/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/test18.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 12:25:05,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 12:25:05,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 12:25:05,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 12:25:05,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 12:25:05,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 12:25:05,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 12:25:05,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 12:25:05,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 12:25:05,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 12:25:05,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 12:25:05,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 12:25:05,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 12:25:05,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 12:25:05,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 12:25:05,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 12:25:05,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 12:25:05,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 12:25:05,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 12:25:05,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 12:25:05,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 12:25:05,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 12:25:05,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 12:25:05,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 12:25:05,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 12:25:05,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 12:25:05,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 12:25:05,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 12:25:05,113 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 [2020-07-08 12:25:05,155 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 12:25:05,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 12:25:05,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-08 12:25:05,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-08 12:25:05,157 INFO L138 SettingsManager]: * Use SBE=true [2020-07-08 12:25:05,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 12:25:05,158 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 12:25:05,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 12:25:05,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 12:25:05,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 12:25:05,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 12:25:05,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 12:25:05,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 12:25:05,162 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 12:25:05,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 12:25:05,162 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 12:25:05,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 12:25:05,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 12:25:05,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-08 12:25:05,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 12:25:05,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 12:25:05,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 12:25:05,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 12:25:05,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-08 12:25:05,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-08 12:25:05,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-08 12:25:05,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-08 12:25:05,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 12:25:05,170 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-08 12:25:05,170 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-08 12:25:05,500 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 12:25:05,513 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 12:25:05,517 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 12:25:05,518 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 12:25:05,519 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 12:25:05,520 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test18.c [2020-07-08 12:25:05,604 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1845a0dc8/0146281b4cbd4b72bb29d37bcdd547fb/FLAGa9ef1687f [2020-07-08 12:25:06,095 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 12:25:06,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test18.c [2020-07-08 12:25:06,101 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1845a0dc8/0146281b4cbd4b72bb29d37bcdd547fb/FLAGa9ef1687f [2020-07-08 12:25:06,521 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1845a0dc8/0146281b4cbd4b72bb29d37bcdd547fb [2020-07-08 12:25:06,531 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 12:25:06,534 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 12:25:06,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 12:25:06,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 12:25:06,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 12:25:06,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 12:25:06" (1/1) ... [2020-07-08 12:25:06,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@130ccb48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:25:06, skipping insertion in model container [2020-07-08 12:25:06,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 12:25:06" (1/1) ... [2020-07-08 12:25:06,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 12:25:06,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 12:25:06,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 12:25:06,808 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 12:25:06,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 12:25:06,859 INFO L208 MainTranslator]: Completed translation [2020-07-08 12:25:06,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:25:06 WrapperNode [2020-07-08 12:25:06,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 12:25:06,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 12:25:06,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 12:25:06,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 12:25:06,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:25:06" (1/1) ... [2020-07-08 12:25:06,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:25:06" (1/1) ... [2020-07-08 12:25:06,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:25:06" (1/1) ... [2020-07-08 12:25:06,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:25:06" (1/1) ... [2020-07-08 12:25:06,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:25:06" (1/1) ... [2020-07-08 12:25:06,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:25:06" (1/1) ... [2020-07-08 12:25:06,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:25:06" (1/1) ... [2020-07-08 12:25:06,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 12:25:06,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 12:25:06,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 12:25:06,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 12:25:06,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:25:06" (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 [2020-07-08 12:25:07,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 12:25:07,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 12:25:07,046 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-07-08 12:25:07,046 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-07-08 12:25:07,046 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 12:25:07,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 12:25:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-07-08 12:25:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-08 12:25:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-08 12:25:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-07-08 12:25:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 12:25:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 12:25:07,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 12:25:07,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 12:25:07,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 12:25:07,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 12:25:07,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 12:25:07,354 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 12:25:07,354 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-08 12:25:07,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 12:25:07 BoogieIcfgContainer [2020-07-08 12:25:07,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 12:25:07,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 12:25:07,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 12:25:07,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 12:25:07,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 12:25:06" (1/3) ... [2020-07-08 12:25:07,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9f45f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 12:25:07, skipping insertion in model container [2020-07-08 12:25:07,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:25:06" (2/3) ... [2020-07-08 12:25:07,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9f45f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 12:25:07, skipping insertion in model container [2020-07-08 12:25:07,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 12:25:07" (3/3) ... [2020-07-08 12:25:07,374 INFO L109 eAbstractionObserver]: Analyzing ICFG test18.c [2020-07-08 12:25:07,389 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-08 12:25:07,399 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 12:25:07,416 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 12:25:07,442 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 12:25:07,442 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 12:25:07,443 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-08 12:25:07,443 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 12:25:07,443 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 12:25:07,443 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 12:25:07,443 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 12:25:07,444 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 12:25:07,468 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-08 12:25:07,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-08 12:25:07,474 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:25:07,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 12:25:07,475 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:25:07,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:25:07,480 INFO L82 PathProgramCache]: Analyzing trace with hash 731851180, now seen corresponding path program 1 times [2020-07-08 12:25:07,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:25:07,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68411977] [2020-07-08 12:25:07,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:25:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:25:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:25:07,834 INFO L280 TraceCheckUtils]: 0: Hoare triple {41#(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; {26#true} is VALID [2020-07-08 12:25:07,835 INFO L280 TraceCheckUtils]: 1: Hoare triple {26#true} assume true; {26#true} is VALID [2020-07-08 12:25:07,835 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {26#true} {26#true} #25#return; {26#true} is VALID [2020-07-08 12:25:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:25:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:25:08,196 INFO L280 TraceCheckUtils]: 0: Hoare triple {49#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~ppa.base, ~ppa.offset := #in~ppa.base, #in~ppa.offset;~ppb.base, ~ppb.offset := #in~ppb.base, #in~ppb.offset;call #t~mem0.base, #t~mem0.offset := read~$Pointer$(~ppb.base, ~ppb.offset, 4);call write~$Pointer$(#t~mem0.base, #t~mem0.offset, ~ppa.base, ~ppa.offset, 4);havoc #t~mem0.base, #t~mem0.offset; {50#(and (= (select (select |#memory_$Pointer$.offset| |g_#in~ppa.base|) |g_#in~ppa.offset|) (select (select |old(#memory_$Pointer$.offset)| |g_#in~ppb.base|) |g_#in~ppb.offset|)) (= (select (select |old(#memory_$Pointer$.base)| |g_#in~ppb.base|) |g_#in~ppb.offset|) (select (select |#memory_$Pointer$.base| |g_#in~ppa.base|) |g_#in~ppa.offset|)))} is VALID [2020-07-08 12:25:08,198 INFO L280 TraceCheckUtils]: 1: Hoare triple {50#(and (= (select (select |#memory_$Pointer$.offset| |g_#in~ppa.base|) |g_#in~ppa.offset|) (select (select |old(#memory_$Pointer$.offset)| |g_#in~ppb.base|) |g_#in~ppb.offset|)) (= (select (select |old(#memory_$Pointer$.base)| |g_#in~ppb.base|) |g_#in~ppb.offset|) (select (select |#memory_$Pointer$.base| |g_#in~ppa.base|) |g_#in~ppa.offset|)))} assume true; {50#(and (= (select (select |#memory_$Pointer$.offset| |g_#in~ppa.base|) |g_#in~ppa.offset|) (select (select |old(#memory_$Pointer$.offset)| |g_#in~ppb.base|) |g_#in~ppb.offset|)) (= (select (select |old(#memory_$Pointer$.base)| |g_#in~ppb.base|) |g_#in~ppb.offset|) (select (select |#memory_$Pointer$.base| |g_#in~ppa.base|) |g_#in~ppa.offset|)))} is VALID [2020-07-08 12:25:08,203 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {50#(and (= (select (select |#memory_$Pointer$.offset| |g_#in~ppa.base|) |g_#in~ppa.offset|) (select (select |old(#memory_$Pointer$.offset)| |g_#in~ppb.base|) |g_#in~ppb.offset|)) (= (select (select |old(#memory_$Pointer$.base)| |g_#in~ppb.base|) |g_#in~ppb.offset|) (select (select |#memory_$Pointer$.base| |g_#in~ppa.base|) |g_#in~ppa.offset|)))} {43#(and (= (select (select |#memory_$Pointer$.base| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.base|) (= (select (select |#memory_$Pointer$.offset| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.offset|))} #23#return; {47#(and (= (select (select |#memory_$Pointer$.offset| |f_~#pa.base|) |f_~#pa.offset|) |f_#in~pb.offset|) (= |f_#in~pb.base| (select (select |#memory_$Pointer$.base| |f_~#pa.base|) |f_~#pa.offset|)))} is VALID [2020-07-08 12:25:08,207 INFO L280 TraceCheckUtils]: 0: Hoare triple {42#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} call ~#pa.base, ~#pa.offset := #Ultimate.allocOnStack(4);call write~$Pointer$(#in~pa.base, #in~pa.offset, ~#pa.base, ~#pa.offset, 4);call ~#pb.base, ~#pb.offset := #Ultimate.allocOnStack(4);call write~$Pointer$(#in~pb.base, #in~pb.offset, ~#pb.base, ~#pb.offset, 4); {43#(and (= (select (select |#memory_$Pointer$.base| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.base|) (= (select (select |#memory_$Pointer$.offset| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.offset|))} is VALID [2020-07-08 12:25:08,211 INFO L263 TraceCheckUtils]: 1: Hoare triple {43#(and (= (select (select |#memory_$Pointer$.base| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.base|) (= (select (select |#memory_$Pointer$.offset| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.offset|))} call g(~#pa.base, ~#pa.offset, ~#pb.base, ~#pb.offset); {49#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-08 12:25:08,213 INFO L280 TraceCheckUtils]: 2: Hoare triple {49#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~ppa.base, ~ppa.offset := #in~ppa.base, #in~ppa.offset;~ppb.base, ~ppb.offset := #in~ppb.base, #in~ppb.offset;call #t~mem0.base, #t~mem0.offset := read~$Pointer$(~ppb.base, ~ppb.offset, 4);call write~$Pointer$(#t~mem0.base, #t~mem0.offset, ~ppa.base, ~ppa.offset, 4);havoc #t~mem0.base, #t~mem0.offset; {50#(and (= (select (select |#memory_$Pointer$.offset| |g_#in~ppa.base|) |g_#in~ppa.offset|) (select (select |old(#memory_$Pointer$.offset)| |g_#in~ppb.base|) |g_#in~ppb.offset|)) (= (select (select |old(#memory_$Pointer$.base)| |g_#in~ppb.base|) |g_#in~ppb.offset|) (select (select |#memory_$Pointer$.base| |g_#in~ppa.base|) |g_#in~ppa.offset|)))} is VALID [2020-07-08 12:25:08,215 INFO L280 TraceCheckUtils]: 3: Hoare triple {50#(and (= (select (select |#memory_$Pointer$.offset| |g_#in~ppa.base|) |g_#in~ppa.offset|) (select (select |old(#memory_$Pointer$.offset)| |g_#in~ppb.base|) |g_#in~ppb.offset|)) (= (select (select |old(#memory_$Pointer$.base)| |g_#in~ppb.base|) |g_#in~ppb.offset|) (select (select |#memory_$Pointer$.base| |g_#in~ppa.base|) |g_#in~ppa.offset|)))} assume true; {50#(and (= (select (select |#memory_$Pointer$.offset| |g_#in~ppa.base|) |g_#in~ppa.offset|) (select (select |old(#memory_$Pointer$.offset)| |g_#in~ppb.base|) |g_#in~ppb.offset|)) (= (select (select |old(#memory_$Pointer$.base)| |g_#in~ppb.base|) |g_#in~ppb.offset|) (select (select |#memory_$Pointer$.base| |g_#in~ppa.base|) |g_#in~ppa.offset|)))} is VALID [2020-07-08 12:25:08,220 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {50#(and (= (select (select |#memory_$Pointer$.offset| |g_#in~ppa.base|) |g_#in~ppa.offset|) (select (select |old(#memory_$Pointer$.offset)| |g_#in~ppb.base|) |g_#in~ppb.offset|)) (= (select (select |old(#memory_$Pointer$.base)| |g_#in~ppb.base|) |g_#in~ppb.offset|) (select (select |#memory_$Pointer$.base| |g_#in~ppa.base|) |g_#in~ppa.offset|)))} {43#(and (= (select (select |#memory_$Pointer$.base| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.base|) (= (select (select |#memory_$Pointer$.offset| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.offset|))} #23#return; {47#(and (= (select (select |#memory_$Pointer$.offset| |f_~#pa.base|) |f_~#pa.offset|) |f_#in~pb.offset|) (= |f_#in~pb.base| (select (select |#memory_$Pointer$.base| |f_~#pa.base|) |f_~#pa.offset|)))} is VALID [2020-07-08 12:25:08,223 INFO L280 TraceCheckUtils]: 5: Hoare triple {47#(and (= (select (select |#memory_$Pointer$.offset| |f_~#pa.base|) |f_~#pa.offset|) |f_#in~pb.offset|) (= |f_#in~pb.base| (select (select |#memory_$Pointer$.base| |f_~#pa.base|) |f_~#pa.offset|)))} call #t~mem1.base, #t~mem1.offset := read~$Pointer$(~#pa.base, ~#pa.offset, 4);call write~int(0, #t~mem1.base, #t~mem1.offset, 4);havoc #t~mem1.base, #t~mem1.offset;call ULTIMATE.dealloc(~#pa.base, ~#pa.offset);havoc ~#pa.base, ~#pa.offset;call ULTIMATE.dealloc(~#pb.base, ~#pb.offset);havoc ~#pb.base, ~#pb.offset; {48#(= 0 (select (select |#memory_int| |f_#in~pb.base|) |f_#in~pb.offset|))} is VALID [2020-07-08 12:25:08,224 INFO L280 TraceCheckUtils]: 6: Hoare triple {48#(= 0 (select (select |#memory_int| |f_#in~pb.base|) |f_#in~pb.offset|))} assume true; {48#(= 0 (select (select |#memory_int| |f_#in~pb.base|) |f_#in~pb.offset|))} is VALID [2020-07-08 12:25:08,230 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {48#(= 0 (select (select |#memory_int| |f_#in~pb.base|) |f_#in~pb.offset|))} {26#true} #29#return; {39#(= 0 (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|))} is VALID [2020-07-08 12:25:08,236 INFO L263 TraceCheckUtils]: 0: Hoare triple {26#true} call ULTIMATE.init(); {41#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 12:25:08,237 INFO L280 TraceCheckUtils]: 1: Hoare triple {41#(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; {26#true} is VALID [2020-07-08 12:25:08,237 INFO L280 TraceCheckUtils]: 2: Hoare triple {26#true} assume true; {26#true} is VALID [2020-07-08 12:25:08,238 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26#true} {26#true} #25#return; {26#true} is VALID [2020-07-08 12:25:08,238 INFO L263 TraceCheckUtils]: 4: Hoare triple {26#true} call #t~ret3 := main(); {26#true} is VALID [2020-07-08 12:25:08,238 INFO L280 TraceCheckUtils]: 5: Hoare triple {26#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.allocOnStack(4);call ~#b~0.base, ~#b~0.offset := #Ultimate.allocOnStack(4); {26#true} is VALID [2020-07-08 12:25:08,242 INFO L263 TraceCheckUtils]: 6: Hoare triple {26#true} call f(~#a~0.base, ~#a~0.offset, ~#b~0.base, ~#b~0.offset); {42#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-08 12:25:08,245 INFO L280 TraceCheckUtils]: 7: Hoare triple {42#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} call ~#pa.base, ~#pa.offset := #Ultimate.allocOnStack(4);call write~$Pointer$(#in~pa.base, #in~pa.offset, ~#pa.base, ~#pa.offset, 4);call ~#pb.base, ~#pb.offset := #Ultimate.allocOnStack(4);call write~$Pointer$(#in~pb.base, #in~pb.offset, ~#pb.base, ~#pb.offset, 4); {43#(and (= (select (select |#memory_$Pointer$.base| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.base|) (= (select (select |#memory_$Pointer$.offset| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.offset|))} is VALID [2020-07-08 12:25:08,252 INFO L263 TraceCheckUtils]: 8: Hoare triple {43#(and (= (select (select |#memory_$Pointer$.base| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.base|) (= (select (select |#memory_$Pointer$.offset| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.offset|))} call g(~#pa.base, ~#pa.offset, ~#pb.base, ~#pb.offset); {49#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-08 12:25:08,259 INFO L280 TraceCheckUtils]: 9: Hoare triple {49#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~ppa.base, ~ppa.offset := #in~ppa.base, #in~ppa.offset;~ppb.base, ~ppb.offset := #in~ppb.base, #in~ppb.offset;call #t~mem0.base, #t~mem0.offset := read~$Pointer$(~ppb.base, ~ppb.offset, 4);call write~$Pointer$(#t~mem0.base, #t~mem0.offset, ~ppa.base, ~ppa.offset, 4);havoc #t~mem0.base, #t~mem0.offset; {50#(and (= (select (select |#memory_$Pointer$.offset| |g_#in~ppa.base|) |g_#in~ppa.offset|) (select (select |old(#memory_$Pointer$.offset)| |g_#in~ppb.base|) |g_#in~ppb.offset|)) (= (select (select |old(#memory_$Pointer$.base)| |g_#in~ppb.base|) |g_#in~ppb.offset|) (select (select |#memory_$Pointer$.base| |g_#in~ppa.base|) |g_#in~ppa.offset|)))} is VALID [2020-07-08 12:25:08,263 INFO L280 TraceCheckUtils]: 10: Hoare triple {50#(and (= (select (select |#memory_$Pointer$.offset| |g_#in~ppa.base|) |g_#in~ppa.offset|) (select (select |old(#memory_$Pointer$.offset)| |g_#in~ppb.base|) |g_#in~ppb.offset|)) (= (select (select |old(#memory_$Pointer$.base)| |g_#in~ppb.base|) |g_#in~ppb.offset|) (select (select |#memory_$Pointer$.base| |g_#in~ppa.base|) |g_#in~ppa.offset|)))} assume true; {50#(and (= (select (select |#memory_$Pointer$.offset| |g_#in~ppa.base|) |g_#in~ppa.offset|) (select (select |old(#memory_$Pointer$.offset)| |g_#in~ppb.base|) |g_#in~ppb.offset|)) (= (select (select |old(#memory_$Pointer$.base)| |g_#in~ppb.base|) |g_#in~ppb.offset|) (select (select |#memory_$Pointer$.base| |g_#in~ppa.base|) |g_#in~ppa.offset|)))} is VALID [2020-07-08 12:25:08,270 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {50#(and (= (select (select |#memory_$Pointer$.offset| |g_#in~ppa.base|) |g_#in~ppa.offset|) (select (select |old(#memory_$Pointer$.offset)| |g_#in~ppb.base|) |g_#in~ppb.offset|)) (= (select (select |old(#memory_$Pointer$.base)| |g_#in~ppb.base|) |g_#in~ppb.offset|) (select (select |#memory_$Pointer$.base| |g_#in~ppa.base|) |g_#in~ppa.offset|)))} {43#(and (= (select (select |#memory_$Pointer$.base| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.base|) (= (select (select |#memory_$Pointer$.offset| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.offset|))} #23#return; {47#(and (= (select (select |#memory_$Pointer$.offset| |f_~#pa.base|) |f_~#pa.offset|) |f_#in~pb.offset|) (= |f_#in~pb.base| (select (select |#memory_$Pointer$.base| |f_~#pa.base|) |f_~#pa.offset|)))} is VALID [2020-07-08 12:25:08,273 INFO L280 TraceCheckUtils]: 12: Hoare triple {47#(and (= (select (select |#memory_$Pointer$.offset| |f_~#pa.base|) |f_~#pa.offset|) |f_#in~pb.offset|) (= |f_#in~pb.base| (select (select |#memory_$Pointer$.base| |f_~#pa.base|) |f_~#pa.offset|)))} call #t~mem1.base, #t~mem1.offset := read~$Pointer$(~#pa.base, ~#pa.offset, 4);call write~int(0, #t~mem1.base, #t~mem1.offset, 4);havoc #t~mem1.base, #t~mem1.offset;call ULTIMATE.dealloc(~#pa.base, ~#pa.offset);havoc ~#pa.base, ~#pa.offset;call ULTIMATE.dealloc(~#pb.base, ~#pb.offset);havoc ~#pb.base, ~#pb.offset; {48#(= 0 (select (select |#memory_int| |f_#in~pb.base|) |f_#in~pb.offset|))} is VALID [2020-07-08 12:25:08,274 INFO L280 TraceCheckUtils]: 13: Hoare triple {48#(= 0 (select (select |#memory_int| |f_#in~pb.base|) |f_#in~pb.offset|))} assume true; {48#(= 0 (select (select |#memory_int| |f_#in~pb.base|) |f_#in~pb.offset|))} is VALID [2020-07-08 12:25:08,278 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {48#(= 0 (select (select |#memory_int| |f_#in~pb.base|) |f_#in~pb.offset|))} {26#true} #29#return; {39#(= 0 (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|))} is VALID [2020-07-08 12:25:08,280 INFO L280 TraceCheckUtils]: 15: Hoare triple {39#(= 0 (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|))} call #t~mem2 := read~int(~#b~0.base, ~#b~0.offset, 4); {40#(= 0 |main_#t~mem2|)} is VALID [2020-07-08 12:25:08,282 INFO L280 TraceCheckUtils]: 16: Hoare triple {40#(= 0 |main_#t~mem2|)} assume 0 != #t~mem2;havoc #t~mem2; {27#false} is VALID [2020-07-08 12:25:08,282 INFO L280 TraceCheckUtils]: 17: Hoare triple {27#false} assume !false; {27#false} is VALID [2020-07-08 12:25:08,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 12:25:08,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68411977] [2020-07-08 12:25:08,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 12:25:08,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-08 12:25:08,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088193040] [2020-07-08 12:25:08,307 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-07-08 12:25:08,314 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:25:08,320 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-08 12:25:08,380 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:25:08,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-08 12:25:08,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:25:08,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-08 12:25:08,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-07-08 12:25:08,401 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 11 states. [2020-07-08 12:25:09,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:25:09,104 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-07-08 12:25:09,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-08 12:25:09,105 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-07-08 12:25:09,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:25:09,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 12:25:09,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 26 transitions. [2020-07-08 12:25:09,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 12:25:09,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 26 transitions. [2020-07-08 12:25:09,125 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 26 transitions. [2020-07-08 12:25:09,176 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:25:09,184 INFO L225 Difference]: With dead ends: 27 [2020-07-08 12:25:09,185 INFO L226 Difference]: Without dead ends: 0 [2020-07-08 12:25:09,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-07-08 12:25:09,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-08 12:25:09,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-08 12:25:09,217 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:25:09,217 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-08 12:25:09,218 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 12:25:09,218 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 12:25:09,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:25:09,219 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 12:25:09,219 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 12:25:09,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:25:09,220 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:25:09,220 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 12:25:09,220 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 12:25:09,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:25:09,221 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 12:25:09,221 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 12:25:09,221 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:25:09,222 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:25:09,222 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:25:09,222 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:25:09,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-08 12:25:09,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-08 12:25:09,224 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-07-08 12:25:09,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:25:09,225 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-08 12:25:09,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-08 12:25:09,225 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 12:25:09,226 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:25:09,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 12:25:09,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-08 12:25:09,397 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-08 12:25:09,397 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-08 12:25:09,397 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-08 12:25:09,397 INFO L264 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.base| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.base|) (= (select (select |#memory_$Pointer$.offset| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.offset|)) [2020-07-08 12:25:09,398 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-07-08 12:25:09,398 INFO L268 CegarLoopResult]: For program point fEXIT(lines 8 11) no Hoare annotation was computed. [2020-07-08 12:25:09,398 INFO L264 CegarLoopResult]: At program point fENTRY(lines 8 11) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-08 12:25:09,398 INFO L268 CegarLoopResult]: For program point fFINAL(lines 8 11) no Hoare annotation was computed. [2020-07-08 12:25:09,398 INFO L268 CegarLoopResult]: For program point gEXIT(lines 4 6) no Hoare annotation was computed. [2020-07-08 12:25:09,398 INFO L268 CegarLoopResult]: For program point gFINAL(lines 4 6) no Hoare annotation was computed. [2020-07-08 12:25:09,399 INFO L264 CegarLoopResult]: At program point gENTRY(lines 4 6) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-08 12:25:09,399 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-08 12:25:09,399 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-08 12:25:09,399 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-08 12:25:09,399 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-08 12:25:09,399 INFO L264 CegarLoopResult]: At program point L17(lines 13 24) the Hoare annotation is: false [2020-07-08 12:25:09,400 INFO L268 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-07-08 12:25:09,400 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2020-07-08 12:25:09,400 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-08 12:25:09,400 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-07-08 12:25:09,400 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 13 24) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-08 12:25:09,401 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 24) no Hoare annotation was computed. [2020-07-08 12:25:09,401 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 24) no Hoare annotation was computed. [2020-07-08 12:25:09,406 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 12:25:09,409 WARN L170 areAnnotationChecker]: gFINAL has no Hoare annotation [2020-07-08 12:25:09,411 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 12:25:09,412 WARN L170 areAnnotationChecker]: L9-1 has no Hoare annotation [2020-07-08 12:25:09,414 WARN L170 areAnnotationChecker]: gFINAL has no Hoare annotation [2020-07-08 12:25:09,414 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 12:25:09,415 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2020-07-08 12:25:09,417 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 12:25:09,418 WARN L170 areAnnotationChecker]: L9-1 has no Hoare annotation [2020-07-08 12:25:09,418 WARN L170 areAnnotationChecker]: gEXIT has no Hoare annotation [2020-07-08 12:25:09,418 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 12:25:09,418 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2020-07-08 12:25:09,418 WARN L170 areAnnotationChecker]: fFINAL has no Hoare annotation [2020-07-08 12:25:09,418 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-08 12:25:09,419 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-08 12:25:09,419 WARN L170 areAnnotationChecker]: fEXIT has no Hoare annotation [2020-07-08 12:25:09,419 WARN L170 areAnnotationChecker]: mainErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2020-07-08 12:25:09,419 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 12:25:09,419 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 12:25:09,420 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 12:25:09,420 INFO L163 areAnnotationChecker]: CFG has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 12:25:09,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 12:25:09 BoogieIcfgContainer [2020-07-08 12:25:09,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 12:25:09,433 INFO L168 Benchmark]: Toolchain (without parser) took 2898.74 ms. Allocated memory was 141.0 MB in the beginning and 243.8 MB in the end (delta: 102.8 MB). Free memory was 105.5 MB in the beginning and 207.5 MB in the end (delta: -102.0 MB). Peak memory consumption was 794.8 kB. Max. memory is 7.1 GB. [2020-07-08 12:25:09,434 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 141.0 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-08 12:25:09,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.57 ms. Allocated memory is still 141.0 MB. Free memory was 105.3 MB in the beginning and 95.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-08 12:25:09,436 INFO L168 Benchmark]: Boogie Preprocessor took 126.04 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 95.2 MB in the beginning and 180.6 MB in the end (delta: -85.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-08 12:25:09,436 INFO L168 Benchmark]: RCFGBuilder took 371.65 ms. Allocated memory is still 202.9 MB. Free memory was 180.6 MB in the beginning and 159.6 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-07-08 12:25:09,437 INFO L168 Benchmark]: TraceAbstraction took 2069.87 ms. Allocated memory was 202.9 MB in the beginning and 243.8 MB in the end (delta: 40.9 MB). Free memory was 158.9 MB in the beginning and 207.5 MB in the end (delta: -48.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-08 12:25:09,441 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 141.0 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 325.57 ms. Allocated memory is still 141.0 MB. Free memory was 105.3 MB in the beginning and 95.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.04 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 95.2 MB in the beginning and 180.6 MB in the end (delta: -85.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 371.65 ms. Allocated memory is still 202.9 MB. Free memory was 180.6 MB in the beginning and 159.6 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2069.87 ms. Allocated memory was 202.9 MB in the beginning and 243.8 MB in the end (delta: 40.9 MB). Free memory was 158.9 MB in the beginning and 207.5 MB in the end (delta: -48.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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: 13]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 3 SDslu, 45 SDs, 0 SdLazy, 105 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 80 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 36 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 2414 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...