/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/locks/test_locks_14-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:06:41,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:06:41,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:06:41,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:06:41,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:06:41,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:06:41,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:06:41,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:06:41,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:06:41,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:06:41,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:06:41,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-11-23 22:06:41,912 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 22:06:41,936 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:06:41,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:06:41,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:06:41,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:06:41,939 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:06:41,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:06:41,940 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:06:41,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:06:41,940 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:06:41,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:06:41,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:06:41,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:06:41,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:06:41,942 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:06:41,942 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:06:41,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:06:41,943 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:06:41,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:06:41,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:06:41,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:06:41,944 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:06:41,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:06:41,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:06:41,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:06:41,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:06:41,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:06:41,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:06:41,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:06:41,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:06:41,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:06:42,241 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:06:42,258 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:06:42,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:06:42,264 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:06:42,264 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:06:42,265 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_14-2.c [2019-11-23 22:06:42,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4914e22d/83d7c87866c84590ac3ecac22266c4ff/FLAGd7e96c7dc [2019-11-23 22:06:42,802 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:06:42,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_14-2.c [2019-11-23 22:06:42,810 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4914e22d/83d7c87866c84590ac3ecac22266c4ff/FLAGd7e96c7dc [2019-11-23 22:06:43,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4914e22d/83d7c87866c84590ac3ecac22266c4ff [2019-11-23 22:06:43,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:06:43,167 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:06:43,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:06:43,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:06:43,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:06:43,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:06:43" (1/1) ... [2019-11-23 22:06:43,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@517c1755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:06:43, skipping insertion in model container [2019-11-23 22:06:43,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:06:43" (1/1) ... [2019-11-23 22:06:43,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:06:43,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:06:43,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:06:43,478 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:06:43,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:06:43,648 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:06:43,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:06:43 WrapperNode [2019-11-23 22:06:43,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:06:43,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:06:43,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:06:43,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:06:43,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:06:43" (1/1) ... [2019-11-23 22:06:43,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:06:43" (1/1) ... [2019-11-23 22:06:43,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:06:43,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:06:43,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:06:43,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:06:43,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:06:43" (1/1) ... [2019-11-23 22:06:43,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:06:43" (1/1) ... [2019-11-23 22:06:43,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:06:43" (1/1) ... [2019-11-23 22:06:43,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:06:43" (1/1) ... [2019-11-23 22:06:43,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:06:43" (1/1) ... [2019-11-23 22:06:43,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:06:43" (1/1) ... [2019-11-23 22:06:43,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:06:43" (1/1) ... [2019-11-23 22:06:43,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:06:43,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:06:43,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:06:43,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:06:43,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:06:43" (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 22:06:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:06:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:06:44,297 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:06:44,298 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-23 22:06:44,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:06:44 BoogieIcfgContainer [2019-11-23 22:06:44,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:06:44,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:06:44,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:06:44,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:06:44,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:06:43" (1/3) ... [2019-11-23 22:06:44,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e167a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:06:44, skipping insertion in model container [2019-11-23 22:06:44,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:06:43" (2/3) ... [2019-11-23 22:06:44,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e167a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:06:44, skipping insertion in model container [2019-11-23 22:06:44,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:06:44" (3/3) ... [2019-11-23 22:06:44,307 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2019-11-23 22:06:44,328 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:06:44,335 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:06:44,347 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:06:44,371 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:06:44,372 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:06:44,372 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:06:44,372 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:06:44,373 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:06:44,374 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:06:44,374 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:06:44,375 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:06:44,389 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2019-11-23 22:06:44,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-23 22:06:44,395 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:06:44,395 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:06:44,396 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:06:44,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:06:44,401 INFO L82 PathProgramCache]: Analyzing trace with hash 458325173, now seen corresponding path program 1 times [2019-11-23 22:06:44,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:06:44,408 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597138129] [2019-11-23 22:06:44,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:06:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:06:44,622 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 22:06:44,623 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597138129] [2019-11-23 22:06:44,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:06:44,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:06:44,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540213221] [2019-11-23 22:06:44,632 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:06:44,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:06:44,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:06:44,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:06:44,649 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 3 states. [2019-11-23 22:06:44,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:06:44,718 INFO L93 Difference]: Finished difference Result 106 states and 192 transitions. [2019-11-23 22:06:44,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:06:44,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-23 22:06:44,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:06:44,733 INFO L225 Difference]: With dead ends: 106 [2019-11-23 22:06:44,733 INFO L226 Difference]: Without dead ends: 92 [2019-11-23 22:06:44,736 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 22:06:44,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-23 22:06:44,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 62. [2019-11-23 22:06:44,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-23 22:06:44,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 117 transitions. [2019-11-23 22:06:44,781 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 117 transitions. Word has length 20 [2019-11-23 22:06:44,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:06:44,781 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 117 transitions. [2019-11-23 22:06:44,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:06:44,782 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 117 transitions. [2019-11-23 22:06:44,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-23 22:06:44,783 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:06:44,783 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:06:44,783 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:06:44,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:06:44,784 INFO L82 PathProgramCache]: Analyzing trace with hash 458332365, now seen corresponding path program 1 times [2019-11-23 22:06:44,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:06:44,785 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809387531] [2019-11-23 22:06:44,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:06:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:06:44,861 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 22:06:44,861 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809387531] [2019-11-23 22:06:44,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:06:44,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:06:44,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403406011] [2019-11-23 22:06:44,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:06:44,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:06:44,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:06:44,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:06:44,865 INFO L87 Difference]: Start difference. First operand 62 states and 117 transitions. Second operand 3 states. [2019-11-23 22:06:44,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:06:44,905 INFO L93 Difference]: Finished difference Result 154 states and 290 transitions. [2019-11-23 22:06:44,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:06:44,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-23 22:06:44,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:06:44,907 INFO L225 Difference]: With dead ends: 154 [2019-11-23 22:06:44,908 INFO L226 Difference]: Without dead ends: 93 [2019-11-23 22:06:44,909 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 22:06:44,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-11-23 22:06:44,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2019-11-23 22:06:44,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-23 22:06:44,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 171 transitions. [2019-11-23 22:06:44,925 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 171 transitions. Word has length 20 [2019-11-23 22:06:44,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:06:44,925 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 171 transitions. [2019-11-23 22:06:44,926 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:06:44,926 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 171 transitions. [2019-11-23 22:06:44,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-23 22:06:44,927 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:06:44,927 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:06:44,927 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:06:44,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:06:44,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1130022729, now seen corresponding path program 1 times [2019-11-23 22:06:44,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:06:44,929 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079169027] [2019-11-23 22:06:44,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:06:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:06:44,991 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 22:06:44,991 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079169027] [2019-11-23 22:06:44,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:06:44,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:06:44,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664750488] [2019-11-23 22:06:44,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:06:44,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:06:44,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:06:44,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:06:44,993 INFO L87 Difference]: Start difference. First operand 91 states and 171 transitions. Second operand 3 states. [2019-11-23 22:06:45,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:06:45,022 INFO L93 Difference]: Finished difference Result 142 states and 260 transitions. [2019-11-23 22:06:45,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:06:45,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-23 22:06:45,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:06:45,024 INFO L225 Difference]: With dead ends: 142 [2019-11-23 22:06:45,024 INFO L226 Difference]: Without dead ends: 95 [2019-11-23 22:06:45,025 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 22:06:45,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-23 22:06:45,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2019-11-23 22:06:45,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-11-23 22:06:45,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 171 transitions. [2019-11-23 22:06:45,036 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 171 transitions. Word has length 20 [2019-11-23 22:06:45,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:06:45,037 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 171 transitions. [2019-11-23 22:06:45,037 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:06:45,037 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 171 transitions. [2019-11-23 22:06:45,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-23 22:06:45,038 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:06:45,038 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:06:45,038 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:06:45,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:06:45,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1130015537, now seen corresponding path program 1 times [2019-11-23 22:06:45,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:06:45,040 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633075470] [2019-11-23 22:06:45,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:06:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:06:45,105 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 22:06:45,105 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633075470] [2019-11-23 22:06:45,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:06:45,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:06:45,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973580258] [2019-11-23 22:06:45,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:06:45,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:06:45,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:06:45,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:06:45,108 INFO L87 Difference]: Start difference. First operand 93 states and 171 transitions. Second operand 3 states. [2019-11-23 22:06:45,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:06:45,132 INFO L93 Difference]: Finished difference Result 215 states and 397 transitions. [2019-11-23 22:06:45,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:06:45,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-23 22:06:45,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:06:45,138 INFO L225 Difference]: With dead ends: 215 [2019-11-23 22:06:45,138 INFO L226 Difference]: Without dead ends: 126 [2019-11-23 22:06:45,139 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 22:06:45,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-11-23 22:06:45,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 124. [2019-11-23 22:06:45,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-11-23 22:06:45,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 226 transitions. [2019-11-23 22:06:45,153 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 226 transitions. Word has length 20 [2019-11-23 22:06:45,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:06:45,155 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 226 transitions. [2019-11-23 22:06:45,155 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:06:45,155 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 226 transitions. [2019-11-23 22:06:45,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-23 22:06:45,157 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:06:45,157 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:06:45,157 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:06:45,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:06:45,158 INFO L82 PathProgramCache]: Analyzing trace with hash 2143883405, now seen corresponding path program 1 times [2019-11-23 22:06:45,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:06:45,159 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467223157] [2019-11-23 22:06:45,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:06:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-23 22:06:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-23 22:06:45,280 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-23 22:06:45,280 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-23 22:06:45,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:06:45 BoogieIcfgContainer [2019-11-23 22:06:45,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:06:45,327 INFO L168 Benchmark]: Toolchain (without parser) took 2159.32 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 101.0 MB in the beginning and 96.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 62.0 MB. Max. memory is 7.1 GB. [2019-11-23 22:06:45,328 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-23 22:06:45,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.64 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 100.8 MB in the beginning and 179.0 MB in the end (delta: -78.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-11-23 22:06:45,330 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.55 ms. Allocated memory is still 200.3 MB. Free memory was 179.0 MB in the beginning and 176.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-11-23 22:06:45,331 INFO L168 Benchmark]: Boogie Preprocessor took 60.20 ms. Allocated memory is still 200.3 MB. Free memory was 176.4 MB in the beginning and 175.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-11-23 22:06:45,332 INFO L168 Benchmark]: RCFGBuilder took 521.27 ms. Allocated memory is still 200.3 MB. Free memory was 175.0 MB in the beginning and 152.7 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:06:45,333 INFO L168 Benchmark]: TraceAbstraction took 1024.59 ms. Allocated memory is still 200.3 MB. Free memory was 152.0 MB in the beginning and 96.2 MB in the end (delta: 55.8 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. [2019-11-23 22:06:45,337 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 479.64 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 100.8 MB in the beginning and 179.0 MB in the end (delta: -78.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 67.55 ms. Allocated memory is still 200.3 MB. Free memory was 179.0 MB in the beginning and 176.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.20 ms. Allocated memory is still 200.3 MB. Free memory was 176.4 MB in the beginning and 175.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 521.27 ms. Allocated memory is still 200.3 MB. Free memory was 175.0 MB in the beginning and 152.7 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1024.59 ms. Allocated memory is still 200.3 MB. Free memory was 152.0 MB in the beginning and 96.2 MB in the end (delta: 55.8 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 217]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L6] int p1 = __VERIFIER_nondet_int(); [L7] int lk1; [L9] int p2 = __VERIFIER_nondet_int(); [L10] int lk2; [L12] int p3 = __VERIFIER_nondet_int(); [L13] int lk3; [L15] int p4 = __VERIFIER_nondet_int(); [L16] int lk4; [L18] int p5 = __VERIFIER_nondet_int(); [L19] int lk5; [L21] int p6 = __VERIFIER_nondet_int(); [L22] int lk6; [L24] int p7 = __VERIFIER_nondet_int(); [L25] int lk7; [L27] int p8 = __VERIFIER_nondet_int(); [L28] int lk8; [L30] int p9 = __VERIFIER_nondet_int(); [L31] int lk9; [L33] int p10 = __VERIFIER_nondet_int(); [L34] int lk10; [L36] int p11 = __VERIFIER_nondet_int(); [L37] int lk11; [L39] int p12 = __VERIFIER_nondet_int(); [L40] int lk12; [L42] int p13 = __VERIFIER_nondet_int(); [L43] int lk13; [L45] int p14 = __VERIFIER_nondet_int(); [L46] int lk14; [L49] int cond; [L51] COND TRUE 1 [L52] cond = __VERIFIER_nondet_int() [L53] COND FALSE !(cond == 0) [L56] lk1 = 0 [L58] lk2 = 0 [L60] lk3 = 0 [L62] lk4 = 0 [L64] lk5 = 0 [L66] lk6 = 0 [L68] lk7 = 0 [L70] lk8 = 0 [L72] lk9 = 0 [L74] lk10 = 0 [L76] lk11 = 0 [L78] lk12 = 0 [L80] lk13 = 0 [L82] lk14 = 0 [L86] COND FALSE !(p1 != 0) [L90] COND FALSE !(p2 != 0) [L94] COND FALSE !(p3 != 0) [L98] COND TRUE p4 != 0 [L99] lk4 = 1 [L102] COND TRUE p5 != 0 [L103] lk5 = 1 [L106] COND TRUE p6 != 0 [L107] lk6 = 1 [L110] COND TRUE p7 != 0 [L111] lk7 = 1 [L114] COND TRUE p8 != 0 [L115] lk8 = 1 [L118] COND TRUE p9 != 0 [L119] lk9 = 1 [L122] COND TRUE p10 != 0 [L123] lk10 = 1 [L126] COND FALSE !(p11 != 0) [L130] COND TRUE p12 != 0 [L131] lk12 = 1 [L134] COND TRUE p13 != 0 [L135] lk13 = 1 [L138] COND TRUE p14 != 0 [L139] lk14 = 1 [L144] COND FALSE !(p1 != 0) [L149] COND FALSE !(p2 != 0) [L217] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 51 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 443 SDtfs, 282 SDslu, 282 SDs, 0 SdLazy, 21 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=4, 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, 4 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 4142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 incorrect! Received shutdown request...