/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/nested_structure_ptr-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:05:45,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:05:45,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:05:45,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:05:45,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:05:45,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:05:45,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:05:45,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:05:45,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:05:45,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:05:45,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:05:45,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:05:45,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:05:45,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:05:45,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:05:45,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:05:45,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:05:45,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:05:45,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:05:45,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:05:45,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:05:45,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:05:45,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:05:45,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:05:45,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:05:45,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:05:45,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:05:45,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:05:45,098 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 15:05:45,112 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:05:45,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:05:45,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:05:45,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:05:45,114 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:05:45,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:05:45,115 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:05:45,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:05:45,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:05:45,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:05:45,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:05:45,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:05:45,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:05:45,116 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:05:45,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:05:45,116 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:05:45,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:05:45,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:05:45,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:05:45,117 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:05:45,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:05:45,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:05:45,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:05:45,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:05:45,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:05:45,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:05:45,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:05:45,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:05:45,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:05:45,119 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:05:45,384 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:05:45,395 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:05:45,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:05:45,398 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:05:45,399 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:05:45,399 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure_ptr-1.i [2020-07-10 15:05:45,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13400ac4d/6eaa88f2c1e94fcf839b134b88351fd0/FLAGeee2e9efd [2020-07-10 15:05:45,923 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:05:45,924 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure_ptr-1.i [2020-07-10 15:05:45,930 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13400ac4d/6eaa88f2c1e94fcf839b134b88351fd0/FLAGeee2e9efd [2020-07-10 15:05:46,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13400ac4d/6eaa88f2c1e94fcf839b134b88351fd0 [2020-07-10 15:05:46,321 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:05:46,323 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:05:46,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:05:46,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:05:46,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:05:46,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:05:46" (1/1) ... [2020-07-10 15:05:46,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581710b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:46, skipping insertion in model container [2020-07-10 15:05:46,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:05:46" (1/1) ... [2020-07-10 15:05:46,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:05:46,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:05:46,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:05:46,537 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:05:46,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:05:46,574 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:05:46,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:46 WrapperNode [2020-07-10 15:05:46,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:05:46,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:05:46,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:05:46,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:05:46,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:46" (1/1) ... [2020-07-10 15:05:46,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:46" (1/1) ... [2020-07-10 15:05:46,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:46" (1/1) ... [2020-07-10 15:05:46,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:46" (1/1) ... [2020-07-10 15:05:46,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:46" (1/1) ... [2020-07-10 15:05:46,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:46" (1/1) ... [2020-07-10 15:05:46,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:46" (1/1) ... [2020-07-10 15:05:46,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:05:46,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:05:46,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:05:46,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:05:46,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:46" (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 15:05:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:05:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:05:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-10 15:05:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:05:46,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:05:46,767 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-10 15:05:46,767 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:05:46,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 15:05:46,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-10 15:05:46,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-10 15:05:46,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-10 15:05:46,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 15:05:46,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 15:05:46,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 15:05:46,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:05:46,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:05:46,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-10 15:05:47,032 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:05:47,032 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-10 15:05:47,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:05:47 BoogieIcfgContainer [2020-07-10 15:05:47,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:05:47,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:05:47,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:05:47,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:05:47,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:05:46" (1/3) ... [2020-07-10 15:05:47,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e366135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:05:47, skipping insertion in model container [2020-07-10 15:05:47,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:46" (2/3) ... [2020-07-10 15:05:47,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e366135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:05:47, skipping insertion in model container [2020-07-10 15:05:47,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:05:47" (3/3) ... [2020-07-10 15:05:47,045 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_structure_ptr-1.i [2020-07-10 15:05:47,056 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:05:47,063 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:05:47,078 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:05:47,132 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:05:47,133 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:05:47,133 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:05:47,133 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:05:47,133 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:05:47,133 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:05:47,134 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:05:47,134 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:05:47,176 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-07-10 15:05:47,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-10 15:05:47,188 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:05:47,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:05:47,190 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:05:47,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:05:47,201 INFO L82 PathProgramCache]: Analyzing trace with hash -642389624, now seen corresponding path program 1 times [2020-07-10 15:05:47,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:05:47,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457198220] [2020-07-10 15:05:47,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:05:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:05:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:05:47,657 INFO L280 TraceCheckUtils]: 0: Hoare triple {26#(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; {20#true} is VALID [2020-07-10 15:05:47,658 INFO L280 TraceCheckUtils]: 1: Hoare triple {20#true} assume true; {20#true} is VALID [2020-07-10 15:05:47,658 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {20#true} {20#true} #21#return; {20#true} is VALID [2020-07-10 15:05:47,662 INFO L263 TraceCheckUtils]: 0: Hoare triple {20#true} call ULTIMATE.init(); {26#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 15:05:47,662 INFO L280 TraceCheckUtils]: 1: Hoare triple {26#(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; {20#true} is VALID [2020-07-10 15:05:47,663 INFO L280 TraceCheckUtils]: 2: Hoare triple {20#true} assume true; {20#true} is VALID [2020-07-10 15:05:47,663 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20#true} {20#true} #21#return; {20#true} is VALID [2020-07-10 15:05:47,664 INFO L263 TraceCheckUtils]: 4: Hoare triple {20#true} call #t~ret5 := main(); {20#true} is VALID [2020-07-10 15:05:47,670 INFO L280 TraceCheckUtils]: 5: Hoare triple {20#true} call ~#im~0.base, ~#im~0.offset := #Ultimate.allocOnStack(4);call write~init~int(3, ~#im~0.base, ~#im~0.offset, 4);call ~#inner~0.base, ~#inner~0.offset := #Ultimate.allocOnStack(8);call write~init~int(2, ~#inner~0.base, ~#inner~0.offset, 4);call write~init~$Pointer$(~#im~0.base, ~#im~0.offset, ~#inner~0.base, 4 + ~#inner~0.offset, 4);call ~#good~0.base, ~#good~0.offset := #Ultimate.allocOnStack(8);call write~init~int(1, ~#good~0.base, ~#good~0.offset, 4);call write~init~$Pointer$(~#inner~0.base, ~#inner~0.offset, ~#good~0.base, 4 + ~#good~0.offset, 4);~ptr~0.base, ~ptr~0.offset := ~#good~0.base, ~#good~0.offset;call #t~mem0.base, #t~mem0.offset := read~$Pointer$(~ptr~0.base, 4 + ~ptr~0.offset, 4);call #t~mem1.base, #t~mem1.offset := read~$Pointer$(#t~mem0.base, 4 + #t~mem0.offset, 4);call write~int(4, #t~mem1.base, #t~mem1.offset, 4);havoc #t~mem1.base, #t~mem1.offset;havoc #t~mem0.base, #t~mem0.offset;call #t~mem2.base, #t~mem2.offset := read~$Pointer$(~ptr~0.base, 4 + ~ptr~0.offset, 4);call #t~mem3.base, #t~mem3.offset := read~$Pointer$(#t~mem2.base, 4 + #t~mem2.offset, 4);call #t~mem4 := read~int(#t~mem3.base, #t~mem3.offset, 4); {25#(= 4 |main_#t~mem4|)} is VALID [2020-07-10 15:05:47,672 INFO L280 TraceCheckUtils]: 6: Hoare triple {25#(= 4 |main_#t~mem4|)} assume !(4 == #t~mem4); {21#false} is VALID [2020-07-10 15:05:47,672 INFO L263 TraceCheckUtils]: 7: Hoare triple {21#false} call __blast_assert(); {21#false} is VALID [2020-07-10 15:05:47,673 INFO L280 TraceCheckUtils]: 8: Hoare triple {21#false} assume !false; {21#false} is VALID [2020-07-10 15:05:47,674 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 15:05:47,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457198220] [2020-07-10 15:05:47,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:05:47,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 15:05:47,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067540707] [2020-07-10 15:05:47,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-10 15:05:47,687 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:05:47,691 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 15:05:47,720 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:05:47,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 15:05:47,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:05:47,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 15:05:47,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 15:05:47,734 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2020-07-10 15:05:47,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:05:47,841 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-07-10 15:05:47,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 15:05:47,842 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-10 15:05:47,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:05:47,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 15:05:47,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-07-10 15:05:47,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 15:05:47,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-07-10 15:05:47,861 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 21 transitions. [2020-07-10 15:05:47,905 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 15:05:47,912 INFO L225 Difference]: With dead ends: 22 [2020-07-10 15:05:47,913 INFO L226 Difference]: Without dead ends: 0 [2020-07-10 15:05:47,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 15:05:47,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-10 15:05:47,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-10 15:05:47,941 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:05:47,941 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-10 15:05:47,942 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 15:05:47,942 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 15:05:47,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:05:47,943 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 15:05:47,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:05:47,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:05:47,944 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:05:47,944 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 15:05:47,944 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 15:05:47,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:05:47,944 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 15:05:47,945 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:05:47,945 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:05:47,945 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:05:47,945 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:05:47,946 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:05:47,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-10 15:05:47,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-10 15:05:47,948 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-07-10 15:05:47,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:05:47,948 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-10 15:05:47,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 15:05:47,948 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:05:47,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:05:47,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:05:47,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-10 15:05:48,003 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-10 15:05:48,003 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-10 15:05:48,004 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-10 15:05:48,004 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2020-07-10 15:05:48,004 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 8 11) no Hoare annotation was computed. [2020-07-10 15:05:48,004 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 8 11) no Hoare annotation was computed. [2020-07-10 15:05:48,005 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 8 11) the Hoare annotation is: true [2020-07-10 15:05:48,005 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-10 15:05:48,005 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-10 15:05:48,005 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-10 15:05:48,005 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-10 15:05:48,005 INFO L268 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-07-10 15:05:48,006 INFO L264 CegarLoopResult]: At program point L32-2(line 32) the Hoare annotation is: false [2020-07-10 15:05:48,006 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 25 34) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-10 15:05:48,006 INFO L268 CegarLoopResult]: For program point L32-3(line 32) no Hoare annotation was computed. [2020-07-10 15:05:48,006 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 25 34) no Hoare annotation was computed. [2020-07-10 15:05:48,006 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 25 34) no Hoare annotation was computed. [2020-07-10 15:05:48,011 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:05:48,013 WARN L170 areAnnotationChecker]: __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2020-07-10 15:05:48,013 WARN L170 areAnnotationChecker]: __blast_assertFINAL has no Hoare annotation [2020-07-10 15:05:48,013 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-10 15:05:48,014 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:05:48,014 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:05:48,015 WARN L170 areAnnotationChecker]: __blast_assertFINAL has no Hoare annotation [2020-07-10 15:05:48,015 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-10 15:05:48,015 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-10 15:05:48,015 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:05:48,016 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:05:48,016 WARN L170 areAnnotationChecker]: __blast_assertEXIT has no Hoare annotation [2020-07-10 15:05:48,016 WARN L170 areAnnotationChecker]: L32-3 has no Hoare annotation [2020-07-10 15:05:48,016 WARN L170 areAnnotationChecker]: L32-3 has no Hoare annotation [2020-07-10 15:05:48,016 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:05:48,016 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:05:48,017 INFO L163 areAnnotationChecker]: CFG has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-10 15:05:48,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:05:48 BoogieIcfgContainer [2020-07-10 15:05:48,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:05:48,023 INFO L168 Benchmark]: Toolchain (without parser) took 1699.75 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 102.3 MB in the beginning and 105.1 MB in the end (delta: -2.8 MB). Peak memory consumption was 61.7 MB. Max. memory is 7.1 GB. [2020-07-10 15:05:48,024 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 15:05:48,025 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.02 ms. Allocated memory is still 137.9 MB. Free memory was 102.1 MB in the beginning and 91.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-10 15:05:48,026 INFO L168 Benchmark]: Boogie Preprocessor took 130.07 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 91.6 MB in the beginning and 179.8 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-10 15:05:48,027 INFO L168 Benchmark]: RCFGBuilder took 330.85 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 161.1 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2020-07-10 15:05:48,028 INFO L168 Benchmark]: TraceAbstraction took 982.28 ms. Allocated memory is still 202.4 MB. Free memory was 160.4 MB in the beginning and 105.1 MB in the end (delta: 55.3 MB). Peak memory consumption was 55.3 MB. Max. memory is 7.1 GB. [2020-07-10 15:05:48,032 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 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 251.02 ms. Allocated memory is still 137.9 MB. Free memory was 102.1 MB in the beginning and 91.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.07 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 91.6 MB in the beginning and 179.8 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 330.85 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 161.1 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 982.28 ms. Allocated memory is still 202.4 MB. Free memory was 160.4 MB in the beginning and 105.1 MB in the end (delta: 55.3 MB). Peak memory consumption was 55.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 1 SDslu, 11 SDs, 0 SdLazy, 10 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 17 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 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...