/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/test28-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:30:19,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:30:19,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:30:19,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:30:19,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:30:19,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:30:19,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:30:19,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:30:19,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:30:19,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:30:19,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:30:19,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:30:19,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:30:19,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:30:19,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:30:19,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:30:19,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:30:19,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:30:19,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:30:19,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:30:19,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:30:19,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:30:19,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:30:19,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:30:19,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:30:19,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:30:19,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:30:19,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:30:19,887 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 [2020-07-17 22:30:19,901 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:30:19,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:30:19,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:30:19,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:30:19,903 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:30:19,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:30:19,904 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:30:19,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:30:19,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:30:19,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:30:19,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:30:19,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:30:19,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:30:19,905 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:30:19,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:30:19,906 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:30:19,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:30:19,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:30:19,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:30:19,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:30:19,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:30:19,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:30:19,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:30:19,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:30:19,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:30:19,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:30:19,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:30:19,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:30:19,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:30:19,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:30:20,196 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:30:20,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:30:20,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:30:20,220 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:30:20,220 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:30:20,221 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test28-2.c [2020-07-17 22:30:20,299 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1f7fa7ae/dea74b81dae349fab3f4c64ae0ea1680/FLAGe2adf27c7 [2020-07-17 22:30:20,774 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:30:20,775 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test28-2.c [2020-07-17 22:30:20,781 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1f7fa7ae/dea74b81dae349fab3f4c64ae0ea1680/FLAGe2adf27c7 [2020-07-17 22:30:21,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1f7fa7ae/dea74b81dae349fab3f4c64ae0ea1680 [2020-07-17 22:30:21,206 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:30:21,211 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:30:21,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:30:21,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:30:21,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:30:21,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:30:21" (1/1) ... [2020-07-17 22:30:21,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ab632c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:21, skipping insertion in model container [2020-07-17 22:30:21,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:30:21" (1/1) ... [2020-07-17 22:30:21,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:30:21,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:30:21,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:30:21,477 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:30:21,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:30:21,513 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:30:21,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:21 WrapperNode [2020-07-17 22:30:21,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:30:21,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:30:21,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:30:21,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:30:21,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:21" (1/1) ... [2020-07-17 22:30:21,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:21" (1/1) ... [2020-07-17 22:30:21,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:21" (1/1) ... [2020-07-17 22:30:21,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:21" (1/1) ... [2020-07-17 22:30:21,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:21" (1/1) ... [2020-07-17 22:30:21,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:21" (1/1) ... [2020-07-17 22:30:21,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:21" (1/1) ... [2020-07-17 22:30:21,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:30:21,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:30:21,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:30:21,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:30:21,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:21" (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 [2020-07-17 22:30:21,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:30:21,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:30:21,717 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:30:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:30:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 22:30:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:30:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:30:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:30:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:30:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:30:21,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:30:21,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:30:21,999 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:30:22,000 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 22:30:22,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:30:22 BoogieIcfgContainer [2020-07-17 22:30:22,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:30:22,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:30:22,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:30:22,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:30:22,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:30:21" (1/3) ... [2020-07-17 22:30:22,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae7b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:30:22, skipping insertion in model container [2020-07-17 22:30:22,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:21" (2/3) ... [2020-07-17 22:30:22,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae7b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:30:22, skipping insertion in model container [2020-07-17 22:30:22,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:30:22" (3/3) ... [2020-07-17 22:30:22,014 INFO L109 eAbstractionObserver]: Analyzing ICFG test28-2.c [2020-07-17 22:30:22,028 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:30:22,040 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:30:22,075 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:30:22,102 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:30:22,102 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:30:22,103 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:30:22,103 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:30:22,103 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:30:22,103 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:30:22,103 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:30:22,103 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:30:22,124 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-07-17 22:30:22,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-17 22:30:22,130 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:30:22,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:30:22,131 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:30:22,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:30:22,137 INFO L82 PathProgramCache]: Analyzing trace with hash 668850033, now seen corresponding path program 1 times [2020-07-17 22:30:22,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:30:22,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333360191] [2020-07-17 22:30:22,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:30:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:22,429 INFO L280 TraceCheckUtils]: 0: Hoare triple {28#(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; {21#true} is VALID [2020-07-17 22:30:22,432 INFO L280 TraceCheckUtils]: 1: Hoare triple {21#true} assume true; {21#true} is VALID [2020-07-17 22:30:22,432 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {21#true} {21#true} #35#return; {21#true} is VALID [2020-07-17 22:30:22,436 INFO L263 TraceCheckUtils]: 0: Hoare triple {21#true} call ULTIMATE.init(); {28#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:30:22,436 INFO L280 TraceCheckUtils]: 1: Hoare triple {28#(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; {21#true} is VALID [2020-07-17 22:30:22,436 INFO L280 TraceCheckUtils]: 2: Hoare triple {21#true} assume true; {21#true} is VALID [2020-07-17 22:30:22,437 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {21#true} {21#true} #35#return; {21#true} is VALID [2020-07-17 22:30:22,437 INFO L263 TraceCheckUtils]: 4: Hoare triple {21#true} call #t~ret4 := main(); {21#true} is VALID [2020-07-17 22:30:22,437 INFO L280 TraceCheckUtils]: 5: Hoare triple {21#true} call ~#d1~0.base, ~#d1~0.offset := #Ultimate.allocOnStack(8);call ~#d2~0.base, ~#d2~0.offset := #Ultimate.allocOnStack(8);assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~n~0 := #t~nondet0;havoc #t~nondet0; {21#true} is VALID [2020-07-17 22:30:22,438 INFO L280 TraceCheckUtils]: 6: Hoare triple {21#true} assume 0 != ~n~0;#t~ite1.base, #t~ite1.offset := ~#d1~0.base, ~#d1~0.offset; {26#(and (= |main_~#d1~0.base| |main_#t~ite1.base|) (= |main_#t~ite1.offset| |main_~#d1~0.offset|))} is VALID [2020-07-17 22:30:22,440 INFO L280 TraceCheckUtils]: 7: Hoare triple {26#(and (= |main_~#d1~0.base| |main_#t~ite1.base|) (= |main_#t~ite1.offset| |main_~#d1~0.offset|))} ~pd~0.base, ~pd~0.offset := #t~ite1.base, #t~ite1.offset;havoc #t~ite1.base, #t~ite1.offset; {27#(and (= |main_~#d1~0.offset| main_~pd~0.offset) (= |main_~#d1~0.base| main_~pd~0.base))} is VALID [2020-07-17 22:30:22,441 INFO L280 TraceCheckUtils]: 8: Hoare triple {27#(and (= |main_~#d1~0.offset| main_~pd~0.offset) (= |main_~#d1~0.base| main_~pd~0.base))} assume !(~pd~0.base == ~#d1~0.base && ~pd~0.offset == ~#d1~0.offset);call write~int(0, ~pd~0.base, 4 + ~pd~0.offset, 4); {22#false} is VALID [2020-07-17 22:30:22,441 INFO L280 TraceCheckUtils]: 9: Hoare triple {22#false} #t~short3 := ~pd~0.base == ~#d2~0.base && ~pd~0.offset == ~#d2~0.offset; {22#false} is VALID [2020-07-17 22:30:22,442 INFO L280 TraceCheckUtils]: 10: Hoare triple {22#false} assume #t~short3;call #t~mem2 := read~int(~#d2~0.base, 4 + ~#d2~0.offset, 4);#t~short3 := 0 != #t~mem2; {22#false} is VALID [2020-07-17 22:30:22,442 INFO L280 TraceCheckUtils]: 11: Hoare triple {22#false} assume #t~short3;havoc #t~short3;havoc #t~mem2; {22#false} is VALID [2020-07-17 22:30:22,442 INFO L280 TraceCheckUtils]: 12: Hoare triple {22#false} assume !false; {22#false} is VALID [2020-07-17 22:30:22,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:30:22,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333360191] [2020-07-17 22:30:22,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:30:22,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 22:30:22,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257119763] [2020-07-17 22:30:22,457 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-17 22:30:22,462 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:30:22,466 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-17 22:30:22,509 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:30:22,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 22:30:22,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:30:22,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 22:30:22,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:30:22,533 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2020-07-17 22:30:22,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:22,771 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2020-07-17 22:30:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 22:30:22,772 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-17 22:30:22,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:30:22,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:30:22,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2020-07-17 22:30:22,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:30:22,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2020-07-17 22:30:22,792 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 41 transitions. [2020-07-17 22:30:22,861 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:30:22,874 INFO L225 Difference]: With dead ends: 34 [2020-07-17 22:30:22,874 INFO L226 Difference]: Without dead ends: 21 [2020-07-17 22:30:22,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:30:22,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-17 22:30:22,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2020-07-17 22:30:22,927 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:30:22,928 INFO L82 GeneralOperation]: Start isEquivalent. First operand 21 states. Second operand 16 states. [2020-07-17 22:30:22,928 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 16 states. [2020-07-17 22:30:22,928 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 16 states. [2020-07-17 22:30:22,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:22,933 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2020-07-17 22:30:22,933 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-07-17 22:30:22,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:30:22,934 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:30:22,934 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 21 states. [2020-07-17 22:30:22,935 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 21 states. [2020-07-17 22:30:22,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:22,939 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2020-07-17 22:30:22,939 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-07-17 22:30:22,940 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:30:22,940 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:30:22,945 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:30:22,946 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:30:22,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-17 22:30:22,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-07-17 22:30:22,950 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 13 [2020-07-17 22:30:22,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:30:22,951 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-07-17 22:30:22,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 22:30:22,951 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-07-17 22:30:22,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-17 22:30:22,952 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:30:22,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:30:22,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:30:22,953 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:30:22,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:30:22,954 INFO L82 PathProgramCache]: Analyzing trace with hash 667002991, now seen corresponding path program 1 times [2020-07-17 22:30:22,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:30:22,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400971160] [2020-07-17 22:30:22,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:30:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:23,091 INFO L280 TraceCheckUtils]: 0: Hoare triple {144#(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; {135#true} is VALID [2020-07-17 22:30:23,092 INFO L280 TraceCheckUtils]: 1: Hoare triple {135#true} assume true; {135#true} is VALID [2020-07-17 22:30:23,092 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {135#true} {135#true} #35#return; {135#true} is VALID [2020-07-17 22:30:23,094 INFO L263 TraceCheckUtils]: 0: Hoare triple {135#true} call ULTIMATE.init(); {144#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:30:23,094 INFO L280 TraceCheckUtils]: 1: Hoare triple {144#(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; {135#true} is VALID [2020-07-17 22:30:23,095 INFO L280 TraceCheckUtils]: 2: Hoare triple {135#true} assume true; {135#true} is VALID [2020-07-17 22:30:23,095 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {135#true} {135#true} #35#return; {135#true} is VALID [2020-07-17 22:30:23,095 INFO L263 TraceCheckUtils]: 4: Hoare triple {135#true} call #t~ret4 := main(); {135#true} is VALID [2020-07-17 22:30:23,097 INFO L280 TraceCheckUtils]: 5: Hoare triple {135#true} call ~#d1~0.base, ~#d1~0.offset := #Ultimate.allocOnStack(8);call ~#d2~0.base, ~#d2~0.offset := #Ultimate.allocOnStack(8);assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~n~0 := #t~nondet0;havoc #t~nondet0; {140#(not (= |main_~#d1~0.base| |main_~#d2~0.base|))} is VALID [2020-07-17 22:30:23,098 INFO L280 TraceCheckUtils]: 6: Hoare triple {140#(not (= |main_~#d1~0.base| |main_~#d2~0.base|))} assume 0 != ~n~0;#t~ite1.base, #t~ite1.offset := ~#d1~0.base, ~#d1~0.offset; {141#(not (= |main_#t~ite1.base| |main_~#d2~0.base|))} is VALID [2020-07-17 22:30:23,099 INFO L280 TraceCheckUtils]: 7: Hoare triple {141#(not (= |main_#t~ite1.base| |main_~#d2~0.base|))} ~pd~0.base, ~pd~0.offset := #t~ite1.base, #t~ite1.offset;havoc #t~ite1.base, #t~ite1.offset; {142#(not (= main_~pd~0.base |main_~#d2~0.base|))} is VALID [2020-07-17 22:30:23,100 INFO L280 TraceCheckUtils]: 8: Hoare triple {142#(not (= main_~pd~0.base |main_~#d2~0.base|))} assume ~pd~0.base == ~#d1~0.base && ~pd~0.offset == ~#d1~0.offset;call write~int(0, ~pd~0.base, ~pd~0.offset, 4); {142#(not (= main_~pd~0.base |main_~#d2~0.base|))} is VALID [2020-07-17 22:30:23,102 INFO L280 TraceCheckUtils]: 9: Hoare triple {142#(not (= main_~pd~0.base |main_~#d2~0.base|))} #t~short3 := ~pd~0.base == ~#d2~0.base && ~pd~0.offset == ~#d2~0.offset; {143#(not |main_#t~short3|)} is VALID [2020-07-17 22:30:23,103 INFO L280 TraceCheckUtils]: 10: Hoare triple {143#(not |main_#t~short3|)} assume #t~short3;call #t~mem2 := read~int(~#d2~0.base, 4 + ~#d2~0.offset, 4);#t~short3 := 0 != #t~mem2; {136#false} is VALID [2020-07-17 22:30:23,103 INFO L280 TraceCheckUtils]: 11: Hoare triple {136#false} assume #t~short3;havoc #t~short3;havoc #t~mem2; {136#false} is VALID [2020-07-17 22:30:23,119 INFO L280 TraceCheckUtils]: 12: Hoare triple {136#false} assume !false; {136#false} is VALID [2020-07-17 22:30:23,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:30:23,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400971160] [2020-07-17 22:30:23,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:30:23,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 22:30:23,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361880838] [2020-07-17 22:30:23,123 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-07-17 22:30:23,123 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:30:23,124 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-17 22:30:23,144 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:30:23,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 22:30:23,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:30:23,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 22:30:23,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-17 22:30:23,146 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 7 states. [2020-07-17 22:30:23,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:23,378 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2020-07-17 22:30:23,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 22:30:23,378 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-07-17 22:30:23,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:30:23,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-17 22:30:23,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 25 transitions. [2020-07-17 22:30:23,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-17 22:30:23,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 25 transitions. [2020-07-17 22:30:23,383 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 25 transitions. [2020-07-17 22:30:23,415 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:30:23,416 INFO L225 Difference]: With dead ends: 23 [2020-07-17 22:30:23,417 INFO L226 Difference]: Without dead ends: 14 [2020-07-17 22:30:23,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-07-17 22:30:23,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-07-17 22:30:23,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-07-17 22:30:23,426 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:30:23,427 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14 states. Second operand 14 states. [2020-07-17 22:30:23,427 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 14 states. [2020-07-17 22:30:23,427 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 14 states. [2020-07-17 22:30:23,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:23,429 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-07-17 22:30:23,429 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2020-07-17 22:30:23,429 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:30:23,429 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:30:23,430 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 14 states. [2020-07-17 22:30:23,430 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 14 states. [2020-07-17 22:30:23,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:23,431 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-07-17 22:30:23,432 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2020-07-17 22:30:23,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:30:23,432 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:30:23,432 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:30:23,433 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:30:23,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-17 22:30:23,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2020-07-17 22:30:23,434 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 13 [2020-07-17 22:30:23,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:30:23,435 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2020-07-17 22:30:23,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 22:30:23,435 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2020-07-17 22:30:23,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-17 22:30:23,436 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:30:23,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:30:23,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:30:23,436 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:30:23,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:30:23,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1851109901, now seen corresponding path program 1 times [2020-07-17 22:30:23,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:30:23,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537784273] [2020-07-17 22:30:23,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:30:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:23,655 INFO L280 TraceCheckUtils]: 0: Hoare triple {241#(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; {231#true} is VALID [2020-07-17 22:30:23,656 INFO L280 TraceCheckUtils]: 1: Hoare triple {231#true} assume true; {231#true} is VALID [2020-07-17 22:30:23,656 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {231#true} {231#true} #35#return; {231#true} is VALID [2020-07-17 22:30:23,658 INFO L263 TraceCheckUtils]: 0: Hoare triple {231#true} call ULTIMATE.init(); {241#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:30:23,659 INFO L280 TraceCheckUtils]: 1: Hoare triple {241#(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; {231#true} is VALID [2020-07-17 22:30:23,659 INFO L280 TraceCheckUtils]: 2: Hoare triple {231#true} assume true; {231#true} is VALID [2020-07-17 22:30:23,659 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {231#true} {231#true} #35#return; {231#true} is VALID [2020-07-17 22:30:23,660 INFO L263 TraceCheckUtils]: 4: Hoare triple {231#true} call #t~ret4 := main(); {231#true} is VALID [2020-07-17 22:30:23,661 INFO L280 TraceCheckUtils]: 5: Hoare triple {231#true} call ~#d1~0.base, ~#d1~0.offset := #Ultimate.allocOnStack(8);call ~#d2~0.base, ~#d2~0.offset := #Ultimate.allocOnStack(8);assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~n~0 := #t~nondet0;havoc #t~nondet0; {236#(= 0 |main_~#d2~0.offset|)} is VALID [2020-07-17 22:30:23,662 INFO L280 TraceCheckUtils]: 6: Hoare triple {236#(= 0 |main_~#d2~0.offset|)} assume !(0 != ~n~0);#t~ite1.base, #t~ite1.offset := ~#d2~0.base, ~#d2~0.offset; {237#(and (= |main_#t~ite1.base| |main_~#d2~0.base|) (= 0 |main_~#d2~0.offset|) (= |main_#t~ite1.offset| 0))} is VALID [2020-07-17 22:30:23,663 INFO L280 TraceCheckUtils]: 7: Hoare triple {237#(and (= |main_#t~ite1.base| |main_~#d2~0.base|) (= 0 |main_~#d2~0.offset|) (= |main_#t~ite1.offset| 0))} ~pd~0.base, ~pd~0.offset := #t~ite1.base, #t~ite1.offset;havoc #t~ite1.base, #t~ite1.offset; {238#(and (= |main_~#d2~0.offset| main_~pd~0.offset) (= main_~pd~0.base |main_~#d2~0.base|))} is VALID [2020-07-17 22:30:23,665 INFO L280 TraceCheckUtils]: 8: Hoare triple {238#(and (= |main_~#d2~0.offset| main_~pd~0.offset) (= main_~pd~0.base |main_~#d2~0.base|))} assume !(~pd~0.base == ~#d1~0.base && ~pd~0.offset == ~#d1~0.offset);call write~int(0, ~pd~0.base, 4 + ~pd~0.offset, 4); {239#(= 0 (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4)))} is VALID [2020-07-17 22:30:23,667 INFO L280 TraceCheckUtils]: 9: Hoare triple {239#(= 0 (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4)))} #t~short3 := ~pd~0.base == ~#d2~0.base && ~pd~0.offset == ~#d2~0.offset; {239#(= 0 (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4)))} is VALID [2020-07-17 22:30:23,668 INFO L280 TraceCheckUtils]: 10: Hoare triple {239#(= 0 (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4)))} assume #t~short3;call #t~mem2 := read~int(~#d2~0.base, 4 + ~#d2~0.offset, 4);#t~short3 := 0 != #t~mem2; {240#(not |main_#t~short3|)} is VALID [2020-07-17 22:30:23,669 INFO L280 TraceCheckUtils]: 11: Hoare triple {240#(not |main_#t~short3|)} assume #t~short3;havoc #t~short3;havoc #t~mem2; {232#false} is VALID [2020-07-17 22:30:23,669 INFO L280 TraceCheckUtils]: 12: Hoare triple {232#false} assume !false; {232#false} is VALID [2020-07-17 22:30:23,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:30:23,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537784273] [2020-07-17 22:30:23,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:30:23,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 22:30:23,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820802812] [2020-07-17 22:30:23,672 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-07-17 22:30:23,673 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:30:23,673 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-17 22:30:23,706 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:30:23,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 22:30:23,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:30:23,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 22:30:23,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 22:30:23,708 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 8 states. [2020-07-17 22:30:23,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:23,904 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-07-17 22:30:23,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 22:30:23,905 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-07-17 22:30:23,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:30:23,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-17 22:30:23,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 13 transitions. [2020-07-17 22:30:23,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-17 22:30:23,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 13 transitions. [2020-07-17 22:30:23,912 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 13 transitions. [2020-07-17 22:30:23,932 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:30:23,932 INFO L225 Difference]: With dead ends: 14 [2020-07-17 22:30:23,932 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 22:30:23,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-07-17 22:30:23,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 22:30:23,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 22:30:23,934 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:30:23,934 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-17 22:30:23,935 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:30:23,935 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:30:23,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:23,935 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:30:23,936 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:30:23,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:30:23,936 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:30:23,936 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:30:23,937 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:30:23,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:23,937 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:30:23,940 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:30:23,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:30:23,941 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:30:23,941 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:30:23,941 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:30:23,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 22:30:23,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 22:30:23,942 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-07-17 22:30:23,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:30:23,945 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 22:30:23,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 22:30:23,945 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:30:23,945 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:30:23,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 22:30:23,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 22:30:24,045 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-17 22:30:24,046 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-17 22:30:24,046 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:30:24,046 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:30:24,046 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 22:30:24,046 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 22:30:24,046 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 22:30:24,047 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 10 28) no Hoare annotation was computed. [2020-07-17 22:30:24,047 INFO L264 CegarLoopResult]: At program point L21(lines 11 28) the Hoare annotation is: false [2020-07-17 22:30:24,047 INFO L268 CegarLoopResult]: For program point L15(lines 15 19) no Hoare annotation was computed. [2020-07-17 22:30:24,048 INFO L268 CegarLoopResult]: For program point L15-2(lines 15 19) no Hoare annotation was computed. [2020-07-17 22:30:24,048 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 10 28) no Hoare annotation was computed. [2020-07-17 22:30:24,048 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2020-07-17 22:30:24,049 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 10 28) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-17 22:30:24,049 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-07-17 22:30:24,049 INFO L268 CegarLoopResult]: For program point L20-2(lines 20 22) no Hoare annotation was computed. [2020-07-17 22:30:24,049 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-07-17 22:30:24,049 INFO L268 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2020-07-17 22:30:24,055 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:30:24,057 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-17 22:30:24,057 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:30:24,057 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:30:24,058 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-17 22:30:24,059 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-17 22:30:24,059 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:30:24,059 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:30:24,059 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-17 22:30:24,059 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-17 22:30:24,059 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-17 22:30:24,060 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2020-07-17 22:30:24,060 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-17 22:30:24,060 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-17 22:30:24,060 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-17 22:30:24,060 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-17 22:30:24,060 WARN L170 areAnnotationChecker]: mainErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2020-07-17 22:30:24,061 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:30:24,061 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:30:24,061 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:30:24,061 INFO L163 areAnnotationChecker]: CFG has 2 edges. 2 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:30:24,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:30:24 BoogieIcfgContainer [2020-07-17 22:30:24,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:30:24,078 INFO L168 Benchmark]: Toolchain (without parser) took 2866.39 ms. Allocated memory was 134.7 MB in the beginning and 224.9 MB in the end (delta: 90.2 MB). Free memory was 98.9 MB in the beginning and 84.6 MB in the end (delta: 14.3 MB). Peak memory consumption was 104.5 MB. Max. memory is 7.1 GB. [2020-07-17 22:30:24,079 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 134.7 MB. Free memory is still 117.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 22:30:24,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.60 ms. Allocated memory is still 134.7 MB. Free memory was 98.5 MB in the beginning and 88.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:30:24,083 INFO L168 Benchmark]: Boogie Preprocessor took 138.34 ms. Allocated memory was 134.7 MB in the beginning and 198.7 MB in the end (delta: 64.0 MB). Free memory was 88.6 MB in the beginning and 176.0 MB in the end (delta: -87.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:30:24,085 INFO L168 Benchmark]: RCFGBuilder took 350.64 ms. Allocated memory is still 198.7 MB. Free memory was 176.0 MB in the beginning and 157.4 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2020-07-17 22:30:24,088 INFO L168 Benchmark]: TraceAbstraction took 2068.36 ms. Allocated memory was 198.7 MB in the beginning and 224.9 MB in the end (delta: 26.2 MB). Free memory was 157.4 MB in the beginning and 84.6 MB in the end (delta: 72.9 MB). Peak memory consumption was 99.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:30:24,105 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 0.25 ms. Allocated memory is still 134.7 MB. Free memory is still 117.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 297.60 ms. Allocated memory is still 134.7 MB. Free memory was 98.5 MB in the beginning and 88.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.34 ms. Allocated memory was 134.7 MB in the beginning and 198.7 MB in the end (delta: 64.0 MB). Free memory was 88.6 MB in the beginning and 176.0 MB in the end (delta: -87.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 350.64 ms. Allocated memory is still 198.7 MB. Free memory was 176.0 MB in the beginning and 157.4 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2068.36 ms. Allocated memory was 198.7 MB in the beginning and 224.9 MB in the end (delta: 26.2 MB). Free memory was 157.4 MB in the beginning and 84.6 MB in the end (delta: 72.9 MB). Peak memory consumption was 99.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: 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: 11]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 30 SDslu, 69 SDs, 0 SdLazy, 118 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 16 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1464 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 correct! Received shutdown request...