java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-regression/test22-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:01:37,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:01:37,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:01:37,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:01:37,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:01:37,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:01:37,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:01:37,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:01:37,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:01:37,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:01:37,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:01:37,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:01:37,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:01:37,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:01:37,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:01:37,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:01:37,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:01:37,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:01:37,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:01:37,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:01:37,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:01:37,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:01:37,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:01:37,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:01:37,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:01:37,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:01:37,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:01:37,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:01:37,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:01:37,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:01:37,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:01:37,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:01:37,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:01:37,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:01:37,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:01:37,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:01:37,130 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:01:37,144 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:01:37,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:01:37,145 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:01:37,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:01:37,145 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:01:37,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:01:37,146 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:01:37,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:01:37,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:01:37,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:01:37,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:01:37,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:01:37,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:01:37,147 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:01:37,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:01:37,148 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:01:37,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:01:37,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:01:37,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:01:37,148 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:01:37,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:01:37,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:01:37,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:01:37,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:01:37,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:01:37,150 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:01:37,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:01:37,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:01:37,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:01:37,406 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:01:37,418 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:01:37,421 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:01:37,423 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:01:37,423 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:01:37,424 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test22-1.c [2019-10-15 01:01:37,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/752188f21/df6de755705441079301c7134f94a7a3/FLAG1a9672b21 [2019-10-15 01:01:37,922 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:01:37,924 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test22-1.c [2019-10-15 01:01:37,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/752188f21/df6de755705441079301c7134f94a7a3/FLAG1a9672b21 [2019-10-15 01:01:38,300 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/752188f21/df6de755705441079301c7134f94a7a3 [2019-10-15 01:01:38,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:01:38,312 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:01:38,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:38,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:01:38,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:01:38,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2706ae3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38, skipping insertion in model container [2019-10-15 01:01:38,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,329 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:01:38,350 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:01:38,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:38,556 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:01:38,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:38,588 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:01:38,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38 WrapperNode [2019-10-15 01:01:38,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:38,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:01:38,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:01:38,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:01:38,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:01:38,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:01:38,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:01:38,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:01:38,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:01:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:01:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:01:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-15 01:01:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2019-10-15 01:01:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-10-15 01:01:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:01:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:01:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:01:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-15 01:01:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-15 01:01:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:01:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2019-10-15 01:01:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-15 01:01:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:01:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:01:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:01:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:01:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:01:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:01:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:01:39,050 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:01:39,050 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:01:39,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:01:39 BoogieIcfgContainer [2019-10-15 01:01:39,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:01:39,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:01:39,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:01:39,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:01:39,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:01:38" (1/3) ... [2019-10-15 01:01:39,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfb40b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:01:39, skipping insertion in model container [2019-10-15 01:01:39,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (2/3) ... [2019-10-15 01:01:39,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfb40b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:01:39, skipping insertion in model container [2019-10-15 01:01:39,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:01:39" (3/3) ... [2019-10-15 01:01:39,067 INFO L109 eAbstractionObserver]: Analyzing ICFG test22-1.c [2019-10-15 01:01:39,076 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:01:39,083 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:01:39,094 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:01:39,117 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:01:39,117 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:01:39,118 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:01:39,118 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:01:39,118 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:01:39,118 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:01:39,118 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:01:39,118 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:01:39,133 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-10-15 01:01:39,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-15 01:01:39,139 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:39,140 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:39,142 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:39,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:39,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1345538594, now seen corresponding path program 1 times [2019-10-15 01:01:39,153 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:39,153 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375906065] [2019-10-15 01:01:39,153 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:39,153 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:39,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:39,353 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:01:39,354 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375906065] [2019-10-15 01:01:39,355 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:01:39,355 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:01:39,356 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305169422] [2019-10-15 01:01:39,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:01:39,362 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:39,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:01:39,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:01:39,384 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-10-15 01:01:39,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:39,420 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2019-10-15 01:01:39,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:01:39,422 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 37 [2019-10-15 01:01:39,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:39,431 INFO L225 Difference]: With dead ends: 49 [2019-10-15 01:01:39,431 INFO L226 Difference]: Without dead ends: 31 [2019-10-15 01:01:39,435 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:01:39,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-15 01:01:39,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-10-15 01:01:39,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-15 01:01:39,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2019-10-15 01:01:39,480 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 37 [2019-10-15 01:01:39,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:39,482 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-10-15 01:01:39,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:01:39,482 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2019-10-15 01:01:39,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-15 01:01:39,484 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:39,485 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:39,485 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:39,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:39,486 INFO L82 PathProgramCache]: Analyzing trace with hash -213153012, now seen corresponding path program 1 times [2019-10-15 01:01:39,486 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:39,486 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864149189] [2019-10-15 01:01:39,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:39,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:39,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:39,856 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:01:39,856 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864149189] [2019-10-15 01:01:39,857 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014903601] [2019-10-15 01:01:39,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:01:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:39,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-15 01:01:39,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:01:40,130 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:01:40,172 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2019-10-15 01:01:40,175 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:01:40,180 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2019-10-15 01:01:40,181 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 01:01:40,196 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:01:40,197 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:01:40,197 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:5 [2019-10-15 01:01:40,203 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:01:40,203 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:01:40,280 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:01:40,281 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 21 [2019-10-15 01:01:40,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:01:40,283 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:01:40,288 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:01:40,289 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:01:40,290 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:10 [2019-10-15 01:01:40,362 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:01:40,363 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:01:40,363 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [10] total 16 [2019-10-15 01:01:40,363 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249981530] [2019-10-15 01:01:40,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:01:40,366 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:40,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:01:40,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:01:40,370 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 10 states. [2019-10-15 01:01:40,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:40,597 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2019-10-15 01:01:40,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:01:40,599 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2019-10-15 01:01:40,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:40,601 INFO L225 Difference]: With dead ends: 44 [2019-10-15 01:01:40,601 INFO L226 Difference]: Without dead ends: 36 [2019-10-15 01:01:40,603 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2019-10-15 01:01:40,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-15 01:01:40,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2019-10-15 01:01:40,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-10-15 01:01:40,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2019-10-15 01:01:40,618 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 38 [2019-10-15 01:01:40,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:40,620 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2019-10-15 01:01:40,625 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:01:40,625 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2019-10-15 01:01:40,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-15 01:01:40,627 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:40,627 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:40,829 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:01:40,830 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:40,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:40,830 INFO L82 PathProgramCache]: Analyzing trace with hash -553434622, now seen corresponding path program 1 times [2019-10-15 01:01:40,830 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:40,831 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002285929] [2019-10-15 01:01:40,831 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:40,832 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:40,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:41,131 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:01:41,132 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002285929] [2019-10-15 01:01:41,132 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936909182] [2019-10-15 01:01:41,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:01:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:41,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 01:01:41,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:01:41,396 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:01:41,427 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2019-10-15 01:01:41,428 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:01:41,433 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2019-10-15 01:01:41,434 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 01:01:41,445 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:01:41,446 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:01:41,446 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:5 [2019-10-15 01:01:41,453 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:01:41,454 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:01:41,567 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:01:41,567 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 21 [2019-10-15 01:01:41,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:01:41,569 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:01:41,573 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:01:41,573 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:01:41,574 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:10 [2019-10-15 01:01:41,634 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:01:41,634 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1789983500] [2019-10-15 01:01:41,641 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 43 [2019-10-15 01:01:41,683 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:01:41,684 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:01:41,735 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:01:41,736 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 13 root evaluator evaluations with a maximum evaluation depth of 0. Performed 13 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 20 variables. [2019-10-15 01:01:41,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:41,740 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:01:41,772 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-15 01:01:41,773 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:01:41,775 INFO L553 sIntCurrentIteration]: We unified 41 AI predicates to 41 [2019-10-15 01:01:41,775 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:01:41,776 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:01:41,776 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [13, 8, 8] total 23 [2019-10-15 01:01:41,776 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459040031] [2019-10-15 01:01:41,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:01:41,777 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:41,778 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:01:41,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:01:41,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:01:41,778 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 2 states. [2019-10-15 01:01:41,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:41,784 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2019-10-15 01:01:41,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:01:41,784 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-15 01:01:41,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:41,784 INFO L225 Difference]: With dead ends: 35 [2019-10-15 01:01:41,784 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:01:41,785 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:01:41,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:01:41,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:01:41,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:01:41,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:01:41,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2019-10-15 01:01:41,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:41,786 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:01:41,787 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:01:41,787 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:01:41,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:01:41,991 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:01:41,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:01:42,022 INFO L443 ceAbstractionStarter]: For program point initEXIT(lines 11 18) no Hoare annotation was computed. [2019-10-15 01:01:42,022 INFO L446 ceAbstractionStarter]: At program point initENTRY(lines 11 18) the Hoare annotation is: true [2019-10-15 01:01:42,022 INFO L443 ceAbstractionStarter]: For program point initFINAL(lines 11 18) no Hoare annotation was computed. [2019-10-15 01:01:42,022 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:01:42,022 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:01:42,023 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:01:42,023 INFO L443 ceAbstractionStarter]: For program point get_dummyFINAL(lines 20 23) no Hoare annotation was computed. [2019-10-15 01:01:42,023 INFO L446 ceAbstractionStarter]: At program point get_dummyENTRY(lines 20 23) the Hoare annotation is: true [2019-10-15 01:01:42,023 INFO L443 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-10-15 01:01:42,023 INFO L443 ceAbstractionStarter]: For program point get_dummyEXIT(lines 20 23) no Hoare annotation was computed. [2019-10-15 01:01:42,023 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:01:42,023 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-15 01:01:42,024 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:01:42,024 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:01:42,024 INFO L443 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed. [2019-10-15 01:01:42,024 INFO L443 ceAbstractionStarter]: For program point L35-2(lines 35 44) no Hoare annotation was computed. [2019-10-15 01:01:42,024 INFO L446 ceAbstractionStarter]: At program point L33-1(line 33) the Hoare annotation is: true [2019-10-15 01:01:42,024 INFO L443 ceAbstractionStarter]: For program point L33-2(line 33) no Hoare annotation was computed. [2019-10-15 01:01:42,024 INFO L443 ceAbstractionStarter]: For program point L35-4(lines 35 44) no Hoare annotation was computed. [2019-10-15 01:01:42,025 INFO L446 ceAbstractionStarter]: At program point L33-3(line 33) the Hoare annotation is: true [2019-10-15 01:01:42,025 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2019-10-15 01:01:42,025 INFO L443 ceAbstractionStarter]: For program point L33-4(line 33) no Hoare annotation was computed. [2019-10-15 01:01:42,025 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 30 50) no Hoare annotation was computed. [2019-10-15 01:01:42,025 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 30 50) no Hoare annotation was computed. [2019-10-15 01:01:42,025 INFO L446 ceAbstractionStarter]: At program point L42(lines 31 50) the Hoare annotation is: true [2019-10-15 01:01:42,025 INFO L443 ceAbstractionStarter]: For program point L38-1(lines 38 40) no Hoare annotation was computed. [2019-10-15 01:01:42,026 INFO L446 ceAbstractionStarter]: At program point L38-3(lines 38 40) the Hoare annotation is: true [2019-10-15 01:01:42,026 INFO L446 ceAbstractionStarter]: At program point L38-4(lines 38 40) the Hoare annotation is: true [2019-10-15 01:01:42,026 INFO L446 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: true [2019-10-15 01:01:42,026 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 30 50) the Hoare annotation is: true [2019-10-15 01:01:42,026 INFO L443 ceAbstractionStarter]: For program point L41(line 41) no Hoare annotation was computed. [2019-10-15 01:01:42,026 INFO L443 ceAbstractionStarter]: For program point L41-1(lines 41 43) no Hoare annotation was computed. [2019-10-15 01:01:42,027 INFO L443 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2019-10-15 01:01:42,027 INFO L446 ceAbstractionStarter]: At program point checkENTRY(lines 25 28) the Hoare annotation is: true [2019-10-15 01:01:42,027 INFO L443 ceAbstractionStarter]: For program point checkFINAL(lines 25 28) no Hoare annotation was computed. [2019-10-15 01:01:42,027 INFO L443 ceAbstractionStarter]: For program point checkEXIT(lines 25 28) no Hoare annotation was computed. [2019-10-15 01:01:42,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:01:42 BoogieIcfgContainer [2019-10-15 01:01:42,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:01:42,039 INFO L168 Benchmark]: Toolchain (without parser) took 3727.65 ms. Allocated memory was 137.4 MB in the beginning and 248.0 MB in the end (delta: 110.6 MB). Free memory was 100.9 MB in the beginning and 168.0 MB in the end (delta: -67.1 MB). Peak memory consumption was 43.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:42,040 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory is still 119.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 01:01:42,041 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.70 ms. Allocated memory is still 137.4 MB. Free memory was 100.9 MB in the beginning and 90.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:42,042 INFO L168 Benchmark]: Boogie Preprocessor took 114.95 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 90.6 MB in the beginning and 178.3 MB in the end (delta: -87.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:42,042 INFO L168 Benchmark]: RCFGBuilder took 347.41 ms. Allocated memory is still 200.8 MB. Free memory was 178.3 MB in the beginning and 159.7 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:42,043 INFO L168 Benchmark]: TraceAbstraction took 2976.99 ms. Allocated memory was 200.8 MB in the beginning and 248.0 MB in the end (delta: 47.2 MB). Free memory was 159.7 MB in the beginning and 168.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 38.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:42,049 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory is still 119.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 275.70 ms. Allocated memory is still 137.4 MB. Free memory was 100.9 MB in the beginning and 90.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.95 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 90.6 MB in the beginning and 178.3 MB in the end (delta: -87.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 347.41 ms. Allocated memory is still 200.8 MB. Free memory was 178.3 MB in the beginning and 159.7 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2976.99 ms. Allocated memory was 200.8 MB in the beginning and 248.0 MB in the end (delta: 47.2 MB). Free memory was 159.7 MB in the beginning and 168.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 38.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: 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: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 36 locations, 1 error locations. Result: SAFE, OverallTime: 2.9s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 72 SDtfs, 12 SDslu, 148 SDs, 0 SdLazy, 49 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 17 PreInvPairs, 17 NumberOfFragments, 13 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 270 ConstructedInterpolants, 0 QuantifiedInterpolants, 31240 SizeOfPredicates, 26 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 72/102 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 99, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 1.3414634146341464, AVG_WEAKENED_CONJUNCTS: 0.0, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...