/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 0.1.25-8fc6572 [2020-07-10 15:06:43,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:06:43,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:06:43,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:06:43,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:06:43,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:06:43,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:06:43,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:06:43,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:06:43,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:06:43,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:06:43,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:06:43,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:06:43,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:06:43,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:06:43,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:06:43,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:06:43,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:06:43,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:06:43,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:06:43,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:06:43,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:06:43,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:06:43,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:06:43,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:06:43,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:06:43,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:06:43,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:06:43,159 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-10 15:06:43,173 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:06:43,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:06:43,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:06:43,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:06:43,175 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:06:43,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:06:43,176 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:06:43,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:06:43,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:06:43,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:06:43,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:06:43,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:06:43,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:06:43,177 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:06:43,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:06:43,178 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:06:43,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:06:43,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:06:43,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:06:43,178 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:06:43,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:06:43,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:06:43,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:06:43,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:06:43,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:06:43,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:06:43,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:06:43,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:06:43,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:06:43,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:06:43,458 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:06:43,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:06:43,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:06:43,480 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:06:43,480 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:06:43,481 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test18.c [2020-07-10 15:06:43,560 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1879b5fbb/e52476213a5641cebdfbd2de996c3579/FLAG2cd7d533b [2020-07-10 15:06:44,012 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:06:44,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test18.c [2020-07-10 15:06:44,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1879b5fbb/e52476213a5641cebdfbd2de996c3579/FLAG2cd7d533b [2020-07-10 15:06:44,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1879b5fbb/e52476213a5641cebdfbd2de996c3579 [2020-07-10 15:06:44,430 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:06:44,432 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:06:44,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:06:44,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:06:44,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:06:44,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:06:44" (1/1) ... [2020-07-10 15:06:44,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4a9cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:44, skipping insertion in model container [2020-07-10 15:06:44,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:06:44" (1/1) ... [2020-07-10 15:06:44,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:06:44,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:06:44,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:06:44,748 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:06:44,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:06:44,785 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:06:44,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:44 WrapperNode [2020-07-10 15:06:44,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:06:44,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:06:44,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:06:44,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:06:44,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:44" (1/1) ... [2020-07-10 15:06:44,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:44" (1/1) ... [2020-07-10 15:06:44,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:44" (1/1) ... [2020-07-10 15:06:44,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:44" (1/1) ... [2020-07-10 15:06:44,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:44" (1/1) ... [2020-07-10 15:06:44,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:44" (1/1) ... [2020-07-10 15:06:44,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:44" (1/1) ... [2020-07-10 15:06:44,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:06:44,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:06:44,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:06:44,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:06:44,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:06:44,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:06:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:06:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-07-10 15:06:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-07-10 15:06:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:06:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:06:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-07-10 15:06:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-10 15:06:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-10 15:06:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-07-10 15:06:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 15:06:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 15:06:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 15:06:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:06:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 15:06:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:06:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:06:45,335 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:06:45,336 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-10 15:06:45,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:06:45 BoogieIcfgContainer [2020-07-10 15:06:45,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:06:45,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:06:45,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:06:45,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:06:45,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:06:44" (1/3) ... [2020-07-10 15:06:45,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2564d835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:06:45, skipping insertion in model container [2020-07-10 15:06:45,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:44" (2/3) ... [2020-07-10 15:06:45,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2564d835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:06:45, skipping insertion in model container [2020-07-10 15:06:45,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:06:45" (3/3) ... [2020-07-10 15:06:45,355 INFO L109 eAbstractionObserver]: Analyzing ICFG test18.c [2020-07-10 15:06:45,367 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:06:45,374 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:06:45,387 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:06:45,409 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:06:45,409 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:06:45,409 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:06:45,409 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:06:45,409 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:06:45,409 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:06:45,410 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:06:45,410 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:06:45,424 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-10 15:06:45,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-10 15:06:45,430 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:06:45,431 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:06:45,431 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:06:45,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:06:45,436 INFO L82 PathProgramCache]: Analyzing trace with hash 731851180, now seen corresponding path program 1 times [2020-07-10 15:06:45,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:06:45,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696219307] [2020-07-10 15:06:45,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:06:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:06:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:06:45,793 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 [2020-07-10 15:06:45,794 INFO L280 TraceCheckUtils]: 1: Hoare triple {26#true} assume true; {26#true} is VALID [2020-07-10 15:06:45,795 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {26#true} {26#true} #25#return; {26#true} is VALID [2020-07-10 15:06:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:06:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:06:46,082 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 [2020-07-10 15:06:46,084 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 [2020-07-10 15:06:46,088 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 [2020-07-10 15:06:46,091 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 [2020-07-10 15:06:46,096 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 [2020-07-10 15:06:46,098 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 [2020-07-10 15:06:46,099 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 [2020-07-10 15:06:46,103 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 [2020-07-10 15:06:46,105 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 [2020-07-10 15:06:46,106 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 [2020-07-10 15:06:46,109 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 [2020-07-10 15:06:46,112 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 [2020-07-10 15:06:46,112 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 [2020-07-10 15:06:46,113 INFO L280 TraceCheckUtils]: 2: Hoare triple {26#true} assume true; {26#true} is VALID [2020-07-10 15:06:46,113 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26#true} {26#true} #25#return; {26#true} is VALID [2020-07-10 15:06:46,114 INFO L263 TraceCheckUtils]: 4: Hoare triple {26#true} call #t~ret3 := main(); {26#true} is VALID [2020-07-10 15:06:46,114 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 [2020-07-10 15:06:46,117 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 [2020-07-10 15:06:46,119 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 [2020-07-10 15:06:46,122 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 [2020-07-10 15:06:46,124 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 [2020-07-10 15:06:46,125 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 [2020-07-10 15:06:46,128 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 [2020-07-10 15:06:46,130 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 [2020-07-10 15:06:46,131 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 [2020-07-10 15:06:46,133 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 [2020-07-10 15:06:46,136 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 [2020-07-10 15:06:46,138 INFO L280 TraceCheckUtils]: 16: Hoare triple {40#(= 0 |main_#t~mem2|)} assume 0 != #t~mem2;havoc #t~mem2; {27#false} is VALID [2020-07-10 15:06:46,139 INFO L280 TraceCheckUtils]: 17: Hoare triple {27#false} assume !false; {27#false} is VALID [2020-07-10 15:06:46,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:06:46,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696219307] [2020-07-10 15:06:46,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:06:46,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-10 15:06:46,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378139421] [2020-07-10 15:06:46,156 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-07-10 15:06:46,159 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:06:46,163 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-10 15:06:46,208 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:06:46,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-10 15:06:46,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:06:46,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-10 15:06:46,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-07-10 15:06:46,222 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 11 states. [2020-07-10 15:06:46,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:06:46,857 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-07-10 15:06:46,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-10 15:06:46,857 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-07-10 15:06:46,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:06:46,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-10 15:06:46,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 26 transitions. [2020-07-10 15:06:46,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-10 15:06:46,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 26 transitions. [2020-07-10 15:06:46,878 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 26 transitions. [2020-07-10 15:06:46,927 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:06:46,933 INFO L225 Difference]: With dead ends: 27 [2020-07-10 15:06:46,934 INFO L226 Difference]: Without dead ends: 0 [2020-07-10 15:06:46,938 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 [2020-07-10 15:06:46,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-10 15:06:46,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-10 15:06:46,963 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:06:46,963 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-10 15:06:46,964 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 15:06:46,964 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 15:06:46,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:06:46,965 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 15:06:46,965 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:06:46,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:06:46,966 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:06:46,966 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 15:06:46,966 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 15:06:46,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:06:46,967 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 15:06:46,967 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:06:46,967 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:06:46,968 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:06:46,968 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:06:46,968 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:06:46,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-10 15:06:46,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-10 15:06:46,970 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-07-10 15:06:46,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:06:46,971 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-10 15:06:46,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-10 15:06:46,971 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:06:46,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:06:46,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:06:46,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-10 15:06:47,126 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-10 15:06:47,127 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)|)) [2020-07-10 15:06:47,127 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-10 15:06:47,127 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|)) [2020-07-10 15:06:47,128 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-07-10 15:06:47,128 INFO L268 CegarLoopResult]: For program point fEXIT(lines 8 11) no Hoare annotation was computed. [2020-07-10 15:06:47,128 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)|)) [2020-07-10 15:06:47,129 INFO L268 CegarLoopResult]: For program point fFINAL(lines 8 11) no Hoare annotation was computed. [2020-07-10 15:06:47,129 INFO L268 CegarLoopResult]: For program point gEXIT(lines 4 6) no Hoare annotation was computed. [2020-07-10 15:06:47,129 INFO L268 CegarLoopResult]: For program point gFINAL(lines 4 6) no Hoare annotation was computed. [2020-07-10 15:06:47,129 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)|)) [2020-07-10 15:06:47,129 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-10 15:06:47,130 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-10 15:06:47,130 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-10 15:06:47,130 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-10 15:06:47,130 INFO L264 CegarLoopResult]: At program point L17(lines 13 24) the Hoare annotation is: false [2020-07-10 15:06:47,130 INFO L268 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-07-10 15:06:47,131 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2020-07-10 15:06:47,131 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)|)) [2020-07-10 15:06:47,131 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-07-10 15:06:47,131 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)|)) [2020-07-10 15:06:47,132 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 24) no Hoare annotation was computed. [2020-07-10 15:06:47,132 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 24) no Hoare annotation was computed. [2020-07-10 15:06:47,137 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:06:47,140 WARN L170 areAnnotationChecker]: gFINAL has no Hoare annotation [2020-07-10 15:06:47,143 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:06:47,144 WARN L170 areAnnotationChecker]: L9-1 has no Hoare annotation [2020-07-10 15:06:47,146 WARN L170 areAnnotationChecker]: gFINAL has no Hoare annotation [2020-07-10 15:06:47,146 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:06:47,147 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2020-07-10 15:06:47,150 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:06:47,150 WARN L170 areAnnotationChecker]: L9-1 has no Hoare annotation [2020-07-10 15:06:47,150 WARN L170 areAnnotationChecker]: gEXIT has no Hoare annotation [2020-07-10 15:06:47,150 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:06:47,150 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2020-07-10 15:06:47,151 WARN L170 areAnnotationChecker]: fFINAL has no Hoare annotation [2020-07-10 15:06:47,151 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-10 15:06:47,151 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-10 15:06:47,151 WARN L170 areAnnotationChecker]: fEXIT has no Hoare annotation [2020-07-10 15:06:47,151 WARN L170 areAnnotationChecker]: mainErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2020-07-10 15:06:47,151 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:06:47,152 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:06:47,152 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:06:47,152 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. [2020-07-10 15:06:47,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:06:47 BoogieIcfgContainer [2020-07-10 15:06:47,160 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:06:47,164 INFO L168 Benchmark]: Toolchain (without parser) took 2731.18 ms. Allocated memory was 145.8 MB in the beginning and 235.4 MB in the end (delta: 89.7 MB). Free memory was 103.4 MB in the beginning and 83.3 MB in the end (delta: 20.1 MB). Peak memory consumption was 109.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:47,165 INFO L168 Benchmark]: CDTParser took 1.76 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-10 15:06:47,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.76 ms. Allocated memory is still 145.8 MB. Free memory was 103.2 MB in the beginning and 93.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:47,167 INFO L168 Benchmark]: Boogie Preprocessor took 136.32 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 93.1 MB in the beginning and 179.3 MB in the end (delta: -86.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:47,168 INFO L168 Benchmark]: RCFGBuilder took 421.83 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 158.1 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:47,169 INFO L168 Benchmark]: TraceAbstraction took 1814.59 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 158.1 MB in the beginning and 83.3 MB in the end (delta: 74.8 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:47,173 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.76 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 352.76 ms. Allocated memory is still 145.8 MB. Free memory was 103.2 MB in the beginning and 93.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.32 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 93.1 MB in the beginning and 179.3 MB in the end (delta: -86.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 421.83 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 158.1 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1814.59 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 158.1 MB in the beginning and 83.3 MB in the end (delta: 74.8 MB). Peak memory consumption was 108.4 MB. 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: 1.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.7s, 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, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s 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...