/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 20:22:21,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 20:22:21,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 20:22:21,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 20:22:21,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 20:22:21,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 20:22:21,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 20:22:21,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 20:22:21,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 20:22:21,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 20:22:21,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 20:22:21,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 20:22:21,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 20:22:21,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 20:22:21,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 20:22:21,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 20:22:21,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 20:22:21,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 20:22:21,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 20:22:21,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 20:22:21,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 20:22:21,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 20:22:21,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 20:22:21,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 20:22:21,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 20:22:21,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 20:22:21,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 20:22:21,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 20:22:21,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 20:22:21,955 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 20:22:21,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 20:22:21,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 20:22:21,958 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 20:22:21,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 20:22:21,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 20:22:21,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 20:22:21,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 20:22:21,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 20:22:21,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 20:22:21,959 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 20:22:21,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 20:22:21,960 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 20:22:21,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 20:22:21,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 20:22:21,962 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 20:22:21,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 20:22:21,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 20:22:21,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 20:22:21,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 20:22:21,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 20:22:21,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 20:22:21,963 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 20:22:22,287 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 20:22:22,304 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 20:22:22,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 20:22:22,310 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 20:22:22,310 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 20:22:22,311 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i [2020-07-10 20:22:22,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb5e8d6da/2c9c142e4ef44d33a5123e5f461644f4/FLAG7d90ead92 [2020-07-10 20:22:22,907 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 20:22:22,908 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i [2020-07-10 20:22:22,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb5e8d6da/2c9c142e4ef44d33a5123e5f461644f4/FLAG7d90ead92 [2020-07-10 20:22:23,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb5e8d6da/2c9c142e4ef44d33a5123e5f461644f4 [2020-07-10 20:22:23,271 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 20:22:23,275 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 20:22:23,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 20:22:23,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 20:22:23,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 20:22:23,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 08:22:23" (1/1) ... [2020-07-10 20:22:23,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f0c6637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:23, skipping insertion in model container [2020-07-10 20:22:23,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 08:22:23" (1/1) ... [2020-07-10 20:22:23,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 20:22:23,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 20:22:23,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 20:22:23,524 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 20:22:23,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 20:22:23,557 INFO L208 MainTranslator]: Completed translation [2020-07-10 20:22:23,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:23 WrapperNode [2020-07-10 20:22:23,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 20:22:23,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 20:22:23,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 20:22:23,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 20:22:23,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:23" (1/1) ... [2020-07-10 20:22:23,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:23" (1/1) ... [2020-07-10 20:22:23,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:23" (1/1) ... [2020-07-10 20:22:23,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:23" (1/1) ... [2020-07-10 20:22:23,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:23" (1/1) ... [2020-07-10 20:22:23,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:23" (1/1) ... [2020-07-10 20:22:23,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:23" (1/1) ... [2020-07-10 20:22:23,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 20:22:23,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 20:22:23,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 20:22:23,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 20:22:23,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:23" (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 20:22:23,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 20:22:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 20:22:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 20:22:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2020-07-10 20:22:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 20:22:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 20:22:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 20:22:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2020-07-10 20:22:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 20:22:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 20:22:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 20:22:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 20:22:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 20:22:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 20:22:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 20:22:24,103 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 20:22:24,103 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-10 20:22:24,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 08:22:24 BoogieIcfgContainer [2020-07-10 20:22:24,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 20:22:24,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 20:22:24,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 20:22:24,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 20:22:24,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 08:22:23" (1/3) ... [2020-07-10 20:22:24,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9d5cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 08:22:24, skipping insertion in model container [2020-07-10 20:22:24,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:23" (2/3) ... [2020-07-10 20:22:24,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9d5cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 08:22:24, skipping insertion in model container [2020-07-10 20:22:24,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 08:22:24" (3/3) ... [2020-07-10 20:22:24,116 INFO L109 eAbstractionObserver]: Analyzing ICFG verisec_NetBSD-libc_loop.i [2020-07-10 20:22:24,127 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 20:22:24,135 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 20:22:24,149 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 20:22:24,172 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 20:22:24,172 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 20:22:24,172 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 20:22:24,172 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 20:22:24,173 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 20:22:24,173 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 20:22:24,173 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 20:22:24,173 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 20:22:24,189 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-10 20:22:24,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-10 20:22:24,200 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:22:24,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 20:22:24,201 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:22:24,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:22:24,206 INFO L82 PathProgramCache]: Analyzing trace with hash -331406787, now seen corresponding path program 1 times [2020-07-10 20:22:24,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:22:24,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244687243] [2020-07-10 20:22:24,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:22:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:24,767 INFO L280 TraceCheckUtils]: 0: Hoare triple {58#(and (= ~tmp~0.base |old(~tmp~0.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {43#true} is VALID [2020-07-10 20:22:24,768 INFO L280 TraceCheckUtils]: 1: Hoare triple {43#true} #valid := #valid[0 := 0]; {43#true} is VALID [2020-07-10 20:22:24,768 INFO L280 TraceCheckUtils]: 2: Hoare triple {43#true} assume 0 < #StackHeapBarrier; {43#true} is VALID [2020-07-10 20:22:24,769 INFO L280 TraceCheckUtils]: 3: Hoare triple {43#true} ~tmp~0.base, ~tmp~0.offset := 0, 0; {43#true} is VALID [2020-07-10 20:22:24,769 INFO L280 TraceCheckUtils]: 4: Hoare triple {43#true} assume true; {43#true} is VALID [2020-07-10 20:22:24,770 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {43#true} {43#true} #55#return; {43#true} is VALID [2020-07-10 20:22:24,776 INFO L263 TraceCheckUtils]: 0: Hoare triple {43#true} call ULTIMATE.init(); {58#(and (= ~tmp~0.base |old(~tmp~0.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 20:22:24,776 INFO L280 TraceCheckUtils]: 1: Hoare triple {58#(and (= ~tmp~0.base |old(~tmp~0.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {43#true} is VALID [2020-07-10 20:22:24,777 INFO L280 TraceCheckUtils]: 2: Hoare triple {43#true} #valid := #valid[0 := 0]; {43#true} is VALID [2020-07-10 20:22:24,777 INFO L280 TraceCheckUtils]: 3: Hoare triple {43#true} assume 0 < #StackHeapBarrier; {43#true} is VALID [2020-07-10 20:22:24,777 INFO L280 TraceCheckUtils]: 4: Hoare triple {43#true} ~tmp~0.base, ~tmp~0.offset := 0, 0; {43#true} is VALID [2020-07-10 20:22:24,778 INFO L280 TraceCheckUtils]: 5: Hoare triple {43#true} assume true; {43#true} is VALID [2020-07-10 20:22:24,778 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {43#true} {43#true} #55#return; {43#true} is VALID [2020-07-10 20:22:24,779 INFO L263 TraceCheckUtils]: 7: Hoare triple {43#true} call #t~ret2 := main(); {43#true} is VALID [2020-07-10 20:22:24,784 INFO L280 TraceCheckUtils]: 8: Hoare triple {43#true} SUMMARY for call ~#pathbuf~0.base, ~#pathbuf~0.offset := #Ultimate.allocOnStack(8); srcloc: mainENTRY {51#(= 0 |main_~#pathbuf~0.offset|)} is VALID [2020-07-10 20:22:24,788 INFO L280 TraceCheckUtils]: 9: Hoare triple {51#(= 0 |main_~#pathbuf~0.offset|)} ~bound~0.base, ~bound~0.offset := ~#pathbuf~0.base, 32 + ~#pathbuf~0.offset - 4; {51#(= 0 |main_~#pathbuf~0.offset|)} is VALID [2020-07-10 20:22:24,789 INFO L280 TraceCheckUtils]: 10: Hoare triple {51#(= 0 |main_~#pathbuf~0.offset|)} ~tmp~0.base, ~tmp~0.offset := ~#pathbuf~0.base, 8 + ~#pathbuf~0.offset - 4; {52#(and (= 0 |main_~#pathbuf~0.offset|) (= ~tmp~0.base |main_~#pathbuf~0.base|) (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset))} is VALID [2020-07-10 20:22:24,794 INFO L263 TraceCheckUtils]: 11: Hoare triple {52#(and (= 0 |main_~#pathbuf~0.offset|) (= ~tmp~0.base |main_~#pathbuf~0.base|) (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset))} call #t~ret1 := glob2(~#pathbuf~0.base, ~#pathbuf~0.offset, ~bound~0.base, ~bound~0.offset); {53#(and (<= 4 ~tmp~0.offset) (= ~tmp~0.base |glob2_#in~pathbuf.base|) (= 0 |glob2_#in~pathbuf.offset|))} is VALID [2020-07-10 20:22:24,799 INFO L280 TraceCheckUtils]: 12: Hoare triple {53#(and (<= 4 ~tmp~0.offset) (= ~tmp~0.base |glob2_#in~pathbuf.base|) (= 0 |glob2_#in~pathbuf.offset|))} ~pathbuf.base, ~pathbuf.offset := #in~pathbuf.base, #in~pathbuf.offset; {54#(and (= 0 glob2_~pathbuf.offset) (<= 4 ~tmp~0.offset) (= ~tmp~0.base glob2_~pathbuf.base))} is VALID [2020-07-10 20:22:24,803 INFO L280 TraceCheckUtils]: 13: Hoare triple {54#(and (= 0 glob2_~pathbuf.offset) (<= 4 ~tmp~0.offset) (= ~tmp~0.base glob2_~pathbuf.base))} ~pathlim.base, ~pathlim.offset := #in~pathlim.base, #in~pathlim.offset; {54#(and (= 0 glob2_~pathbuf.offset) (<= 4 ~tmp~0.offset) (= ~tmp~0.base glob2_~pathbuf.base))} is VALID [2020-07-10 20:22:24,805 INFO L280 TraceCheckUtils]: 14: Hoare triple {54#(and (= 0 glob2_~pathbuf.offset) (<= 4 ~tmp~0.offset) (= ~tmp~0.base glob2_~pathbuf.base))} havoc ~p~0.base, ~p~0.offset; {54#(and (= 0 glob2_~pathbuf.offset) (<= 4 ~tmp~0.offset) (= ~tmp~0.base glob2_~pathbuf.base))} is VALID [2020-07-10 20:22:24,806 INFO L280 TraceCheckUtils]: 15: Hoare triple {54#(and (= 0 glob2_~pathbuf.offset) (<= 4 ~tmp~0.offset) (= ~tmp~0.base glob2_~pathbuf.base))} ~p~0.base, ~p~0.offset := ~pathbuf.base, ~pathbuf.offset; {55#(and (<= 4 ~tmp~0.offset) (= 0 glob2_~p~0.offset) (= ~tmp~0.base glob2_~p~0.base))} is VALID [2020-07-10 20:22:24,808 INFO L280 TraceCheckUtils]: 16: Hoare triple {55#(and (<= 4 ~tmp~0.offset) (= 0 glob2_~p~0.offset) (= ~tmp~0.base glob2_~p~0.base))} assume !!(~p~0.base == ~pathlim.base && ~p~0.offset <= ~pathlim.offset); {55#(and (<= 4 ~tmp~0.offset) (= 0 glob2_~p~0.offset) (= ~tmp~0.base glob2_~p~0.base))} is VALID [2020-07-10 20:22:24,810 INFO L263 TraceCheckUtils]: 17: Hoare triple {55#(and (<= 4 ~tmp~0.offset) (= 0 glob2_~p~0.offset) (= ~tmp~0.base glob2_~p~0.base))} call __VERIFIER_assert((if ~p~0.base == ~tmp~0.base && ~p~0.offset <= ~tmp~0.offset then 1 else 0)); {56#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-10 20:22:24,811 INFO L280 TraceCheckUtils]: 18: Hoare triple {56#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {57#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:22:24,812 INFO L280 TraceCheckUtils]: 19: Hoare triple {57#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {44#false} is VALID [2020-07-10 20:22:24,813 INFO L280 TraceCheckUtils]: 20: Hoare triple {44#false} assume !false; {44#false} is VALID [2020-07-10 20:22:24,820 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 20:22:24,821 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:22:24,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244687243] [2020-07-10 20:22:24,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:22:24,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-10 20:22:24,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896462635] [2020-07-10 20:22:24,835 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2020-07-10 20:22:24,838 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:22:24,843 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-10 20:22:24,884 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:24,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-10 20:22:24,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:22:24,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-10 20:22:24,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-07-10 20:22:24,898 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 10 states. [2020-07-10 20:22:26,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:26,150 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2020-07-10 20:22:26,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-10 20:22:26,151 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2020-07-10 20:22:26,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:22:26,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-10 20:22:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 85 transitions. [2020-07-10 20:22:26,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-10 20:22:26,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 85 transitions. [2020-07-10 20:22:26,172 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 85 transitions. [2020-07-10 20:22:26,309 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 85 edges. 85 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:26,322 INFO L225 Difference]: With dead ends: 76 [2020-07-10 20:22:26,322 INFO L226 Difference]: Without dead ends: 37 [2020-07-10 20:22:26,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2020-07-10 20:22:26,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-07-10 20:22:26,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2020-07-10 20:22:26,480 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:22:26,480 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand 34 states. [2020-07-10 20:22:26,481 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 34 states. [2020-07-10 20:22:26,481 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 34 states. [2020-07-10 20:22:26,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:26,486 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2020-07-10 20:22:26,486 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2020-07-10 20:22:26,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:22:26,487 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:22:26,487 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 37 states. [2020-07-10 20:22:26,487 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 37 states. [2020-07-10 20:22:26,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:26,491 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2020-07-10 20:22:26,491 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2020-07-10 20:22:26,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:22:26,492 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:22:26,492 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:22:26,493 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:22:26,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-07-10 20:22:26,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2020-07-10 20:22:26,497 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 21 [2020-07-10 20:22:26,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:22:26,498 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2020-07-10 20:22:26,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-10 20:22:26,498 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 34 states and 34 transitions. [2020-07-10 20:22:26,562 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:26,562 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2020-07-10 20:22:26,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-10 20:22:26,564 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:22:26,564 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 20:22:26,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 20:22:26,565 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:22:26,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:22:26,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1840112204, now seen corresponding path program 1 times [2020-07-10 20:22:26,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:22:26,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1617419985] [2020-07-10 20:22:26,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:22:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:26,930 INFO L280 TraceCheckUtils]: 0: Hoare triple {388#(and (= ~tmp~0.base |old(~tmp~0.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {367#true} is VALID [2020-07-10 20:22:26,930 INFO L280 TraceCheckUtils]: 1: Hoare triple {367#true} #valid := #valid[0 := 0]; {367#true} is VALID [2020-07-10 20:22:26,931 INFO L280 TraceCheckUtils]: 2: Hoare triple {367#true} assume 0 < #StackHeapBarrier; {367#true} is VALID [2020-07-10 20:22:26,931 INFO L280 TraceCheckUtils]: 3: Hoare triple {367#true} ~tmp~0.base, ~tmp~0.offset := 0, 0; {367#true} is VALID [2020-07-10 20:22:26,931 INFO L280 TraceCheckUtils]: 4: Hoare triple {367#true} assume true; {367#true} is VALID [2020-07-10 20:22:26,932 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {367#true} {367#true} #55#return; {367#true} is VALID [2020-07-10 20:22:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:26,954 INFO L280 TraceCheckUtils]: 0: Hoare triple {367#true} ~cond := #in~cond; {367#true} is VALID [2020-07-10 20:22:26,954 INFO L280 TraceCheckUtils]: 1: Hoare triple {367#true} assume !(0 == ~cond); {367#true} is VALID [2020-07-10 20:22:26,955 INFO L280 TraceCheckUtils]: 2: Hoare triple {367#true} assume true; {367#true} is VALID [2020-07-10 20:22:26,956 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {367#true} {379#(and (<= 4 ~tmp~0.offset) (= 0 glob2_~p~0.offset) (= ~tmp~0.base glob2_~p~0.base))} #53#return; {379#(and (<= 4 ~tmp~0.offset) (= 0 glob2_~p~0.offset) (= ~tmp~0.base glob2_~p~0.base))} is VALID [2020-07-10 20:22:26,957 INFO L263 TraceCheckUtils]: 0: Hoare triple {367#true} call ULTIMATE.init(); {388#(and (= ~tmp~0.base |old(~tmp~0.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 20:22:26,958 INFO L280 TraceCheckUtils]: 1: Hoare triple {388#(and (= ~tmp~0.base |old(~tmp~0.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {367#true} is VALID [2020-07-10 20:22:26,958 INFO L280 TraceCheckUtils]: 2: Hoare triple {367#true} #valid := #valid[0 := 0]; {367#true} is VALID [2020-07-10 20:22:26,958 INFO L280 TraceCheckUtils]: 3: Hoare triple {367#true} assume 0 < #StackHeapBarrier; {367#true} is VALID [2020-07-10 20:22:26,959 INFO L280 TraceCheckUtils]: 4: Hoare triple {367#true} ~tmp~0.base, ~tmp~0.offset := 0, 0; {367#true} is VALID [2020-07-10 20:22:26,959 INFO L280 TraceCheckUtils]: 5: Hoare triple {367#true} assume true; {367#true} is VALID [2020-07-10 20:22:26,959 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {367#true} {367#true} #55#return; {367#true} is VALID [2020-07-10 20:22:26,960 INFO L263 TraceCheckUtils]: 7: Hoare triple {367#true} call #t~ret2 := main(); {367#true} is VALID [2020-07-10 20:22:26,961 INFO L280 TraceCheckUtils]: 8: Hoare triple {367#true} SUMMARY for call ~#pathbuf~0.base, ~#pathbuf~0.offset := #Ultimate.allocOnStack(8); srcloc: mainENTRY {375#(= 0 |main_~#pathbuf~0.offset|)} is VALID [2020-07-10 20:22:26,961 INFO L280 TraceCheckUtils]: 9: Hoare triple {375#(= 0 |main_~#pathbuf~0.offset|)} ~bound~0.base, ~bound~0.offset := ~#pathbuf~0.base, 32 + ~#pathbuf~0.offset - 4; {375#(= 0 |main_~#pathbuf~0.offset|)} is VALID [2020-07-10 20:22:26,962 INFO L280 TraceCheckUtils]: 10: Hoare triple {375#(= 0 |main_~#pathbuf~0.offset|)} ~tmp~0.base, ~tmp~0.offset := ~#pathbuf~0.base, 8 + ~#pathbuf~0.offset - 4; {376#(and (= 0 |main_~#pathbuf~0.offset|) (= ~tmp~0.base |main_~#pathbuf~0.base|) (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset))} is VALID [2020-07-10 20:22:26,964 INFO L263 TraceCheckUtils]: 11: Hoare triple {376#(and (= 0 |main_~#pathbuf~0.offset|) (= ~tmp~0.base |main_~#pathbuf~0.base|) (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset))} call #t~ret1 := glob2(~#pathbuf~0.base, ~#pathbuf~0.offset, ~bound~0.base, ~bound~0.offset); {377#(and (<= 4 ~tmp~0.offset) (= ~tmp~0.base |glob2_#in~pathbuf.base|) (= 0 |glob2_#in~pathbuf.offset|))} is VALID [2020-07-10 20:22:26,965 INFO L280 TraceCheckUtils]: 12: Hoare triple {377#(and (<= 4 ~tmp~0.offset) (= ~tmp~0.base |glob2_#in~pathbuf.base|) (= 0 |glob2_#in~pathbuf.offset|))} ~pathbuf.base, ~pathbuf.offset := #in~pathbuf.base, #in~pathbuf.offset; {378#(and (= 0 glob2_~pathbuf.offset) (<= 4 ~tmp~0.offset) (= ~tmp~0.base glob2_~pathbuf.base))} is VALID [2020-07-10 20:22:26,966 INFO L280 TraceCheckUtils]: 13: Hoare triple {378#(and (= 0 glob2_~pathbuf.offset) (<= 4 ~tmp~0.offset) (= ~tmp~0.base glob2_~pathbuf.base))} ~pathlim.base, ~pathlim.offset := #in~pathlim.base, #in~pathlim.offset; {378#(and (= 0 glob2_~pathbuf.offset) (<= 4 ~tmp~0.offset) (= ~tmp~0.base glob2_~pathbuf.base))} is VALID [2020-07-10 20:22:26,967 INFO L280 TraceCheckUtils]: 14: Hoare triple {378#(and (= 0 glob2_~pathbuf.offset) (<= 4 ~tmp~0.offset) (= ~tmp~0.base glob2_~pathbuf.base))} havoc ~p~0.base, ~p~0.offset; {378#(and (= 0 glob2_~pathbuf.offset) (<= 4 ~tmp~0.offset) (= ~tmp~0.base glob2_~pathbuf.base))} is VALID [2020-07-10 20:22:26,967 INFO L280 TraceCheckUtils]: 15: Hoare triple {378#(and (= 0 glob2_~pathbuf.offset) (<= 4 ~tmp~0.offset) (= ~tmp~0.base glob2_~pathbuf.base))} ~p~0.base, ~p~0.offset := ~pathbuf.base, ~pathbuf.offset; {379#(and (<= 4 ~tmp~0.offset) (= 0 glob2_~p~0.offset) (= ~tmp~0.base glob2_~p~0.base))} is VALID [2020-07-10 20:22:26,968 INFO L280 TraceCheckUtils]: 16: Hoare triple {379#(and (<= 4 ~tmp~0.offset) (= 0 glob2_~p~0.offset) (= ~tmp~0.base glob2_~p~0.base))} assume !!(~p~0.base == ~pathlim.base && ~p~0.offset <= ~pathlim.offset); {379#(and (<= 4 ~tmp~0.offset) (= 0 glob2_~p~0.offset) (= ~tmp~0.base glob2_~p~0.base))} is VALID [2020-07-10 20:22:26,969 INFO L263 TraceCheckUtils]: 17: Hoare triple {379#(and (<= 4 ~tmp~0.offset) (= 0 glob2_~p~0.offset) (= ~tmp~0.base glob2_~p~0.base))} call __VERIFIER_assert((if ~p~0.base == ~tmp~0.base && ~p~0.offset <= ~tmp~0.offset then 1 else 0)); {367#true} is VALID [2020-07-10 20:22:26,969 INFO L280 TraceCheckUtils]: 18: Hoare triple {367#true} ~cond := #in~cond; {367#true} is VALID [2020-07-10 20:22:26,969 INFO L280 TraceCheckUtils]: 19: Hoare triple {367#true} assume !(0 == ~cond); {367#true} is VALID [2020-07-10 20:22:26,970 INFO L280 TraceCheckUtils]: 20: Hoare triple {367#true} assume true; {367#true} is VALID [2020-07-10 20:22:26,971 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {367#true} {379#(and (<= 4 ~tmp~0.offset) (= 0 glob2_~p~0.offset) (= ~tmp~0.base glob2_~p~0.base))} #53#return; {379#(and (<= 4 ~tmp~0.offset) (= 0 glob2_~p~0.offset) (= ~tmp~0.base glob2_~p~0.base))} is VALID [2020-07-10 20:22:26,972 INFO L280 TraceCheckUtils]: 22: Hoare triple {379#(and (<= 4 ~tmp~0.offset) (= 0 glob2_~p~0.offset) (= ~tmp~0.base glob2_~p~0.base))} SUMMARY for call write~int(1, ~p~0.base, ~p~0.offset, 4); srcloc: L20-1 {379#(and (<= 4 ~tmp~0.offset) (= 0 glob2_~p~0.offset) (= ~tmp~0.base glob2_~p~0.base))} is VALID [2020-07-10 20:22:26,973 INFO L280 TraceCheckUtils]: 23: Hoare triple {379#(and (<= 4 ~tmp~0.offset) (= 0 glob2_~p~0.offset) (= ~tmp~0.base glob2_~p~0.base))} #t~post0.base, #t~post0.offset := ~p~0.base, ~p~0.offset; {384#(and (<= 4 ~tmp~0.offset) (= |glob2_#t~post0.base| ~tmp~0.base) (= 0 |glob2_#t~post0.offset|))} is VALID [2020-07-10 20:22:26,974 INFO L280 TraceCheckUtils]: 24: Hoare triple {384#(and (<= 4 ~tmp~0.offset) (= |glob2_#t~post0.base| ~tmp~0.base) (= 0 |glob2_#t~post0.offset|))} ~p~0.base, ~p~0.offset := #t~post0.base, 4 + #t~post0.offset; {385#(and (<= glob2_~p~0.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base))} is VALID [2020-07-10 20:22:26,975 INFO L280 TraceCheckUtils]: 25: Hoare triple {385#(and (<= glob2_~p~0.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base))} havoc #t~post0.base, #t~post0.offset; {385#(and (<= glob2_~p~0.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base))} is VALID [2020-07-10 20:22:26,976 INFO L280 TraceCheckUtils]: 26: Hoare triple {385#(and (<= glob2_~p~0.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base))} assume !!(~p~0.base == ~pathlim.base && ~p~0.offset <= ~pathlim.offset); {385#(and (<= glob2_~p~0.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base))} is VALID [2020-07-10 20:22:26,977 INFO L263 TraceCheckUtils]: 27: Hoare triple {385#(and (<= glob2_~p~0.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base))} call __VERIFIER_assert((if ~p~0.base == ~tmp~0.base && ~p~0.offset <= ~tmp~0.offset then 1 else 0)); {386#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-10 20:22:26,978 INFO L280 TraceCheckUtils]: 28: Hoare triple {386#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {387#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:22:26,979 INFO L280 TraceCheckUtils]: 29: Hoare triple {387#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {368#false} is VALID [2020-07-10 20:22:26,979 INFO L280 TraceCheckUtils]: 30: Hoare triple {368#false} assume !false; {368#false} is VALID [2020-07-10 20:22:26,982 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 20:22:26,982 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:22:26,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1617419985] [2020-07-10 20:22:26,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:22:26,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-10 20:22:26,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762252894] [2020-07-10 20:22:26,985 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2020-07-10 20:22:26,985 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:22:26,985 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states. [2020-07-10 20:22:27,027 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:27,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-10 20:22:27,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:22:27,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-10 20:22:27,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-10 20:22:27,028 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 12 states. [2020-07-10 20:22:28,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:28,215 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2020-07-10 20:22:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-10 20:22:28,215 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2020-07-10 20:22:28,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:22:28,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-10 20:22:28,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 46 transitions. [2020-07-10 20:22:28,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-10 20:22:28,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 46 transitions. [2020-07-10 20:22:28,223 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 46 transitions. [2020-07-10 20:22:28,301 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:28,305 INFO L225 Difference]: With dead ends: 49 [2020-07-10 20:22:28,306 INFO L226 Difference]: Without dead ends: 47 [2020-07-10 20:22:28,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2020-07-10 20:22:28,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-07-10 20:22:28,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2020-07-10 20:22:28,481 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:22:28,481 INFO L82 GeneralOperation]: Start isEquivalent. First operand 47 states. Second operand 44 states. [2020-07-10 20:22:28,482 INFO L74 IsIncluded]: Start isIncluded. First operand 47 states. Second operand 44 states. [2020-07-10 20:22:28,482 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 44 states. [2020-07-10 20:22:28,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:28,489 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2020-07-10 20:22:28,489 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2020-07-10 20:22:28,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:22:28,490 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:22:28,491 INFO L74 IsIncluded]: Start isIncluded. First operand 44 states. Second operand 47 states. [2020-07-10 20:22:28,491 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 47 states. [2020-07-10 20:22:28,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:28,496 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2020-07-10 20:22:28,497 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2020-07-10 20:22:28,501 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:22:28,501 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:22:28,501 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:22:28,501 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:22:28,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-07-10 20:22:28,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2020-07-10 20:22:28,509 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 31 [2020-07-10 20:22:28,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:22:28,509 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2020-07-10 20:22:28,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-10 20:22:28,510 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 44 states and 44 transitions. [2020-07-10 20:22:28,609 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:28,610 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2020-07-10 20:22:28,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-07-10 20:22:28,611 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:22:28,612 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 20:22:28,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 20:22:28,612 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:22:28,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:22:28,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1122821221, now seen corresponding path program 2 times [2020-07-10 20:22:28,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:22:28,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249210447] [2020-07-10 20:22:28,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:22:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 20:22:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 20:22:28,746 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:22:28,746 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-10 20:22:28,746 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 20:22:28,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-10 20:22:28,763 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 20:22:28,764 WARN L170 areAnnotationChecker]: glob2ENTRY has no Hoare annotation [2020-07-10 20:22:28,764 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 20:22:28,764 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 20:22:28,764 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 20:22:28,764 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-10 20:22:28,764 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 20:22:28,764 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-10 20:22:28,765 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 20:22:28,765 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 20:22:28,765 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-10 20:22:28,765 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 20:22:28,765 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 20:22:28,765 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-10 20:22:28,766 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-10 20:22:28,766 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 20:22:28,766 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-10 20:22:28,766 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-10 20:22:28,766 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-10 20:22:28,766 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2020-07-10 20:22:28,767 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-10 20:22:28,767 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-10 20:22:28,767 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-10 20:22:28,767 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-10 20:22:28,767 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 20:22:28,767 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 20:22:28,768 WARN L170 areAnnotationChecker]: L18-5 has no Hoare annotation [2020-07-10 20:22:28,768 WARN L170 areAnnotationChecker]: L18-5 has no Hoare annotation [2020-07-10 20:22:28,768 WARN L170 areAnnotationChecker]: L18-5 has no Hoare annotation [2020-07-10 20:22:28,768 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation [2020-07-10 20:22:28,768 WARN L170 areAnnotationChecker]: L20-1 has no Hoare annotation [2020-07-10 20:22:28,768 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 20:22:28,769 WARN L170 areAnnotationChecker]: L18-6 has no Hoare annotation [2020-07-10 20:22:28,769 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-10 20:22:28,769 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-10 20:22:28,769 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2020-07-10 20:22:28,769 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-10 20:22:28,769 WARN L170 areAnnotationChecker]: glob2FINAL has no Hoare annotation [2020-07-10 20:22:28,770 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-10 20:22:28,770 WARN L170 areAnnotationChecker]: L18-3 has no Hoare annotation [2020-07-10 20:22:28,770 WARN L170 areAnnotationChecker]: glob2EXIT has no Hoare annotation [2020-07-10 20:22:28,770 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-10 20:22:28,770 WARN L170 areAnnotationChecker]: L18-4 has no Hoare annotation [2020-07-10 20:22:28,770 WARN L170 areAnnotationChecker]: L29-2 has no Hoare annotation [2020-07-10 20:22:28,770 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 20:22:28,771 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 20:22:28,771 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-10 20:22:28,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 08:22:28 BoogieIcfgContainer [2020-07-10 20:22:28,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 20:22:28,777 INFO L168 Benchmark]: Toolchain (without parser) took 5502.47 ms. Allocated memory was 143.7 MB in the beginning and 287.3 MB in the end (delta: 143.7 MB). Free memory was 101.2 MB in the beginning and 103.3 MB in the end (delta: -2.1 MB). Peak memory consumption was 141.6 MB. Max. memory is 7.1 GB. [2020-07-10 20:22:28,778 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 20:22:28,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.10 ms. Allocated memory is still 143.7 MB. Free memory was 101.0 MB in the beginning and 90.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-10 20:22:28,780 INFO L168 Benchmark]: Boogie Preprocessor took 145.72 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 90.4 MB in the beginning and 178.7 MB in the end (delta: -88.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-10 20:22:28,781 INFO L168 Benchmark]: RCFGBuilder took 403.42 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 157.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-07-10 20:22:28,782 INFO L168 Benchmark]: TraceAbstraction took 4665.82 ms. Allocated memory was 201.3 MB in the beginning and 287.3 MB in the end (delta: 86.0 MB). Free memory was 156.5 MB in the beginning and 103.3 MB in the end (delta: 53.3 MB). Peak memory consumption was 139.2 MB. Max. memory is 7.1 GB. [2020-07-10 20:22:28,786 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 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 280.10 ms. Allocated memory is still 143.7 MB. Free memory was 101.0 MB in the beginning and 90.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.72 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 90.4 MB in the beginning and 178.7 MB in the end (delta: -88.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 403.42 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 157.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4665.82 ms. Allocated memory was 201.3 MB in the beginning and 287.3 MB in the end (delta: 86.0 MB). Free memory was 156.5 MB in the beginning and 103.3 MB in the end (delta: 53.3 MB). Peak memory consumption was 139.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] Char *tmp; [L29] Char pathbuf[1 +1]; [L31] Char *bound = pathbuf + sizeof(pathbuf) - 1; [L33] tmp = pathbuf + sizeof(pathbuf)/sizeof(*pathbuf) - 1 [L35] CALL glob2 (pathbuf, bound) [L16] Char *p; [L18] p = pathbuf [L18] COND TRUE p <= pathlim [L20] CALL __VERIFIER_assert(p<=tmp) [L4] COND FALSE !(!(cond)) [L20] RET __VERIFIER_assert(p<=tmp) [L21] *p = 1 [L18] p++ [L18] COND TRUE p <= pathlim [L20] CALL __VERIFIER_assert(p<=tmp) [L4] COND FALSE !(!(cond)) [L20] RET __VERIFIER_assert(p<=tmp) [L21] *p = 1 [L18] p++ [L18] COND TRUE p <= pathlim [L20] CALL __VERIFIER_assert(p<=tmp) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.5s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 150 SDslu, 153 SDs, 0 SdLazy, 295 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...