/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:21:23,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:21:23,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:21:23,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:21:23,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:21:23,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:21:23,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:21:23,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:21:23,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:21:23,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:21:23,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:21:23,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:21:23,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:21:23,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:21:23,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:21:23,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:21:23,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:21:23,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:21:23,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:21:23,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:21:23,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:21:23,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:21:23,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:21:23,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:21:23,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 00:21:23,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 00:21:23,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 00:21:23,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 00:21:23,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 00:21:23,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 00:21:23,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 00:21:23,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 00:21:23,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 00:21:23,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 00:21:23,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 00:21:23,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 00:21:23,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 00:21:23,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 00:21:23,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:21:23,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:21:23,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:21:23,905 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:21:23,915 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:21:23,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:21:23,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:21:23,916 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:21:23,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:21:23,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:21:23,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:21:23,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:21:23,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:21:23,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:21:23,918 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:21:23,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:21:23,918 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:21:23,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:21:23,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:21:23,919 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:21:23,919 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:21:23,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:21:23,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:21:23,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:21:23,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:21:23,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:21:23,920 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:21:24,185 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:21:24,202 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:21:24,205 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:21:24,207 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:21:24,207 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:21:24,208 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test03.c [2020-07-18 00:21:24,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9158f653e/231fdf9c30a444a38af5498a4fd499b5/FLAGeb5194c40 [2020-07-18 00:21:24,760 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:21:24,760 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test03.c [2020-07-18 00:21:24,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9158f653e/231fdf9c30a444a38af5498a4fd499b5/FLAGeb5194c40 [2020-07-18 00:21:25,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9158f653e/231fdf9c30a444a38af5498a4fd499b5 [2020-07-18 00:21:25,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:21:25,120 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:21:25,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:21:25,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:21:25,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:21:25,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:21:25" (1/1) ... [2020-07-18 00:21:25,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7449ceae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:25, skipping insertion in model container [2020-07-18 00:21:25,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:21:25" (1/1) ... [2020-07-18 00:21:25,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:21:25,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:21:25,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:21:25,317 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:21:25,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:21:25,361 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:21:25,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:25 WrapperNode [2020-07-18 00:21:25,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:21:25,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:21:25,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:21:25,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:21:25,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:25" (1/1) ... [2020-07-18 00:21:25,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:25" (1/1) ... [2020-07-18 00:21:25,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:25" (1/1) ... [2020-07-18 00:21:25,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:25" (1/1) ... [2020-07-18 00:21:25,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:25" (1/1) ... [2020-07-18 00:21:25,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:25" (1/1) ... [2020-07-18 00:21:25,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:25" (1/1) ... [2020-07-18 00:21:25,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:21:25,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:21:25,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:21:25,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:21:25,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:25" (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 [2020-07-18 00:21:25,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:21:25,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:21:25,556 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-07-18 00:21:25,556 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:21:25,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:21:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-07-18 00:21:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:21:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:21:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:21:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:21:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:21:25,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:21:25,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:21:25,950 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:21:25,950 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-18 00:21:25,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:21:25 BoogieIcfgContainer [2020-07-18 00:21:25,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:21:25,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:21:25,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:21:25,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:21:25,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:21:25" (1/3) ... [2020-07-18 00:21:25,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb03482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:21:25, skipping insertion in model container [2020-07-18 00:21:25,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:25" (2/3) ... [2020-07-18 00:21:25,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb03482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:21:25, skipping insertion in model container [2020-07-18 00:21:25,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:21:25" (3/3) ... [2020-07-18 00:21:25,962 INFO L109 eAbstractionObserver]: Analyzing ICFG test03.c [2020-07-18 00:21:25,973 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:21:25,981 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:21:25,995 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:21:26,016 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:21:26,017 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:21:26,017 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:21:26,017 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:21:26,017 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:21:26,018 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:21:26,018 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:21:26,018 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:21:26,033 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-07-18 00:21:26,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-18 00:21:26,045 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:21:26,046 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-18 00:21:26,046 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:21:26,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:21:26,053 INFO L82 PathProgramCache]: Analyzing trace with hash -510689140, now seen corresponding path program 1 times [2020-07-18 00:21:26,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:21:26,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761009786] [2020-07-18 00:21:26,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:21:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:21:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:21:26,488 INFO L280 TraceCheckUtils]: 0: Hoare triple {65#(and (= ~q~0 |old(~q~0)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {45#true} is VALID [2020-07-18 00:21:26,489 INFO L280 TraceCheckUtils]: 1: Hoare triple {45#true} #valid := #valid[0 := 0]; {45#true} is VALID [2020-07-18 00:21:26,489 INFO L280 TraceCheckUtils]: 2: Hoare triple {45#true} assume 0 < #StackHeapBarrier; {45#true} is VALID [2020-07-18 00:21:26,490 INFO L280 TraceCheckUtils]: 3: Hoare triple {45#true} ~q~0 := 0; {45#true} is VALID [2020-07-18 00:21:26,490 INFO L280 TraceCheckUtils]: 4: Hoare triple {45#true} assume true; {45#true} is VALID [2020-07-18 00:21:26,491 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {45#true} {45#true} #43#return; {45#true} is VALID [2020-07-18 00:21:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:21:26,624 INFO L280 TraceCheckUtils]: 0: Hoare triple {45#true} ~p1.base, ~p1.offset := #in~p1.base, #in~p1.offset; {66#(= |f_#in~p1.base| f_~p1.base)} is VALID [2020-07-18 00:21:26,626 INFO L280 TraceCheckUtils]: 1: Hoare triple {66#(= |f_#in~p1.base| f_~p1.base)} ~p2.base, ~p2.offset := #in~p2.base, #in~p2.offset; {67#(and (= |f_#in~p1.base| f_~p1.base) (= |f_#in~p2.base| f_~p2.base))} is VALID [2020-07-18 00:21:26,629 INFO L280 TraceCheckUtils]: 2: Hoare triple {67#(and (= |f_#in~p1.base| f_~p1.base) (= |f_#in~p2.base| f_~p2.base))} #res := (if ~p1.base == ~p2.base && ~p1.offset == ~p2.offset then 1 else 0); {68#(and (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|))} is VALID [2020-07-18 00:21:26,631 INFO L280 TraceCheckUtils]: 3: Hoare triple {68#(and (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|))} assume true; {68#(and (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|))} is VALID [2020-07-18 00:21:26,634 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {68#(and (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|))} {56#(not (= main_~p1~0.base main_~p2~0.base))} #47#return; {62#(= 0 |main_#t~ret0|)} is VALID [2020-07-18 00:21:26,637 INFO L263 TraceCheckUtils]: 0: Hoare triple {45#true} call ULTIMATE.init(); {65#(and (= ~q~0 |old(~q~0)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:21:26,637 INFO L280 TraceCheckUtils]: 1: Hoare triple {65#(and (= ~q~0 |old(~q~0)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {45#true} is VALID [2020-07-18 00:21:26,638 INFO L280 TraceCheckUtils]: 2: Hoare triple {45#true} #valid := #valid[0 := 0]; {45#true} is VALID [2020-07-18 00:21:26,638 INFO L280 TraceCheckUtils]: 3: Hoare triple {45#true} assume 0 < #StackHeapBarrier; {45#true} is VALID [2020-07-18 00:21:26,638 INFO L280 TraceCheckUtils]: 4: Hoare triple {45#true} ~q~0 := 0; {45#true} is VALID [2020-07-18 00:21:26,639 INFO L280 TraceCheckUtils]: 5: Hoare triple {45#true} assume true; {45#true} is VALID [2020-07-18 00:21:26,639 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {45#true} {45#true} #43#return; {45#true} is VALID [2020-07-18 00:21:26,640 INFO L263 TraceCheckUtils]: 7: Hoare triple {45#true} call #t~ret2 := main(); {45#true} is VALID [2020-07-18 00:21:26,646 INFO L280 TraceCheckUtils]: 8: Hoare triple {45#true} SUMMARY for call ~#a~0.base, ~#a~0.offset := #Ultimate.allocOnStack(4); srcloc: mainENTRY {53#(= 1 (select |#valid| |main_~#a~0.base|))} is VALID [2020-07-18 00:21:26,651 INFO L280 TraceCheckUtils]: 9: Hoare triple {53#(= 1 (select |#valid| |main_~#a~0.base|))} SUMMARY for call ~#b~0.base, ~#b~0.offset := #Ultimate.allocOnStack(4); srcloc: L11 {54#(not (= |main_~#b~0.base| |main_~#a~0.base|))} is VALID [2020-07-18 00:21:26,652 INFO L280 TraceCheckUtils]: 10: Hoare triple {54#(not (= |main_~#b~0.base| |main_~#a~0.base|))} ~q~0 := 0; {54#(not (= |main_~#b~0.base| |main_~#a~0.base|))} is VALID [2020-07-18 00:21:26,653 INFO L280 TraceCheckUtils]: 11: Hoare triple {54#(not (= |main_~#b~0.base| |main_~#a~0.base|))} ~p1~0.base, ~p1~0.offset := ~#a~0.base, ~#a~0.offset; {55#(and (= main_~p1~0.base |main_~#a~0.base|) (not (= |main_~#b~0.base| |main_~#a~0.base|)))} is VALID [2020-07-18 00:21:26,654 INFO L280 TraceCheckUtils]: 12: Hoare triple {55#(and (= main_~p1~0.base |main_~#a~0.base|) (not (= |main_~#b~0.base| |main_~#a~0.base|)))} ~p2~0.base, ~p2~0.offset := ~#b~0.base, ~#b~0.offset; {56#(not (= main_~p1~0.base main_~p2~0.base))} is VALID [2020-07-18 00:21:26,654 INFO L263 TraceCheckUtils]: 13: Hoare triple {56#(not (= main_~p1~0.base main_~p2~0.base))} call #t~ret0 := f(~p1~0.base, ~p1~0.offset, ~p2~0.base, ~p2~0.offset); {45#true} is VALID [2020-07-18 00:21:26,655 INFO L280 TraceCheckUtils]: 14: Hoare triple {45#true} ~p1.base, ~p1.offset := #in~p1.base, #in~p1.offset; {66#(= |f_#in~p1.base| f_~p1.base)} is VALID [2020-07-18 00:21:26,657 INFO L280 TraceCheckUtils]: 15: Hoare triple {66#(= |f_#in~p1.base| f_~p1.base)} ~p2.base, ~p2.offset := #in~p2.base, #in~p2.offset; {67#(and (= |f_#in~p1.base| f_~p1.base) (= |f_#in~p2.base| f_~p2.base))} is VALID [2020-07-18 00:21:26,658 INFO L280 TraceCheckUtils]: 16: Hoare triple {67#(and (= |f_#in~p1.base| f_~p1.base) (= |f_#in~p2.base| f_~p2.base))} #res := (if ~p1.base == ~p2.base && ~p1.offset == ~p2.offset then 1 else 0); {68#(and (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|))} is VALID [2020-07-18 00:21:26,659 INFO L280 TraceCheckUtils]: 17: Hoare triple {68#(and (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|))} assume true; {68#(and (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|))} is VALID [2020-07-18 00:21:26,662 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {68#(and (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|))} {56#(not (= main_~p1~0.base main_~p2~0.base))} #47#return; {62#(= 0 |main_#t~ret0|)} is VALID [2020-07-18 00:21:26,663 INFO L280 TraceCheckUtils]: 19: Hoare triple {62#(= 0 |main_#t~ret0|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {62#(= 0 |main_#t~ret0|)} is VALID [2020-07-18 00:21:26,664 INFO L280 TraceCheckUtils]: 20: Hoare triple {62#(= 0 |main_#t~ret0|)} SUMMARY for call write~int(#t~ret0, ~#a~0.base, ~#a~0.offset, 4); srcloc: L18-2 {63#(= 0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} is VALID [2020-07-18 00:21:26,665 INFO L280 TraceCheckUtils]: 21: Hoare triple {63#(= 0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} havoc #t~ret0; {63#(= 0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} is VALID [2020-07-18 00:21:26,666 INFO L280 TraceCheckUtils]: 22: Hoare triple {63#(= 0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} SUMMARY for call #t~mem1 := read~int(~#a~0.base, ~#a~0.offset, 4); srcloc: L20 {64#(= 0 |main_#t~mem1|)} is VALID [2020-07-18 00:21:26,668 INFO L280 TraceCheckUtils]: 23: Hoare triple {64#(= 0 |main_#t~mem1|)} assume 0 != #t~mem1; {46#false} is VALID [2020-07-18 00:21:26,668 INFO L280 TraceCheckUtils]: 24: Hoare triple {46#false} havoc #t~mem1; {46#false} is VALID [2020-07-18 00:21:26,668 INFO L280 TraceCheckUtils]: 25: Hoare triple {46#false} assume !false; {46#false} is VALID [2020-07-18 00:21:26,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:21:26,676 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:21:26,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761009786] [2020-07-18 00:21:26,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:21:26,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-18 00:21:26,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351797600] [2020-07-18 00:21:26,688 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2020-07-18 00:21:26,691 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:21:26,695 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-18 00:21:26,750 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:21:26,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-18 00:21:26,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:21:26,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-18 00:21:26,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-07-18 00:21:26,764 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 13 states. [2020-07-18 00:21:27,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:21:27,721 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions. [2020-07-18 00:21:27,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-18 00:21:27,722 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2020-07-18 00:21:27,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:21:27,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-18 00:21:27,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 45 transitions. [2020-07-18 00:21:27,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-18 00:21:27,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 45 transitions. [2020-07-18 00:21:27,744 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 45 transitions. [2020-07-18 00:21:27,819 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:21:27,827 INFO L225 Difference]: With dead ends: 46 [2020-07-18 00:21:27,827 INFO L226 Difference]: Without dead ends: 0 [2020-07-18 00:21:27,831 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2020-07-18 00:21:27,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-18 00:21:27,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-18 00:21:27,857 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:21:27,858 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-18 00:21:27,859 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-18 00:21:27,859 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-18 00:21:27,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:21:27,860 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-18 00:21:27,860 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 00:21:27,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:21:27,861 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:21:27,861 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-18 00:21:27,861 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-18 00:21:27,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:21:27,862 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-18 00:21:27,862 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 00:21:27,862 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:21:27,863 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:21:27,863 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:21:27,863 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:21:27,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-18 00:21:27,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-18 00:21:27,865 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2020-07-18 00:21:27,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:21:27,866 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-18 00:21:27,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-18 00:21:27,866 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-18 00:21:27,866 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:21:27,867 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 00:21:27,867 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:21:27,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:21:27,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-18 00:21:28,285 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-18 00:21:28,285 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-18 00:21:28,286 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-18 00:21:28,286 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~q~0 |old(~q~0)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-18 00:21:28,286 INFO L271 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-07-18 00:21:28,287 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-18 00:21:28,287 INFO L264 CegarLoopResult]: At program point fEXIT(lines 4 6) the Hoare annotation is: (and (= |f_#in~p1.base| f_~p1.base) (= |f_#in~p2.base| f_~p2.base) (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|)) [2020-07-18 00:21:28,287 INFO L271 CegarLoopResult]: At program point fENTRY(lines 4 6) the Hoare annotation is: true [2020-07-18 00:21:28,287 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (and (= |f_#in~p1.base| f_~p1.base) (= |f_#in~p2.base| f_~p2.base)) [2020-07-18 00:21:28,287 INFO L264 CegarLoopResult]: At program point L4(lines 4 6) the Hoare annotation is: (= |f_#in~p1.base| f_~p1.base) [2020-07-18 00:21:28,288 INFO L264 CegarLoopResult]: At program point fFINAL(lines 4 6) the Hoare annotation is: (and (= |f_#in~p1.base| f_~p1.base) (= |f_#in~p2.base| f_~p2.base) (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|)) [2020-07-18 00:21:28,288 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-18 00:21:28,288 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-18 00:21:28,288 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-18 00:21:28,289 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-18 00:21:28,289 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: false [2020-07-18 00:21:28,289 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 10 28) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base)) [2020-07-18 00:21:28,290 INFO L264 CegarLoopResult]: At program point L21(lines 10 28) the Hoare annotation is: false [2020-07-18 00:21:28,290 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-18 00:21:28,290 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 10 28) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base)) [2020-07-18 00:21:28,290 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (= 1 (select |#valid| |main_~#a~0.base|)) [2020-07-18 00:21:28,291 INFO L264 CegarLoopResult]: At program point L11-1(line 11) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-18 00:21:28,291 INFO L264 CegarLoopResult]: At program point L11-2(line 11) the Hoare annotation is: (and (= 0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)) (= 1 (select |#valid| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-18 00:21:28,291 INFO L264 CegarLoopResult]: At program point L11-3(line 11) the Hoare annotation is: (and (= 0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)) (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-18 00:21:28,291 INFO L264 CegarLoopResult]: At program point L11-4(line 11) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base)) [2020-07-18 00:21:28,291 INFO L264 CegarLoopResult]: At program point L11-5(line 11) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base)) [2020-07-18 00:21:28,292 INFO L264 CegarLoopResult]: At program point L11-6(line 11) the Hoare annotation is: false [2020-07-18 00:21:28,292 INFO L264 CegarLoopResult]: At program point L11-7(line 11) the Hoare annotation is: false [2020-07-18 00:21:28,292 INFO L264 CegarLoopResult]: At program point L11-8(line 11) the Hoare annotation is: false [2020-07-18 00:21:28,292 INFO L264 CegarLoopResult]: At program point L11-9(line 11) the Hoare annotation is: false [2020-07-18 00:21:28,292 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) the Hoare annotation is: false [2020-07-18 00:21:28,293 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 10 28) the Hoare annotation is: (and (= ~q~0 |old(~q~0)|) (= |#valid| |old(#valid)|)) [2020-07-18 00:21:28,293 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (and (= 0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)) (= 1 (select |#valid| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-18 00:21:28,293 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (and (= 0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)) (= 1 (select |#valid| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-18 00:21:28,293 INFO L264 CegarLoopResult]: At program point L20-1(lines 20 22) the Hoare annotation is: (and (= 0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)) (= 1 (select |#valid| |main_~#a~0.base|)) (= 0 |main_#t~mem1|) (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-18 00:21:28,293 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-18 00:21:28,294 INFO L264 CegarLoopResult]: At program point L20-2(line 20) the Hoare annotation is: false [2020-07-18 00:21:28,294 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (= 0 |main_#t~ret0|) (not (= main_~p1~0.base main_~p2~0.base)) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-18 00:21:28,294 INFO L264 CegarLoopResult]: At program point L20-3(line 20) the Hoare annotation is: (and (= 0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)) (= 1 (select |#valid| |main_~#a~0.base|)) (= 0 |main_#t~mem1|) (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-18 00:21:28,294 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-18 00:21:28,294 INFO L264 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (= 0 |main_#t~ret0|) (not (= main_~p1~0.base main_~p2~0.base)) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-18 00:21:28,295 INFO L264 CegarLoopResult]: At program point L18-3(line 18) the Hoare annotation is: (and (= 0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)) (= 1 (select |#valid| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (= 0 |main_#t~ret0|) (not (= main_~p1~0.base main_~p2~0.base)) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-18 00:21:28,316 INFO L163 areAnnotationChecker]: CFG has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-18 00:21:28,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 12:21:28 BoogieIcfgContainer [2020-07-18 00:21:28,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 00:21:28,339 INFO L168 Benchmark]: Toolchain (without parser) took 3219.00 ms. Allocated memory was 138.4 MB in the beginning and 249.0 MB in the end (delta: 110.6 MB). Free memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: -37.7 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. [2020-07-18 00:21:28,340 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 138.4 MB. Free memory is still 120.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-18 00:21:28,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.44 ms. Allocated memory is still 138.4 MB. Free memory was 102.4 MB in the beginning and 91.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-18 00:21:28,343 INFO L168 Benchmark]: Boogie Preprocessor took 37.39 ms. Allocated memory is still 138.4 MB. Free memory was 91.9 MB in the beginning and 90.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2020-07-18 00:21:28,344 INFO L168 Benchmark]: RCFGBuilder took 554.21 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 90.2 MB in the beginning and 160.3 MB in the end (delta: -70.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-07-18 00:21:28,345 INFO L168 Benchmark]: TraceAbstraction took 2378.76 ms. Allocated memory was 201.9 MB in the beginning and 249.0 MB in the end (delta: 47.2 MB). Free memory was 159.3 MB in the beginning and 140.5 MB in the end (delta: 18.8 MB). Peak memory consumption was 66.0 MB. Max. memory is 7.1 GB. [2020-07-18 00:21:28,362 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 0.82 ms. Allocated memory is still 138.4 MB. Free memory is still 120.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 241.44 ms. Allocated memory is still 138.4 MB. Free memory was 102.4 MB in the beginning and 91.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.39 ms. Allocated memory is still 138.4 MB. Free memory was 91.9 MB in the beginning and 90.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 554.21 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 90.2 MB in the beginning and 160.3 MB in the end (delta: -70.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2378.76 ms. Allocated memory was 201.9 MB in the beginning and 249.0 MB in the end (delta: 47.2 MB). Free memory was 159.3 MB in the beginning and 140.5 MB in the end (delta: 18.8 MB). Peak memory consumption was 66.0 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: 10]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 4]: Procedure Contract for f Derived contract for procedure f: ((p1 == p1 && p2 == p2) && (p1 == p2 || \result <= 0)) && 0 <= \result - ProcedureContractResult [Line: 10]: Procedure Contract for main Derived contract for procedure main: !(p1 == p2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 53 SDslu, 128 SDs, 0 SdLazy, 118 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 42 LocationsWithAnnotation, 42 PreInvPairs, 46 NumberOfFragments, 365 HoareAnnotationTreeSize, 42 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 42 FomulaSimplificationsInter, 67 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...