java -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-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:09:24,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:09:24,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:09:24,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:09:24,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:09:24,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:09:24,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:09:24,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:09:24,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:09:24,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:09:24,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:09:24,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:09:24,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:09:24,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:09:24,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:09:24,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:09:24,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:09:24,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:09:24,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:09:24,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:09:24,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:09:24,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:09:24,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:09:24,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:09:24,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:09:24,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:09:24,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:09:24,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:09:24,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:09:24,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:09:24,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:09:24,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:09:24,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:09:24,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:09:24,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:09:24,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:09:24,203 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 [2019-10-13 19:09:24,235 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:09:24,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:09:24,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:09:24,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:09:24,238 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:09:24,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:09:24,239 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:09:24,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:09:24,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:09:24,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:09:24,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:09:24,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:09:24,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:09:24,241 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:09:24,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:09:24,242 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:09:24,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:09:24,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:09:24,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:09:24,243 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:09:24,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:09:24,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:09:24,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:09:24,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:09:24,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:09:24,244 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:09:24,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:09:24,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:09:24,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:09:24,545 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:09:24,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:09:24,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:09:24,572 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:09:24,572 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:09:24,573 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure_ptr-2.i [2019-10-13 19:09:24,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8a934e2/9c1bbfb62795418eba62fd7723682259/FLAG42faf64b7 [2019-10-13 19:09:25,070 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:09:25,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure_ptr-2.i [2019-10-13 19:09:25,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8a934e2/9c1bbfb62795418eba62fd7723682259/FLAG42faf64b7 [2019-10-13 19:09:25,484 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8a934e2/9c1bbfb62795418eba62fd7723682259 [2019-10-13 19:09:25,495 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:09:25,497 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:09:25,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:09:25,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:09:25,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:09:25,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:09:25" (1/1) ... [2019-10-13 19:09:25,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e7ef353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:25, skipping insertion in model container [2019-10-13 19:09:25,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:09:25" (1/1) ... [2019-10-13 19:09:25,517 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:09:25,534 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:09:25,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:09:25,734 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:09:25,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:09:25,769 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:09:25,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:25 WrapperNode [2019-10-13 19:09:25,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:09:25,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:09:25,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:09:25,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:09:25,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:25" (1/1) ... [2019-10-13 19:09:25,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:25" (1/1) ... [2019-10-13 19:09:25,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:25" (1/1) ... [2019-10-13 19:09:25,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:25" (1/1) ... [2019-10-13 19:09:25,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:25" (1/1) ... [2019-10-13 19:09:25,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:25" (1/1) ... [2019-10-13 19:09:25,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:25" (1/1) ... [2019-10-13 19:09:25,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:09:25,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:09:25,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:09:25,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:09:25,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:09:25,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:09:25,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:09:25,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:09:25,959 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:09:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:09:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:09:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:09:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2019-10-13 19:09:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2019-10-13 19:09:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:09:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:09:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:09:25,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 19:09:25,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:09:25,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:09:25,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:09:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:09:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:09:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:09:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:09:26,245 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:09:26,245 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 19:09:26,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:09:26 BoogieIcfgContainer [2019-10-13 19:09:26,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:09:26,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:09:26,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:09:26,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:09:26,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:09:25" (1/3) ... [2019-10-13 19:09:26,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ba5e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:09:26, skipping insertion in model container [2019-10-13 19:09:26,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:25" (2/3) ... [2019-10-13 19:09:26,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ba5e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:09:26, skipping insertion in model container [2019-10-13 19:09:26,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:09:26" (3/3) ... [2019-10-13 19:09:26,255 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_structure_ptr-2.i [2019-10-13 19:09:26,264 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:09:26,272 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:09:26,283 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:09:26,305 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:09:26,305 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:09:26,305 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:09:26,305 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:09:26,306 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:09:26,306 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:09:26,306 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:09:26,306 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:09:26,321 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-10-13 19:09:26,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-13 19:09:26,326 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:09:26,327 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:09:26,329 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:09:26,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:09:26,334 INFO L82 PathProgramCache]: Analyzing trace with hash -715594688, now seen corresponding path program 1 times [2019-10-13 19:09:26,341 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:09:26,341 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586632170] [2019-10-13 19:09:26,341 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:09:26,342 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:09:26,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:09:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:09:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:09:26,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:09:26,710 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586632170] [2019-10-13 19:09:26,711 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:09:26,712 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 19:09:26,712 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057271096] [2019-10-13 19:09:26,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 19:09:26,718 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:09:26,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 19:09:26,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:09:26,732 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2019-10-13 19:09:26,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:09:26,863 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2019-10-13 19:09:26,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 19:09:26,865 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-10-13 19:09:26,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:09:26,871 INFO L225 Difference]: With dead ends: 25 [2019-10-13 19:09:26,871 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:09:26,874 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:09:26,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:09:26,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:09:26,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:09:26,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:09:26,896 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-13 19:09:26,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:09:26,896 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:09:26,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 19:09:26,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:09:26,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:09:26,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:09:26,977 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:09:26,978 INFO L439 ceAbstractionStarter]: 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)|)) [2019-10-13 19:09:26,978 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:09:26,978 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:09:26,978 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:09:26,979 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:09:26,979 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:09:26,979 INFO L443 ceAbstractionStarter]: For program point L34-1(line 34) no Hoare annotation was computed. [2019-10-13 19:09:26,980 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 27 36) the Hoare annotation is: (= |#valid| |old(#valid)|) [2019-10-13 19:09:26,980 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 27 36) no Hoare annotation was computed. [2019-10-13 19:09:26,981 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 27 36) no Hoare annotation was computed. [2019-10-13 19:09:26,981 INFO L439 ceAbstractionStarter]: At program point L34(line 34) the Hoare annotation is: (= 4 |main_#t~mem4|) [2019-10-13 19:09:26,981 INFO L443 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2019-10-13 19:09:26,981 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2019-10-13 19:09:26,982 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-10-13 19:09:26,982 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2019-10-13 19:09:26,982 INFO L443 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-10-13 19:09:26,982 INFO L443 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2019-10-13 19:09:26,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:09:26 BoogieIcfgContainer [2019-10-13 19:09:26,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:09:26,996 INFO L168 Benchmark]: Toolchain (without parser) took 1496.27 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 103.8 MB in the beginning and 124.6 MB in the end (delta: -20.8 MB). Peak memory consumption was 42.6 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:26,998 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 19:09:27,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.22 ms. Allocated memory is still 138.9 MB. Free memory was 103.6 MB in the beginning and 93.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:27,003 INFO L168 Benchmark]: Boogie Preprocessor took 124.39 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 93.5 MB in the beginning and 180.0 MB in the end (delta: -86.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:27,004 INFO L168 Benchmark]: RCFGBuilder took 347.78 ms. Allocated memory is still 202.4 MB. Free memory was 180.0 MB in the beginning and 164.8 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:27,006 INFO L168 Benchmark]: TraceAbstraction took 743.26 ms. Allocated memory is still 202.4 MB. Free memory was 164.1 MB in the beginning and 124.6 MB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:27,017 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 269.22 ms. Allocated memory is still 138.9 MB. Free memory was 103.6 MB in the beginning and 93.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.39 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 93.5 MB in the beginning and 180.0 MB in the end (delta: -86.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 347.78 ms. Allocated memory is still 202.4 MB. Free memory was 180.0 MB in the beginning and 164.8 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 743.26 ms. Allocated memory is still 202.4 MB. Free memory was 164.1 MB in the beginning and 124.6 MB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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, 18 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 8 SDslu, 29 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 19 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 234 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...