/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 21:56:45,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 21:56:45,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 21:56:45,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 21:56:45,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 21:56:45,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 21:56:45,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 21:56:45,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 21:56:45,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 21:56:45,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 21:56:45,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 21:56:45,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 21:56:45,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 21:56:45,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 21:56:45,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 21:56:45,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 21:56:45,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 21:56:45,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 21:56:45,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 21:56:45,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 21:56:45,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 21:56:45,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 21:56:45,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 21:56:45,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 21:56:45,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 21:56:45,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 21:56:45,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 21:56:45,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 21:56:45,620 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 [2019-11-23 21:56:45,634 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 21:56:45,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 21:56:45,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 21:56:45,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 21:56:45,636 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 21:56:45,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 21:56:45,636 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 21:56:45,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 21:56:45,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 21:56:45,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 21:56:45,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 21:56:45,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 21:56:45,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 21:56:45,638 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 21:56:45,638 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 21:56:45,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 21:56:45,638 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 21:56:45,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 21:56:45,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 21:56:45,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 21:56:45,639 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 21:56:45,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 21:56:45,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 21:56:45,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 21:56:45,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 21:56:45,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 21:56:45,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 21:56:45,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 21:56:45,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 21:56:45,641 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 21:56:45,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 21:56:45,948 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 21:56:45,951 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 21:56:45,952 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 21:56:45,952 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 21:56:45,953 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test13.c [2019-11-23 21:56:46,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d2d83e47/6eb101d7bcd1480bb0522435bd0c3ec9/FLAGd90502629 [2019-11-23 21:56:46,416 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 21:56:46,417 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test13.c [2019-11-23 21:56:46,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d2d83e47/6eb101d7bcd1480bb0522435bd0c3ec9/FLAGd90502629 [2019-11-23 21:56:46,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d2d83e47/6eb101d7bcd1480bb0522435bd0c3ec9 [2019-11-23 21:56:46,849 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 21:56:46,851 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 21:56:46,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 21:56:46,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 21:56:46,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 21:56:46,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:56:46" (1/1) ... [2019-11-23 21:56:46,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@127afcab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:46, skipping insertion in model container [2019-11-23 21:56:46,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:56:46" (1/1) ... [2019-11-23 21:56:46,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 21:56:46,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 21:56:47,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 21:56:47,070 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 21:56:47,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 21:56:47,107 INFO L208 MainTranslator]: Completed translation [2019-11-23 21:56:47,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:47 WrapperNode [2019-11-23 21:56:47,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 21:56:47,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 21:56:47,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 21:56:47,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 21:56:47,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:47" (1/1) ... [2019-11-23 21:56:47,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:47" (1/1) ... [2019-11-23 21:56:47,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 21:56:47,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 21:56:47,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 21:56:47,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 21:56:47,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:47" (1/1) ... [2019-11-23 21:56:47,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:47" (1/1) ... [2019-11-23 21:56:47,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:47" (1/1) ... [2019-11-23 21:56:47,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:47" (1/1) ... [2019-11-23 21:56:47,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:47" (1/1) ... [2019-11-23 21:56:47,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:47" (1/1) ... [2019-11-23 21:56:47,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:47" (1/1) ... [2019-11-23 21:56:47,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 21:56:47,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 21:56:47,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 21:56:47,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 21:56:47,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:47" (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 [2019-11-23 21:56:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 21:56:47,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 21:56:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-23 21:56:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 21:56:47,476 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 21:56:47,476 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-23 21:56:47,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:56:47 BoogieIcfgContainer [2019-11-23 21:56:47,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 21:56:47,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 21:56:47,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 21:56:47,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 21:56:47,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:56:46" (1/3) ... [2019-11-23 21:56:47,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63781a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:56:47, skipping insertion in model container [2019-11-23 21:56:47,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:47" (2/3) ... [2019-11-23 21:56:47,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63781a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:56:47, skipping insertion in model container [2019-11-23 21:56:47,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:56:47" (3/3) ... [2019-11-23 21:56:47,485 INFO L109 eAbstractionObserver]: Analyzing ICFG test13.c [2019-11-23 21:56:47,495 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 21:56:47,502 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 21:56:47,515 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 21:56:47,540 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 21:56:47,541 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 21:56:47,541 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 21:56:47,541 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 21:56:47,541 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 21:56:47,541 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 21:56:47,541 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 21:56:47,542 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 21:56:47,555 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-23 21:56:47,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-23 21:56:47,560 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:56:47,561 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-23 21:56:47,561 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:56:47,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:56:47,566 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2019-11-23 21:56:47,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:56:47,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993766632] [2019-11-23 21:56:47,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:56:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:56:47,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 21:56:47,762 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993766632] [2019-11-23 21:56:47,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 21:56:47,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 21:56:47,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349459892] [2019-11-23 21:56:47,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 21:56:47,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:56:47,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 21:56:47,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 21:56:47,799 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-11-23 21:56:47,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:56:47,878 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-11-23 21:56:47,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 21:56:47,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-23 21:56:47,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:56:47,887 INFO L225 Difference]: With dead ends: 13 [2019-11-23 21:56:47,887 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 21:56:47,890 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 21:56:47,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 21:56:47,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 21:56:47,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 21:56:47,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 21:56:47,913 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-23 21:56:47,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:56:47,914 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 21:56:47,914 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 21:56:47,914 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 21:56:47,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 21:56:47,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 21:56:47,970 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 21:56:47,971 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-23 21:56:47,971 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 21:56:47,971 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 21:56:47,971 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-11-23 21:56:47,972 INFO L440 ceAbstractionStarter]: At program point L19(lines 17 20) the Hoare annotation is: (and (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= ULTIMATE.start_check_~a.base ULTIMATE.start_check_~b.base) (= ULTIMATE.start_check_~b.offset ULTIMATE.start_check_~a.offset)) [2019-11-23 21:56:47,972 INFO L440 ceAbstractionStarter]: At program point L11(lines 4 12) the Hoare annotation is: (and (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= ULTIMATE.start_check_~a.base ULTIMATE.start_check_~b.base) (= ULTIMATE.start_check_~b.offset ULTIMATE.start_check_~a.offset)) [2019-11-23 21:56:47,973 INFO L440 ceAbstractionStarter]: At program point L6(lines 4 12) the Hoare annotation is: false [2019-11-23 21:56:47,973 INFO L444 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-11-23 21:56:48,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:56:47 BoogieIcfgContainer [2019-11-23 21:56:48,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 21:56:48,004 INFO L168 Benchmark]: Toolchain (without parser) took 1150.91 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 101.5 MB in the beginning and 138.9 MB in the end (delta: -37.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-11-23 21:56:48,006 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-23 21:56:48,009 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.92 ms. Allocated memory is still 136.8 MB. Free memory was 101.3 MB in the beginning and 91.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-11-23 21:56:48,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.62 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 91.6 MB in the beginning and 178.9 MB in the end (delta: -87.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2019-11-23 21:56:48,012 INFO L168 Benchmark]: Boogie Preprocessor took 16.83 ms. Allocated memory is still 200.8 MB. Free memory was 178.9 MB in the beginning and 178.3 MB in the end (delta: 684.5 kB). Peak memory consumption was 684.5 kB. Max. memory is 7.1 GB. [2019-11-23 21:56:48,014 INFO L168 Benchmark]: RCFGBuilder took 225.08 ms. Allocated memory is still 200.8 MB. Free memory was 177.6 MB in the beginning and 165.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-11-23 21:56:48,015 INFO L168 Benchmark]: TraceAbstraction took 521.69 ms. Allocated memory is still 200.8 MB. Free memory was 165.0 MB in the beginning and 138.9 MB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2019-11-23 21:56:48,026 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 253.92 ms. Allocated memory is still 136.8 MB. Free memory was 101.3 MB in the beginning and 91.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 126.62 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 91.6 MB in the beginning and 178.9 MB in the end (delta: -87.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 16.83 ms. Allocated memory is still 200.8 MB. Free memory was 178.9 MB in the beginning and 178.3 MB in the end (delta: 684.5 kB). Peak memory consumption was 684.5 kB. Max. memory is 7.1 GB. * RCFGBuilder took 225.08 ms. Allocated memory is still 200.8 MB. Free memory was 177.6 MB in the beginning and 165.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 521.69 ms. Allocated memory is still 200.8 MB. Free memory was 165.0 MB in the beginning and 138.9 MB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 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: ((pa == a && pa == a) && a == b) && b == a - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((pa == a && pa == a) && a == b) && b == a - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 9 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 27 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 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...