/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:36:06,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:36:06,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:36:06,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:36:06,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:36:06,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:36:06,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:36:06,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:36:06,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:36:06,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:36:06,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:36:06,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:36:06,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:36:06,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:36:06,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:36:06,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:36:06,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:36:06,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:36:06,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:36:06,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:36:06,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:36:06,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:36:06,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:36:06,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:36:06,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 11:36:06,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:36:06,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:36:06,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:36:06,570 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 [2020-07-20 11:36:06,605 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:36:06,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:36:06,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:36:06,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:36:06,609 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:36:06,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:36:06,610 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:36:06,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:36:06,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:36:06,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:36:06,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:36:06,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:36:06,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:36:06,614 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:36:06,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:36:06,614 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:36:06,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:36:06,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:36:06,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:36:06,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:36:06,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:36:06,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:36:06,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:36:06,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:36:06,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:36:06,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:36:06,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:06,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:36:06,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:36:06,617 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 11:36:06,924 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:36:06,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:36:06,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:36:06,947 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:36:06,947 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:36:06,949 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-07-20 11:36:07,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92825ed71/c0aea9e0548744fe874f3c21fd7075d3/FLAG9aad30342 [2020-07-20 11:36:07,678 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:36:07,679 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-07-20 11:36:07,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92825ed71/c0aea9e0548744fe874f3c21fd7075d3/FLAG9aad30342 [2020-07-20 11:36:07,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92825ed71/c0aea9e0548744fe874f3c21fd7075d3 [2020-07-20 11:36:07,873 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:36:07,876 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:36:07,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:36:07,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:36:07,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:36:07,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:36:07" (1/1) ... [2020-07-20 11:36:07,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@84390d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:07, skipping insertion in model container [2020-07-20 11:36:07,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:36:07" (1/1) ... [2020-07-20 11:36:07,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:36:07,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:36:08,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:36:08,394 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:36:08,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:36:08,624 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:36:08,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:08 WrapperNode [2020-07-20 11:36:08,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:36:08,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:36:08,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:36:08,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:36:08,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:08" (1/1) ... [2020-07-20 11:36:08,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:08" (1/1) ... [2020-07-20 11:36:08,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:08" (1/1) ... [2020-07-20 11:36:08,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:08" (1/1) ... [2020-07-20 11:36:08,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:08" (1/1) ... [2020-07-20 11:36:08,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:08" (1/1) ... [2020-07-20 11:36:08,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:08" (1/1) ... [2020-07-20 11:36:08,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:36:08,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:36:08,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:36:08,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:36:08,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:08" (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 [2020-07-20 11:36:08,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:36:08,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:36:08,806 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 11:36:08,806 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:36:08,806 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 11:36:08,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:36:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:36:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 11:36:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:36:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:36:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:36:10,058 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:36:10,059 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 11:36:10,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:36:10 BoogieIcfgContainer [2020-07-20 11:36:10,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:36:10,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:36:10,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:36:10,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:36:10,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:36:07" (1/3) ... [2020-07-20 11:36:10,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576c005a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:36:10, skipping insertion in model container [2020-07-20 11:36:10,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:08" (2/3) ... [2020-07-20 11:36:10,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576c005a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:36:10, skipping insertion in model container [2020-07-20 11:36:10,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:36:10" (3/3) ... [2020-07-20 11:36:10,082 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label42.c [2020-07-20 11:36:10,092 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:36:10,101 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:36:10,116 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:36:10,143 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:36:10,143 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:36:10,143 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:36:10,144 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:36:10,144 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:36:10,144 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:36:10,144 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:36:10,145 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:36:10,169 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 11:36:10,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-07-20 11:36:10,182 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:10,183 INFO L422 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, 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] [2020-07-20 11:36:10,184 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:10,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:10,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1304641474, now seen corresponding path program 1 times [2020-07-20 11:36:10,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:10,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19980646] [2020-07-20 11:36:10,201 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:10,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:36:10,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:10,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:36:10,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:10,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19980646] [2020-07-20 11:36:10,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:10,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:36:10,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819438020] [2020-07-20 11:36:10,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:36:10,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:10,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:36:10,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:10,466 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 11:36:11,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:11,462 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-20 11:36:11,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:36:11,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-07-20 11:36:11,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:11,493 INFO L225 Difference]: With dead ends: 619 [2020-07-20 11:36:11,494 INFO L226 Difference]: Without dead ends: 321 [2020-07-20 11:36:11,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:11,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-20 11:36:11,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-20 11:36:11,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-20 11:36:11,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-20 11:36:11,572 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 106 [2020-07-20 11:36:11,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:11,573 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-20 11:36:11,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:36:11,574 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-20 11:36:11,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-20 11:36:11,580 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:11,580 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-20 11:36:11,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:11,787 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:11,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:11,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1103480815, now seen corresponding path program 1 times [2020-07-20 11:36:11,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:11,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264395019] [2020-07-20 11:36:11,790 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:11,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:11,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:11,993 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:36:11,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:11,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264395019] [2020-07-20 11:36:11,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:11,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:36:11,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257311045] [2020-07-20 11:36:12,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:36:12,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:12,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:36:12,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:12,032 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-20 11:36:12,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:12,653 INFO L93 Difference]: Finished difference Result 782 states and 1068 transitions. [2020-07-20 11:36:12,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:36:12,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-07-20 11:36:12,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:12,661 INFO L225 Difference]: With dead ends: 782 [2020-07-20 11:36:12,662 INFO L226 Difference]: Without dead ends: 469 [2020-07-20 11:36:12,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:12,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-20 11:36:12,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2020-07-20 11:36:12,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-07-20 11:36:12,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 600 transitions. [2020-07-20 11:36:12,696 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 600 transitions. Word has length 115 [2020-07-20 11:36:12,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:12,697 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 600 transitions. [2020-07-20 11:36:12,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:36:12,698 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 600 transitions. [2020-07-20 11:36:12,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-20 11:36:12,702 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:12,702 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-20 11:36:12,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:12,917 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:12,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:12,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1785081447, now seen corresponding path program 1 times [2020-07-20 11:36:12,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:12,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52156528] [2020-07-20 11:36:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:12,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 11:36:13,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:13,060 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 11:36:13,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:13,163 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 11:36:13,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52156528] [2020-07-20 11:36:13,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 11:36:13,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-20 11:36:13,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999056135] [2020-07-20 11:36:13,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 11:36:13,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:13,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 11:36:13,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:13,166 INFO L87 Difference]: Start difference. First operand 469 states and 600 transitions. Second operand 4 states. [2020-07-20 11:36:13,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:13,863 INFO L93 Difference]: Finished difference Result 1386 states and 1800 transitions. [2020-07-20 11:36:13,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 11:36:13,865 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-07-20 11:36:13,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:13,871 INFO L225 Difference]: With dead ends: 1386 [2020-07-20 11:36:13,871 INFO L226 Difference]: Without dead ends: 923 [2020-07-20 11:36:13,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 246 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:13,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-07-20 11:36:13,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 923. [2020-07-20 11:36:13,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2020-07-20 11:36:13,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1177 transitions. [2020-07-20 11:36:13,921 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1177 transitions. Word has length 127 [2020-07-20 11:36:13,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:13,922 INFO L479 AbstractCegarLoop]: Abstraction has 923 states and 1177 transitions. [2020-07-20 11:36:13,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 11:36:13,922 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1177 transitions. [2020-07-20 11:36:13,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-20 11:36:13,930 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:13,931 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 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] [2020-07-20 11:36:14,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:14,146 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:14,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:14,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1788893684, now seen corresponding path program 1 times [2020-07-20 11:36:14,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:14,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988718607] [2020-07-20 11:36:14,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:14,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:14,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:14,317 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:36:14,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:14,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [988718607] [2020-07-20 11:36:14,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:14,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:36:14,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942088139] [2020-07-20 11:36:14,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:36:14,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:14,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:36:14,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:14,322 INFO L87 Difference]: Start difference. First operand 923 states and 1177 transitions. Second operand 3 states. [2020-07-20 11:36:15,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:15,013 INFO L93 Difference]: Finished difference Result 2130 states and 2809 transitions. [2020-07-20 11:36:15,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:36:15,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-07-20 11:36:15,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:15,024 INFO L225 Difference]: With dead ends: 2130 [2020-07-20 11:36:15,024 INFO L226 Difference]: Without dead ends: 1213 [2020-07-20 11:36:15,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:15,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2020-07-20 11:36:15,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1211. [2020-07-20 11:36:15,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-07-20 11:36:15,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1581 transitions. [2020-07-20 11:36:15,090 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1581 transitions. Word has length 135 [2020-07-20 11:36:15,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:15,092 INFO L479 AbstractCegarLoop]: Abstraction has 1211 states and 1581 transitions. [2020-07-20 11:36:15,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:36:15,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1581 transitions. [2020-07-20 11:36:15,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-20 11:36:15,102 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:15,102 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-20 11:36:15,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:15,317 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:15,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:15,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1477599978, now seen corresponding path program 1 times [2020-07-20 11:36:15,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:15,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331596175] [2020-07-20 11:36:15,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:15,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 11:36:15,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:15,470 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-20 11:36:15,470 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:15,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331596175] [2020-07-20 11:36:15,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:15,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:36:15,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740277696] [2020-07-20 11:36:15,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:36:15,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:15,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:36:15,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:15,473 INFO L87 Difference]: Start difference. First operand 1211 states and 1581 transitions. Second operand 5 states. [2020-07-20 11:36:16,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:16,323 INFO L93 Difference]: Finished difference Result 3660 states and 5049 transitions. [2020-07-20 11:36:16,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 11:36:16,324 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-07-20 11:36:16,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:16,344 INFO L225 Difference]: With dead ends: 3660 [2020-07-20 11:36:16,345 INFO L226 Difference]: Without dead ends: 2455 [2020-07-20 11:36:16,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:36:16,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2020-07-20 11:36:16,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 2423. [2020-07-20 11:36:16,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-07-20 11:36:16,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3127 transitions. [2020-07-20 11:36:16,447 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3127 transitions. Word has length 141 [2020-07-20 11:36:16,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:16,448 INFO L479 AbstractCegarLoop]: Abstraction has 2423 states and 3127 transitions. [2020-07-20 11:36:16,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:36:16,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3127 transitions. [2020-07-20 11:36:16,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-20 11:36:16,457 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:16,457 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-20 11:36:16,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:16,663 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:16,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:16,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1971043980, now seen corresponding path program 1 times [2020-07-20 11:36:16,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:16,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428037570] [2020-07-20 11:36:16,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:16,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:16,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:16,823 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 11:36:16,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:16,934 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 51 proven. 18 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 11:36:16,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428037570] [2020-07-20 11:36:16,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:16,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:36:16,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134021903] [2020-07-20 11:36:16,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:36:16,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:16,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:36:16,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:36:16,937 INFO L87 Difference]: Start difference. First operand 2423 states and 3127 transitions. Second operand 6 states. [2020-07-20 11:36:17,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:17,842 INFO L93 Difference]: Finished difference Result 5334 states and 6898 transitions. [2020-07-20 11:36:17,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:36:17,845 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-07-20 11:36:17,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:17,869 INFO L225 Difference]: With dead ends: 5334 [2020-07-20 11:36:17,869 INFO L226 Difference]: Without dead ends: 2608 [2020-07-20 11:36:17,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 310 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:36:17,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2020-07-20 11:36:17,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 2600. [2020-07-20 11:36:17,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2600 states. [2020-07-20 11:36:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 3065 transitions. [2020-07-20 11:36:17,962 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 3065 transitions. Word has length 157 [2020-07-20 11:36:17,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:17,963 INFO L479 AbstractCegarLoop]: Abstraction has 2600 states and 3065 transitions. [2020-07-20 11:36:17,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:36:17,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 3065 transitions. [2020-07-20 11:36:17,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-20 11:36:17,971 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:17,971 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-20 11:36:18,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:18,185 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:18,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:18,186 INFO L82 PathProgramCache]: Analyzing trace with hash -218912508, now seen corresponding path program 1 times [2020-07-20 11:36:18,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:18,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203105791] [2020-07-20 11:36:18,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:18,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:18,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:18,372 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:36:18,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:18,467 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:36:18,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203105791] [2020-07-20 11:36:18,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:18,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:36:18,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072102619] [2020-07-20 11:36:18,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:36:18,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:18,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:36:18,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:36:18,469 INFO L87 Difference]: Start difference. First operand 2600 states and 3065 transitions. Second operand 7 states. [2020-07-20 11:36:19,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:19,824 INFO L93 Difference]: Finished difference Result 6492 states and 7667 transitions. [2020-07-20 11:36:19,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 11:36:19,829 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-07-20 11:36:19,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:19,844 INFO L225 Difference]: With dead ends: 6492 [2020-07-20 11:36:19,844 INFO L226 Difference]: Without dead ends: 2721 [2020-07-20 11:36:19,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 317 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:36:19,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2020-07-20 11:36:19,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 2721. [2020-07-20 11:36:19,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2721 states. [2020-07-20 11:36:19,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3106 transitions. [2020-07-20 11:36:19,932 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3106 transitions. Word has length 161 [2020-07-20 11:36:19,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:19,932 INFO L479 AbstractCegarLoop]: Abstraction has 2721 states and 3106 transitions. [2020-07-20 11:36:19,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:36:19,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3106 transitions. [2020-07-20 11:36:19,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-20 11:36:19,941 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:19,941 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:20,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:20,155 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:20,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:20,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1598036036, now seen corresponding path program 1 times [2020-07-20 11:36:20,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:20,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580595943] [2020-07-20 11:36:20,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:20,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:36:20,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:20,330 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 67 proven. 15 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-20 11:36:20,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 80 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-20 11:36:20,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580595943] [2020-07-20 11:36:20,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:20,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-20 11:36:20,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495437467] [2020-07-20 11:36:20,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:36:20,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:20,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:36:20,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:20,411 INFO L87 Difference]: Start difference. First operand 2721 states and 3106 transitions. Second operand 5 states. [2020-07-20 11:36:21,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:21,091 INFO L93 Difference]: Finished difference Result 5364 states and 6318 transitions. [2020-07-20 11:36:21,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 11:36:21,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-07-20 11:36:21,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:21,105 INFO L225 Difference]: With dead ends: 5364 [2020-07-20 11:36:21,105 INFO L226 Difference]: Without dead ends: 2793 [2020-07-20 11:36:21,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 330 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:36:21,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2020-07-20 11:36:21,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2577. [2020-07-20 11:36:21,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2577 states. [2020-07-20 11:36:21,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2577 states to 2577 states and 2819 transitions. [2020-07-20 11:36:21,184 INFO L78 Accepts]: Start accepts. Automaton has 2577 states and 2819 transitions. Word has length 168 [2020-07-20 11:36:21,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:21,185 INFO L479 AbstractCegarLoop]: Abstraction has 2577 states and 2819 transitions. [2020-07-20 11:36:21,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:36:21,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2577 states and 2819 transitions. [2020-07-20 11:36:21,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-07-20 11:36:21,194 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:21,195 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:21,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:21,411 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:21,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:21,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1286736905, now seen corresponding path program 1 times [2020-07-20 11:36:21,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:21,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112032947] [2020-07-20 11:36:21,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:21,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:21,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:21,604 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-20 11:36:21,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:21,712 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-20 11:36:21,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112032947] [2020-07-20 11:36:21,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:21,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:36:21,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943735367] [2020-07-20 11:36:21,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:36:21,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:21,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:36:21,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:36:21,717 INFO L87 Difference]: Start difference. First operand 2577 states and 2819 transitions. Second operand 7 states. [2020-07-20 11:36:22,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:22,922 INFO L93 Difference]: Finished difference Result 4858 states and 5317 transitions. [2020-07-20 11:36:22,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 11:36:22,923 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 188 [2020-07-20 11:36:22,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:22,933 INFO L225 Difference]: With dead ends: 4858 [2020-07-20 11:36:22,933 INFO L226 Difference]: Without dead ends: 2431 [2020-07-20 11:36:22,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 374 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-20 11:36:22,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2020-07-20 11:36:22,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2415. [2020-07-20 11:36:22,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2415 states. [2020-07-20 11:36:22,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 2564 transitions. [2020-07-20 11:36:22,993 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 2564 transitions. Word has length 188 [2020-07-20 11:36:22,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:22,994 INFO L479 AbstractCegarLoop]: Abstraction has 2415 states and 2564 transitions. [2020-07-20 11:36:22,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:36:22,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 2564 transitions. [2020-07-20 11:36:23,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-20 11:36:23,002 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:23,002 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-20 11:36:23,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:23,217 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:23,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:23,218 INFO L82 PathProgramCache]: Analyzing trace with hash -44633951, now seen corresponding path program 1 times [2020-07-20 11:36:23,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:23,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991854985] [2020-07-20 11:36:23,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:23,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:23,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:23,408 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:36:23,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:23,496 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:36:23,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991854985] [2020-07-20 11:36:23,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:23,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:36:23,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844539966] [2020-07-20 11:36:23,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:36:23,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:23,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:36:23,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:36:23,498 INFO L87 Difference]: Start difference. First operand 2415 states and 2564 transitions. Second operand 6 states. [2020-07-20 11:36:23,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:23,907 INFO L93 Difference]: Finished difference Result 4666 states and 4959 transitions. [2020-07-20 11:36:23,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 11:36:23,908 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2020-07-20 11:36:23,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:23,916 INFO L225 Difference]: With dead ends: 4666 [2020-07-20 11:36:23,916 INFO L226 Difference]: Without dead ends: 2401 [2020-07-20 11:36:23,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 384 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:36:23,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2020-07-20 11:36:23,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 2257. [2020-07-20 11:36:23,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2257 states. [2020-07-20 11:36:23,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2257 states to 2257 states and 2375 transitions. [2020-07-20 11:36:23,969 INFO L78 Accepts]: Start accepts. Automaton has 2257 states and 2375 transitions. Word has length 195 [2020-07-20 11:36:23,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:23,969 INFO L479 AbstractCegarLoop]: Abstraction has 2257 states and 2375 transitions. [2020-07-20 11:36:23,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:36:23,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2257 states and 2375 transitions. [2020-07-20 11:36:23,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-07-20 11:36:23,978 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:23,978 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1] [2020-07-20 11:36:24,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:24,194 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:24,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:24,194 INFO L82 PathProgramCache]: Analyzing trace with hash 695276175, now seen corresponding path program 1 times [2020-07-20 11:36:24,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:24,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295599272] [2020-07-20 11:36:24,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:24,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:36:24,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:24,401 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-07-20 11:36:24,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:24,492 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 137 proven. 54 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-20 11:36:24,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295599272] [2020-07-20 11:36:24,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:24,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:36:24,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380327484] [2020-07-20 11:36:24,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:36:24,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:24,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:36:24,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:36:24,498 INFO L87 Difference]: Start difference. First operand 2257 states and 2375 transitions. Second operand 7 states. [2020-07-20 11:36:25,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:25,520 INFO L93 Difference]: Finished difference Result 4794 states and 5045 transitions. [2020-07-20 11:36:25,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:36:25,521 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2020-07-20 11:36:25,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:25,522 INFO L225 Difference]: With dead ends: 4794 [2020-07-20 11:36:25,522 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:36:25,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:36:25,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:36:25,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:36:25,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:36:25,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:36:25,543 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 236 [2020-07-20 11:36:25,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:25,544 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:36:25,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:36:25,544 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:36:25,544 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:36:25,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:25,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:36:26,375 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 80 [2020-07-20 11:36:28,133 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 126 DAG size of output: 86 [2020-07-20 11:36:28,702 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2020-07-20 11:36:29,237 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2020-07-20 11:36:29,241 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:36:29,242 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 11:36:29,242 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:36:29,242 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,242 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,242 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,242 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,242 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,242 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 11:36:29,243 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 11:36:29,243 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 11:36:29,243 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 11:36:29,243 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 11:36:29,243 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 11:36:29,243 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 11:36:29,244 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 11:36:29,244 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 11:36:29,244 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 11:36:29,244 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 11:36:29,244 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 11:36:29,244 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 11:36:29,244 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,244 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,245 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,245 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,245 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 11:36:29,245 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,245 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 11:36:29,246 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 11:36:29,246 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 11:36:29,246 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 11:36:29,246 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 11:36:29,246 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 11:36:29,247 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 11:36:29,247 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 11:36:29,248 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 11:36:29,248 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 11:36:29,248 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 11:36:29,248 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 11:36:29,248 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 11:36:29,248 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 11:36:29,248 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 11:36:29,249 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,249 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,249 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,249 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,249 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,249 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 472) no Hoare annotation was computed. [2020-07-20 11:36:29,249 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 11:36:29,250 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 11:36:29,250 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 11:36:29,250 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 11:36:29,250 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 11:36:29,250 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 11:36:29,250 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 11:36:29,250 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 11:36:29,251 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 11:36:29,251 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 11:36:29,251 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 11:36:29,251 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,251 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,251 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,251 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,251 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,252 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 11:36:29,252 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 11:36:29,252 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 11:36:29,252 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 11:36:29,252 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 11:36:29,252 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 11:36:29,252 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 11:36:29,252 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 11:36:29,253 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 11:36:29,253 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 11:36:29,253 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 11:36:29,253 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 11:36:29,253 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 11:36:29,253 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,253 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,253 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,254 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,254 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,254 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 11:36:29,254 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 11:36:29,254 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 11:36:29,254 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 11:36:29,254 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 11:36:29,255 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 11:36:29,255 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 11:36:29,255 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 11:36:29,255 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 11:36:29,255 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 11:36:29,255 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 11:36:29,255 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 11:36:29,255 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 11:36:29,256 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 11:36:29,256 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 11:36:29,256 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 11:36:29,256 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,256 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,256 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,256 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,256 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 11:36:29,257 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,257 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 11:36:29,257 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,257 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 11:36:29,257 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 11:36:29,257 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 11:36:29,257 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,257 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,258 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 11:36:29,258 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 11:36:29,258 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 11:36:29,258 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 11:36:29,258 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 11:36:29,258 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 11:36:29,258 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 11:36:29,258 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 11:36:29,259 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 11:36:29,259 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 11:36:29,259 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 11:36:29,259 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,259 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,259 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,259 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,259 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,260 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,260 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 11:36:29,260 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 11:36:29,260 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 11:36:29,260 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 11:36:29,260 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 11:36:29,260 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 11:36:29,260 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 11:36:29,261 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 11:36:29,261 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 11:36:29,261 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 11:36:29,261 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 11:36:29,261 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,261 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,261 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,261 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,262 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,262 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,262 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 11:36:29,262 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 11:36:29,262 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 11:36:29,262 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 11:36:29,262 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 11:36:29,262 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 11:36:29,263 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 11:36:29,263 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 11:36:29,263 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 11:36:29,263 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 11:36:29,263 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 11:36:29,263 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 11:36:29,263 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 11:36:29,263 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 11:36:29,264 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,264 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,264 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,265 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse8 (<= ~a28~0 |old(~a28~0)|)) (.cse9 (<= ~a17~0 8)) (.cse15 (<= 8 ~a17~0)) (.cse3 (<= 10 ~a28~0)) (.cse10 (= ~a19~0 |old(~a19~0)|)) (.cse24 (= 1 ~a25~0)) (.cse4 (<= ~a11~0 0))) (let ((.cse22 (not (<= |old(~a28~0)| 8))) (.cse14 (or .cse4 (< 0 |old(~a11~0)|))) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse21 (<= ~a17~0 |old(~a17~0)|)) (.cse5 (not (<= 9 |old(~a28~0)|))) (.cse16 (< ~a28~0 10)) (.cse17 (<= 9 ~a28~0)) (.cse11 (= ~a25~0 |old(~a25~0)|)) (.cse20 (not (< |old(~a28~0)| 10))) (.cse1 (not (<= |old(~a17~0)| 7))) (.cse7 (not (= 1 |old(~a19~0)|))) (.cse12 (not (<= |old(~a28~0)| 7))) (.cse23 (not (= 1 |old(~a25~0)|))) (.cse18 (not (<= 8 |old(~a17~0)|))) (.cse19 (not (<= |old(~a19~0)| 0))) (.cse2 (not (<= 10 |old(~a28~0)|))) (.cse25 (and .cse4 .cse8 .cse9 .cse15 .cse3 .cse10 .cse24)) (.cse13 (not (<= |old(~a17~0)| 8))) (.cse6 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse1 .cse6) (or .cse7 (and .cse4 .cse8 .cse9 .cse10 .cse11) .cse12 .cse13 .cse6) (or (and .cse14 .cse9 .cse15 .cse10 .cse16 .cse17 .cse11) .cse5 .cse18 .cse19 .cse13 .cse20) (or .cse0 .cse5 (and .cse21 .cse8 .cse10 .cse17) .cse1) (or .cse22 .cse18 .cse19 (and .cse8 .cse14 .cse9 .cse15 .cse10 .cse11) .cse13) (or .cse7 .cse4 .cse5 .cse13 .cse6 .cse20) (or .cse7 .cse22 .cse18 .cse23 (and .cse4 .cse9 .cse15 (<= ~a28~0 8) .cse10 .cse24) .cse13 .cse6) (or .cse7 .cse18 .cse23 .cse25 .cse2 .cse13 .cse6) (or .cse7 (and .cse14 (<= ~a28~0 10) .cse3 .cse10) .cse0 .cse2) (or .cse7 .cse4 .cse1 .cse6) (or .cse7 .cse1 (and .cse21 .cse8 .cse10)) (or .cse7 .cse5 .cse18 (and .cse9 .cse15 .cse10 .cse16 .cse17 .cse11) .cse13 .cse20) (or .cse7 .cse1 .cse2 .cse3) (or .cse7 (and .cse8 .cse9 .cse15 .cse10 .cse24) .cse12 .cse18 .cse23 .cse13) (or .cse23 .cse18 .cse19 .cse2 .cse25 .cse13 .cse6)))) [2020-07-20 11:36:29,265 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,265 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,265 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,265 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 11:36:29,265 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 11:36:29,265 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 11:36:29,265 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 11:36:29,265 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 11:36:29,266 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 11:36:29,266 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 11:36:29,266 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 11:36:29,266 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 11:36:29,266 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 11:36:29,266 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 11:36:29,266 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 11:36:29,266 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 11:36:29,266 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,267 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,267 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,267 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,267 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,267 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,267 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 11:36:29,267 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 11:36:29,267 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 11:36:29,267 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 11:36:29,268 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 11:36:29,268 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 11:36:29,268 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 11:36:29,268 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 11:36:29,268 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 11:36:29,268 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 11:36:29,268 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 11:36:29,268 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 11:36:29,269 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 11:36:29,269 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 11:36:29,269 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 11:36:29,269 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 11:36:29,269 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,269 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,269 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,269 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,269 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,270 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 11:36:29,270 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 11:36:29,270 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 11:36:29,270 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 11:36:29,270 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 11:36:29,270 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 11:36:29,270 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 11:36:29,270 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 11:36:29,270 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 11:36:29,271 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 11:36:29,271 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 11:36:29,271 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 11:36:29,271 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 11:36:29,271 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 11:36:29,271 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 11:36:29,271 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 11:36:29,271 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 11:36:29,272 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 11:36:29,272 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 11:36:29,272 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:36:29,272 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a28~0 7)) [2020-07-20 11:36:29,272 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:36:29,272 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:36:29,272 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-20 11:36:29,273 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse6 (<= 8 ~a17~0)) (.cse2 (= 1 ~a19~0)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (<= ~a11~0 0)) (.cse13 (<= ~a28~0 7))) (let ((.cse3 (<= ~a17~0 7)) (.cse4 (< 7 |old(~a17~0)|)) (.cse9 (<= 9 ~a28~0)) (.cse0 (or (and .cse2 .cse5 .cse11 .cse6 .cse13) (and .cse2 .cse5 .cse11 (<= ~a28~0 |old(~a28~0)|) (<= ~a19~0 |old(~a19~0)|) .cse13))) (.cse1 (= 1 ~a25~0)) (.cse10 (<= ~a28~0 10)) (.cse7 (not (= 1 |old(~a25~0)|))) (.cse8 (< ~a28~0 10)) (.cse12 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (not (<= |old(~a28~0)| 7)) (and .cse2 .cse5 .cse6 .cse7 .cse8 .cse9) (not (<= |old(~a11~0)| 0)) (and .cse10 .cse3 .cse4 .cse9) (and .cse5 .cse11 .cse6 .cse7 .cse12 .cse1) (and .cse0 (= ~a25~0 |old(~a25~0)|)) (and .cse2 .cse5 .cse11 .cse6 .cse7 .cse1) (and .cse2 .cse5 .cse6 .cse7 .cse13 .cse1) (not (<= |old(~a17~0)| 8)) (and .cse2 .cse10 (<= 10 ~a28~0)) (and .cse5 .cse6 .cse7 .cse8 .cse12)))) [2020-07-20 11:36:29,273 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 11:36:29,273 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 11:36:29,274 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse6 (<= 8 ~a17~0)) (.cse2 (= 1 ~a19~0)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (<= ~a11~0 0)) (.cse13 (<= ~a28~0 7))) (let ((.cse3 (<= ~a17~0 7)) (.cse4 (< 7 |old(~a17~0)|)) (.cse9 (<= 9 ~a28~0)) (.cse0 (or (and .cse2 .cse5 .cse11 .cse6 .cse13) (and .cse2 .cse5 .cse11 (<= ~a28~0 |old(~a28~0)|) (<= ~a19~0 |old(~a19~0)|) .cse13))) (.cse1 (= 1 ~a25~0)) (.cse10 (<= ~a28~0 10)) (.cse7 (not (= 1 |old(~a25~0)|))) (.cse8 (< ~a28~0 10)) (.cse12 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (not (<= |old(~a28~0)| 7)) (and .cse2 .cse5 .cse6 .cse7 .cse8 .cse9) (not (<= |old(~a11~0)| 0)) (and .cse10 .cse3 .cse4 .cse9) (and .cse5 .cse11 .cse6 .cse7 .cse12 .cse1) (and .cse0 (= ~a25~0 |old(~a25~0)|)) (and .cse2 .cse5 .cse11 .cse6 .cse7 .cse1) (and .cse2 .cse5 .cse6 .cse7 .cse13 .cse1) (not (<= |old(~a17~0)| 8)) (and .cse2 .cse10 (<= 10 ~a28~0)) (and .cse5 .cse6 .cse7 .cse8 .cse12)))) [2020-07-20 11:36:29,274 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 11:36:29,274 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 11:36:29,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:36:29 BoogieIcfgContainer [2020-07-20 11:36:29,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:36:29,302 INFO L168 Benchmark]: Toolchain (without parser) took 21427.44 ms. Allocated memory was 144.7 MB in the beginning and 497.0 MB in the end (delta: 352.3 MB). Free memory was 101.7 MB in the beginning and 91.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 368.3 MB. Max. memory is 7.1 GB. [2020-07-20 11:36:29,303 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 11:36:29,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.40 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 101.3 MB in the beginning and 172.1 MB in the end (delta: -70.8 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. [2020-07-20 11:36:29,304 INFO L168 Benchmark]: Boogie Preprocessor took 124.77 ms. Allocated memory is still 204.5 MB. Free memory was 172.1 MB in the beginning and 167.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 11:36:29,305 INFO L168 Benchmark]: RCFGBuilder took 1321.75 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 167.1 MB in the beginning and 182.6 MB in the end (delta: -15.5 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. [2020-07-20 11:36:29,306 INFO L168 Benchmark]: TraceAbstraction took 19226.22 ms. Allocated memory was 235.4 MB in the beginning and 497.0 MB in the end (delta: 261.6 MB). Free memory was 182.6 MB in the beginning and 91.9 MB in the end (delta: 90.7 MB). Peak memory consumption was 358.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:36:29,309 INFO L336 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 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.40 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 101.3 MB in the beginning and 172.1 MB in the end (delta: -70.8 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.77 ms. Allocated memory is still 204.5 MB. Free memory was 172.1 MB in the beginning and 167.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1321.75 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 167.1 MB in the beginning and 182.6 MB in the end (delta: -15.5 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19226.22 ms. Allocated memory was 235.4 MB in the beginning and 497.0 MB in the end (delta: 261.6 MB). Free memory was 182.6 MB in the beginning and 91.9 MB in the end (delta: 90.7 MB). Peak memory consumption was 358.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 472]: 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: 606]: Loop Invariant Derived loop invariant: ((((((((((((!(1 == \old(a19)) || ((((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && 8 <= a17) && a28 <= 7) || (((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= \old(a28)) && a19 <= \old(a19)) && a28 <= 7)) && 1 == a25)) || ((1 == a19 && a17 <= 7) && 7 < \old(a17))) || !(\old(a28) <= 7)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && !(1 == \old(a25))) && a28 < 10) && 9 <= a28)) || !(\old(a11) <= 0)) || (((a28 <= 10 && a17 <= 7) && 7 < \old(a17)) && 9 <= a28)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && !(1 == \old(a25))) && a19 <= 0) && 1 == a25)) || ((((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && 8 <= a17) && a28 <= 7) || (((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= \old(a28)) && a19 <= \old(a19)) && a28 <= 7)) && a25 == \old(a25))) || (((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && 8 <= a17) && !(1 == \old(a25))) && 1 == a25)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && !(1 == \old(a25))) && a28 <= 7) && 1 == a25)) || !(\old(a17) <= 8)) || ((1 == a19 && a28 <= 10) && 10 <= a28)) || ((((a17 <= \old(a17) && 8 <= a17) && !(1 == \old(a25))) && a28 < 10) && a19 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.6s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1024 SDtfs, 4663 SDslu, 550 SDs, 0 SdLazy, 6677 SolverSat, 1013 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2979 GetRequests, 2916 SyntacticMatches, 13 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2721occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 420 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 149 PreInvPairs, 203 NumberOfFragments, 1024 HoareAnnotationTreeSize, 149 FomulaSimplifications, 2471 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2112 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1729 NumberOfCodeBlocks, 1729 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2943 ConstructedInterpolants, 0 QuantifiedInterpolants, 949775 SizeOfPredicates, 15 NumberOfNonLiveVariables, 4667 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 18 InterpolantComputations, 5 PerfectInterpolantSequences, 1580/1698 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...