/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/Problem10_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:38:57,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:38:57,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:38:57,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:38:57,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:38:57,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:38:57,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:38:57,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:38:57,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:38:57,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:38:57,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:38:57,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:38:57,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:38:57,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:38:57,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:38:57,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:38:57,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:38:57,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:38:57,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:38:57,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:38:57,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:38:57,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:38:57,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:38:57,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:38:57,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 11:38:57,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:38:57,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:38:57,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:38:57,702 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 11:38:57,722 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:38:57,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:38:57,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:38:57,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:38:57,725 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:38:57,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:38:57,725 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:38:57,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:38:57,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:38:57,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:38:57,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:38:57,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:38:57,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:38:57,727 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:38:57,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:38:57,728 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:38:57,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:38:57,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:38:57,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:38:57,729 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:38:57,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:38:57,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:38:57,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:38:57,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:38:57,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:38:57,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:38:57,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:57,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:38:57,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:38:57,731 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 11:38:58,017 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:38:58,030 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:38:58,034 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:38:58,035 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:38:58,036 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:38:58,036 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label44.c [2020-07-20 11:38:58,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a266bb1af/c7e948136a4742fdba4fe5486acfc9ea/FLAGe32b4b36c [2020-07-20 11:38:58,674 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:38:58,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label44.c [2020-07-20 11:38:58,686 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a266bb1af/c7e948136a4742fdba4fe5486acfc9ea/FLAGe32b4b36c [2020-07-20 11:38:58,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a266bb1af/c7e948136a4742fdba4fe5486acfc9ea [2020-07-20 11:38:58,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:38:58,960 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:38:58,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:38:58,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:38:58,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:38:58,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:38:58" (1/1) ... [2020-07-20 11:38:58,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d0c3774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:58, skipping insertion in model container [2020-07-20 11:38:58,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:38:58" (1/1) ... [2020-07-20 11:38:58,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:38:59,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:38:59,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:38:59,432 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:38:59,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:38:59,734 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:38:59,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:59 WrapperNode [2020-07-20 11:38:59,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:38:59,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:38:59,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:38:59,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:38:59,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:59" (1/1) ... [2020-07-20 11:38:59,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:59" (1/1) ... [2020-07-20 11:38:59,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:59" (1/1) ... [2020-07-20 11:38:59,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:59" (1/1) ... [2020-07-20 11:38:59,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:59" (1/1) ... [2020-07-20 11:38:59,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:59" (1/1) ... [2020-07-20 11:38:59,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:59" (1/1) ... [2020-07-20 11:38:59,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:38:59,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:38:59,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:38:59,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:38:59,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:38:59,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:38:59,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:38:59,931 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 11:38:59,931 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:38:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 11:38:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:38:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:38:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 11:38:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:38:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:38:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:39:01,333 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:39:01,334 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 11:39:01,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:39:01 BoogieIcfgContainer [2020-07-20 11:39:01,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:39:01,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:39:01,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:39:01,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:39:01,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:38:58" (1/3) ... [2020-07-20 11:39:01,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cf76f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:39:01, skipping insertion in model container [2020-07-20 11:39:01,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:59" (2/3) ... [2020-07-20 11:39:01,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cf76f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:39:01, skipping insertion in model container [2020-07-20 11:39:01,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:39:01" (3/3) ... [2020-07-20 11:39:01,348 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label44.c [2020-07-20 11:39:01,359 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:39:01,367 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:39:01,382 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:39:01,407 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:39:01,408 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:39:01,408 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:39:01,408 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:39:01,409 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:39:01,409 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:39:01,409 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:39:01,409 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:39:01,432 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 11:39:01,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 11:39:01,442 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:39:01,443 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] [2020-07-20 11:39:01,444 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:39:01,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:39:01,450 INFO L82 PathProgramCache]: Analyzing trace with hash 745509942, now seen corresponding path program 1 times [2020-07-20 11:39:01,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:39:01,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007205941] [2020-07-20 11:39:01,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:39:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:39:01,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:39:01,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:39:01,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:39:01,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:39:01,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007205941] [2020-07-20 11:39:01,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:39:01,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:39:01,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430355427] [2020-07-20 11:39:01,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:39:01,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:39:01,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:39:01,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:39:01,674 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-20 11:39:02,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:39:02,723 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-20 11:39:02,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:39:02,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-07-20 11:39:02,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:39:02,759 INFO L225 Difference]: With dead ends: 571 [2020-07-20 11:39:02,760 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 11:39:02,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:39:02,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 11:39:02,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-20 11:39:02,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 11:39:02,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-20 11:39:02,888 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 63 [2020-07-20 11:39:02,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:39:02,890 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-20 11:39:02,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:39:02,891 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-20 11:39:02,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-20 11:39:02,914 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:39:02,914 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:39:03,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:39:03,130 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:39:03,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:39:03,132 INFO L82 PathProgramCache]: Analyzing trace with hash -825362990, now seen corresponding path program 1 times [2020-07-20 11:39:03,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:39:03,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463015724] [2020-07-20 11:39:03,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:39:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:39:03,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:39:03,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:39:03,256 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:39:03,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:39:03,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463015724] [2020-07-20 11:39:03,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:39:03,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:39:03,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027112013] [2020-07-20 11:39:03,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:39:03,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:39:03,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:39:03,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:39:03,260 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 3 states. [2020-07-20 11:39:03,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:39:03,965 INFO L93 Difference]: Finished difference Result 725 states and 1001 transitions. [2020-07-20 11:39:03,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:39:03,967 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-20 11:39:03,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:39:03,973 INFO L225 Difference]: With dead ends: 725 [2020-07-20 11:39:03,973 INFO L226 Difference]: Without dead ends: 437 [2020-07-20 11:39:03,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:39:03,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-07-20 11:39:03,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2020-07-20 11:39:03,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-20 11:39:04,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 568 transitions. [2020-07-20 11:39:04,001 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 568 transitions. Word has length 133 [2020-07-20 11:39:04,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:39:04,002 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 568 transitions. [2020-07-20 11:39:04,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:39:04,003 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 568 transitions. [2020-07-20 11:39:04,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-20 11:39:04,008 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:39:04,009 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2020-07-20 11:39:04,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:39:04,216 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:39:04,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:39:04,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1901765607, now seen corresponding path program 1 times [2020-07-20 11:39:04,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:39:04,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298140979] [2020-07-20 11:39:04,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:39:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:39:04,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 11:39:04,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:39:04,330 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 11:39:04,331 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 11:39:09,388 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification that was a NOOP. DAG size: 25 [2020-07-20 11:39:12,380 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 11:39:12,706 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:39:12,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:39:12,787 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:39:12,791 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 11:39:12,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298140979] [2020-07-20 11:39:12,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-20 11:39:12,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-07-20 11:39:12,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672204886] [2020-07-20 11:39:12,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:39:12,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:39:12,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:39:12,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=36, Unknown=1, NotChecked=0, Total=56 [2020-07-20 11:39:12,853 INFO L87 Difference]: Start difference. First operand 437 states and 568 transitions. Second operand 6 states. [2020-07-20 11:40:32,181 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2020-07-20 11:42:39,752 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 23 [2020-07-20 11:43:00,074 WARN L193 SmtUtils]: Spent 2.62 s on a formula simplification that was a NOOP. DAG size: 29 [2020-07-20 11:44:17,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:44:17,105 INFO L93 Difference]: Finished difference Result 1780 states and 2428 transitions. [2020-07-20 11:44:17,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 11:44:17,109 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2020-07-20 11:44:17,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:44:17,122 INFO L225 Difference]: With dead ends: 1780 [2020-07-20 11:44:17,123 INFO L226 Difference]: Without dead ends: 1349 [2020-07-20 11:44:17,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=58, Invalid=97, Unknown=1, NotChecked=0, Total=156 [2020-07-20 11:44:17,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2020-07-20 11:44:17,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1319. [2020-07-20 11:44:17,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1319 states. [2020-07-20 11:44:17,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1696 transitions. [2020-07-20 11:44:17,197 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1696 transitions. Word has length 142 [2020-07-20 11:44:17,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:44:17,198 INFO L479 AbstractCegarLoop]: Abstraction has 1319 states and 1696 transitions. [2020-07-20 11:44:17,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:44:17,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1696 transitions. [2020-07-20 11:44:17,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-20 11:44:17,204 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:44:17,205 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2020-07-20 11:44:17,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:44:17,414 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:44:17,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:44:17,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1171294982, now seen corresponding path program 1 times [2020-07-20 11:44:17,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:44:17,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754485] [2020-07-20 11:44:17,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:44:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:44:17,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:44:17,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:44:17,669 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:44:17,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:44:17,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754485] [2020-07-20 11:44:17,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:44:17,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:44:17,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058655840] [2020-07-20 11:44:17,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:44:17,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:44:17,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:44:17,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:44:17,677 INFO L87 Difference]: Start difference. First operand 1319 states and 1696 transitions. Second operand 5 states. [2020-07-20 11:44:22,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:44:22,680 INFO L93 Difference]: Finished difference Result 3270 states and 4436 transitions. [2020-07-20 11:44:22,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:44:22,689 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 185 [2020-07-20 11:44:22,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:44:22,714 INFO L225 Difference]: With dead ends: 3270 [2020-07-20 11:44:22,714 INFO L226 Difference]: Without dead ends: 1957 [2020-07-20 11:44:22,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:44:22,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1957 states. [2020-07-20 11:44:22,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1957 to 1917. [2020-07-20 11:44:22,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1917 states. [2020-07-20 11:44:22,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 2476 transitions. [2020-07-20 11:44:22,837 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 2476 transitions. Word has length 185 [2020-07-20 11:44:22,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:44:22,839 INFO L479 AbstractCegarLoop]: Abstraction has 1917 states and 2476 transitions. [2020-07-20 11:44:22,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:44:22,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 2476 transitions. [2020-07-20 11:44:22,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-20 11:44:22,845 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:44:22,845 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:44:23,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:44:23,059 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:44:23,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:44:23,060 INFO L82 PathProgramCache]: Analyzing trace with hash 726002093, now seen corresponding path program 1 times [2020-07-20 11:44:23,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:44:23,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1586813393] [2020-07-20 11:44:23,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:44:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:44:23,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:44:23,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:44:23,235 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:44:23,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:44:23,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1586813393] [2020-07-20 11:44:23,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:44:23,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:44:23,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031470557] [2020-07-20 11:44:23,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:44:23,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:44:23,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:44:23,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:44:23,239 INFO L87 Difference]: Start difference. First operand 1917 states and 2476 transitions. Second operand 3 states. [2020-07-20 11:44:26,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:44:26,379 INFO L93 Difference]: Finished difference Result 3079 states and 4024 transitions. [2020-07-20 11:44:26,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:44:26,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2020-07-20 11:44:26,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:44:26,418 INFO L225 Difference]: With dead ends: 3079 [2020-07-20 11:44:26,418 INFO L226 Difference]: Without dead ends: 3077 [2020-07-20 11:44:26,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:44:26,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2020-07-20 11:44:26,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 2356. [2020-07-20 11:44:26,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2356 states. [2020-07-20 11:44:26,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 3114 transitions. [2020-07-20 11:44:26,530 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 3114 transitions. Word has length 200 [2020-07-20 11:44:26,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:44:26,531 INFO L479 AbstractCegarLoop]: Abstraction has 2356 states and 3114 transitions. [2020-07-20 11:44:26,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:44:26,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 3114 transitions. [2020-07-20 11:44:26,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-07-20 11:44:26,536 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:44:26,536 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:44:26,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:44:26,751 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:44:26,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:44:26,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1173404218, now seen corresponding path program 1 times [2020-07-20 11:44:26,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:44:26,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1232306915] [2020-07-20 11:44:26,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:44:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:44:26,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:44:26,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:44:26,941 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 180 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:44:26,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:44:27,230 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 180 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:44:27,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1232306915] [2020-07-20 11:44:27,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:44:27,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:44:27,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056253754] [2020-07-20 11:44:27,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:44:27,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:44:27,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:44:27,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:44:27,238 INFO L87 Difference]: Start difference. First operand 2356 states and 3114 transitions. Second operand 7 states. [2020-07-20 11:44:31,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:44:31,952 INFO L93 Difference]: Finished difference Result 5457 states and 7288 transitions. [2020-07-20 11:44:31,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 11:44:31,958 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 215 [2020-07-20 11:44:31,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:44:31,975 INFO L225 Difference]: With dead ends: 5457 [2020-07-20 11:44:31,975 INFO L226 Difference]: Without dead ends: 3107 [2020-07-20 11:44:32,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 425 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-20 11:44:32,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3107 states. [2020-07-20 11:44:32,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3107 to 3097. [2020-07-20 11:44:32,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3097 states. [2020-07-20 11:44:32,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 3810 transitions. [2020-07-20 11:44:32,099 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 3810 transitions. Word has length 215 [2020-07-20 11:44:32,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:44:32,100 INFO L479 AbstractCegarLoop]: Abstraction has 3097 states and 3810 transitions. [2020-07-20 11:44:32,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:44:32,100 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 3810 transitions. [2020-07-20 11:44:32,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-07-20 11:44:32,106 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:44:32,107 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 11:44:32,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:44:32,320 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:44:32,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:44:32,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1724488413, now seen corresponding path program 1 times [2020-07-20 11:44:32,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:44:32,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122873024] [2020-07-20 11:44:32,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:44:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:44:32,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:44:32,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:44:32,468 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-07-20 11:44:32,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:44:32,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122873024] [2020-07-20 11:44:32,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:44:32,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:44:32,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590116757] [2020-07-20 11:44:32,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:44:32,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:44:32,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:44:32,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:44:32,477 INFO L87 Difference]: Start difference. First operand 3097 states and 3810 transitions. Second operand 3 states. [2020-07-20 11:44:34,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:44:34,681 INFO L93 Difference]: Finished difference Result 7048 states and 8655 transitions. [2020-07-20 11:44:34,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:44:34,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-07-20 11:44:34,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:44:34,703 INFO L225 Difference]: With dead ends: 7048 [2020-07-20 11:44:34,703 INFO L226 Difference]: Without dead ends: 2944 [2020-07-20 11:44:34,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:44:34,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2020-07-20 11:44:34,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 2944. [2020-07-20 11:44:34,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2944 states. [2020-07-20 11:44:34,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 3572 transitions. [2020-07-20 11:44:34,780 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 3572 transitions. Word has length 232 [2020-07-20 11:44:34,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:44:34,781 INFO L479 AbstractCegarLoop]: Abstraction has 2944 states and 3572 transitions. [2020-07-20 11:44:34,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:44:34,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 3572 transitions. [2020-07-20 11:44:34,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-07-20 11:44:34,791 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:44:34,792 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:44:35,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:44:35,007 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:44:35,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:44:35,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1481429953, now seen corresponding path program 1 times [2020-07-20 11:44:35,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:44:35,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430935184] [2020-07-20 11:44:35,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:44:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:44:35,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-20 11:44:35,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:44:35,246 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 11:44:35,246 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 11:44:35,408 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2020-07-20 11:44:35,803 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 19 proven. 170 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2020-07-20 11:44:35,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:44:35,966 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-20 11:44:36,136 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-20 11:44:36,137 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:44:36,138 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:44:36,139 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 11:44:36,233 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:44:36,455 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2020-07-20 11:44:36,462 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-20 11:44:36,467 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:44:36,773 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 178 proven. 11 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2020-07-20 11:44:36,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430935184] [2020-07-20 11:44:36,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:44:36,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-07-20 11:44:36,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202752435] [2020-07-20 11:44:36,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-20 11:44:36,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:44:36,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-20 11:44:36,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:44:36,777 INFO L87 Difference]: Start difference. First operand 2944 states and 3572 transitions. Second operand 9 states. [2020-07-20 11:44:44,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:44:44,217 INFO L93 Difference]: Finished difference Result 6378 states and 7801 transitions. [2020-07-20 11:44:44,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 11:44:44,222 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 298 [2020-07-20 11:44:44,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:44:44,223 INFO L225 Difference]: With dead ends: 6378 [2020-07-20 11:44:44,223 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:44:44,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2020-07-20 11:44:44,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:44:44,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:44:44,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:44:44,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:44:44,238 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 298 [2020-07-20 11:44:44,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:44:44,239 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:44:44,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-20 11:44:44,239 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:44:44,239 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:44:44,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:44:44,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:44:45,174 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 16 [2020-07-20 11:44:45,436 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 30 [2020-07-20 11:44:47,694 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 174 DAG size of output: 74 [2020-07-20 11:44:48,478 WARN L193 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 49 [2020-07-20 11:44:49,233 WARN L193 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 49 [2020-07-20 11:44:49,239 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:44:49,239 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a1~0)| ~a1~0) (<= ~a19~0 |old(~a19~0)|)) [2020-07-20 11:44:49,239 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:44:49,239 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 11:44:49,240 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,240 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,240 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,240 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,241 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,241 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,241 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 11:44:49,241 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 11:44:49,242 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 11:44:49,242 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 11:44:49,242 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 11:44:49,242 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 11:44:49,243 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 11:44:49,243 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 11:44:49,243 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 11:44:49,243 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 11:44:49,243 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 11:44:49,243 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,243 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,244 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,244 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,244 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,244 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 11:44:49,244 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 11:44:49,244 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 11:44:49,244 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 11:44:49,244 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 11:44:49,245 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 11:44:49,245 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 11:44:49,245 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 11:44:49,245 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 11:44:49,245 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 11:44:49,245 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 11:44:49,245 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 11:44:49,245 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 11:44:49,246 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-07-20 11:44:49,246 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 11:44:49,246 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,246 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,246 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,246 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,246 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,247 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 11:44:49,247 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 11:44:49,247 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 11:44:49,247 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 11:44:49,247 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 11:44:49,247 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 11:44:49,247 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 11:44:49,248 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 11:44:49,248 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 11:44:49,248 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 11:44:49,248 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,248 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,248 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,248 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,248 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,249 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 11:44:49,249 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 11:44:49,249 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 11:44:49,249 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 11:44:49,249 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 11:44:49,249 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 11:44:49,249 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 11:44:49,249 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 11:44:49,250 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 11:44:49,250 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 11:44:49,250 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 11:44:49,250 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 11:44:49,250 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 11:44:49,250 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,250 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,250 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,251 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,251 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,251 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 11:44:49,251 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 11:44:49,251 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 11:44:49,251 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 11:44:49,251 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 11:44:49,251 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 11:44:49,252 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 11:44:49,252 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 11:44:49,252 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 11:44:49,252 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,252 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,252 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,252 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,252 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,253 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,253 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,253 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 11:44:49,253 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 11:44:49,253 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 11:44:49,253 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 11:44:49,253 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 11:44:49,253 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 11:44:49,254 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 11:44:49,254 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 11:44:49,254 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 11:44:49,254 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 11:44:49,254 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 11:44:49,254 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 11:44:49,254 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 11:44:49,254 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,255 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,255 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,255 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,255 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 11:44:49,255 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,255 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,255 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 11:44:49,256 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 11:44:49,256 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 11:44:49,256 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 11:44:49,256 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 11:44:49,256 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 11:44:49,256 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 11:44:49,256 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 11:44:49,256 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 11:44:49,257 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 11:44:49,257 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 11:44:49,257 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 11:44:49,257 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 11:44:49,257 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,257 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,257 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,258 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,258 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,258 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,258 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 11:44:49,258 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 11:44:49,258 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 11:44:49,258 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 11:44:49,258 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 11:44:49,259 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 11:44:49,259 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 11:44:49,259 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 11:44:49,259 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 11:44:49,259 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 11:44:49,259 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 11:44:49,260 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse4 (<= ~a10~0 |old(~a10~0)|)) (.cse5 (<= |old(~a1~0)| ~a1~0)) (.cse6 (<= ~a19~0 |old(~a19~0)|))) (let ((.cse9 (not (<= |old(~a10~0)| 2))) (.cse1 (and .cse4 .cse5 .cse6 (<= 2 ~a10~0))) (.cse2 (not (<= |old(~a19~0)| 9))) (.cse3 (not (<= 2 |old(~a10~0)|))) (.cse0 (not (<= |old(~a19~0)| 7))) (.cse7 (not (= 0 ~a12~0))) (.cse8 (not (= 14 ~a4~0))) (.cse10 (and .cse4 .cse5 .cse6))) (and (or .cse0 .cse1 .cse2 .cse3) (or (and (<= 9 ~a19~0) (or (not (= 9 ~a19~0)) (< 0 (+ ~a1~0 13)) (not (= 0 ~a10~0))) .cse4 .cse5 .cse6) .cse7 (not (<= 9 |old(~a19~0)|)) .cse8 (and (= 0 |old(~a10~0)|) (= 9 |old(~a19~0)|) (not (< 0 (+ |old(~a1~0)| 13)))) .cse9) (or .cse7 .cse8 .cse10 (forall ((v_~a1~0_367 Int)) (or (not (= 0 (mod v_~a1~0_367 5))) (not (<= (+ (div v_~a1~0_367 5) 331501) |old(~a1~0)|)) (not (< 0 (+ v_~a1~0_367 13))))) .cse9) (or .cse7 .cse1 .cse8 .cse2 .cse3) (or .cse0 .cse10) (or (not (<= |old(~a10~0)| 0)) .cse7 .cse8 .cse10)))) [2020-07-20 11:44:49,260 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 11:44:49,260 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 11:44:49,260 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 11:44:49,260 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,260 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,260 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,260 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,261 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,261 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,261 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 11:44:49,261 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 11:44:49,261 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 11:44:49,261 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 11:44:49,261 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 11:44:49,261 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 11:44:49,261 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 11:44:49,262 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 11:44:49,262 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 11:44:49,262 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 11:44:49,262 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 11:44:49,262 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 11:44:49,262 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 11:44:49,262 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,263 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,263 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,263 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,263 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,263 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,263 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 11:44:49,263 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 11:44:49,264 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 11:44:49,264 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 11:44:49,264 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 11:44:49,264 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 11:44:49,264 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 11:44:49,264 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 11:44:49,264 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 11:44:49,264 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 11:44:49,264 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 11:44:49,265 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 11:44:49,265 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,265 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,265 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,265 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,265 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,265 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:44:49,265 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 11:44:49,265 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 11:44:49,266 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 11:44:49,266 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 11:44:49,266 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 11:44:49,266 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 11:44:49,266 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 11:44:49,266 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 11:44:49,266 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 11:44:49,266 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 11:44:49,267 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 11:44:49,267 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 11:44:49,267 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:44:49,267 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= 14 ~a4~0) (<= ~a19~0 9) (<= 9 ~a19~0) (= 0 ~a12~0) (<= 23 ~a1~0)) [2020-07-20 11:44:49,267 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:44:49,267 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:44:49,267 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= |old(~a1~0)| ~a1~0) (<= ~a19~0 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9))) [2020-07-20 11:44:49,267 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 11:44:49,268 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a10~0 2))) (or (<= ~a10~0 0) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (and (exists ((v_~a1~0_367 Int)) (and (= 0 (mod v_~a1~0_367 5)) (<= (+ (div v_~a1~0_367 5) 331501) ~a1~0) (< 0 (+ v_~a1~0_367 13)))) .cse0) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (<= ~a19~0 9) (<= 2 ~a10~0)) (<= ~a19~0 7) (and (<= 9 ~a19~0) .cse0))) [2020-07-20 11:44:49,268 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 11:44:49,268 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 11:44:49,268 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a10~0 2))) (or (<= ~a10~0 0) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (and (exists ((v_~a1~0_367 Int)) (and (= 0 (mod v_~a1~0_367 5)) (<= (+ (div v_~a1~0_367 5) 331501) ~a1~0) (< 0 (+ v_~a1~0_367 13)))) .cse0) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (<= ~a19~0 9) (<= 2 ~a10~0)) (<= ~a19~0 7) (and (<= 9 ~a19~0) .cse0))) [2020-07-20 11:44:49,268 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 11:44:49,279 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-20 11:44:49,280 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-20 11:44:49,281 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-20 11:44:49,289 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-20 11:44:49,289 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-20 11:44:49,289 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-20 11:44:49,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:44:49 BoogieIcfgContainer [2020-07-20 11:44:49,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:44:49,294 INFO L168 Benchmark]: Toolchain (without parser) took 350334.80 ms. Allocated memory was 137.9 MB in the beginning and 379.1 MB in the end (delta: 241.2 MB). Free memory was 100.2 MB in the beginning and 207.5 MB in the end (delta: -107.3 MB). Peak memory consumption was 249.9 MB. Max. memory is 7.1 GB. [2020-07-20 11:44:49,295 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 11:44:49,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.35 ms. Allocated memory was 137.9 MB in the beginning and 206.6 MB in the end (delta: 68.7 MB). Free memory was 99.8 MB in the beginning and 176.7 MB in the end (delta: -76.9 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB. [2020-07-20 11:44:49,296 INFO L168 Benchmark]: Boogie Preprocessor took 113.08 ms. Allocated memory is still 206.6 MB. Free memory was 176.7 MB in the beginning and 172.3 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:44:49,297 INFO L168 Benchmark]: RCFGBuilder took 1491.83 ms. Allocated memory was 206.6 MB in the beginning and 238.6 MB in the end (delta: 32.0 MB). Free memory was 172.3 MB in the beginning and 188.4 MB in the end (delta: -16.2 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. [2020-07-20 11:44:49,298 INFO L168 Benchmark]: TraceAbstraction took 347950.97 ms. Allocated memory was 238.6 MB in the beginning and 379.1 MB in the end (delta: 140.5 MB). Free memory was 188.4 MB in the beginning and 207.5 MB in the end (delta: -19.1 MB). Peak memory consumption was 237.4 MB. Max. memory is 7.1 GB. [2020-07-20 11:44:49,301 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 773.35 ms. Allocated memory was 137.9 MB in the beginning and 206.6 MB in the end (delta: 68.7 MB). Free memory was 99.8 MB in the beginning and 176.7 MB in the end (delta: -76.9 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.08 ms. Allocated memory is still 206.6 MB. Free memory was 176.7 MB in the beginning and 172.3 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1491.83 ms. Allocated memory was 206.6 MB in the beginning and 238.6 MB in the end (delta: 32.0 MB). Free memory was 172.3 MB in the beginning and 188.4 MB in the end (delta: -16.2 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 347950.97 ms. Allocated memory was 238.6 MB in the beginning and 379.1 MB in the end (delta: 140.5 MB). Free memory was 188.4 MB in the beginning and 207.5 MB in the end (delta: -19.1 MB). Peak memory consumption was 237.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: 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: 582]: Loop Invariant [2020-07-20 11:44:49,310 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-20 11:44:49,310 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-20 11:44:49,310 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-20 11:44:49,311 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-20 11:44:49,311 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-20 11:44:49,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] Derived loop invariant: (((((((((a10 <= 0 || !(23 <= \old(a1))) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || !(0 == a12)) || ((\exists v_~a1~0_367 : int :: (0 == v_~a1~0_367 % 5 && v_~a1~0_367 / 5 + 331501 <= a1) && 0 < v_~a1~0_367 + 13) && a10 <= 2)) || !(14 == a4)) || !(\old(a19) <= 9)) || (a19 <= 9 && 2 <= a10)) || a19 <= 7) || (9 <= a19 && a10 <= 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 343.0s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 328.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 667 SDtfs, 2224 SDslu, 218 SDs, 0 SdLazy, 5429 SolverSat, 1062 SolverUnsat, 124 SolverUnknown, 0 SolverNotchecked, 305.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2049 GetRequests, 2008 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 12.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3097occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 801 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 109 PreInvPairs, 171 NumberOfFragments, 401 HoareAnnotationTreeSize, 109 FomulaSimplifications, 4786 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4233 FormulaSimplificationTreeSizeReductionInter, 4.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.0s InterpolantComputationTime, 1468 NumberOfCodeBlocks, 1468 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1971 ConstructedInterpolants, 118 QuantifiedInterpolants, 1835291 SizeOfPredicates, 20 NumberOfNonLiveVariables, 2681 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 1318/1556 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...