/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_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:28:50,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:28:50,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:28:50,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:28:50,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:28:50,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:28:50,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:28:50,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:28:50,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:28:50,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:28:50,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:28:50,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:28:50,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:28:50,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:28:50,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:28:50,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:28:50,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:28:50,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:28:50,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:28:50,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:28:50,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:28:50,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:28:50,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:28:50,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:28:50,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:28:50,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:28:50,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:28:50,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:28:50,987 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 [2020-07-21 11:28:51,013 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:28:51,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:28:51,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:28:51,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:28:51,015 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:28:51,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:28:51,015 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:28:51,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:28:51,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:28:51,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:28:51,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:28:51,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:28:51,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:28:51,018 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:28:51,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:28:51,019 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:28:51,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:28:51,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:28:51,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:28:51,019 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:28:51,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:28:51,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:28:51,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:28:51,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:28:51,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:28:51,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:28:51,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:51,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:28:51,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:28:51,022 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 [2020-07-21 11:28:51,325 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:28:51,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:28:51,347 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:28:51,349 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:28:51,349 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:28:51,350 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label56.c [2020-07-21 11:28:51,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d04ce5357/929e722eafcf4e618897c0172940946a/FLAG35ed2fb19 [2020-07-21 11:28:52,004 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:28:52,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label56.c [2020-07-21 11:28:52,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d04ce5357/929e722eafcf4e618897c0172940946a/FLAG35ed2fb19 [2020-07-21 11:28:52,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d04ce5357/929e722eafcf4e618897c0172940946a [2020-07-21 11:28:52,291 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:28:52,294 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:28:52,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:28:52,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:28:52,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:28:52,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:28:52" (1/1) ... [2020-07-21 11:28:52,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7409260a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:52, skipping insertion in model container [2020-07-21 11:28:52,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:28:52" (1/1) ... [2020-07-21 11:28:52,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:28:52,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:28:52,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:28:52,907 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:28:53,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:28:53,071 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:28:53,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:53 WrapperNode [2020-07-21 11:28:53,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:28:53,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:28:53,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:28:53,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:28:53,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:53" (1/1) ... [2020-07-21 11:28:53,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:53" (1/1) ... [2020-07-21 11:28:53,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:53" (1/1) ... [2020-07-21 11:28:53,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:53" (1/1) ... [2020-07-21 11:28:53,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:53" (1/1) ... [2020-07-21 11:28:53,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:53" (1/1) ... [2020-07-21 11:28:53,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:53" (1/1) ... [2020-07-21 11:28:53,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:28:53,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:28:53,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:28:53,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:28:53,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:53" (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 [2020-07-21 11:28:53,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:28:53,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:28:53,315 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:28:53,315 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:28:53,316 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:28:53,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:28:53,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:28:53,317 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:28:53,318 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:28:53,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:28:53,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:28:54,651 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:28:54,652 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:28:54,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:28:54 BoogieIcfgContainer [2020-07-21 11:28:54,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:28:54,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:28:54,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:28:54,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:28:54,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:28:52" (1/3) ... [2020-07-21 11:28:54,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be368df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:28:54, skipping insertion in model container [2020-07-21 11:28:54,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:53" (2/3) ... [2020-07-21 11:28:54,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be368df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:28:54, skipping insertion in model container [2020-07-21 11:28:54,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:28:54" (3/3) ... [2020-07-21 11:28:54,667 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label56.c [2020-07-21 11:28:54,678 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:28:54,686 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:28:54,700 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:28:54,725 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:28:54,726 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:28:54,726 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:28:54,726 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:28:54,726 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:28:54,727 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:28:54,727 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:28:54,727 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:28:54,750 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 11:28:54,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 11:28:54,764 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:54,765 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:54,766 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:54,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:54,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1821084561, now seen corresponding path program 1 times [2020-07-21 11:28:54,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:54,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287918789] [2020-07-21 11:28:54,782 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 [2020-07-21 11:28:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:54,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:28:54,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:55,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:28:55,076 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:55,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287918789] [2020-07-21 11:28:55,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:55,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:28:55,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456605200] [2020-07-21 11:28:55,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:28:55,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:55,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:28:55,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:55,103 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 11:28:56,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:56,107 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-21 11:28:56,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:28:56,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-07-21 11:28:56,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:56,128 INFO L225 Difference]: With dead ends: 619 [2020-07-21 11:28:56,128 INFO L226 Difference]: Without dead ends: 321 [2020-07-21 11:28:56,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:56,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-21 11:28:56,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-21 11:28:56,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-21 11:28:56,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-21 11:28:56,208 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 129 [2020-07-21 11:28:56,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:56,209 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-21 11:28:56,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:28:56,210 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-21 11:28:56,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-21 11:28:56,214 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:56,215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:56,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:56,423 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:56,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:56,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1159828288, now seen corresponding path program 1 times [2020-07-21 11:28:56,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:56,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139391276] [2020-07-21 11:28:56,425 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 [2020-07-21 11:28:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:56,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 11:28:56,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:56,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 11:28:56,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:56,792 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 11:28:56,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139391276] [2020-07-21 11:28:56,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 11:28:56,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 11:28:56,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542431291] [2020-07-21 11:28:56,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 11:28:56,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:56,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 11:28:56,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:28:56,796 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 4 states. [2020-07-21 11:28:57,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:57,616 INFO L93 Difference]: Finished difference Result 941 states and 1256 transitions. [2020-07-21 11:28:57,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 11:28:57,617 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2020-07-21 11:28:57,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:57,633 INFO L225 Difference]: With dead ends: 941 [2020-07-21 11:28:57,633 INFO L226 Difference]: Without dead ends: 628 [2020-07-21 11:28:57,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 268 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:28:57,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-07-21 11:28:57,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2020-07-21 11:28:57,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-07-21 11:28:57,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 815 transitions. [2020-07-21 11:28:57,683 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 815 transitions. Word has length 138 [2020-07-21 11:28:57,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:57,684 INFO L479 AbstractCegarLoop]: Abstraction has 628 states and 815 transitions. [2020-07-21 11:28:57,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 11:28:57,684 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 815 transitions. [2020-07-21 11:28:57,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 11:28:57,689 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:57,689 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:57,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:57,903 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:57,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:57,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1202576379, now seen corresponding path program 1 times [2020-07-21 11:28:57,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:57,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546830245] [2020-07-21 11:28:57,906 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 [2020-07-21 11:28:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:58,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:58,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 11:28:58,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:58,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546830245] [2020-07-21 11:28:58,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:58,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:28:58,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960056429] [2020-07-21 11:28:58,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:28:58,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:58,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:28:58,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:58,075 INFO L87 Difference]: Start difference. First operand 628 states and 815 transitions. Second operand 3 states. [2020-07-21 11:28:58,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:58,869 INFO L93 Difference]: Finished difference Result 1543 states and 2083 transitions. [2020-07-21 11:28:58,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:28:58,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2020-07-21 11:28:58,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:58,883 INFO L225 Difference]: With dead ends: 1543 [2020-07-21 11:28:58,885 INFO L226 Difference]: Without dead ends: 921 [2020-07-21 11:28:58,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:58,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-07-21 11:28:58,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 919. [2020-07-21 11:28:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-07-21 11:28:58,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1209 transitions. [2020-07-21 11:28:58,950 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1209 transitions. Word has length 146 [2020-07-21 11:28:58,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:58,952 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1209 transitions. [2020-07-21 11:28:58,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:28:58,952 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1209 transitions. [2020-07-21 11:28:58,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-21 11:28:58,960 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:58,961 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:59,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:59,173 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:59,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:59,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1262915279, now seen corresponding path program 1 times [2020-07-21 11:28:59,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:59,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [358216021] [2020-07-21 11:28:59,176 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 [2020-07-21 11:28:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:59,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 11:28:59,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-21 11:28:59,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:59,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [358216021] [2020-07-21 11:28:59,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:59,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:28:59,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49834176] [2020-07-21 11:28:59,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:28:59,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:59,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:28:59,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:28:59,310 INFO L87 Difference]: Start difference. First operand 919 states and 1209 transitions. Second operand 5 states. [2020-07-21 11:29:00,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:00,279 INFO L93 Difference]: Finished difference Result 2770 states and 3826 transitions. [2020-07-21 11:29:00,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 11:29:00,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-07-21 11:29:00,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:00,294 INFO L225 Difference]: With dead ends: 2770 [2020-07-21 11:29:00,295 INFO L226 Difference]: Without dead ends: 1857 [2020-07-21 11:29:00,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:29:00,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2020-07-21 11:29:00,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1829. [2020-07-21 11:29:00,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1829 states. [2020-07-21 11:29:00,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2367 transitions. [2020-07-21 11:29:00,389 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2367 transitions. Word has length 152 [2020-07-21 11:29:00,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:00,389 INFO L479 AbstractCegarLoop]: Abstraction has 1829 states and 2367 transitions. [2020-07-21 11:29:00,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:29:00,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2367 transitions. [2020-07-21 11:29:00,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-21 11:29:00,399 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:00,400 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:29:00,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:00,613 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:00,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:00,614 INFO L82 PathProgramCache]: Analyzing trace with hash -989124760, now seen corresponding path program 1 times [2020-07-21 11:29:00,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:00,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119835099] [2020-07-21 11:29:00,615 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 [2020-07-21 11:29:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:00,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:00,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:00,826 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:00,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:00,916 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:00,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119835099] [2020-07-21 11:29:00,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:00,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:29:00,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385992539] [2020-07-21 11:29:00,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:29:00,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:00,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:29:00,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:29:00,919 INFO L87 Difference]: Start difference. First operand 1829 states and 2367 transitions. Second operand 6 states. [2020-07-21 11:29:01,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:01,980 INFO L93 Difference]: Finished difference Result 4140 states and 5483 transitions. [2020-07-21 11:29:01,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:29:01,981 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-07-21 11:29:01,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:01,995 INFO L225 Difference]: With dead ends: 4140 [2020-07-21 11:29:01,995 INFO L226 Difference]: Without dead ends: 2317 [2020-07-21 11:29:02,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 314 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:29:02,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2020-07-21 11:29:02,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 2305. [2020-07-21 11:29:02,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2020-07-21 11:29:02,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 3033 transitions. [2020-07-21 11:29:02,073 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 3033 transitions. Word has length 160 [2020-07-21 11:29:02,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:02,074 INFO L479 AbstractCegarLoop]: Abstraction has 2305 states and 3033 transitions. [2020-07-21 11:29:02,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:29:02,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 3033 transitions. [2020-07-21 11:29:02,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-21 11:29:02,082 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:02,082 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:29:02,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:02,297 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:02,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:02,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1429632528, now seen corresponding path program 1 times [2020-07-21 11:29:02,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:02,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11011719] [2020-07-21 11:29:02,299 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 [2020-07-21 11:29:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:02,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:02,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:02,441 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:29:02,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:02,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11011719] [2020-07-21 11:29:02,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:02,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:29:02,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925722939] [2020-07-21 11:29:02,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:29:02,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:02,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:29:02,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:02,444 INFO L87 Difference]: Start difference. First operand 2305 states and 3033 transitions. Second operand 3 states. [2020-07-21 11:29:03,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:03,153 INFO L93 Difference]: Finished difference Result 5910 states and 7904 transitions. [2020-07-21 11:29:03,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:29:03,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-07-21 11:29:03,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:03,177 INFO L225 Difference]: With dead ends: 5910 [2020-07-21 11:29:03,177 INFO L226 Difference]: Without dead ends: 2285 [2020-07-21 11:29:03,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:03,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2285 states. [2020-07-21 11:29:03,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2285 to 2285. [2020-07-21 11:29:03,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2285 states. [2020-07-21 11:29:03,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 2909 transitions. [2020-07-21 11:29:03,253 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 2909 transitions. Word has length 164 [2020-07-21 11:29:03,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:03,254 INFO L479 AbstractCegarLoop]: Abstraction has 2285 states and 2909 transitions. [2020-07-21 11:29:03,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:29:03,254 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 2909 transitions. [2020-07-21 11:29:03,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-21 11:29:03,263 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:03,263 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-21 11:29:03,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:03,477 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:03,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:03,477 INFO L82 PathProgramCache]: Analyzing trace with hash 637450697, now seen corresponding path program 1 times [2020-07-21 11:29:03,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:03,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1989718747] [2020-07-21 11:29:03,479 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 [2020-07-21 11:29:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:03,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:03,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:03,618 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 11:29:03,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:03,716 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 11:29:03,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1989718747] [2020-07-21 11:29:03,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:03,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:29:03,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579234588] [2020-07-21 11:29:03,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:29:03,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:03,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:29:03,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:29:03,719 INFO L87 Difference]: Start difference. First operand 2285 states and 2909 transitions. Second operand 6 states. [2020-07-21 11:29:04,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:04,849 INFO L93 Difference]: Finished difference Result 5192 states and 6717 transitions. [2020-07-21 11:29:04,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:29:04,849 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-07-21 11:29:04,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:04,864 INFO L225 Difference]: With dead ends: 5192 [2020-07-21 11:29:04,864 INFO L226 Difference]: Without dead ends: 2913 [2020-07-21 11:29:04,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 360 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:29:04,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2020-07-21 11:29:04,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2899. [2020-07-21 11:29:04,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2899 states. [2020-07-21 11:29:04,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2899 states to 2899 states and 3504 transitions. [2020-07-21 11:29:04,949 INFO L78 Accepts]: Start accepts. Automaton has 2899 states and 3504 transitions. Word has length 182 [2020-07-21 11:29:04,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:04,950 INFO L479 AbstractCegarLoop]: Abstraction has 2899 states and 3504 transitions. [2020-07-21 11:29:04,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:29:04,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2899 states and 3504 transitions. [2020-07-21 11:29:04,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-07-21 11:29:04,960 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:04,960 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:29:05,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:05,175 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:05,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:05,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1052030863, now seen corresponding path program 1 times [2020-07-21 11:29:05,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:05,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159435336] [2020-07-21 11:29:05,176 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 [2020-07-21 11:29:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:05,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:05,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:05,408 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 11:29:05,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:05,584 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 11:29:05,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159435336] [2020-07-21 11:29:05,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:05,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:29:05,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550399297] [2020-07-21 11:29:05,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:29:05,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:05,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:29:05,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:29:05,588 INFO L87 Difference]: Start difference. First operand 2899 states and 3504 transitions. Second operand 7 states. [2020-07-21 11:29:06,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:06,733 INFO L93 Difference]: Finished difference Result 7468 states and 9061 transitions. [2020-07-21 11:29:06,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:29:06,733 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 227 [2020-07-21 11:29:06,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:06,752 INFO L225 Difference]: With dead ends: 7468 [2020-07-21 11:29:06,752 INFO L226 Difference]: Without dead ends: 4574 [2020-07-21 11:29:06,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 449 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:29:06,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4574 states. [2020-07-21 11:29:06,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4574 to 4541. [2020-07-21 11:29:06,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4541 states. [2020-07-21 11:29:06,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4541 states to 4541 states and 5450 transitions. [2020-07-21 11:29:06,889 INFO L78 Accepts]: Start accepts. Automaton has 4541 states and 5450 transitions. Word has length 227 [2020-07-21 11:29:06,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:06,889 INFO L479 AbstractCegarLoop]: Abstraction has 4541 states and 5450 transitions. [2020-07-21 11:29:06,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:29:06,890 INFO L276 IsEmpty]: Start isEmpty. Operand 4541 states and 5450 transitions. [2020-07-21 11:29:06,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-21 11:29:06,968 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:06,969 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 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] [2020-07-21 11:29:07,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:07,170 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:07,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:07,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1880332291, now seen corresponding path program 1 times [2020-07-21 11:29:07,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:07,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771895887] [2020-07-21 11:29:07,172 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 [2020-07-21 11:29:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:07,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:07,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:07,401 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 11:29:07,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:07,508 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 114 proven. 36 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 11:29:07,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771895887] [2020-07-21 11:29:07,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:07,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:29:07,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398329592] [2020-07-21 11:29:07,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:29:07,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:07,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:29:07,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:29:07,514 INFO L87 Difference]: Start difference. First operand 4541 states and 5450 transitions. Second operand 6 states. [2020-07-21 11:29:08,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:08,044 INFO L93 Difference]: Finished difference Result 8756 states and 10503 transitions. [2020-07-21 11:29:08,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:29:08,045 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 229 [2020-07-21 11:29:08,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:08,061 INFO L225 Difference]: With dead ends: 8756 [2020-07-21 11:29:08,062 INFO L226 Difference]: Without dead ends: 4221 [2020-07-21 11:29:08,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 452 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:29:08,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4221 states. [2020-07-21 11:29:08,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4221 to 4217. [2020-07-21 11:29:08,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4217 states. [2020-07-21 11:29:08,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4217 states to 4217 states and 4895 transitions. [2020-07-21 11:29:08,209 INFO L78 Accepts]: Start accepts. Automaton has 4217 states and 4895 transitions. Word has length 229 [2020-07-21 11:29:08,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:08,210 INFO L479 AbstractCegarLoop]: Abstraction has 4217 states and 4895 transitions. [2020-07-21 11:29:08,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:29:08,210 INFO L276 IsEmpty]: Start isEmpty. Operand 4217 states and 4895 transitions. [2020-07-21 11:29:08,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-07-21 11:29:08,224 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:08,224 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:29:08,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:08,439 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:08,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:08,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1522903008, now seen corresponding path program 1 times [2020-07-21 11:29:08,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:08,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191329713] [2020-07-21 11:29:08,441 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 [2020-07-21 11:29:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:08,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:08,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:08,672 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 207 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-21 11:29:08,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:08,816 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 172 proven. 36 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-21 11:29:08,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [191329713] [2020-07-21 11:29:08,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:08,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:29:08,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296113993] [2020-07-21 11:29:08,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:29:08,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:08,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:29:08,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:29:08,819 INFO L87 Difference]: Start difference. First operand 4217 states and 4895 transitions. Second operand 7 states. [2020-07-21 11:29:10,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:10,374 INFO L93 Difference]: Finished difference Result 9866 states and 11437 transitions. [2020-07-21 11:29:10,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:29:10,375 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 263 [2020-07-21 11:29:10,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:10,401 INFO L225 Difference]: With dead ends: 9866 [2020-07-21 11:29:10,401 INFO L226 Difference]: Without dead ends: 5799 [2020-07-21 11:29:10,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 521 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:29:10,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5799 states. [2020-07-21 11:29:10,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5799 to 5505. [2020-07-21 11:29:10,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5505 states. [2020-07-21 11:29:10,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5505 states to 5505 states and 6167 transitions. [2020-07-21 11:29:10,570 INFO L78 Accepts]: Start accepts. Automaton has 5505 states and 6167 transitions. Word has length 263 [2020-07-21 11:29:10,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:10,571 INFO L479 AbstractCegarLoop]: Abstraction has 5505 states and 6167 transitions. [2020-07-21 11:29:10,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:29:10,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5505 states and 6167 transitions. [2020-07-21 11:29:10,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-07-21 11:29:10,595 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:10,595 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:29:10,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:10,811 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:10,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:10,811 INFO L82 PathProgramCache]: Analyzing trace with hash -834923932, now seen corresponding path program 1 times [2020-07-21 11:29:10,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:10,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [637540378] [2020-07-21 11:29:10,813 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 [2020-07-21 11:29:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:10,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:29:10,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:11,040 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2020-07-21 11:29:11,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:11,232 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 174 proven. 80 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-07-21 11:29:11,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [637540378] [2020-07-21 11:29:11,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:11,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:29:11,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294843592] [2020-07-21 11:29:11,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:29:11,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:11,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:29:11,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:29:11,234 INFO L87 Difference]: Start difference. First operand 5505 states and 6167 transitions. Second operand 7 states. [2020-07-21 11:29:12,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:12,639 INFO L93 Difference]: Finished difference Result 10254 states and 11467 transitions. [2020-07-21 11:29:12,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:29:12,639 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 295 [2020-07-21 11:29:12,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:12,640 INFO L225 Difference]: With dead ends: 10254 [2020-07-21 11:29:12,640 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:29:12,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 586 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:29:12,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:29:12,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:29:12,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:29:12,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:29:12,662 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 295 [2020-07-21 11:29:12,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:12,663 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:29:12,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:29:12,663 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:29:12,663 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:29:12,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:12,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:29:15,082 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 155 DAG size of output: 75 [2020-07-21 11:29:15,760 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2020-07-21 11:29:16,418 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2020-07-21 11:29:16,423 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:29:16,424 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)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 11:29:16,424 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:29:16,424 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,424 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,425 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,425 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,425 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,425 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 11:29:16,425 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 11:29:16,425 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 11:29:16,425 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 11:29:16,426 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 11:29:16,426 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 11:29:16,426 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 11:29:16,426 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 11:29:16,426 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 11:29:16,426 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 11:29:16,426 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 11:29:16,426 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 11:29:16,426 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 11:29:16,426 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,426 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,426 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,427 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,427 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 11:29:16,427 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,427 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 11:29:16,427 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 11:29:16,427 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 11:29:16,427 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 11:29:16,427 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 11:29:16,427 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 11:29:16,427 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 11:29:16,428 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 11:29:16,428 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 11:29:16,428 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 11:29:16,428 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 11:29:16,428 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 11:29:16,428 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 11:29:16,428 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 11:29:16,428 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 11:29:16,428 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,428 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,429 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,429 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,429 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,429 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 541) no Hoare annotation was computed. [2020-07-21 11:29:16,429 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 11:29:16,429 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 11:29:16,429 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 11:29:16,429 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 11:29:16,430 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 11:29:16,430 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 11:29:16,430 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 11:29:16,430 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 11:29:16,430 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 11:29:16,430 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 11:29:16,430 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 11:29:16,430 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,431 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,431 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,431 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,431 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,431 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 11:29:16,431 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 11:29:16,431 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 11:29:16,431 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 11:29:16,431 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 11:29:16,431 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 11:29:16,432 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 11:29:16,432 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 11:29:16,432 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 11:29:16,432 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 11:29:16,432 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 11:29:16,432 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 11:29:16,432 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 11:29:16,432 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,432 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,432 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,433 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,433 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,433 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 11:29:16,433 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 11:29:16,433 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 11:29:16,433 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 11:29:16,433 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 11:29:16,433 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 11:29:16,433 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 11:29:16,433 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 11:29:16,433 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 11:29:16,433 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 11:29:16,434 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 11:29:16,434 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 11:29:16,434 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 11:29:16,434 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 11:29:16,434 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 11:29:16,434 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 11:29:16,434 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,434 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,434 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,434 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,434 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 11:29:16,435 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,435 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 11:29:16,435 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,435 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 11:29:16,435 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 11:29:16,435 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 11:29:16,435 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,435 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,435 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 11:29:16,435 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 11:29:16,435 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 11:29:16,435 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 11:29:16,435 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 11:29:16,435 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 11:29:16,436 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 11:29:16,436 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 11:29:16,436 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 11:29:16,436 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 11:29:16,436 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 11:29:16,436 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,436 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,436 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,436 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,436 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,437 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,437 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 11:29:16,437 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 11:29:16,437 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 11:29:16,437 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 11:29:16,437 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 11:29:16,437 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 11:29:16,437 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 11:29:16,438 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 11:29:16,438 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 11:29:16,438 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 11:29:16,438 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 11:29:16,438 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,438 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,438 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,438 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,439 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,439 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,439 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 11:29:16,439 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 11:29:16,439 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 11:29:16,439 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 11:29:16,439 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 11:29:16,439 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 11:29:16,440 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 11:29:16,440 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 11:29:16,440 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 11:29:16,440 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 11:29:16,440 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 11:29:16,440 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 11:29:16,440 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 11:29:16,440 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 11:29:16,441 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,441 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,441 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,441 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse10 (<= ~a17~0 |old(~a17~0)|)) (.cse12 (<= ~a28~0 |old(~a28~0)|)) (.cse13 (= ~a19~0 |old(~a19~0)|)) (.cse14 (<= |old(~a28~0)| ~a28~0)) (.cse22 (= 1 ~a25~0)) (.cse11 (<= ~a11~0 0))) (let ((.cse18 (<= ~a28~0 10)) (.cse19 (<= ~a17~0 7)) (.cse17 (or .cse11 (< 0 |old(~a11~0)|))) (.cse15 (= ~a25~0 |old(~a25~0)|)) (.cse1 (and .cse10 .cse11 .cse12 .cse13 .cse14 .cse22)) (.cse8 (not (<= |old(~a28~0)| 7))) (.cse16 (not (<= |old(~a17~0)| 7))) (.cse20 (not (<= |old(~a28~0)| 9))) (.cse9 (not (<= |old(~a25~0)| 0))) (.cse4 (not (<= |old(~a19~0)| 0))) (.cse6 (not (<= |old(~a11~0)| 0))) (.cse7 (not (= 1 |old(~a19~0)|))) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse2 (not (<= 9 |old(~a28~0)|))) (.cse3 (not (= 1 |old(~a25~0)|))) (.cse21 (and .cse10 .cse12 .cse13 .cse14 .cse22)) (.cse5 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (or .cse7 .cse8 .cse9 (and .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) .cse5 .cse6) (or .cse0 .cse16 (and .cse17 .cse18 .cse19 .cse13)) (or .cse12 .cse20 .cse16) (or .cse7 .cse0 .cse2 .cse9 (and .cse10 .cse18 .cse13 .cse14 .cse15) .cse5) (or .cse20 .cse9 (and .cse10 .cse12 .cse13 .cse14 .cse15) .cse4 .cse5) (or .cse7 .cse0 .cse11 .cse2 .cse9 .cse5 .cse6) (or .cse7 .cse16 (and .cse12 .cse19 .cse13)) (or .cse8 (and .cse10 .cse12 .cse17 .cse13 .cse14 .cse15) .cse4 .cse5) (or .cse7 .cse2 .cse20 .cse9 (<= ~a28~0 9) .cse5) (or .cse7 .cse1 .cse3 .cse5 .cse6) (or .cse7 .cse8 .cse3 .cse21 .cse5) (or .cse7 .cse11 .cse16 .cse6) (or .cse11 .cse20 .cse9 .cse4 .cse5 .cse6) (or .cse7 .cse0 .cse2 .cse3 .cse21 .cse5)))) [2020-07-21 11:29:16,442 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,442 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,442 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,442 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 11:29:16,442 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 11:29:16,442 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 11:29:16,443 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 11:29:16,443 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 11:29:16,443 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 11:29:16,443 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 11:29:16,443 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 11:29:16,443 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 11:29:16,443 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 11:29:16,444 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 11:29:16,444 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 11:29:16,469 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 11:29:16,469 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,469 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,469 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,470 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,470 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,470 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,470 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 11:29:16,470 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 11:29:16,470 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 11:29:16,470 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 11:29:16,471 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 11:29:16,471 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 11:29:16,471 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 11:29:16,471 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 11:29:16,471 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 11:29:16,471 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 11:29:16,471 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 11:29:16,471 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 11:29:16,471 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 11:29:16,472 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 11:29:16,472 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 11:29:16,472 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 11:29:16,472 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,472 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,472 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,472 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,472 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:16,473 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 11:29:16,473 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 11:29:16,473 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 11:29:16,473 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 11:29:16,473 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 11:29:16,473 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 11:29:16,473 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 11:29:16,473 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 11:29:16,473 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 11:29:16,474 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 11:29:16,474 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 11:29:16,474 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 11:29:16,474 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 11:29:16,474 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 11:29:16,474 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 11:29:16,474 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 11:29:16,474 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 11:29:16,474 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 11:29:16,475 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 11:29:16,475 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:29:16,475 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-21 11:29:16,475 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:29:16,475 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:29:16,475 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)) (not (<= |old(~a25~0)| 0)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-21 11:29:16,476 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse9 (<= ~a25~0 0)) (.cse1 (<= ~a19~0 0)) (.cse4 (<= ~a17~0 7)) (.cse7 (<= ~a28~0 10)) (.cse8 (<= 1 ~a19~0)) (.cse10 (<= ~a19~0 |old(~a19~0)|)) (.cse11 (<= 9 ~a28~0)) (.cse5 (= 1 ~a25~0)) (.cse3 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (<= ~a11~0 0)) (.cse2 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2) (not (<= |old(~a28~0)| 7)) (and .cse3 .cse4) (and .cse3 .cse0 .cse2 .cse5) (and .cse3 .cse0 .cse6 .cse5) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 (<= ~a28~0 9) .cse9 .cse1) (and .cse0 .cse6 .cse7 .cse1 .cse11 .cse5) (not (<= |old(~a25~0)| 0)) (and .cse7 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse7 .cse8 .cse10 .cse11 .cse5) (and .cse3 .cse0 .cse6 .cse2 (= ~a25~0 |old(~a25~0)|)))) [2020-07-21 11:29:16,476 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 11:29:16,476 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 11:29:16,476 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse9 (<= ~a25~0 0)) (.cse1 (<= ~a19~0 0)) (.cse4 (<= ~a17~0 7)) (.cse7 (<= ~a28~0 10)) (.cse8 (<= 1 ~a19~0)) (.cse10 (<= ~a19~0 |old(~a19~0)|)) (.cse11 (<= 9 ~a28~0)) (.cse5 (= 1 ~a25~0)) (.cse3 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (<= ~a11~0 0)) (.cse2 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2) (not (<= |old(~a28~0)| 7)) (and .cse3 .cse4) (and .cse3 .cse0 .cse2 .cse5) (and .cse3 .cse0 .cse6 .cse5) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 (<= ~a28~0 9) .cse9 .cse1) (and .cse0 .cse6 .cse7 .cse1 .cse11 .cse5) (not (<= |old(~a25~0)| 0)) (and .cse7 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse7 .cse8 .cse10 .cse11 .cse5) (and .cse3 .cse0 .cse6 .cse2 (= ~a25~0 |old(~a25~0)|)))) [2020-07-21 11:29:16,476 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 11:29:16,477 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 11:29:16,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:29:16 BoogieIcfgContainer [2020-07-21 11:29:16,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:29:16,502 INFO L168 Benchmark]: Toolchain (without parser) took 24208.93 ms. Allocated memory was 138.4 MB in the beginning and 574.6 MB in the end (delta: 436.2 MB). Free memory was 101.9 MB in the beginning and 510.4 MB in the end (delta: -408.5 MB). Peak memory consumption was 424.4 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:16,502 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 138.4 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 11:29:16,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.43 ms. Allocated memory was 138.4 MB in the beginning and 205.0 MB in the end (delta: 66.6 MB). Free memory was 101.5 MB in the beginning and 171.5 MB in the end (delta: -70.0 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:16,504 INFO L168 Benchmark]: Boogie Preprocessor took 128.28 ms. Allocated memory is still 205.0 MB. Free memory was 171.5 MB in the beginning and 166.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:16,504 INFO L168 Benchmark]: RCFGBuilder took 1456.28 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 166.4 MB in the beginning and 180.9 MB in the end (delta: -14.5 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:16,505 INFO L168 Benchmark]: TraceAbstraction took 21840.49 ms. Allocated memory was 238.0 MB in the beginning and 574.6 MB in the end (delta: 336.6 MB). Free memory was 180.9 MB in the beginning and 510.4 MB in the end (delta: -329.5 MB). Peak memory consumption was 403.7 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:16,508 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 138.4 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 777.43 ms. Allocated memory was 138.4 MB in the beginning and 205.0 MB in the end (delta: 66.6 MB). Free memory was 101.5 MB in the beginning and 171.5 MB in the end (delta: -70.0 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.28 ms. Allocated memory is still 205.0 MB. Free memory was 171.5 MB in the beginning and 166.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1456.28 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 166.4 MB in the beginning and 180.9 MB in the end (delta: -14.5 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21840.49 ms. Allocated memory was 238.0 MB in the beginning and 574.6 MB in the end (delta: 336.6 MB). Free memory was 180.9 MB in the beginning and 510.4 MB in the end (delta: -329.5 MB). Peak memory consumption was 403.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 541]: 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)) || ((a17 <= \old(a17) && a19 <= 0) && a28 <= 7)) || !(\old(a28) <= 7)) || (1 == a19 && a17 <= 7)) || (((1 == a19 && a17 <= \old(a17)) && a28 <= 7) && 1 == a25)) || (((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && 1 == a25)) || !(\old(a11) <= 0)) || (((((a17 <= \old(a17) && a28 <= 10) && 1 <= a19) && a25 <= 0) && a19 <= \old(a19)) && 9 <= a28)) || (((a17 <= \old(a17) && a28 <= 9) && a25 <= 0) && a19 <= 0)) || (((((a17 <= \old(a17) && a11 <= 0) && a28 <= 10) && a19 <= 0) && 9 <= a28) && 1 == a25)) || !(\old(a25) <= 0)) || (a28 <= 10 && a17 <= 7)) || !(\old(a17) <= 8)) || (((((a17 <= \old(a17) && a28 <= 10) && 1 <= a19) && a19 <= \old(a19)) && 9 <= a28) && 1 == a25)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= 7) && a25 == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.1s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 925 SDtfs, 4512 SDslu, 656 SDs, 0 SdLazy, 7632 SolverSat, 1211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3593 GetRequests, 3531 SyntacticMatches, 12 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5505occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 389 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 215 PreInvPairs, 299 NumberOfFragments, 840 HoareAnnotationTreeSize, 215 FomulaSimplifications, 3018 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4266 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 2085 NumberOfCodeBlocks, 2085 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 3561 ConstructedInterpolants, 0 QuantifiedInterpolants, 1358761 SizeOfPredicates, 13 NumberOfNonLiveVariables, 5166 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 18 InterpolantComputations, 5 PerfectInterpolantSequences, 2122/2295 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...