/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:28:03,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:28:03,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:28:03,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:28:03,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:28:03,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:28:03,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:28:03,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:28:03,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:28:03,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:28:03,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:28:03,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:28:03,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:28:03,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:28:03,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:28:03,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:28:03,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:28:03,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:28:03,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:28:03,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:28:03,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:28:03,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:28:03,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:28:03,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:28:03,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:28:03,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:28:03,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:28:03,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:28:03,735 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:28:03,752 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:28:03,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:28:03,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:28:03,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:28:03,754 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:28:03,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:28:03,755 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:28:03,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:28:03,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:28:03,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:28:03,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:28:03,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:28:03,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:28:03,756 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:28:03,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:28:03,756 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:28:03,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:28:03,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:28:03,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:28:03,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:28:03,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:28:03,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:28:03,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:28:03,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:28:03,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:28:03,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:28:03,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:03,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:28:03,759 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:28:03,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:28:04,020 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:28:04,033 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:28:04,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:28:04,037 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:28:04,038 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:28:04,039 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-07-21 11:28:04,117 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9a317eb1/96be56ae929f4fe38edd6b5f0d3ffbdb/FLAGd48eef618 [2020-07-21 11:28:04,593 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:28:04,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-07-21 11:28:04,605 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9a317eb1/96be56ae929f4fe38edd6b5f0d3ffbdb/FLAGd48eef618 [2020-07-21 11:28:04,891 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9a317eb1/96be56ae929f4fe38edd6b5f0d3ffbdb [2020-07-21 11:28:04,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:28:04,905 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:28:04,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:28:04,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:28:04,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:28:04,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:28:04" (1/1) ... [2020-07-21 11:28:04,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c48897d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:04, skipping insertion in model container [2020-07-21 11:28:04,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:28:04" (1/1) ... [2020-07-21 11:28:04,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:28:04,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:28:05,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:28:05,365 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:28:05,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:28:05,642 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:28:05,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:05 WrapperNode [2020-07-21 11:28:05,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:28:05,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:28:05,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:28:05,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:28:05,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:05" (1/1) ... [2020-07-21 11:28:05,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:05" (1/1) ... [2020-07-21 11:28:05,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:05" (1/1) ... [2020-07-21 11:28:05,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:05" (1/1) ... [2020-07-21 11:28:05,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:05" (1/1) ... [2020-07-21 11:28:05,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:05" (1/1) ... [2020-07-21 11:28:05,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:05" (1/1) ... [2020-07-21 11:28:05,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:28:05,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:28:05,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:28:05,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:28:05,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:28:05,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:28:05,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:28:05,847 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:28:05,847 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:28:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:28:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:28:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:28:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:28:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:28:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:28:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:28:07,066 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:28:07,068 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:28:07,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:28:07 BoogieIcfgContainer [2020-07-21 11:28:07,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:28:07,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:28:07,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:28:07,083 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:28:07,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:28:04" (1/3) ... [2020-07-21 11:28:07,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d5098ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:28:07, skipping insertion in model container [2020-07-21 11:28:07,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:05" (2/3) ... [2020-07-21 11:28:07,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d5098ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:28:07, skipping insertion in model container [2020-07-21 11:28:07,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:28:07" (3/3) ... [2020-07-21 11:28:07,089 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label41.c [2020-07-21 11:28:07,101 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:28:07,112 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:28:07,127 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:28:07,160 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:28:07,161 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:28:07,161 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:28:07,161 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:28:07,162 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:28:07,162 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:28:07,162 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:28:07,162 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:28:07,190 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 11:28:07,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-07-21 11:28:07,210 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:07,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:07,212 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:07,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:07,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1961179338, now seen corresponding path program 1 times [2020-07-21 11:28:07,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:07,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966472333] [2020-07-21 11:28:07,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:07,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:28:07,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:07,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:28:07,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:07,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966472333] [2020-07-21 11:28:07,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:07,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:28:07,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669871509] [2020-07-21 11:28:07,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:28:07,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:07,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:28:07,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:07,506 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 11:28:08,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:08,509 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-21 11:28:08,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:28:08,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-07-21 11:28:08,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:08,527 INFO L225 Difference]: With dead ends: 619 [2020-07-21 11:28:08,528 INFO L226 Difference]: Without dead ends: 321 [2020-07-21 11:28:08,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:08,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-21 11:28:08,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-21 11:28:08,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-21 11:28:08,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-21 11:28:08,603 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 96 [2020-07-21 11:28:08,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:08,604 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-21 11:28:08,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:28:08,604 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-21 11:28:08,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-07-21 11:28:08,610 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:08,610 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:08,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:08,825 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:08,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:08,825 INFO L82 PathProgramCache]: Analyzing trace with hash -263747545, now seen corresponding path program 1 times [2020-07-21 11:28:08,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:08,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [175833292] [2020-07-21 11:28:08,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:08,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:08,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:08,955 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:28:08,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:08,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [175833292] [2020-07-21 11:28:08,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:08,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:28:08,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825159472] [2020-07-21 11:28:08,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:28:08,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:08,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:28:08,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:08,960 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-21 11:28:09,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:09,593 INFO L93 Difference]: Finished difference Result 782 states and 1068 transitions. [2020-07-21 11:28:09,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:28:09,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-07-21 11:28:09,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:09,607 INFO L225 Difference]: With dead ends: 782 [2020-07-21 11:28:09,608 INFO L226 Difference]: Without dead ends: 469 [2020-07-21 11:28:09,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:09,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-21 11:28:09,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2020-07-21 11:28:09,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-07-21 11:28:09,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 600 transitions. [2020-07-21 11:28:09,672 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 600 transitions. Word has length 105 [2020-07-21 11:28:09,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:09,676 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 600 transitions. [2020-07-21 11:28:09,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:28:09,676 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 600 transitions. [2020-07-21 11:28:09,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-21 11:28:09,683 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:09,683 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:09,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:09,900 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:09,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:09,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1318994351, now seen corresponding path program 1 times [2020-07-21 11:28:09,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:09,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776605738] [2020-07-21 11:28:09,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:09,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 11:28:10,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:10,072 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 11:28:10,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:10,188 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 11:28:10,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [776605738] [2020-07-21 11:28:10,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 11:28:10,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 11:28:10,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188986183] [2020-07-21 11:28:10,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 11:28:10,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:10,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 11:28:10,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:28:10,191 INFO L87 Difference]: Start difference. First operand 469 states and 600 transitions. Second operand 4 states. [2020-07-21 11:28:10,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:10,841 INFO L93 Difference]: Finished difference Result 1386 states and 1800 transitions. [2020-07-21 11:28:10,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 11:28:10,842 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2020-07-21 11:28:10,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:10,853 INFO L225 Difference]: With dead ends: 1386 [2020-07-21 11:28:10,854 INFO L226 Difference]: Without dead ends: 923 [2020-07-21 11:28:10,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 226 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:28:10,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-07-21 11:28:10,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 923. [2020-07-21 11:28:10,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2020-07-21 11:28:10,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1177 transitions. [2020-07-21 11:28:10,898 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1177 transitions. Word has length 117 [2020-07-21 11:28:10,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:10,899 INFO L479 AbstractCegarLoop]: Abstraction has 923 states and 1177 transitions. [2020-07-21 11:28:10,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 11:28:10,899 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1177 transitions. [2020-07-21 11:28:10,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-21 11:28:10,904 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:10,904 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:11,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:11,118 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:11,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:11,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1902832748, now seen corresponding path program 1 times [2020-07-21 11:28:11,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:11,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237449647] [2020-07-21 11:28:11,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:11,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:11,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:11,274 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 11:28:11,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:11,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237449647] [2020-07-21 11:28:11,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:11,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:28:11,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450152476] [2020-07-21 11:28:11,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:28:11,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:11,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:28:11,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:11,279 INFO L87 Difference]: Start difference. First operand 923 states and 1177 transitions. Second operand 3 states. [2020-07-21 11:28:11,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:11,982 INFO L93 Difference]: Finished difference Result 2130 states and 2809 transitions. [2020-07-21 11:28:11,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:28:11,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-07-21 11:28:11,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:11,990 INFO L225 Difference]: With dead ends: 2130 [2020-07-21 11:28:11,991 INFO L226 Difference]: Without dead ends: 1213 [2020-07-21 11:28:11,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:11,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2020-07-21 11:28:12,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1211. [2020-07-21 11:28:12,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-07-21 11:28:12,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1581 transitions. [2020-07-21 11:28:12,033 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1581 transitions. Word has length 125 [2020-07-21 11:28:12,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:12,034 INFO L479 AbstractCegarLoop]: Abstraction has 1211 states and 1581 transitions. [2020-07-21 11:28:12,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:28:12,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1581 transitions. [2020-07-21 11:28:12,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-21 11:28:12,038 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:12,038 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:12,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:12,252 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:12,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:12,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1880125214, now seen corresponding path program 1 times [2020-07-21 11:28:12,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:12,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453071031] [2020-07-21 11:28:12,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:12,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:12,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:12,368 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-21 11:28:12,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:12,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453071031] [2020-07-21 11:28:12,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:12,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:28:12,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622337373] [2020-07-21 11:28:12,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:28:12,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:12,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:28:12,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:12,371 INFO L87 Difference]: Start difference. First operand 1211 states and 1581 transitions. Second operand 3 states. [2020-07-21 11:28:12,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:12,978 INFO L93 Difference]: Finished difference Result 3595 states and 4812 transitions. [2020-07-21 11:28:12,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:28:12,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-07-21 11:28:12,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:12,995 INFO L225 Difference]: With dead ends: 3595 [2020-07-21 11:28:12,995 INFO L226 Difference]: Without dead ends: 2390 [2020-07-21 11:28:12,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:13,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2020-07-21 11:28:13,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2380. [2020-07-21 11:28:13,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2380 states. [2020-07-21 11:28:13,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 3112 transitions. [2020-07-21 11:28:13,089 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 3112 transitions. Word has length 131 [2020-07-21 11:28:13,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:13,089 INFO L479 AbstractCegarLoop]: Abstraction has 2380 states and 3112 transitions. [2020-07-21 11:28:13,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:28:13,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 3112 transitions. [2020-07-21 11:28:13,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-21 11:28:13,099 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:13,100 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:13,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:13,314 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:13,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:13,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1978590773, now seen corresponding path program 1 times [2020-07-21 11:28:13,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:13,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510942012] [2020-07-21 11:28:13,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:13,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:13,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:13,438 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:28:13,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:13,510 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:28:13,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510942012] [2020-07-21 11:28:13,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:13,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:28:13,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729969652] [2020-07-21 11:28:13,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:28:13,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:13,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:28:13,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:28:13,515 INFO L87 Difference]: Start difference. First operand 2380 states and 3112 transitions. Second operand 6 states. [2020-07-21 11:28:14,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:14,567 INFO L93 Difference]: Finished difference Result 5458 states and 7301 transitions. [2020-07-21 11:28:14,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:28:14,568 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2020-07-21 11:28:14,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:14,596 INFO L225 Difference]: With dead ends: 5458 [2020-07-21 11:28:14,597 INFO L226 Difference]: Without dead ends: 3084 [2020-07-21 11:28:14,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 282 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:28:14,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2020-07-21 11:28:14,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 3036. [2020-07-21 11:28:14,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3036 states. [2020-07-21 11:28:14,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 3925 transitions. [2020-07-21 11:28:14,707 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 3925 transitions. Word has length 143 [2020-07-21 11:28:14,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:14,708 INFO L479 AbstractCegarLoop]: Abstraction has 3036 states and 3925 transitions. [2020-07-21 11:28:14,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:28:14,708 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 3925 transitions. [2020-07-21 11:28:14,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-21 11:28:14,717 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:14,717 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:14,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:14,933 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:14,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:14,934 INFO L82 PathProgramCache]: Analyzing trace with hash 605629041, now seen corresponding path program 1 times [2020-07-21 11:28:14,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:14,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1043210470] [2020-07-21 11:28:14,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:15,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:15,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:15,093 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 11:28:15,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:15,175 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 11:28:15,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1043210470] [2020-07-21 11:28:15,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:15,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:28:15,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727731115] [2020-07-21 11:28:15,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:28:15,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:15,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:28:15,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:28:15,178 INFO L87 Difference]: Start difference. First operand 3036 states and 3925 transitions. Second operand 6 states. [2020-07-21 11:28:16,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:16,073 INFO L93 Difference]: Finished difference Result 6128 states and 7987 transitions. [2020-07-21 11:28:16,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:28:16,078 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2020-07-21 11:28:16,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:16,093 INFO L225 Difference]: With dead ends: 6128 [2020-07-21 11:28:16,094 INFO L226 Difference]: Without dead ends: 3098 [2020-07-21 11:28:16,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 286 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:28:16,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3098 states. [2020-07-21 11:28:16,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3098 to 3074. [2020-07-21 11:28:16,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3074 states. [2020-07-21 11:28:16,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 3718 transitions. [2020-07-21 11:28:16,184 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 3718 transitions. Word has length 145 [2020-07-21 11:28:16,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:16,184 INFO L479 AbstractCegarLoop]: Abstraction has 3074 states and 3718 transitions. [2020-07-21 11:28:16,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:28:16,186 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 3718 transitions. [2020-07-21 11:28:16,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-21 11:28:16,194 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:16,194 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:16,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:16,409 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:16,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:16,409 INFO L82 PathProgramCache]: Analyzing trace with hash -183412167, now seen corresponding path program 1 times [2020-07-21 11:28:16,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:16,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656404220] [2020-07-21 11:28:16,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:16,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 11:28:16,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:16,578 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 11:28:16,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:16,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656404220] [2020-07-21 11:28:16,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:16,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:28:16,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950793078] [2020-07-21 11:28:16,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:28:16,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:16,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:28:16,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:28:16,581 INFO L87 Difference]: Start difference. First operand 3074 states and 3718 transitions. Second operand 5 states. [2020-07-21 11:28:17,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:17,443 INFO L93 Difference]: Finished difference Result 8135 states and 10324 transitions. [2020-07-21 11:28:17,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:28:17,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2020-07-21 11:28:17,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:17,468 INFO L225 Difference]: With dead ends: 8135 [2020-07-21 11:28:17,469 INFO L226 Difference]: Without dead ends: 5067 [2020-07-21 11:28:17,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:28:17,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5067 states. [2020-07-21 11:28:17,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5067 to 4995. [2020-07-21 11:28:17,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4995 states. [2020-07-21 11:28:17,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4995 states to 4995 states and 5940 transitions. [2020-07-21 11:28:17,606 INFO L78 Accepts]: Start accepts. Automaton has 4995 states and 5940 transitions. Word has length 147 [2020-07-21 11:28:17,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:17,606 INFO L479 AbstractCegarLoop]: Abstraction has 4995 states and 5940 transitions. [2020-07-21 11:28:17,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:28:17,607 INFO L276 IsEmpty]: Start isEmpty. Operand 4995 states and 5940 transitions. [2020-07-21 11:28:17,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-21 11:28:17,620 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:17,620 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:17,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:17,835 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:17,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:17,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1998620505, now seen corresponding path program 1 times [2020-07-21 11:28:17,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:17,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918808034] [2020-07-21 11:28:17,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:17,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:17,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:18,031 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 11:28:18,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:18,118 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 11:28:18,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918808034] [2020-07-21 11:28:18,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:18,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:28:18,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91989695] [2020-07-21 11:28:18,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:28:18,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:18,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:28:18,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:28:18,123 INFO L87 Difference]: Start difference. First operand 4995 states and 5940 transitions. Second operand 6 states. [2020-07-21 11:28:18,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:18,673 INFO L93 Difference]: Finished difference Result 9581 states and 11681 transitions. [2020-07-21 11:28:18,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:28:18,674 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2020-07-21 11:28:18,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:18,703 INFO L225 Difference]: With dead ends: 9581 [2020-07-21 11:28:18,704 INFO L226 Difference]: Without dead ends: 4592 [2020-07-21 11:28:18,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 364 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:28:18,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4592 states. [2020-07-21 11:28:18,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4592 to 4524. [2020-07-21 11:28:18,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4524 states. [2020-07-21 11:28:18,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 5219 transitions. [2020-07-21 11:28:18,863 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 5219 transitions. Word has length 185 [2020-07-21 11:28:18,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:18,864 INFO L479 AbstractCegarLoop]: Abstraction has 4524 states and 5219 transitions. [2020-07-21 11:28:18,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:28:18,865 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 5219 transitions. [2020-07-21 11:28:18,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-21 11:28:18,882 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:18,882 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:28:19,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:19,096 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:19,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:19,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1061980931, now seen corresponding path program 1 times [2020-07-21 11:28:19,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:19,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1940586765] [2020-07-21 11:28:19,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:19,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:19,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:19,393 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 11:28:19,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:19,501 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 96 proven. 28 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-21 11:28:19,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1940586765] [2020-07-21 11:28:19,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:19,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:28:19,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748686704] [2020-07-21 11:28:19,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:28:19,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:19,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:28:19,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:28:19,505 INFO L87 Difference]: Start difference. First operand 4524 states and 5219 transitions. Second operand 6 states. [2020-07-21 11:28:20,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:20,264 INFO L93 Difference]: Finished difference Result 8599 states and 9962 transitions. [2020-07-21 11:28:20,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:28:20,265 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 190 [2020-07-21 11:28:20,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:20,278 INFO L225 Difference]: With dead ends: 8599 [2020-07-21 11:28:20,278 INFO L226 Difference]: Without dead ends: 3608 [2020-07-21 11:28:20,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 376 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:28:20,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3608 states. [2020-07-21 11:28:20,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3608 to 3604. [2020-07-21 11:28:20,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3604 states. [2020-07-21 11:28:20,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3604 states to 3604 states and 4020 transitions. [2020-07-21 11:28:20,364 INFO L78 Accepts]: Start accepts. Automaton has 3604 states and 4020 transitions. Word has length 190 [2020-07-21 11:28:20,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:20,364 INFO L479 AbstractCegarLoop]: Abstraction has 3604 states and 4020 transitions. [2020-07-21 11:28:20,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:28:20,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3604 states and 4020 transitions. [2020-07-21 11:28:20,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-07-21 11:28:20,374 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:20,374 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-07-21 11:28:20,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:20,589 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:20,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:20,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1021169547, now seen corresponding path program 1 times [2020-07-21 11:28:20,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:20,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958516188] [2020-07-21 11:28:20,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:20,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:20,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:20,780 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:28:20,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:20,859 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:28:20,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958516188] [2020-07-21 11:28:20,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:20,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:28:20,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152631327] [2020-07-21 11:28:20,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:28:20,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:20,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:28:20,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:28:20,861 INFO L87 Difference]: Start difference. First operand 3604 states and 4020 transitions. Second operand 7 states. [2020-07-21 11:28:22,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:22,057 INFO L93 Difference]: Finished difference Result 8496 states and 9470 transitions. [2020-07-21 11:28:22,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:28:22,058 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-07-21 11:28:22,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:22,075 INFO L225 Difference]: With dead ends: 8496 [2020-07-21 11:28:22,075 INFO L226 Difference]: Without dead ends: 5042 [2020-07-21 11:28:22,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 383 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:28:22,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5042 states. [2020-07-21 11:28:22,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5042 to 3020. [2020-07-21 11:28:22,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3020 states. [2020-07-21 11:28:22,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 3247 transitions. [2020-07-21 11:28:22,157 INFO L78 Accepts]: Start accepts. Automaton has 3020 states and 3247 transitions. Word has length 194 [2020-07-21 11:28:22,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:22,157 INFO L479 AbstractCegarLoop]: Abstraction has 3020 states and 3247 transitions. [2020-07-21 11:28:22,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:28:22,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3020 states and 3247 transitions. [2020-07-21 11:28:22,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-07-21 11:28:22,165 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:22,166 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:28:22,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:22,380 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:22,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:22,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1298715091, now seen corresponding path program 1 times [2020-07-21 11:28:22,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:22,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2023446973] [2020-07-21 11:28:22,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:22,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:22,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:22,582 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 145 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:28:22,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:22,682 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 145 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:28:22,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2023446973] [2020-07-21 11:28:22,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:22,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:28:22,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323865426] [2020-07-21 11:28:22,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:28:22,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:22,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:28:22,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:28:22,685 INFO L87 Difference]: Start difference. First operand 3020 states and 3247 transitions. Second operand 7 states. [2020-07-21 11:28:23,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:23,903 INFO L93 Difference]: Finished difference Result 6169 states and 6639 transitions. [2020-07-21 11:28:23,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 11:28:23,904 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2020-07-21 11:28:23,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:23,922 INFO L225 Difference]: With dead ends: 6169 [2020-07-21 11:28:23,923 INFO L226 Difference]: Without dead ends: 2855 [2020-07-21 11:28:23,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 397 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:28:23,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2020-07-21 11:28:23,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2853. [2020-07-21 11:28:23,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2853 states. [2020-07-21 11:28:23,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 3028 transitions. [2020-07-21 11:28:23,992 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 3028 transitions. Word has length 201 [2020-07-21 11:28:23,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:23,993 INFO L479 AbstractCegarLoop]: Abstraction has 2853 states and 3028 transitions. [2020-07-21 11:28:23,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:28:23,993 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 3028 transitions. [2020-07-21 11:28:24,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-07-21 11:28:24,005 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:24,005 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:24,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:24,220 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:24,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:24,220 INFO L82 PathProgramCache]: Analyzing trace with hash 15833799, now seen corresponding path program 1 times [2020-07-21 11:28:24,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:24,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021802139] [2020-07-21 11:28:24,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:24,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:28:24,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:24,461 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-07-21 11:28:24,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:24,562 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 137 proven. 54 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-21 11:28:24,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1021802139] [2020-07-21 11:28:24,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:24,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:28:24,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869832437] [2020-07-21 11:28:24,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:28:24,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:24,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:28:24,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:28:24,565 INFO L87 Difference]: Start difference. First operand 2853 states and 3028 transitions. Second operand 7 states. [2020-07-21 11:28:25,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:25,952 INFO L93 Difference]: Finished difference Result 5392 states and 5716 transitions. [2020-07-21 11:28:25,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:28:25,952 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 226 [2020-07-21 11:28:25,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:25,953 INFO L225 Difference]: With dead ends: 5392 [2020-07-21 11:28:25,953 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:28:25,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:28:25,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:28:25,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:28:25,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:28:25,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:28:25,968 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 226 [2020-07-21 11:28:25,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:25,968 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:28:25,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:28:25,968 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:28:25,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:28:26,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:26,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:28:26,723 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 156 [2020-07-21 11:28:26,891 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 156 [2020-07-21 11:28:28,462 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 159 DAG size of output: 93 [2020-07-21 11:28:29,314 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 67 [2020-07-21 11:28:30,157 WARN L193 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 67 [2020-07-21 11:28:30,160 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:28:30,161 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 11:28:30,161 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:28:30,161 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,161 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,161 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,162 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,162 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,162 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 11:28:30,162 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 11:28:30,162 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 11:28:30,162 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 11:28:30,163 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 11:28:30,163 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 11:28:30,163 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 11:28:30,163 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 11:28:30,163 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 11:28:30,163 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 11:28:30,163 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 11:28:30,163 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 11:28:30,163 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 11:28:30,164 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,164 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,164 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,164 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,164 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 11:28:30,164 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,164 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 11:28:30,164 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 11:28:30,165 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 11:28:30,165 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 11:28:30,165 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 11:28:30,165 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 11:28:30,165 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 11:28:30,165 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 11:28:30,165 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 11:28:30,165 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 11:28:30,166 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 11:28:30,166 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 11:28:30,166 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 11:28:30,166 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 11:28:30,166 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 11:28:30,166 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,166 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,167 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,167 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,167 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,167 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 442) no Hoare annotation was computed. [2020-07-21 11:28:30,167 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 11:28:30,167 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 11:28:30,167 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 11:28:30,167 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 11:28:30,168 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 11:28:30,168 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 11:28:30,168 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 11:28:30,168 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 11:28:30,168 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 11:28:30,168 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 11:28:30,168 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 11:28:30,168 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,169 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,169 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,169 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,169 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,169 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 11:28:30,169 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 11:28:30,169 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 11:28:30,169 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 11:28:30,170 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 11:28:30,170 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 11:28:30,170 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 11:28:30,170 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 11:28:30,170 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 11:28:30,170 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 11:28:30,170 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 11:28:30,170 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 11:28:30,170 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 11:28:30,171 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,171 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,171 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,171 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,171 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,171 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 11:28:30,171 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 11:28:30,171 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 11:28:30,172 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 11:28:30,172 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 11:28:30,172 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 11:28:30,172 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 11:28:30,172 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 11:28:30,172 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 11:28:30,172 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 11:28:30,172 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 11:28:30,172 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 11:28:30,173 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 11:28:30,173 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 11:28:30,173 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 11:28:30,173 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 11:28:30,173 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,173 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,173 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,173 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,174 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 11:28:30,174 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,174 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 11:28:30,174 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,174 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 11:28:30,174 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 11:28:30,174 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 11:28:30,174 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,175 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,175 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 11:28:30,175 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 11:28:30,175 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 11:28:30,175 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 11:28:30,175 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 11:28:30,175 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 11:28:30,175 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 11:28:30,175 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 11:28:30,176 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 11:28:30,176 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 11:28:30,176 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 11:28:30,176 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,176 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,176 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,176 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,176 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,176 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,177 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 11:28:30,177 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 11:28:30,177 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 11:28:30,177 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 11:28:30,177 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 11:28:30,177 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 11:28:30,177 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 11:28:30,177 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 11:28:30,177 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 11:28:30,178 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 11:28:30,178 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 11:28:30,178 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,178 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,178 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,178 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,178 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,178 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,178 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 11:28:30,179 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 11:28:30,179 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 11:28:30,179 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 11:28:30,179 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 11:28:30,179 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 11:28:30,179 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 11:28:30,179 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 11:28:30,179 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 11:28:30,179 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 11:28:30,180 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 11:28:30,180 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 11:28:30,180 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 11:28:30,180 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 11:28:30,180 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,180 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,180 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,181 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse24 (<= ~a11~0 0)) (.cse9 (<= ~a28~0 |old(~a28~0)|)) (.cse20 (<= ~a17~0 8)) (.cse19 (<= 8 ~a17~0)) (.cse11 (= ~a19~0 |old(~a19~0)|)) (.cse12 (<= |old(~a28~0)| ~a28~0)) (.cse26 (= 1 ~a25~0))) (let ((.cse4 (and .cse24 .cse9 .cse20 .cse19 .cse11 .cse12 .cse26)) (.cse21 (= ~a25~0 |old(~a25~0)|)) (.cse23 (<= ~a28~0 9)) (.cse22 (not (<= 9 |old(~a28~0)|))) (.cse1 (not (<= |old(~a28~0)| 9))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse7 (not (<= |old(~a28~0)| 7))) (.cse2 (not (<= 8 |old(~a17~0)|))) (.cse3 (not (= 1 |old(~a25~0)|))) (.cse5 (not (<= |old(~a17~0)| 8))) (.cse6 (not (<= |old(~a11~0)| 0))) (.cse14 (not (<= |old(~a28~0)| 10))) (.cse8 (<= ~a17~0 |old(~a17~0)|)) (.cse10 (or .cse24 (< 0 |old(~a11~0)|))) (.cse25 (<= ~a28~0 10)) (.cse16 (<= ~a25~0 0)) (.cse15 (not (<= |old(~a25~0)| 0))) (.cse18 (not (<= |old(~a19~0)| 0))) (.cse13 (not (<= |old(~a17~0)| 7))) (.cse17 (not (<= 10 |old(~a28~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (or .cse0 .cse7 (and .cse8 .cse9 .cse10 .cse11 .cse12) .cse13 .cse5) (or .cse0 .cse14 .cse15 .cse16 .cse17 .cse5) (or .cse0 .cse2 .cse3 (not (<= 11 |old(~a28~0)|)) .cse4 .cse5 .cse6) (or .cse1 .cse2 .cse18 (and .cse9 .cse19 .cse10 .cse20 .cse11 .cse21 .cse12) .cse5) (or .cse0 .cse22 (and .cse20 .cse19 .cse23 .cse11 .cse12 .cse21) .cse1 .cse2 .cse15 .cse5) (or .cse22 .cse1 .cse18 (and .cse8 .cse10 .cse23 .cse11 .cse12) .cse5) (or .cse0 .cse7 .cse15 (and .cse24 .cse9 .cse20 .cse11 .cse12 .cse21) .cse5 .cse6) (or .cse0 .cse14 (and .cse8 .cse10 .cse25 .cse11 .cse12) .cse17 .cse5) (or .cse0 .cse22 .cse1 .cse2 .cse3 (and .cse20 .cse19 .cse23 .cse11 .cse12 .cse26) .cse5) (or .cse0 .cse24 .cse22 .cse1 .cse2 .cse15 .cse5 .cse6) (or .cse0 .cse7 .cse2 .cse3 (and .cse9 .cse20 .cse19 .cse11 .cse12 .cse26) .cse5) (or (and .cse24 .cse20 .cse19 .cse25 .cse11 .cse12 .cse26) .cse14 .cse2 .cse3 .cse18 .cse5 .cse6) (or .cse14 (and .cse8 .cse10 .cse25 .cse16 .cse11 .cse12) .cse15 .cse18 .cse13 .cse17)))) [2020-07-21 11:28:30,181 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,181 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,181 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,181 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 11:28:30,181 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 11:28:30,182 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 11:28:30,182 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 11:28:30,182 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 11:28:30,182 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 11:28:30,182 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 11:28:30,182 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 11:28:30,182 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 11:28:30,182 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 11:28:30,182 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 11:28:30,182 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 11:28:30,183 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 11:28:30,183 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,183 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,183 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,183 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,183 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,183 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,183 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 11:28:30,184 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 11:28:30,184 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 11:28:30,184 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 11:28:30,184 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 11:28:30,184 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 11:28:30,184 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 11:28:30,184 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 11:28:30,184 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 11:28:30,184 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 11:28:30,185 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 11:28:30,185 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 11:28:30,185 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 11:28:30,185 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 11:28:30,185 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 11:28:30,185 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 11:28:30,185 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,185 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,185 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,186 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,186 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:30,186 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 11:28:30,186 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 11:28:30,186 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 11:28:30,186 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 11:28:30,186 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 11:28:30,186 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 11:28:30,186 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 11:28:30,187 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 11:28:30,187 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 11:28:30,187 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 11:28:30,187 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 11:28:30,187 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 11:28:30,187 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 11:28:30,187 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 11:28:30,187 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 11:28:30,187 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 11:28:30,187 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 11:28:30,188 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 11:28:30,188 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 11:28:30,188 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:28:30,188 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-21 11:28:30,188 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:28:30,188 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:28:30,188 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-21 11:28:30,189 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse7 (<= ~a11~0 0)) (.cse10 (<= ~a17~0 7)) (.cse4 (<= ~a19~0 |old(~a19~0)|)) (.cse5 (<= ~a28~0 7)) (.cse3 (<= ~a17~0 8)) (.cse11 (< 7 |old(~a17~0)|)) (.cse13 (<= ~a19~0 0)) (.cse14 (<= ~a28~0 9)) (.cse9 (<= ~a25~0 0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= 8 ~a17~0)) (.cse8 (<= ~a28~0 10)) (.cse12 (<= 9 ~a28~0)) (.cse6 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse7 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse8 .cse9 .cse10 .cse11 .cse12 .cse13) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse7 .cse2 (<= 1 ~a19~0) .cse4 .cse6) (and .cse1 .cse2 .cse14 .cse13) (and .cse1 .cse7 .cse2 .cse8 .cse13 .cse6) (and .cse0 .cse3 .cse8 (<= 10 ~a28~0)) (and .cse0 .cse3 .cse10 .cse4 .cse11 .cse5) (and .cse3 .cse14 .cse11 .cse12 .cse13) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse1 .cse2 .cse14 .cse9 .cse12) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse1 .cse2 .cse8 .cse12 .cse6) (not (<= |old(~a17~0)| 8)))) [2020-07-21 11:28:30,189 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 11:28:30,189 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 11:28:30,189 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse7 (<= ~a11~0 0)) (.cse10 (<= ~a17~0 7)) (.cse4 (<= ~a19~0 |old(~a19~0)|)) (.cse5 (<= ~a28~0 7)) (.cse3 (<= ~a17~0 8)) (.cse11 (< 7 |old(~a17~0)|)) (.cse13 (<= ~a19~0 0)) (.cse14 (<= ~a28~0 9)) (.cse9 (<= ~a25~0 0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= 8 ~a17~0)) (.cse8 (<= ~a28~0 10)) (.cse12 (<= 9 ~a28~0)) (.cse6 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse7 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse8 .cse9 .cse10 .cse11 .cse12 .cse13) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse7 .cse2 (<= 1 ~a19~0) .cse4 .cse6) (and .cse1 .cse2 .cse14 .cse13) (and .cse1 .cse7 .cse2 .cse8 .cse13 .cse6) (and .cse0 .cse3 .cse8 (<= 10 ~a28~0)) (and .cse0 .cse3 .cse10 .cse4 .cse11 .cse5) (and .cse3 .cse14 .cse11 .cse12 .cse13) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse1 .cse2 .cse14 .cse9 .cse12) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse1 .cse2 .cse8 .cse12 .cse6) (not (<= |old(~a17~0)| 8)))) [2020-07-21 11:28:30,189 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 11:28:30,189 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 11:28:30,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:28:30 BoogieIcfgContainer [2020-07-21 11:28:30,213 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:28:30,214 INFO L168 Benchmark]: Toolchain (without parser) took 25310.78 ms. Allocated memory was 139.5 MB in the beginning and 583.5 MB in the end (delta: 444.1 MB). Free memory was 101.8 MB in the beginning and 424.3 MB in the end (delta: -322.5 MB). Peak memory consumption was 426.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:28:30,215 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 11:28:30,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.27 ms. Allocated memory was 139.5 MB in the beginning and 206.0 MB in the end (delta: 66.6 MB). Free memory was 101.3 MB in the beginning and 173.6 MB in the end (delta: -72.3 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:28:30,217 INFO L168 Benchmark]: Boogie Preprocessor took 113.16 ms. Allocated memory is still 206.0 MB. Free memory was 173.6 MB in the beginning and 168.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. [2020-07-21 11:28:30,217 INFO L168 Benchmark]: RCFGBuilder took 1321.07 ms. Allocated memory was 206.0 MB in the beginning and 238.6 MB in the end (delta: 32.5 MB). Free memory was 168.0 MB in the beginning and 184.5 MB in the end (delta: -16.5 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2020-07-21 11:28:30,218 INFO L168 Benchmark]: TraceAbstraction took 23133.58 ms. Allocated memory was 238.6 MB in the beginning and 583.5 MB in the end (delta: 345.0 MB). Free memory was 183.0 MB in the beginning and 424.3 MB in the end (delta: -241.3 MB). Peak memory consumption was 408.3 MB. Max. memory is 7.1 GB. [2020-07-21 11:28:30,221 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 139.5 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.27 ms. Allocated memory was 139.5 MB in the beginning and 206.0 MB in the end (delta: 66.6 MB). Free memory was 101.3 MB in the beginning and 173.6 MB in the end (delta: -72.3 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.16 ms. Allocated memory is still 206.0 MB. Free memory was 173.6 MB in the beginning and 168.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1321.07 ms. Allocated memory was 206.0 MB in the beginning and 238.6 MB in the end (delta: 32.5 MB). Free memory was 168.0 MB in the beginning and 184.5 MB in the end (delta: -16.5 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23133.58 ms. Allocated memory was 238.6 MB in the beginning and 583.5 MB in the end (delta: 345.0 MB). Free memory was 183.0 MB in the beginning and 424.3 MB in the end (delta: -241.3 MB). Peak memory consumption was 408.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 442]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((((!(1 == \old(a19)) || ((((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a17 <= 8) && a19 <= \old(a19)) && a28 <= 7) && 1 == a25)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= \old(a28)) && a25 == \old(a25))) || (((((a28 <= 10 && a25 <= 0) && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || !(\old(a28) <= 7)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && 1 <= a19) && a19 <= \old(a19)) && 1 == a25)) || (((a17 <= \old(a17) && 8 <= a17) && a28 <= 9) && a19 <= 0)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && a28 <= 10) && a19 <= 0) && 1 == a25)) || (((1 == a19 && a17 <= 8) && a28 <= 10) && 10 <= a28)) || (((((1 == a19 && a17 <= 8) && a17 <= 7) && a19 <= \old(a19)) && 7 < \old(a17)) && a28 <= 7)) || ((((a17 <= 8 && a28 <= 9) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || !(\old(a11) <= 0)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 9) && a25 <= 0) && 9 <= a28)) || !(\old(a25) <= 0)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 10) && 9 <= a28) && 1 == a25)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.0s, OverallIterations: 13, TraceHistogramMax: 5, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1150 SDtfs, 5151 SDslu, 651 SDs, 0 SdLazy, 8855 SolverSat, 1245 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3428 GetRequests, 3354 SyntacticMatches, 14 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4995occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 2254 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 229 PreInvPairs, 279 NumberOfFragments, 1074 HoareAnnotationTreeSize, 229 FomulaSimplifications, 5199 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4846 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 2005 NumberOfCodeBlocks, 2005 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3385 ConstructedInterpolants, 0 QuantifiedInterpolants, 1106815 SizeOfPredicates, 17 NumberOfNonLiveVariables, 5452 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 21 InterpolantComputations, 6 PerfectInterpolantSequences, 1954/2073 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...