/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/fo_test.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 21:56:27,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 21:56:27,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 21:56:27,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 21:56:27,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 21:56:27,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 21:56:27,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 21:56:27,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 21:56:27,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 21:56:27,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 21:56:27,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 21:56:27,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 21:56:27,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 21:56:27,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 21:56:27,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 21:56:27,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 21:56:27,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 21:56:27,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 21:56:27,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 21:56:27,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 21:56:27,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 21:56:27,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 21:56:27,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 21:56:27,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 21:56:27,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 21:56:27,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 21:56:27,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 21:56:27,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 21:56:27,752 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 21:56:27,769 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 21:56:27,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 21:56:27,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 21:56:27,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 21:56:27,771 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 21:56:27,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 21:56:27,771 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 21:56:27,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 21:56:27,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 21:56:27,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 21:56:27,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 21:56:27,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 21:56:27,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 21:56:27,773 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 21:56:27,773 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 21:56:27,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 21:56:27,773 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 21:56:27,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 21:56:27,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 21:56:27,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 21:56:27,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 21:56:27,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 21:56:27,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 21:56:27,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 21:56:27,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 21:56:27,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 21:56:27,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 21:56:27,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 21:56:27,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 21:56:27,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 21:56:28,057 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 21:56:28,077 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 21:56:28,081 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 21:56:28,082 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 21:56:28,083 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 21:56:28,084 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/fo_test.i [2019-11-23 21:56:28,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d138e301b/2416979cc39c4b589fe1c35d86745f9e/FLAGf0265ddf9 [2019-11-23 21:56:28,724 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 21:56:28,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/fo_test.i [2019-11-23 21:56:28,738 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d138e301b/2416979cc39c4b589fe1c35d86745f9e/FLAGf0265ddf9 [2019-11-23 21:56:29,014 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d138e301b/2416979cc39c4b589fe1c35d86745f9e [2019-11-23 21:56:29,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 21:56:29,027 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 21:56:29,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 21:56:29,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 21:56:29,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 21:56:29,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:56:29" (1/1) ... [2019-11-23 21:56:29,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436d1e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:29, skipping insertion in model container [2019-11-23 21:56:29,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:56:29" (1/1) ... [2019-11-23 21:56:29,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 21:56:29,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 21:56:29,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 21:56:29,572 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 21:56:29,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 21:56:29,707 INFO L208 MainTranslator]: Completed translation [2019-11-23 21:56:29,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:29 WrapperNode [2019-11-23 21:56:29,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 21:56:29,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 21:56:29,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 21:56:29,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 21:56:29,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:29" (1/1) ... [2019-11-23 21:56:29,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:29" (1/1) ... [2019-11-23 21:56:29,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 21:56:29,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 21:56:29,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 21:56:29,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 21:56:29,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:29" (1/1) ... [2019-11-23 21:56:29,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:29" (1/1) ... [2019-11-23 21:56:29,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:29" (1/1) ... [2019-11-23 21:56:29,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:29" (1/1) ... [2019-11-23 21:56:29,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:29" (1/1) ... [2019-11-23 21:56:29,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:29" (1/1) ... [2019-11-23 21:56:29,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:29" (1/1) ... [2019-11-23 21:56:29,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 21:56:29,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 21:56:29,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 21:56:29,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 21:56:29,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:29" (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 21:56:29,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-23 21:56:29,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 21:56:29,887 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-11-23 21:56:29,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 21:56:29,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 21:56:30,132 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 21:56:30,133 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-23 21:56:30,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:56:30 BoogieIcfgContainer [2019-11-23 21:56:30,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 21:56:30,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 21:56:30,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 21:56:30,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 21:56:30,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:56:29" (1/3) ... [2019-11-23 21:56:30,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5b90cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:56:30, skipping insertion in model container [2019-11-23 21:56:30,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:29" (2/3) ... [2019-11-23 21:56:30,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5b90cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:56:30, skipping insertion in model container [2019-11-23 21:56:30,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:56:30" (3/3) ... [2019-11-23 21:56:30,142 INFO L109 eAbstractionObserver]: Analyzing ICFG fo_test.i [2019-11-23 21:56:30,152 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 21:56:30,159 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 21:56:30,170 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 21:56:30,208 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 21:56:30,208 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 21:56:30,208 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 21:56:30,209 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 21:56:30,209 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 21:56:30,209 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 21:56:30,209 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 21:56:30,209 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 21:56:30,221 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-23 21:56:30,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-23 21:56:30,226 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:56:30,227 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:56:30,228 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:56:30,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:56:30,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965446, now seen corresponding path program 1 times [2019-11-23 21:56:30,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:56:30,242 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723562855] [2019-11-23 21:56:30,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:56:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:56:30,416 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 21:56:30,417 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723562855] [2019-11-23 21:56:30,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 21:56:30,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 21:56:30,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341258371] [2019-11-23 21:56:30,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 21:56:30,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:56:30,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 21:56:30,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 21:56:30,436 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2019-11-23 21:56:30,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:56:30,469 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-11-23 21:56:30,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 21:56:30,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-23 21:56:30,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:56:30,481 INFO L225 Difference]: With dead ends: 23 [2019-11-23 21:56:30,482 INFO L226 Difference]: Without dead ends: 8 [2019-11-23 21:56:30,485 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 21:56:30,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-23 21:56:30,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-23 21:56:30,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-23 21:56:30,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2019-11-23 21:56:30,529 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2019-11-23 21:56:30,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:56:30,530 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2019-11-23 21:56:30,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 21:56:30,530 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2019-11-23 21:56:30,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-23 21:56:30,530 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:56:30,531 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:56:30,531 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:56:30,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:56:30,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812488, now seen corresponding path program 1 times [2019-11-23 21:56:30,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:56:30,532 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300912895] [2019-11-23 21:56:30,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:56:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-23 21:56:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-23 21:56:30,626 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-23 21:56:30,626 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-23 21:56:30,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:56:30 BoogieIcfgContainer [2019-11-23 21:56:30,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 21:56:30,664 INFO L168 Benchmark]: Toolchain (without parser) took 1636.14 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.6 MB in the beginning and 122.6 MB in the end (delta: -21.0 MB). Peak memory consumption was 43.5 MB. Max. memory is 7.1 GB. [2019-11-23 21:56:30,665 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-11-23 21:56:30,666 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.71 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.4 MB in the beginning and 166.0 MB in the end (delta: -64.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2019-11-23 21:56:30,667 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.29 ms. Allocated memory is still 202.9 MB. Free memory was 166.0 MB in the beginning and 164.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-11-23 21:56:30,668 INFO L168 Benchmark]: Boogie Preprocessor took 41.11 ms. Allocated memory is still 202.9 MB. Free memory was 164.0 MB in the beginning and 162.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-11-23 21:56:30,669 INFO L168 Benchmark]: RCFGBuilder took 312.38 ms. Allocated memory is still 202.9 MB. Free memory was 162.6 MB in the beginning and 148.2 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2019-11-23 21:56:30,670 INFO L168 Benchmark]: TraceAbstraction took 525.56 ms. Allocated memory is still 202.9 MB. Free memory was 147.6 MB in the beginning and 122.6 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2019-11-23 21:56:30,674 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 679.71 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.4 MB in the beginning and 166.0 MB in the end (delta: -64.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 72.29 ms. Allocated memory is still 202.9 MB. Free memory was 166.0 MB in the beginning and 164.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.11 ms. Allocated memory is still 202.9 MB. Free memory was 164.0 MB in the beginning and 162.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 312.38 ms. Allocated memory is still 202.9 MB. Free memory was 162.6 MB in the beginning and 148.2 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 525.56 ms. Allocated memory is still 202.9 MB. Free memory was 147.6 MB in the beginning and 122.6 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 960]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 1158. Possible FailurePath: [L1152] int globalState = 0; VAL [globalState=0] [L1170] int fd = open(file,flags); VAL [globalState=0] [L1171] COND FALSE !(fd>0) VAL [globalState=0] [L1172] return fd; VAL [globalState=0] [L1158] int file = l_open("unknown",00); [L1159] void* cbuf = (void*) malloc(sizeof(char)*100); [L1165] (globalState == 1) ? (0) : __blast_assert () VAL [globalState=0] [L960] __VERIFIER_error() VAL [globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 5 SDslu, 5 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...