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/test17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:09:37,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:09:37,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:09:37,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:09:37,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:09:37,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:09:37,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:09:37,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:09:37,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:09:37,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:09:37,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:09:37,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:09:37,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:09:37,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:09:37,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:09:37,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:09:37,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:09:37,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:09:37,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:09:37,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:09:37,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:09:37,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:09:37,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:09:37,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:09:37,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:09:37,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:09:37,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:09:37,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:09:37,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:09:37,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:09:37,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:09:37,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:09:37,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:09:37,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:09:37,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:09:37,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:09:37,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:09:37,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:09:37,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:09:37,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:09:37,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:09:37,592 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 19:09:37,607 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:09:37,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:09:37,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:09:37,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:09:37,609 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:09:37,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:09:37,609 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:09:37,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:09:37,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:09:37,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:09:37,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:09:37,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:09:37,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:09:37,610 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:09:37,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:09:37,611 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:09:37,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:09:37,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:09:37,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:09:37,611 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:09:37,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:09:37,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:09:37,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:09:37,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:09:37,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:09:37,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:09:37,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:09:37,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:09:37,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:09:37,894 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:09:37,915 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:09:37,918 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:09:37,920 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:09:37,921 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:09:37,921 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test17.c [2019-10-13 19:09:38,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6762d5832/b782cca236774aacb1c600382f79f720/FLAG66d1afce8 [2019-10-13 19:09:38,456 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:09:38,457 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test17.c [2019-10-13 19:09:38,463 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6762d5832/b782cca236774aacb1c600382f79f720/FLAG66d1afce8 [2019-10-13 19:09:38,812 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6762d5832/b782cca236774aacb1c600382f79f720 [2019-10-13 19:09:38,821 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:09:38,822 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:09:38,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:09:38,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:09:38,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:09:38,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:09:38" (1/1) ... [2019-10-13 19:09:38,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da87ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:38, skipping insertion in model container [2019-10-13 19:09:38,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:09:38" (1/1) ... [2019-10-13 19:09:38,842 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:09:38,858 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:09:39,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:09:39,019 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:09:39,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:09:39,058 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:09:39,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:39 WrapperNode [2019-10-13 19:09:39,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:09:39,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:09:39,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:09:39,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:09:39,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:39" (1/1) ... [2019-10-13 19:09:39,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:39" (1/1) ... [2019-10-13 19:09:39,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:39" (1/1) ... [2019-10-13 19:09:39,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:39" (1/1) ... [2019-10-13 19:09:39,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:39" (1/1) ... [2019-10-13 19:09:39,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:39" (1/1) ... [2019-10-13 19:09:39,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:39" (1/1) ... [2019-10-13 19:09:39,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:09:39,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:09:39,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:09:39,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:09:39,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:39" (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 19:09:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:09:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:09:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure equal [2019-10-13 19:09:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:09:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:09:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure equal [2019-10-13 19:09:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:09:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:09:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:09:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:09:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:09:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:09:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:09:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:09:39,437 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:09:39,437 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 19:09:39,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:09:39 BoogieIcfgContainer [2019-10-13 19:09:39,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:09:39,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:09:39,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:09:39,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:09:39,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:09:38" (1/3) ... [2019-10-13 19:09:39,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5215d51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:09:39, skipping insertion in model container [2019-10-13 19:09:39,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:39" (2/3) ... [2019-10-13 19:09:39,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5215d51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:09:39, skipping insertion in model container [2019-10-13 19:09:39,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:09:39" (3/3) ... [2019-10-13 19:09:39,447 INFO L109 eAbstractionObserver]: Analyzing ICFG test17.c [2019-10-13 19:09:39,460 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:09:39,469 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:09:39,484 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:09:39,524 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:09:39,524 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:09:39,525 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:09:39,525 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:09:39,525 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:09:39,525 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:09:39,525 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:09:39,525 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:09:39,545 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-13 19:09:39,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-13 19:09:39,553 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:09:39,554 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:09:39,557 INFO L410 AbstractCegarLoop]: === Iteration 1 === [equalErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:09:39,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:09:39,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1534444928, now seen corresponding path program 1 times [2019-10-13 19:09:39,572 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:09:39,573 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299170533] [2019-10-13 19:09:39,573 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:09:39,573 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:09:39,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:09:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:09:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:09:39,836 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 19:09:39,837 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299170533] [2019-10-13 19:09:39,838 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:09:39,838 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:09:39,838 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250777647] [2019-10-13 19:09:39,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:09:39,844 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:09:39,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:09:39,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:09:39,859 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2019-10-13 19:09:40,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:09:40,026 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-10-13 19:09:40,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:09:40,029 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-10-13 19:09:40,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:09:40,037 INFO L225 Difference]: With dead ends: 24 [2019-10-13 19:09:40,037 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:09:40,041 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:09:40,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:09:40,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:09:40,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:09:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:09:40,067 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-10-13 19:09:40,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:09:40,067 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:09:40,067 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:09:40,068 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:09:40,068 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:09:40,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:09:40,173 INFO L443 ceAbstractionStarter]: For program point equalEXIT(lines 4 12) no Hoare annotation was computed. [2019-10-13 19:09:40,174 INFO L446 ceAbstractionStarter]: At program point equalENTRY(lines 4 12) the Hoare annotation is: true [2019-10-13 19:09:40,174 INFO L443 ceAbstractionStarter]: For program point equalFINAL(lines 4 12) no Hoare annotation was computed. [2019-10-13 19:09:40,175 INFO L443 ceAbstractionStarter]: For program point equalErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-10-13 19:09:40,175 INFO L439 ceAbstractionStarter]: At program point L6(lines 4 12) the Hoare annotation is: (or (not (= |equal_#in~a.base| |equal_#in~b.base|)) (not (= |equal_#in~a.offset| |equal_#in~b.offset|))) [2019-10-13 19:09:40,175 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-10-13 19:09:40,175 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:09:40,176 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#a~0.base| |old(~#a~0.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= ~b~0 |old(~b~0)|) (= |old(#length)| |#length|)) [2019-10-13 19:09:40,176 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:09:40,176 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:09:40,176 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:09:40,177 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:09:40,177 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:09:40,177 INFO L443 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-10-13 19:09:40,177 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 16 19) the Hoare annotation is: true [2019-10-13 19:09:40,177 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 16 19) no Hoare annotation was computed. [2019-10-13 19:09:40,178 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 16 19) no Hoare annotation was computed. [2019-10-13 19:09:40,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:09:40 BoogieIcfgContainer [2019-10-13 19:09:40,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:09:40,200 INFO L168 Benchmark]: Toolchain (without parser) took 1376.38 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.9 MB in the beginning and 126.0 MB in the end (delta: -23.1 MB). Peak memory consumption was 40.9 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:40,201 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 19:09:40,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.43 ms. Allocated memory is still 138.9 MB. Free memory was 102.5 MB in the beginning and 93.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:40,204 INFO L168 Benchmark]: Boogie Preprocessor took 112.96 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 93.2 MB in the beginning and 181.6 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:40,205 INFO L168 Benchmark]: RCFGBuilder took 266.63 ms. Allocated memory is still 202.9 MB. Free memory was 181.6 MB in the beginning and 169.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:40,206 INFO L168 Benchmark]: TraceAbstraction took 756.97 ms. Allocated memory is still 202.9 MB. Free memory was 169.0 MB in the beginning and 126.0 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:40,210 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 235.43 ms. Allocated memory is still 138.9 MB. Free memory was 102.5 MB in the beginning and 93.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.96 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 93.2 MB in the beginning and 181.6 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 266.63 ms. Allocated memory is still 202.9 MB. Free memory was 181.6 MB in the beginning and 169.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 756.97 ms. Allocated memory is still 202.9 MB. Free memory was 169.0 MB in the beginning and 126.0 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 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 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: !(a == b) || !(a == b) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 10 SDtfs, 10 SDslu, 16 SDs, 0 SdLazy, 14 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 35 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 57 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 328 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...