/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/test06.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:06:19,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:06:19,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:06:19,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:06:19,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:06:19,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:06:19,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:06:19,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:06:19,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:06:19,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:06:19,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:06:19,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:06:19,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:06:19,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:06:19,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:06:19,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:06:19,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:06:19,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:06:19,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:06:19,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:06:19,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:06:19,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:06:19,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:06:19,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:06:19,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:06:19,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:06:19,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:06:19,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:06:19,427 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 15:06:19,441 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:06:19,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:06:19,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:06:19,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:06:19,443 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:06:19,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:06:19,443 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:06:19,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:06:19,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:06:19,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:06:19,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:06:19,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:06:19,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:06:19,444 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:06:19,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:06:19,445 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:06:19,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:06:19,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:06:19,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:06:19,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:06:19,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:06:19,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:06:19,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:06:19,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:06:19,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:06:19,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:06:19,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:06:19,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:06:19,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:06:19,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:06:19,741 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:06:19,754 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:06:19,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:06:19,760 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:06:19,760 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:06:19,761 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test06.c [2020-07-10 15:06:19,824 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c1934642/df4094bf869741398df35ff097c0580e/FLAGabd2b3213 [2020-07-10 15:06:20,224 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:06:20,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test06.c [2020-07-10 15:06:20,229 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c1934642/df4094bf869741398df35ff097c0580e/FLAGabd2b3213 [2020-07-10 15:06:20,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c1934642/df4094bf869741398df35ff097c0580e [2020-07-10 15:06:20,620 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:06:20,622 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:06:20,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:06:20,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:06:20,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:06:20,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:06:20" (1/1) ... [2020-07-10 15:06:20,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ef63e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:20, skipping insertion in model container [2020-07-10 15:06:20,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:06:20" (1/1) ... [2020-07-10 15:06:20,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:06:20,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:06:20,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:06:20,836 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:06:20,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:06:20,871 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:06:20,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:20 WrapperNode [2020-07-10 15:06:20,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:06:20,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:06:20,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:06:20,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:06:20,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:20" (1/1) ... [2020-07-10 15:06:20,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:20" (1/1) ... [2020-07-10 15:06:20,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:20" (1/1) ... [2020-07-10 15:06:20,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:20" (1/1) ... [2020-07-10 15:06:21,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:20" (1/1) ... [2020-07-10 15:06:21,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:20" (1/1) ... [2020-07-10 15:06:21,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:20" (1/1) ... [2020-07-10 15:06:21,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:06:21,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:06:21,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:06:21,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:06:21,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:20" (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 15:06:21,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:06:21,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:06:21,107 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-07-10 15:06:21,107 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-07-10 15:06:21,108 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:06:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:06:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-07-10 15:06:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-10 15:06:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-10 15:06:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 15:06:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-07-10 15:06:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:06:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 15:06:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 15:06:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 15:06:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:06:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:06:21,580 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:06:21,581 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-10 15:06:21,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:06:21 BoogieIcfgContainer [2020-07-10 15:06:21,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:06:21,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:06:21,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:06:21,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:06:21,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:06:20" (1/3) ... [2020-07-10 15:06:21,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76173e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:06:21, skipping insertion in model container [2020-07-10 15:06:21,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:20" (2/3) ... [2020-07-10 15:06:21,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76173e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:06:21, skipping insertion in model container [2020-07-10 15:06:21,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:06:21" (3/3) ... [2020-07-10 15:06:21,593 INFO L109 eAbstractionObserver]: Analyzing ICFG test06.c [2020-07-10 15:06:21,601 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:06:21,608 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:06:21,622 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:06:21,645 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:06:21,645 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:06:21,645 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:06:21,645 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:06:21,645 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:06:21,646 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:06:21,646 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:06:21,646 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:06:21,664 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-07-10 15:06:21,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-10 15:06:21,670 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:06:21,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:06:21,672 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:06:21,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:06:21,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1199829752, now seen corresponding path program 1 times [2020-07-10 15:06:21,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:06:21,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602861815] [2020-07-10 15:06:21,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:06:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:06:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:06:21,965 INFO L280 TraceCheckUtils]: 0: Hoare triple {37#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {27#true} is VALID [2020-07-10 15:06:21,965 INFO L280 TraceCheckUtils]: 1: Hoare triple {27#true} assume true; {27#true} is VALID [2020-07-10 15:06:21,966 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {27#true} {27#true} #29#return; {27#true} is VALID [2020-07-10 15:06:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:06:22,033 INFO L280 TraceCheckUtils]: 0: Hoare triple {38#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~a := #in~a;~p1.base, ~p1.offset := #in~p1.base, #in~p1.offset;~p2.base, ~p2.offset := #in~p2.base, #in~p2.offset; {39#(= |f_#in~a| f_~a)} is VALID [2020-07-10 15:06:22,035 INFO L280 TraceCheckUtils]: 1: Hoare triple {39#(= |f_#in~a| f_~a)} assume !(4 == ~a);#res := 0; {40#(not (= 4 |f_#in~a|))} is VALID [2020-07-10 15:06:22,036 INFO L280 TraceCheckUtils]: 2: Hoare triple {40#(not (= 4 |f_#in~a|))} assume true; {40#(not (= 4 |f_#in~a|))} is VALID [2020-07-10 15:06:22,039 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {40#(not (= 4 |f_#in~a|))} {32#(= 4 |main_#t~mem4|)} #33#return; {28#false} is VALID [2020-07-10 15:06:22,040 INFO L263 TraceCheckUtils]: 0: Hoare triple {27#true} call ULTIMATE.init(); {37#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 15:06:22,041 INFO L280 TraceCheckUtils]: 1: Hoare triple {37#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {27#true} is VALID [2020-07-10 15:06:22,041 INFO L280 TraceCheckUtils]: 2: Hoare triple {27#true} assume true; {27#true} is VALID [2020-07-10 15:06:22,042 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {27#true} {27#true} #29#return; {27#true} is VALID [2020-07-10 15:06:22,042 INFO L263 TraceCheckUtils]: 4: Hoare triple {27#true} call #t~ret8 := main(); {27#true} is VALID [2020-07-10 15:06:22,047 INFO L280 TraceCheckUtils]: 5: Hoare triple {27#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.allocOnStack(4);call ~#b~0.base, ~#b~0.offset := #Ultimate.allocOnStack(4);call ~#p1~0.base, ~#p1~0.offset := #Ultimate.allocOnStack(4);call ~#p2~0.base, ~#p2~0.offset := #Ultimate.allocOnStack(4);call write~$Pointer$(~#a~0.base, ~#a~0.offset, ~#p1~0.base, ~#p1~0.offset, 4);call write~$Pointer$(~#b~0.base, ~#b~0.offset, ~#p2~0.base, ~#p2~0.offset, 4);call write~int(1, ~#b~0.base, ~#b~0.offset, 4);call write~int(5, ~#a~0.base, ~#a~0.offset, 4);call #t~mem2 := read~int(~#a~0.base, ~#a~0.offset, 4);#t~post3 := #t~mem2;call write~int(#t~post3 - 1, ~#a~0.base, ~#a~0.offset, 4);havoc #t~mem2;havoc #t~post3;call #t~mem4 := read~int(~#a~0.base, ~#a~0.offset, 4); {32#(= 4 |main_#t~mem4|)} is VALID [2020-07-10 15:06:22,050 INFO L263 TraceCheckUtils]: 6: Hoare triple {32#(= 4 |main_#t~mem4|)} call #t~ret5 := f(#t~mem4, ~#p1~0.base, ~#p1~0.offset, ~#p2~0.base, ~#p2~0.offset); {38#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-10 15:06:22,051 INFO L280 TraceCheckUtils]: 7: Hoare triple {38#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~a := #in~a;~p1.base, ~p1.offset := #in~p1.base, #in~p1.offset;~p2.base, ~p2.offset := #in~p2.base, #in~p2.offset; {39#(= |f_#in~a| f_~a)} is VALID [2020-07-10 15:06:22,053 INFO L280 TraceCheckUtils]: 8: Hoare triple {39#(= |f_#in~a| f_~a)} assume !(4 == ~a);#res := 0; {40#(not (= 4 |f_#in~a|))} is VALID [2020-07-10 15:06:22,054 INFO L280 TraceCheckUtils]: 9: Hoare triple {40#(not (= 4 |f_#in~a|))} assume true; {40#(not (= 4 |f_#in~a|))} is VALID [2020-07-10 15:06:22,056 INFO L275 TraceCheckUtils]: 10: Hoare quadruple {40#(not (= 4 |f_#in~a|))} {32#(= 4 |main_#t~mem4|)} #33#return; {28#false} is VALID [2020-07-10 15:06:22,058 INFO L280 TraceCheckUtils]: 11: Hoare triple {28#false} assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647;call write~int(#t~ret5, ~#a~0.base, ~#a~0.offset, 4);havoc #t~ret5;havoc #t~mem4;call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~#p1~0.base, ~#p1~0.offset, 4);call #t~mem7 := read~int(#t~mem6.base, #t~mem6.offset, 4); {28#false} is VALID [2020-07-10 15:06:22,058 INFO L280 TraceCheckUtils]: 12: Hoare triple {28#false} assume 0 == #t~mem7;havoc #t~mem7;havoc #t~mem6.base, #t~mem6.offset; {28#false} is VALID [2020-07-10 15:06:22,059 INFO L280 TraceCheckUtils]: 13: Hoare triple {28#false} assume !false; {28#false} is VALID [2020-07-10 15:06:22,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:06:22,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602861815] [2020-07-10 15:06:22,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:06:22,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-10 15:06:22,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565603341] [2020-07-10 15:06:22,073 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-07-10 15:06:22,079 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:06:22,085 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-10 15:06:22,119 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:06:22,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-10 15:06:22,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:06:22,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-10 15:06:22,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-10 15:06:22,132 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 7 states. [2020-07-10 15:06:22,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:06:22,745 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-07-10 15:06:22,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-10 15:06:22,746 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-07-10 15:06:22,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:06:22,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 15:06:22,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 35 transitions. [2020-07-10 15:06:22,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 15:06:22,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 35 transitions. [2020-07-10 15:06:22,766 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 35 transitions. [2020-07-10 15:06:22,829 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:06:22,841 INFO L225 Difference]: With dead ends: 34 [2020-07-10 15:06:22,842 INFO L226 Difference]: Without dead ends: 20 [2020-07-10 15:06:22,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-07-10 15:06:22,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-07-10 15:06:22,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-07-10 15:06:22,897 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:06:22,898 INFO L82 GeneralOperation]: Start isEquivalent. First operand 20 states. Second operand 20 states. [2020-07-10 15:06:22,898 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 20 states. [2020-07-10 15:06:22,898 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 20 states. [2020-07-10 15:06:22,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:06:22,902 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2020-07-10 15:06:22,903 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-07-10 15:06:22,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:06:22,903 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:06:22,903 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 20 states. [2020-07-10 15:06:22,904 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 20 states. [2020-07-10 15:06:22,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:06:22,907 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2020-07-10 15:06:22,908 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-07-10 15:06:22,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:06:22,908 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:06:22,909 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:06:22,909 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:06:22,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-10 15:06:22,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2020-07-10 15:06:22,913 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 14 [2020-07-10 15:06:22,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:06:22,913 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2020-07-10 15:06:22,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-10 15:06:22,914 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-07-10 15:06:22,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-10 15:06:22,915 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:06:22,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:06:22,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:06:22,915 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:06:22,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:06:22,916 INFO L82 PathProgramCache]: Analyzing trace with hash -2114164890, now seen corresponding path program 1 times [2020-07-10 15:06:22,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:06:22,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396675814] [2020-07-10 15:06:22,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:06:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:06:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:06:23,149 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 15:06:23,157 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 15:06:23,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 15:06:23,195 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 15:06:23,195 WARN L170 areAnnotationChecker]: fENTRY has no Hoare annotation [2020-07-10 15:06:23,195 WARN L170 areAnnotationChecker]: gENTRY has no Hoare annotation [2020-07-10 15:06:23,195 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:06:23,196 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:06:23,196 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 15:06:23,196 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:06:23,196 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-10 15:06:23,196 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-10 15:06:23,196 WARN L170 areAnnotationChecker]: gFINAL has no Hoare annotation [2020-07-10 15:06:23,196 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:06:23,197 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:06:23,197 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-10 15:06:23,197 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-10 15:06:23,197 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:06:23,197 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-10 15:06:23,197 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-10 15:06:23,197 WARN L170 areAnnotationChecker]: fFINAL has no Hoare annotation [2020-07-10 15:06:23,197 WARN L170 areAnnotationChecker]: gEXIT has no Hoare annotation [2020-07-10 15:06:23,198 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:06:23,198 WARN L170 areAnnotationChecker]: L32-1 has no Hoare annotation [2020-07-10 15:06:23,198 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-10 15:06:23,198 WARN L170 areAnnotationChecker]: fEXIT has no Hoare annotation [2020-07-10 15:06:23,198 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-10 15:06:23,198 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-10 15:06:23,198 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-10 15:06:23,199 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-10 15:06:23,199 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:06:23,199 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:06:23,199 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 15:06:23,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:06:23 BoogieIcfgContainer [2020-07-10 15:06:23,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:06:23,205 INFO L168 Benchmark]: Toolchain (without parser) took 2582.62 ms. Allocated memory was 135.3 MB in the beginning and 226.5 MB in the end (delta: 91.2 MB). Free memory was 100.6 MB in the beginning and 126.8 MB in the end (delta: -26.2 MB). Peak memory consumption was 65.0 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:23,206 INFO L168 Benchmark]: CDTParser took 1.10 ms. Allocated memory is still 135.3 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-10 15:06:23,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.09 ms. Allocated memory is still 135.3 MB. Free memory was 100.3 MB in the beginning and 89.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:23,209 INFO L168 Benchmark]: Boogie Preprocessor took 149.97 ms. Allocated memory was 135.3 MB in the beginning and 198.7 MB in the end (delta: 63.4 MB). Free memory was 89.9 MB in the beginning and 176.7 MB in the end (delta: -86.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:23,210 INFO L168 Benchmark]: RCFGBuilder took 561.97 ms. Allocated memory is still 198.7 MB. Free memory was 176.7 MB in the beginning and 150.4 MB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:23,211 INFO L168 Benchmark]: TraceAbstraction took 1616.14 ms. Allocated memory was 198.7 MB in the beginning and 226.5 MB in the end (delta: 27.8 MB). Free memory was 149.7 MB in the beginning and 126.8 MB in the end (delta: 22.9 MB). Peak memory consumption was 50.7 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:23,215 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 1.10 ms. Allocated memory is still 135.3 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 249.09 ms. Allocated memory is still 135.3 MB. Free memory was 100.3 MB in the beginning and 89.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 149.97 ms. Allocated memory was 135.3 MB in the beginning and 198.7 MB in the end (delta: 63.4 MB). Free memory was 89.9 MB in the beginning and 176.7 MB in the end (delta: -86.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 561.97 ms. Allocated memory is still 198.7 MB. Free memory was 176.7 MB in the beginning and 150.4 MB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1616.14 ms. Allocated memory was 198.7 MB in the beginning and 226.5 MB in the end (delta: 27.8 MB). Free memory was 149.7 MB in the beginning and 126.8 MB in the end (delta: 22.9 MB). Peak memory consumption was 50.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 40]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L21] int a, b; [L22] int *p1, *p2; [L24] p1 = &a [L25] p2 = &b [L27] b = 1 [L28] a = 5 [L30] EXPR \read(a) [L30] a-- [L32] EXPR \read(a) VAL [\read(a)=4, a={2:0}, b={6:0}, p1={5:0}, p2={3:0}] [L32] CALL, EXPR f(a, &p1, &p2) VAL [\old(a)=4, p1={5:0}, p2={3:0}] [L12] COND TRUE a == 4 VAL [\old(a)=4, a=4, p1={5:0}, p1={5:0}, p2={3:0}, p2={3:0}] [L13] CALL g(p1, p2) VAL [p1={5:0}, p2={3:0}] [L5] EXPR \read(**p2) [L5] int *pq = *p2; [L7] EXPR \read(**p2) [L7] *p1 = *p2 [L8] *pq = 0 VAL [p1={5:0}, p1={5:0}, p2={3:0}, p2={3:0}, pq={6:0}] [L13] RET g(p1, p2) VAL [\old(a)=4, a=4, p1={5:0}, p1={5:0}, p2={3:0}, p2={3:0}] [L14] return 1; VAL [\old(a)=4, \result=1, a=4, p1={5:0}, p1={5:0}, p2={3:0}, p2={3:0}] [L32] RET, EXPR f(a, &p1, &p2) VAL [\read(a)=4, a={2:0}, b={6:0}, f(a, &p1, &p2)=1, p1={5:0}, p2={3:0}] [L32] a = f(a, &p1, &p2) [L34] EXPR \read(*p1) VAL [\read(*p1)={6:0}, \read(*p1)=0, a={2:0}, b={6:0}, p1={5:0}, p2={3:0}] [L34] COND TRUE *p1 == 0 [L40] __VERIFIER_error() VAL [a={2:0}, b={6:0}, p1={5:0}, p2={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 17 SDslu, 42 SDs, 0 SdLazy, 55 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 533 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...