/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test21-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 22:06:22,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 22:06:22,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 22:06:22,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 22:06:22,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 22:06:22,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 22:06:22,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 22:06:22,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 22:06:22,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 22:06:22,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 22:06:22,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 22:06:22,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 22:06:22,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 22:06:22,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 22:06:22,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 22:06:22,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 22:06:22,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 22:06:22,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 22:06:22,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 22:06:22,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 22:06:22,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 22:06:22,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 22:06:22,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 22:06:22,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 22:06:22,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 22:06:22,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 22:06:22,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 22:06:22,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 22:06:22,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 22:06:22,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 22:06:22,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 22:06:22,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 22:06:22,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 22:06:22,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 22:06:22,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 22:06:22,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 22:06:22,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 22:06:22,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 22:06:22,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 22:06:22,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 22:06:22,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 22:06:22,997 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 22:06:23,015 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 22:06:23,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 22:06:23,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 22:06:23,018 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 22:06:23,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 22:06:23,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 22:06:23,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 22:06:23,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 22:06:23,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 22:06:23,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 22:06:23,020 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 22:06:23,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 22:06:23,021 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 22:06:23,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 22:06:23,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 22:06:23,022 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 22:06:23,022 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 22:06:23,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 22:06:23,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 22:06:23,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 22:06:23,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 22:06:23,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 22:06:23,023 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 22:06:23,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 22:06:23,475 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 22:06:23,480 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 22:06:23,481 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 22:06:23,482 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 22:06:23,483 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test21-1.c [2020-09-04 22:06:23,567 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6aa39f29d/f13c53cd738e43959202d4f78773530d/FLAGe9404cfeb [2020-09-04 22:06:24,104 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 22:06:24,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test21-1.c [2020-09-04 22:06:24,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6aa39f29d/f13c53cd738e43959202d4f78773530d/FLAGe9404cfeb [2020-09-04 22:06:24,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6aa39f29d/f13c53cd738e43959202d4f78773530d [2020-09-04 22:06:24,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 22:06:24,479 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 22:06:24,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 22:06:24,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 22:06:24,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 22:06:24,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:06:24" (1/1) ... [2020-09-04 22:06:24,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de25899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:24, skipping insertion in model container [2020-09-04 22:06:24,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:06:24" (1/1) ... [2020-09-04 22:06:24,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 22:06:24,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 22:06:24,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:06:24,775 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 22:06:24,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:06:24,830 INFO L208 MainTranslator]: Completed translation [2020-09-04 22:06:24,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:24 WrapperNode [2020-09-04 22:06:24,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 22:06:24,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 22:06:24,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 22:06:24,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 22:06:24,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:24" (1/1) ... [2020-09-04 22:06:24,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:24" (1/1) ... [2020-09-04 22:06:24,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:24" (1/1) ... [2020-09-04 22:06:24,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:24" (1/1) ... [2020-09-04 22:06:24,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:24" (1/1) ... [2020-09-04 22:06:24,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:24" (1/1) ... [2020-09-04 22:06:24,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:24" (1/1) ... [2020-09-04 22:06:24,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 22:06:24,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 22:06:24,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 22:06:24,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 22:06:24,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:24" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 22:06:25,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 22:06:25,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 22:06:25,051 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-09-04 22:06:25,051 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-09-04 22:06:25,051 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-09-04 22:06:25,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 22:06:25,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 22:06:25,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 22:06:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-04 22:06:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-04 22:06:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 22:06:25,053 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-09-04 22:06:25,053 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-04 22:06:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 22:06:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 22:06:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 22:06:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 22:06:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 22:06:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 22:06:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 22:06:25,397 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 22:06:25,397 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 22:06:25,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:06:25 BoogieIcfgContainer [2020-09-04 22:06:25,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 22:06:25,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 22:06:25,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 22:06:25,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 22:06:25,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 10:06:24" (1/3) ... [2020-09-04 22:06:25,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684a25d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:06:25, skipping insertion in model container [2020-09-04 22:06:25,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:24" (2/3) ... [2020-09-04 22:06:25,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684a25d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:06:25, skipping insertion in model container [2020-09-04 22:06:25,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:06:25" (3/3) ... [2020-09-04 22:06:25,412 INFO L109 eAbstractionObserver]: Analyzing ICFG test21-1.c [2020-09-04 22:06:25,424 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 22:06:25,434 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 22:06:25,458 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 22:06:25,484 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 22:06:25,484 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 22:06:25,484 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 22:06:25,485 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 22:06:25,485 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 22:06:25,485 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 22:06:25,485 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 22:06:25,485 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 22:06:25,504 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-09-04 22:06:25,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-04 22:06:25,519 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:06:25,520 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 22:06:25,521 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:06:25,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:06:25,527 INFO L82 PathProgramCache]: Analyzing trace with hash -487286935, now seen corresponding path program 1 times [2020-09-04 22:06:25,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:06:25,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291367064] [2020-09-04 22:06:25,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:06:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:25,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:06:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:25,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-04 22:06:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:26,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-04 22:06:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:26,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-04 22:06:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:26,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-04 22:06:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:26,309 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-04 22:06:26,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291367064] [2020-09-04 22:06:26,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:06:26,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-09-04 22:06:26,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057843025] [2020-09-04 22:06:26,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-04 22:06:26,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:06:26,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-04 22:06:26,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2020-09-04 22:06:26,346 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 16 states. [2020-09-04 22:06:28,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:06:28,194 INFO L93 Difference]: Finished difference Result 96 states and 105 transitions. [2020-09-04 22:06:28,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-04 22:06:28,196 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 63 [2020-09-04 22:06:28,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:06:28,206 INFO L225 Difference]: With dead ends: 96 [2020-09-04 22:06:28,207 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 22:06:28,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=173, Invalid=1017, Unknown=0, NotChecked=0, Total=1190 [2020-09-04 22:06:28,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 22:06:28,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 22:06:28,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 22:06:28,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 22:06:28,244 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2020-09-04 22:06:28,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:06:28,244 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 22:06:28,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-04 22:06:28,244 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 22:06:28,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 22:06:28,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 22:06:28,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 22:06:29,540 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2020-09-04 22:06:29,720 INFO L264 CegarLoopResult]: At program point initENTRY(lines 11 18) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-09-04 22:06:29,720 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-09-04 22:06:29,720 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-09-04 22:06:29,720 INFO L271 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: true [2020-09-04 22:06:29,720 INFO L271 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: true [2020-09-04 22:06:29,720 INFO L271 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: true [2020-09-04 22:06:29,721 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-09-04 22:06:29,721 INFO L271 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: true [2020-09-04 22:06:29,721 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-09-04 22:06:29,721 INFO L271 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: true [2020-09-04 22:06:29,721 INFO L271 CegarLoopResult]: At program point initEXIT(lines 11 18) the Hoare annotation is: true [2020-09-04 22:06:29,721 INFO L271 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: true [2020-09-04 22:06:29,721 INFO L271 CegarLoopResult]: At program point L14-2(line 14) the Hoare annotation is: true [2020-09-04 22:06:29,722 INFO L271 CegarLoopResult]: At program point initFINAL(lines 11 18) the Hoare annotation is: true [2020-09-04 22:06:29,722 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 22:06:29,722 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-09-04 22:06:29,722 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 9) the Hoare annotation is: true [2020-09-04 22:06:29,722 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |old(#length)| |#length|) (= |old(~#d1~0.base)| |~#d1~0.base|) (= |old(~#d1~0.offset)| |~#d1~0.offset|) (= |old(~#d2~0.offset)| |~#d2~0.offset|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |old(~#d2~0.base)| |~#d2~0.base|)) [2020-09-04 22:06:29,723 INFO L271 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-09-04 22:06:29,723 INFO L271 CegarLoopResult]: At program point L9-1(line 9) the Hoare annotation is: true [2020-09-04 22:06:29,723 INFO L271 CegarLoopResult]: At program point L9-2(line 9) the Hoare annotation is: true [2020-09-04 22:06:29,723 INFO L271 CegarLoopResult]: At program point L9-3(line 9) the Hoare annotation is: true [2020-09-04 22:06:29,723 INFO L271 CegarLoopResult]: At program point L9-4(line 9) the Hoare annotation is: true [2020-09-04 22:06:29,723 INFO L271 CegarLoopResult]: At program point L9-5(line 9) the Hoare annotation is: true [2020-09-04 22:06:29,723 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 22:06:29,724 INFO L271 CegarLoopResult]: At program point L22-5(line 22) the Hoare annotation is: true [2020-09-04 22:06:29,724 INFO L271 CegarLoopResult]: At program point get_dummyFINAL(lines 20 23) the Hoare annotation is: true [2020-09-04 22:06:29,724 INFO L271 CegarLoopResult]: At program point get_dummyENTRY(lines 20 23) the Hoare annotation is: true [2020-09-04 22:06:29,724 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-09-04 22:06:29,724 INFO L271 CegarLoopResult]: At program point L22-2(line 22) the Hoare annotation is: true [2020-09-04 22:06:29,724 INFO L271 CegarLoopResult]: At program point get_dummyEXIT(lines 20 23) the Hoare annotation is: true [2020-09-04 22:06:29,724 INFO L271 CegarLoopResult]: At program point L22-3(line 22) the Hoare annotation is: true [2020-09-04 22:06:29,725 INFO L271 CegarLoopResult]: At program point L22-4(line 22) the Hoare annotation is: true [2020-09-04 22:06:29,725 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 22:06:29,725 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 22:06:29,725 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 22:06:29,725 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 22:06:29,725 INFO L271 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: true [2020-09-04 22:06:29,726 INFO L264 CegarLoopResult]: At program point L35-2(lines 35 37) the Hoare annotation is: (and (<= 1 |main_#t~ret10|) (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base)) [2020-09-04 22:06:29,726 INFO L271 CegarLoopResult]: At program point L33-1(line 33) the Hoare annotation is: true [2020-09-04 22:06:29,726 INFO L264 CegarLoopResult]: At program point L35-3(line 35) the Hoare annotation is: false [2020-09-04 22:06:29,726 INFO L271 CegarLoopResult]: At program point L33-2(line 33) the Hoare annotation is: true [2020-09-04 22:06:29,726 INFO L264 CegarLoopResult]: At program point L35-4(line 35) the Hoare annotation is: (and (<= 1 |main_#t~ret10|) (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base)) [2020-09-04 22:06:29,727 INFO L271 CegarLoopResult]: At program point L33-3(line 33) the Hoare annotation is: true [2020-09-04 22:06:29,727 INFO L271 CegarLoopResult]: At program point L33-4(line 33) the Hoare annotation is: true [2020-09-04 22:06:29,727 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 30 44) the Hoare annotation is: true [2020-09-04 22:06:29,727 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 30 44) the Hoare annotation is: true [2020-09-04 22:06:29,727 INFO L264 CegarLoopResult]: At program point L36(lines 31 44) the Hoare annotation is: false [2020-09-04 22:06:29,727 INFO L271 CegarLoopResult]: At program point L34(lines 34 38) the Hoare annotation is: true [2020-09-04 22:06:29,727 INFO L271 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: true [2020-09-04 22:06:29,728 INFO L271 CegarLoopResult]: At program point L34-2(lines 34 38) the Hoare annotation is: true [2020-09-04 22:06:29,728 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) the Hoare annotation is: false [2020-09-04 22:06:29,728 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 30 44) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-09-04 22:06:29,728 INFO L264 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: false [2020-09-04 22:06:29,728 INFO L264 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (and (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base)) [2020-09-04 22:06:29,729 INFO L264 CegarLoopResult]: At program point L35-1(line 35) the Hoare annotation is: (and (<= 1 |main_#t~ret10|) (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base)) [2020-09-04 22:06:29,729 INFO L271 CegarLoopResult]: At program point checkENTRY(lines 25 28) the Hoare annotation is: true [2020-09-04 22:06:29,729 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (let ((.cse0 (= check_~s1.base check_~s2.base))) (and (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or (not (= |check_#in~s1.base| |check_#in~s2.base|)) .cse0) (or (= check_~s1.offset check_~s2.offset) (not (= |check_#in~s1.offset| |check_#in~s2.offset|)) (not .cse0)))) [2020-09-04 22:06:29,729 INFO L264 CegarLoopResult]: At program point L27-1(line 27) the Hoare annotation is: (let ((.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse1 (not (= |check_#in~s1.offset| |check_#in~s2.offset|))) (.cse2 (= check_~s1.base check_~s2.base))) (and (or .cse0 .cse1 (= |check_#t~mem6| (select (select |#memory_int| check_~s2.base) check_~s2.offset))) (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse2) (or (= check_~s1.offset check_~s2.offset) .cse1 (not .cse2)))) [2020-09-04 22:06:29,730 INFO L264 CegarLoopResult]: At program point L25(lines 25 28) the Hoare annotation is: (and (= check_~s1.offset |check_#in~s1.offset|) (= |check_#in~s1.base| check_~s1.base)) [2020-09-04 22:06:29,730 INFO L264 CegarLoopResult]: At program point L27-2(line 27) the Hoare annotation is: (let ((.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse1 (not (= |check_#in~s1.offset| |check_#in~s2.offset|))) (.cse2 (= check_~s1.base check_~s2.base))) (and (or .cse0 (= |check_#t~mem7| |check_#t~mem6|) .cse1) (or .cse0 .cse1 (= |check_#t~mem6| (select (select |#memory_int| check_~s2.base) check_~s2.offset))) (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse2) (or (= check_~s1.offset check_~s2.offset) .cse1 (not .cse2)))) [2020-09-04 22:06:29,730 INFO L264 CegarLoopResult]: At program point L27-3(line 27) the Hoare annotation is: (let ((.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse1 (not (= |check_#in~s1.offset| |check_#in~s2.offset|))) (.cse2 (= check_~s1.base check_~s2.base))) (and (or .cse0 (= |check_#t~mem7| |check_#t~mem6|) .cse1) (or .cse0 .cse1 (= |check_#t~mem6| (select (select |#memory_int| check_~s2.base) check_~s2.offset))) (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse2) (or .cse0 .cse1 (<= 1 |check_#res|)) (or (= check_~s1.offset check_~s2.offset) .cse1 (not .cse2)))) [2020-09-04 22:06:29,731 INFO L264 CegarLoopResult]: At program point L27-4(line 27) the Hoare annotation is: (let ((.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse2 (not (= |check_#in~s1.offset| |check_#in~s2.offset|))) (.cse1 (= check_~s1.base check_~s2.base))) (and (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse1) (or .cse0 .cse2 (<= 1 |check_#res|)) (or (= check_~s1.offset check_~s2.offset) .cse2 (not .cse1)))) [2020-09-04 22:06:29,731 INFO L264 CegarLoopResult]: At program point checkFINAL(lines 25 28) the Hoare annotation is: (let ((.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse2 (not (= |check_#in~s1.offset| |check_#in~s2.offset|))) (.cse1 (= check_~s1.base check_~s2.base))) (and (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse1) (or .cse0 .cse2 (<= 1 |check_#res|)) (or (= check_~s1.offset check_~s2.offset) .cse2 (not .cse1)))) [2020-09-04 22:06:29,731 INFO L264 CegarLoopResult]: At program point checkEXIT(lines 25 28) the Hoare annotation is: (let ((.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse2 (not (= |check_#in~s1.offset| |check_#in~s2.offset|))) (.cse1 (= check_~s1.base check_~s2.base))) (and (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse1) (or .cse0 .cse2 (<= 1 |check_#res|)) (or (= check_~s1.offset check_~s2.offset) .cse2 (not .cse1)))) [2020-09-04 22:06:29,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 10:06:29 BoogieIcfgContainer [2020-09-04 22:06:29,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 22:06:29,757 INFO L168 Benchmark]: Toolchain (without parser) took 5278.32 ms. Allocated memory was 140.0 MB in the beginning and 273.2 MB in the end (delta: 133.2 MB). Free memory was 104.3 MB in the beginning and 206.2 MB in the end (delta: -101.9 MB). Peak memory consumption was 109.4 MB. Max. memory is 7.1 GB. [2020-09-04 22:06:29,758 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 22:06:29,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.11 ms. Allocated memory is still 140.0 MB. Free memory was 104.1 MB in the beginning and 93.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-04 22:06:29,760 INFO L168 Benchmark]: Boogie Preprocessor took 130.10 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 93.9 MB in the beginning and 180.9 MB in the end (delta: -87.0 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-09-04 22:06:29,761 INFO L168 Benchmark]: RCFGBuilder took 440.73 ms. Allocated memory is still 203.4 MB. Free memory was 180.9 MB in the beginning and 161.6 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2020-09-04 22:06:29,762 INFO L168 Benchmark]: TraceAbstraction took 4350.72 ms. Allocated memory was 203.4 MB in the beginning and 273.2 MB in the end (delta: 69.7 MB). Free memory was 161.0 MB in the beginning and 206.2 MB in the end (delta: -45.2 MB). Peak memory consumption was 102.6 MB. Max. memory is 7.1 GB. [2020-09-04 22:06:29,767 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 351.11 ms. Allocated memory is still 140.0 MB. Free memory was 104.1 MB in the beginning and 93.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.10 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 93.9 MB in the beginning and 180.9 MB in the end (delta: -87.0 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 440.73 ms. Allocated memory is still 203.4 MB. Free memory was 180.9 MB in the beginning and 161.6 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4350.72 ms. Allocated memory was 203.4 MB in the beginning and 273.2 MB in the end (delta: 69.7 MB). Free memory was 161.0 MB in the beginning and 206.2 MB in the end (delta: -45.2 MB). Peak memory consumption was 102.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 11]: Procedure Contract for init Derived contract for procedure init: 1 - ProcedureContractResult [Line: 20]: Procedure Contract for get_dummy Derived contract for procedure get_dummy: 1 - ProcedureContractResult [Line: 30]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 25]: Procedure Contract for check Derived contract for procedure check: (((s1 == s1 && s1 == s1) && (!(s1 == s2) || s1 == s2)) && ((!(s1 == s2) || !(s1 == s2)) || 1 <= \result)) && ((s1 == s2 || !(s1 == s2)) || !(s1 == s2)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 65 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 1, TraceHistogramMax: 2, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 132 SDslu, 85 SDs, 0 SdLazy, 737 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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: 0.0s HoareAnnotationTime, 65 LocationsWithAnnotation, 90 PreInvPairs, 131 NumberOfFragments, 436 HoareAnnotationTreeSize, 90 FomulaSimplifications, 1319 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 65 FomulaSimplificationsInter, 1181 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 17980 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 7/7 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 correct! Received shutdown request...