, \old(p1)=0, \old(p2)=0, \old(p2)=0, a={3:0}, b={2:0}, p1={3:0}, p2={2:0}] [L8] EXPR \read(*p1) [L8] EXPR \read(*p2) [L8] EXPR \read(a) [L8] int v = *p1 + *p2 - a; [L9] COND TRUE v == 1 [L10] p1 = p2 [L11] return v; VAL [\old(p1)=3, \old(p1)=0, \old(p2)=0, \old(p2)=0, \result=1, a={3:0}, b={2:0}, p1={2:0}, p2={2:0}, v=1] [L27] RET, EXPR f() VAL [\old(p1)=0, \old(p1)=0, \old(p2)=0, \old(p2)=0, a={3:0}, b={2:0}, f()=1, p1={2:0}, p2={2:0}] [L27] a = f() [L29] EXPR \read(a) VAL [\old(p1)=0, \old(p1)=0, \old(p2)=0, \old(p2)=0, \read(a)=1, a={3:0}, b={2:0}, p1={2:0}, p2={2:0}] [L29] COND TRUE a && p1 == p2 [L36] __VERIFIER_error() VAL [\old(p1)=0, \old(p1)=0, \old(p2)=0, \old(p2)=0, a={3:0}, b={2:0}, p1={2:0}, p2={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=19occurred 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...