/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/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:33:35,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:33:35,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:33:35,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 23:33:35,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 23:33:35,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 23:33:35,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 23:33:35,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 23:33:35,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 23:33:35,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 23:33:35,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 23:33:35,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 23:33:35,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 23:33:35,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 23:33:35,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 23:33:35,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 23:33:35,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 23:33:35,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 23:33:35,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 23:33:35,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 23:33:35,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 23:33:35,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 23:33:35,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 23:33:35,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 23:33:35,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-23 23:33:35,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-23 23:33:35,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-23 23:33:35,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-23 23:33:35,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-23 23:33:35,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-23 23:33:35,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-23 23:33:35,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-23 23:33:35,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-23 23:33:35,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-23 23:33:35,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-23 23:33:35,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-23 23:33:35,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-23 23:33:35,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-23 23:33:35,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 23:33:35,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 23:33:35,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 23:33:35,218 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-23 23:33:35,242 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:33:35,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:33:35,243 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:33:35,243 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:33:35,244 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:33:35,244 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:33:35,244 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:33:35,244 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:33:35,244 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:33:35,244 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:33:35,246 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:33:35,246 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:33:35,246 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:33:35,246 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:33:35,246 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:33:35,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:33:35,249 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:33:35,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:33:35,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:33:35,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:33:35,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:33:35,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:33:35,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:33:35,255 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:33:35,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:33:35,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:33:35,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:33:35,256 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:33:35,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:33:35,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:33:35,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:33:35,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:33:35,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:33:35,259 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:33:35,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:33:35,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:33:35,259 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:33:35,260 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:33:35,525 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:33:35,538 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:33:35,542 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:33:35,543 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:33:35,544 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:33:35,544 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label57.c [2019-11-23 23:33:35,634 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24405853/5c9d14a5a8b84f259e58d0b347acca01/FLAG7845e74d3 [2019-11-23 23:33:36,266 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:33:36,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label57.c [2019-11-23 23:33:36,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24405853/5c9d14a5a8b84f259e58d0b347acca01/FLAG7845e74d3 [2019-11-23 23:33:36,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24405853/5c9d14a5a8b84f259e58d0b347acca01 [2019-11-23 23:33:36,561 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 23:33:36,563 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 23:33:36,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 23:33:36,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 23:33:36,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 23:33:36,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:33:36" (1/1) ... [2019-11-23 23:33:36,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4144e829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:36, skipping insertion in model container [2019-11-23 23:33:36,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:33:36" (1/1) ... [2019-11-23 23:33:36,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 23:33:36,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 23:33:37,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:33:37,133 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 23:33:37,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:33:37,307 INFO L208 MainTranslator]: Completed translation [2019-11-23 23:33:37,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:37 WrapperNode [2019-11-23 23:33:37,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 23:33:37,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 23:33:37,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 23:33:37,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 23:33:37,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:37" (1/1) ... [2019-11-23 23:33:37,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:37" (1/1) ... [2019-11-23 23:33:37,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 23:33:37,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 23:33:37,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 23:33:37,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 23:33:37,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:37" (1/1) ... [2019-11-23 23:33:37,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:37" (1/1) ... [2019-11-23 23:33:37,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:37" (1/1) ... [2019-11-23 23:33:37,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:37" (1/1) ... [2019-11-23 23:33:37,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:37" (1/1) ... [2019-11-23 23:33:37,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:37" (1/1) ... [2019-11-23 23:33:37,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:37" (1/1) ... [2019-11-23 23:33:37,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 23:33:37,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 23:33:37,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 23:33:37,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 23:33:37,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:37" (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 23:33:37,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 23:33:37,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 23:33:39,691 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 23:33:39,692 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-23 23:33:39,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:33:39 BoogieIcfgContainer [2019-11-23 23:33:39,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 23:33:39,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 23:33:39,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 23:33:39,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 23:33:39,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:33:36" (1/3) ... [2019-11-23 23:33:39,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6934860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:33:39, skipping insertion in model container [2019-11-23 23:33:39,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:37" (2/3) ... [2019-11-23 23:33:39,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6934860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:33:39, skipping insertion in model container [2019-11-23 23:33:39,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:33:39" (3/3) ... [2019-11-23 23:33:39,705 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label57.c [2019-11-23 23:33:39,714 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 23:33:39,720 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 23:33:39,732 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 23:33:39,760 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 23:33:39,760 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 23:33:39,760 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 23:33:39,760 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 23:33:39,761 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 23:33:39,761 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 23:33:39,761 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 23:33:39,761 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 23:33:39,788 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2019-11-23 23:33:39,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-11-23 23:33:39,801 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:33:39,802 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, 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, 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, 1, 1] [2019-11-23 23:33:39,803 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:33:39,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:33:39,809 INFO L82 PathProgramCache]: Analyzing trace with hash 925945225, now seen corresponding path program 1 times [2019-11-23 23:33:39,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:33:39,819 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91999997] [2019-11-23 23:33:39,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:33:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:33:40,139 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 23:33:40,140 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91999997] [2019-11-23 23:33:40,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:33:40,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 23:33:40,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145038999] [2019-11-23 23:33:40,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 23:33:40,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:33:40,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 23:33:40,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:33:40,168 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 3 states. [2019-11-23 23:33:40,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:33:40,699 INFO L93 Difference]: Finished difference Result 251 states and 482 transitions. [2019-11-23 23:33:40,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:33:40,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-11-23 23:33:40,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:33:40,717 INFO L225 Difference]: With dead ends: 251 [2019-11-23 23:33:40,717 INFO L226 Difference]: Without dead ends: 163 [2019-11-23 23:33:40,721 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 23:33:40,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-11-23 23:33:40,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2019-11-23 23:33:40,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2019-11-23 23:33:40,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 288 transitions. [2019-11-23 23:33:40,821 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 288 transitions. Word has length 80 [2019-11-23 23:33:40,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:33:40,822 INFO L462 AbstractCegarLoop]: Abstraction has 163 states and 288 transitions. [2019-11-23 23:33:40,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 23:33:40,822 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 288 transitions. [2019-11-23 23:33:40,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-11-23 23:33:40,826 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:33:40,827 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:33:40,827 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:33:40,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:33:40,828 INFO L82 PathProgramCache]: Analyzing trace with hash 221745704, now seen corresponding path program 1 times [2019-11-23 23:33:40,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:33:40,828 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001990368] [2019-11-23 23:33:40,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:33:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:33:40,954 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:33:40,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001990368] [2019-11-23 23:33:40,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:33:40,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:33:40,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108113578] [2019-11-23 23:33:40,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:33:40,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:33:40,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:33:40,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:33:40,963 INFO L87 Difference]: Start difference. First operand 163 states and 288 transitions. Second operand 4 states. [2019-11-23 23:33:41,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:33:41,580 INFO L93 Difference]: Finished difference Result 645 states and 1147 transitions. [2019-11-23 23:33:41,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:33:41,580 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2019-11-23 23:33:41,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:33:41,584 INFO L225 Difference]: With dead ends: 645 [2019-11-23 23:33:41,585 INFO L226 Difference]: Without dead ends: 483 [2019-11-23 23:33:41,587 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:33:41,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2019-11-23 23:33:41,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 323. [2019-11-23 23:33:41,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2019-11-23 23:33:41,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 548 transitions. [2019-11-23 23:33:41,609 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 548 transitions. Word has length 98 [2019-11-23 23:33:41,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:33:41,609 INFO L462 AbstractCegarLoop]: Abstraction has 323 states and 548 transitions. [2019-11-23 23:33:41,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:33:41,610 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 548 transitions. [2019-11-23 23:33:41,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-11-23 23:33:41,615 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:33:41,615 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2019-11-23 23:33:41,616 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:33:41,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:33:41,616 INFO L82 PathProgramCache]: Analyzing trace with hash -450020859, now seen corresponding path program 1 times [2019-11-23 23:33:41,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:33:41,617 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655187602] [2019-11-23 23:33:41,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:33:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:33:41,762 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:33:41,763 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655187602] [2019-11-23 23:33:41,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:33:41,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:33:41,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720955412] [2019-11-23 23:33:41,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:33:41,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:33:41,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:33:41,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:33:41,769 INFO L87 Difference]: Start difference. First operand 323 states and 548 transitions. Second operand 4 states. [2019-11-23 23:33:42,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:33:42,447 INFO L93 Difference]: Finished difference Result 1285 states and 2187 transitions. [2019-11-23 23:33:42,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:33:42,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2019-11-23 23:33:42,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:33:42,453 INFO L225 Difference]: With dead ends: 1285 [2019-11-23 23:33:42,454 INFO L226 Difference]: Without dead ends: 963 [2019-11-23 23:33:42,456 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:33:42,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2019-11-23 23:33:42,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 803. [2019-11-23 23:33:42,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-11-23 23:33:42,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1249 transitions. [2019-11-23 23:33:42,490 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1249 transitions. Word has length 109 [2019-11-23 23:33:42,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:33:42,491 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 1249 transitions. [2019-11-23 23:33:42,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:33:42,491 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1249 transitions. [2019-11-23 23:33:42,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-11-23 23:33:42,498 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:33:42,498 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1] [2019-11-23 23:33:42,498 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:33:42,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:33:42,499 INFO L82 PathProgramCache]: Analyzing trace with hash -400996289, now seen corresponding path program 1 times [2019-11-23 23:33:42,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:33:42,499 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113063147] [2019-11-23 23:33:42,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:33:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:33:42,635 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-11-23 23:33:42,636 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113063147] [2019-11-23 23:33:42,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:33:42,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:33:42,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551989881] [2019-11-23 23:33:42,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:33:42,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:33:42,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:33:42,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:33:42,640 INFO L87 Difference]: Start difference. First operand 803 states and 1249 transitions. Second operand 4 states. [2019-11-23 23:33:43,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:33:43,428 INFO L93 Difference]: Finished difference Result 2885 states and 4419 transitions. [2019-11-23 23:33:43,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:33:43,430 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 125 [2019-11-23 23:33:43,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:33:43,440 INFO L225 Difference]: With dead ends: 2885 [2019-11-23 23:33:43,440 INFO L226 Difference]: Without dead ends: 2083 [2019-11-23 23:33:43,442 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:33:43,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2019-11-23 23:33:43,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1283. [2019-11-23 23:33:43,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1283 states. [2019-11-23 23:33:43,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1858 transitions. [2019-11-23 23:33:43,483 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1858 transitions. Word has length 125 [2019-11-23 23:33:43,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:33:43,483 INFO L462 AbstractCegarLoop]: Abstraction has 1283 states and 1858 transitions. [2019-11-23 23:33:43,483 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:33:43,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1858 transitions. [2019-11-23 23:33:43,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-11-23 23:33:43,487 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:33:43,488 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1] [2019-11-23 23:33:43,488 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:33:43,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:33:43,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1423427735, now seen corresponding path program 1 times [2019-11-23 23:33:43,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:33:43,489 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828239957] [2019-11-23 23:33:43,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:33:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:33:43,549 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-11-23 23:33:43,550 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828239957] [2019-11-23 23:33:43,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:33:43,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:33:43,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709759666] [2019-11-23 23:33:43,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 23:33:43,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:33:43,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 23:33:43,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:33:43,552 INFO L87 Difference]: Start difference. First operand 1283 states and 1858 transitions. Second operand 3 states. [2019-11-23 23:33:43,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:33:43,999 INFO L93 Difference]: Finished difference Result 2805 states and 4060 transitions. [2019-11-23 23:33:44,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:33:44,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-11-23 23:33:44,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:33:44,010 INFO L225 Difference]: With dead ends: 2805 [2019-11-23 23:33:44,011 INFO L226 Difference]: Without dead ends: 1523 [2019-11-23 23:33:44,014 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 23:33:44,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2019-11-23 23:33:44,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1363. [2019-11-23 23:33:44,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1363 states. [2019-11-23 23:33:44,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1908 transitions. [2019-11-23 23:33:44,058 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1908 transitions. Word has length 133 [2019-11-23 23:33:44,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:33:44,058 INFO L462 AbstractCegarLoop]: Abstraction has 1363 states and 1908 transitions. [2019-11-23 23:33:44,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 23:33:44,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1908 transitions. [2019-11-23 23:33:44,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-23 23:33:44,065 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:33:44,065 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 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, 1, 1, 1] [2019-11-23 23:33:44,066 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:33:44,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:33:44,066 INFO L82 PathProgramCache]: Analyzing trace with hash 440359270, now seen corresponding path program 1 times [2019-11-23 23:33:44,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:33:44,067 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591979970] [2019-11-23 23:33:44,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:33:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:33:44,151 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2019-11-23 23:33:44,152 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591979970] [2019-11-23 23:33:44,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:33:44,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 23:33:44,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977573119] [2019-11-23 23:33:44,153 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:33:44,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:33:44,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:33:44,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:33:44,154 INFO L87 Difference]: Start difference. First operand 1363 states and 1908 transitions. Second operand 4 states. [2019-11-23 23:33:44,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:33:44,750 INFO L93 Difference]: Finished difference Result 3123 states and 4339 transitions. [2019-11-23 23:33:44,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:33:44,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 150 [2019-11-23 23:33:44,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:33:44,752 INFO L225 Difference]: With dead ends: 3123 [2019-11-23 23:33:44,752 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 23:33:44,755 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:33:44,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 23:33:44,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 23:33:44,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 23:33:44,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 23:33:44,756 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2019-11-23 23:33:44,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:33:44,756 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 23:33:44,757 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:33:44,757 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 23:33:44,757 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 23:33:44,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 23:33:45,053 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 25 [2019-11-23 23:33:45,056 INFO L444 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-11-23 23:33:45,057 INFO L444 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-11-23 23:33:45,057 INFO L444 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-11-23 23:33:45,057 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-11-23 23:33:45,057 INFO L444 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-11-23 23:33:45,058 INFO L444 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-11-23 23:33:45,058 INFO L444 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-11-23 23:33:45,058 INFO L444 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-11-23 23:33:45,059 INFO L444 ceAbstractionStarter]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2019-11-23 23:33:45,059 INFO L444 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-11-23 23:33:45,059 INFO L444 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-11-23 23:33:45,059 INFO L444 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-11-23 23:33:45,060 INFO L444 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-11-23 23:33:45,060 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-11-23 23:33:45,060 INFO L444 ceAbstractionStarter]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2019-11-23 23:33:45,060 INFO L444 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-11-23 23:33:45,061 INFO L444 ceAbstractionStarter]: For program point L445(line 445) no Hoare annotation was computed. [2019-11-23 23:33:45,061 INFO L444 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-11-23 23:33:45,061 INFO L444 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-11-23 23:33:45,061 INFO L444 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-11-23 23:33:45,061 INFO L444 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-11-23 23:33:45,061 INFO L444 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-11-23 23:33:45,062 INFO L444 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-11-23 23:33:45,062 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-11-23 23:33:45,062 INFO L444 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-11-23 23:33:45,062 INFO L444 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-11-23 23:33:45,062 INFO L444 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-11-23 23:33:45,062 INFO L444 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-11-23 23:33:45,063 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 23:33:45,063 INFO L444 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-11-23 23:33:45,063 INFO L444 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-11-23 23:33:45,063 INFO L444 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-11-23 23:33:45,063 INFO L444 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-11-23 23:33:45,063 INFO L444 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-11-23 23:33:45,063 INFO L444 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-11-23 23:33:45,064 INFO L444 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-11-23 23:33:45,064 INFO L444 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-11-23 23:33:45,064 INFO L444 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-11-23 23:33:45,064 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-11-23 23:33:45,064 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 445) no Hoare annotation was computed. [2019-11-23 23:33:45,064 INFO L444 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-11-23 23:33:45,064 INFO L444 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-11-23 23:33:45,064 INFO L444 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-11-23 23:33:45,065 INFO L444 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-11-23 23:33:45,065 INFO L440 ceAbstractionStarter]: At program point L597(lines 29 598) the Hoare annotation is: (let ((.cse3 (not (= ~a25~0 1))) (.cse2 (not (= ~a28~0 8))) (.cse0 (= ~a19~0 1)) (.cse4 (not (= ~a11~0 1))) (.cse1 (not (= ~a28~0 11)))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and .cse3 .cse4) (and .cse3 .cse2) (and .cse0 .cse4) (and (<= ~a11~0 0) .cse1))) [2019-11-23 23:33:45,065 INFO L444 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-11-23 23:33:45,065 INFO L444 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-11-23 23:33:45,065 INFO L447 ceAbstractionStarter]: At program point L600(lines 600 617) the Hoare annotation is: true [2019-11-23 23:33:45,065 INFO L444 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-11-23 23:33:45,066 INFO L444 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-11-23 23:33:45,066 INFO L444 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-11-23 23:33:45,066 INFO L444 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-11-23 23:33:45,066 INFO L444 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-11-23 23:33:45,066 INFO L444 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-11-23 23:33:45,066 INFO L444 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-11-23 23:33:45,066 INFO L440 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse3 (not (= ~a25~0 1))) (.cse2 (not (= ~a28~0 8))) (.cse0 (= ~a19~0 1)) (.cse4 (not (= ~a11~0 1))) (.cse1 (not (= ~a28~0 11)))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and .cse3 .cse4) (and .cse3 .cse2) (and .cse0 .cse4) (and (<= ~a11~0 0) .cse1))) [2019-11-23 23:33:45,067 INFO L444 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-11-23 23:33:45,067 INFO L444 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-11-23 23:33:45,067 INFO L444 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-11-23 23:33:45,067 INFO L444 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-11-23 23:33:45,067 INFO L444 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-11-23 23:33:45,067 INFO L444 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-11-23 23:33:45,067 INFO L444 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2019-11-23 23:33:45,068 INFO L444 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-11-23 23:33:45,068 INFO L444 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-11-23 23:33:45,068 INFO L444 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-11-23 23:33:45,068 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 23:33:45,068 INFO L444 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-11-23 23:33:45,068 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-11-23 23:33:45,068 INFO L444 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-11-23 23:33:45,068 INFO L444 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-11-23 23:33:45,069 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-11-23 23:33:45,069 INFO L444 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-11-23 23:33:45,069 INFO L444 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-11-23 23:33:45,069 INFO L444 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-11-23 23:33:45,069 INFO L444 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-11-23 23:33:45,069 INFO L444 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-11-23 23:33:45,070 INFO L444 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-11-23 23:33:45,070 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-11-23 23:33:45,070 INFO L444 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-11-23 23:33:45,070 INFO L444 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-11-23 23:33:45,070 INFO L444 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-11-23 23:33:45,070 INFO L444 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-11-23 23:33:45,070 INFO L444 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-11-23 23:33:45,071 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-11-23 23:33:45,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:33:45 BoogieIcfgContainer [2019-11-23 23:33:45,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 23:33:45,092 INFO L168 Benchmark]: Toolchain (without parser) took 8528.57 ms. Allocated memory was 138.4 MB in the beginning and 339.7 MB in the end (delta: 201.3 MB). Free memory was 100.1 MB in the beginning and 88.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 212.9 MB. Max. memory is 7.1 GB. [2019-11-23 23:33:45,093 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-23 23:33:45,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.73 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 99.9 MB in the beginning and 163.0 MB in the end (delta: -63.1 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2019-11-23 23:33:45,095 INFO L168 Benchmark]: Boogie Procedure Inliner took 133.33 ms. Allocated memory is still 201.9 MB. Free memory was 163.0 MB in the beginning and 157.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2019-11-23 23:33:45,096 INFO L168 Benchmark]: Boogie Preprocessor took 84.95 ms. Allocated memory is still 201.9 MB. Free memory was 157.7 MB in the beginning and 153.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2019-11-23 23:33:45,097 INFO L168 Benchmark]: RCFGBuilder took 2166.06 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 153.1 MB in the beginning and 184.6 MB in the end (delta: -31.5 MB). Peak memory consumption was 110.2 MB. Max. memory is 7.1 GB. [2019-11-23 23:33:45,098 INFO L168 Benchmark]: TraceAbstraction took 5395.36 ms. Allocated memory was 247.5 MB in the beginning and 339.7 MB in the end (delta: 92.3 MB). Free memory was 184.6 MB in the beginning and 88.5 MB in the end (delta: 96.1 MB). Peak memory consumption was 188.4 MB. Max. memory is 7.1 GB. [2019-11-23 23:33:45,104 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.73 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 99.9 MB in the beginning and 163.0 MB in the end (delta: -63.1 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 133.33 ms. Allocated memory is still 201.9 MB. Free memory was 163.0 MB in the beginning and 157.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.95 ms. Allocated memory is still 201.9 MB. Free memory was 157.7 MB in the beginning and 153.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2166.06 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 153.1 MB in the beginning and 184.6 MB in the end (delta: -31.5 MB). Peak memory consumption was 110.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5395.36 ms. Allocated memory was 247.5 MB in the beginning and 339.7 MB in the end (delta: 92.3 MB). Free memory was 184.6 MB in the beginning and 88.5 MB in the end (delta: 96.1 MB). Peak memory consumption was 188.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 445]: 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: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((a19 == 1 && !(a28 == 11)) || (!(a28 == 8) && !(a28 == 11))) || (!(a25 == 1) && !(a11 == 1))) || (!(a25 == 1) && !(a28 == 8))) || (a19 == 1 && !(a11 == 1))) || (a11 <= 0 && !(a28 == 11)) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((a19 == 1 && !(a28 == 11)) || (!(a28 == 8) && !(a28 == 11))) || (!(a25 == 1) && !(a11 == 1))) || (!(a25 == 1) && !(a28 == 8))) || (a19 == 1 && !(a11 == 1))) || (a11 <= 0 && !(a28 == 11)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Result: SAFE, OverallTime: 5.3s, OverallIterations: 6, TraceHistogramMax: 5, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 313 SDtfs, 779 SDslu, 76 SDs, 0 SdLazy, 2241 SolverSat, 605 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1363occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1280 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 49 NumberOfFragments, 105 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1516 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 230 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 695 NumberOfCodeBlocks, 695 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 689 ConstructedInterpolants, 0 QuantifiedInterpolants, 126407 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 331/331 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...