/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_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:35:27,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:35:27,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:35:27,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:35:27,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:35:27,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:35:27,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:35:27,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:35:27,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:35:27,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:35:27,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:35:27,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:35:27,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:35:27,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:35:27,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:35:27,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:35:27,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:35:27,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:35:27,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:35:27,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:35:27,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:35:27,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:35:27,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:35:27,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:35:27,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 11:35:27,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:35:27,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:35:27,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:35:27,821 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 11:35:27,844 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:35:27,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:35:27,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:35:27,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:35:27,846 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:35:27,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:35:27,846 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:35:27,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:35:27,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:35:27,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:35:27,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:35:27,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:35:27,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:35:27,848 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:35:27,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:35:27,848 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:35:27,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:35:27,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:35:27,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:35:27,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:35:27,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:35:27,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:35:27,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:35:27,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:35:27,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:35:27,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:35:27,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:27,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:35:27,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:35:27,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 11:35:28,130 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:35:28,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:35:28,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:35:28,149 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:35:28,150 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:35:28,151 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-20 11:35:28,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2847f79e/481603bdfedd49ce813ead254c191285/FLAG5ceceb974 [2020-07-20 11:35:28,864 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:35:28,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-20 11:35:28,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2847f79e/481603bdfedd49ce813ead254c191285/FLAG5ceceb974 [2020-07-20 11:35:29,084 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2847f79e/481603bdfedd49ce813ead254c191285 [2020-07-20 11:35:29,095 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:35:29,098 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:35:29,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:35:29,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:35:29,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:35:29,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:35:29" (1/1) ... [2020-07-20 11:35:29,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4214c77f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:29, skipping insertion in model container [2020-07-20 11:35:29,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:35:29" (1/1) ... [2020-07-20 11:35:29,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:35:29,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:35:29,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:35:29,717 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:35:29,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:35:29,868 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:35:29,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:29 WrapperNode [2020-07-20 11:35:29,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:35:29,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:35:29,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:35:29,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:35:29,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:29" (1/1) ... [2020-07-20 11:35:29,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:29" (1/1) ... [2020-07-20 11:35:29,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:29" (1/1) ... [2020-07-20 11:35:29,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:29" (1/1) ... [2020-07-20 11:35:29,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:29" (1/1) ... [2020-07-20 11:35:29,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:29" (1/1) ... [2020-07-20 11:35:29,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:29" (1/1) ... [2020-07-20 11:35:29,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:35:29,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:35:29,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:35:29,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:35:29,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:35:30,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:35:30,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:35:30,083 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 11:35:30,083 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:35:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 11:35:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:35:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:35:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 11:35:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:35:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:35:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:35:31,302 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:35:31,303 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 11:35:31,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:35:31 BoogieIcfgContainer [2020-07-20 11:35:31,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:35:31,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:35:31,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:35:31,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:35:31,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:35:29" (1/3) ... [2020-07-20 11:35:31,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5831cd5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:35:31, skipping insertion in model container [2020-07-20 11:35:31,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:29" (2/3) ... [2020-07-20 11:35:31,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5831cd5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:35:31, skipping insertion in model container [2020-07-20 11:35:31,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:35:31" (3/3) ... [2020-07-20 11:35:31,319 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label26.c [2020-07-20 11:35:31,330 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:35:31,339 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:35:31,354 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:35:31,383 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:35:31,384 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:35:31,384 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:35:31,384 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:35:31,384 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:35:31,385 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:35:31,385 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:35:31,385 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:35:31,412 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 11:35:31,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-20 11:35:31,427 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:31,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:31,429 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:31,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:31,436 INFO L82 PathProgramCache]: Analyzing trace with hash 2085668238, now seen corresponding path program 1 times [2020-07-20 11:35:31,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:31,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170927589] [2020-07-20 11:35:31,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:31,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:35:31,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:31,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:31,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:35:31,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170927589] [2020-07-20 11:35:31,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:35:31,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:35:31,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388356019] [2020-07-20 11:35:31,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:35:31,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:31,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:35:31,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:31,777 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 11:35:32,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:32,734 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-20 11:35:32,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:35:32,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-20 11:35:32,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:32,753 INFO L225 Difference]: With dead ends: 615 [2020-07-20 11:35:32,754 INFO L226 Difference]: Without dead ends: 317 [2020-07-20 11:35:32,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:32,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-20 11:35:32,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-20 11:35:32,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-20 11:35:32,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-20 11:35:32,834 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 142 [2020-07-20 11:35:32,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:32,835 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-20 11:35:32,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:35:32,836 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-20 11:35:32,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-20 11:35:32,841 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:32,842 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:33,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:33,059 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:33,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:33,060 INFO L82 PathProgramCache]: Analyzing trace with hash -2119639181, now seen corresponding path program 1 times [2020-07-20 11:35:33,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:33,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1693833482] [2020-07-20 11:35:33,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:33,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:35:33,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:33,334 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:33,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:35:33,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1693833482] [2020-07-20 11:35:33,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:35:33,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:35:33,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79671509] [2020-07-20 11:35:33,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:35:33,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:33,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:35:33,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:35:33,339 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 5 states. [2020-07-20 11:35:33,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:33,815 INFO L93 Difference]: Finished difference Result 629 states and 962 transitions. [2020-07-20 11:35:33,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 11:35:33,816 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-07-20 11:35:33,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:33,820 INFO L225 Difference]: With dead ends: 629 [2020-07-20 11:35:33,821 INFO L226 Difference]: Without dead ends: 318 [2020-07-20 11:35:33,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:35:33,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-07-20 11:35:33,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 308. [2020-07-20 11:35:33,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-07-20 11:35:33,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 435 transitions. [2020-07-20 11:35:33,873 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 435 transitions. Word has length 157 [2020-07-20 11:35:33,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:33,874 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 435 transitions. [2020-07-20 11:35:33,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:35:33,874 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 435 transitions. [2020-07-20 11:35:33,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-20 11:35:33,887 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:33,887 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:34,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:34,088 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:34,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:34,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1005880998, now seen corresponding path program 1 times [2020-07-20 11:35:34,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:34,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435436251] [2020-07-20 11:35:34,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:34,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:35:34,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:34,245 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:34,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:35:34,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435436251] [2020-07-20 11:35:34,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:35:34,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:35:34,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005023947] [2020-07-20 11:35:34,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:35:34,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:34,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:35:34,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:35:34,252 INFO L87 Difference]: Start difference. First operand 308 states and 435 transitions. Second operand 5 states. [2020-07-20 11:35:35,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:35,108 INFO L93 Difference]: Finished difference Result 923 states and 1328 transitions. [2020-07-20 11:35:35,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:35:35,110 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2020-07-20 11:35:35,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:35,114 INFO L225 Difference]: With dead ends: 923 [2020-07-20 11:35:35,114 INFO L226 Difference]: Without dead ends: 621 [2020-07-20 11:35:35,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:35:35,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2020-07-20 11:35:35,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 459. [2020-07-20 11:35:35,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-07-20 11:35:35,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 601 transitions. [2020-07-20 11:35:35,143 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 601 transitions. Word has length 164 [2020-07-20 11:35:35,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:35,143 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 601 transitions. [2020-07-20 11:35:35,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:35:35,144 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 601 transitions. [2020-07-20 11:35:35,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-20 11:35:35,147 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:35,147 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:35,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:35,361 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:35,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:35,361 INFO L82 PathProgramCache]: Analyzing trace with hash 612982551, now seen corresponding path program 1 times [2020-07-20 11:35:35,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:35,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [928440879] [2020-07-20 11:35:35,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:35,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:35:35,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:35,535 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:35,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:35:35,630 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:35,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [928440879] [2020-07-20 11:35:35,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:35:35,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:35:35,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129269523] [2020-07-20 11:35:35,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:35:35,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:35,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:35:35,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:35:35,633 INFO L87 Difference]: Start difference. First operand 459 states and 601 transitions. Second operand 6 states. [2020-07-20 11:35:36,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:36,521 INFO L93 Difference]: Finished difference Result 1075 states and 1439 transitions. [2020-07-20 11:35:36,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:35:36,522 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 173 [2020-07-20 11:35:36,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:36,526 INFO L225 Difference]: With dead ends: 1075 [2020-07-20 11:35:36,526 INFO L226 Difference]: Without dead ends: 622 [2020-07-20 11:35:36,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 340 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:35:36,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2020-07-20 11:35:36,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 612. [2020-07-20 11:35:36,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-07-20 11:35:36,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 802 transitions. [2020-07-20 11:35:36,576 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 802 transitions. Word has length 173 [2020-07-20 11:35:36,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:36,576 INFO L479 AbstractCegarLoop]: Abstraction has 612 states and 802 transitions. [2020-07-20 11:35:36,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:35:36,577 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 802 transitions. [2020-07-20 11:35:36,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-20 11:35:36,580 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:36,580 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:36,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:36,793 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:36,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:36,794 INFO L82 PathProgramCache]: Analyzing trace with hash -393389681, now seen corresponding path program 1 times [2020-07-20 11:35:36,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:36,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286490439] [2020-07-20 11:35:36,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:36,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:35:36,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:36,938 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:35:36,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:35:36,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286490439] [2020-07-20 11:35:36,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:35:36,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:35:36,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951589022] [2020-07-20 11:35:36,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:35:36,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:36,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:35:36,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:36,941 INFO L87 Difference]: Start difference. First operand 612 states and 802 transitions. Second operand 3 states. [2020-07-20 11:35:37,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:37,500 INFO L93 Difference]: Finished difference Result 1667 states and 2203 transitions. [2020-07-20 11:35:37,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:35:37,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-07-20 11:35:37,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:37,511 INFO L225 Difference]: With dead ends: 1667 [2020-07-20 11:35:37,511 INFO L226 Difference]: Without dead ends: 1061 [2020-07-20 11:35:37,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:37,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2020-07-20 11:35:37,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1060. [2020-07-20 11:35:37,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2020-07-20 11:35:37,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1337 transitions. [2020-07-20 11:35:37,577 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1337 transitions. Word has length 177 [2020-07-20 11:35:37,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:37,579 INFO L479 AbstractCegarLoop]: Abstraction has 1060 states and 1337 transitions. [2020-07-20 11:35:37,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:35:37,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1337 transitions. [2020-07-20 11:35:37,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-20 11:35:37,586 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:37,587 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:37,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:37,798 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:37,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:37,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1336045319, now seen corresponding path program 1 times [2020-07-20 11:35:37,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:37,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590816390] [2020-07-20 11:35:37,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:37,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:35:37,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:37,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:35:38,033 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:38,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590816390] [2020-07-20 11:35:38,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:35:38,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:35:38,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056931486] [2020-07-20 11:35:38,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:35:38,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:38,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:35:38,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:35:38,035 INFO L87 Difference]: Start difference. First operand 1060 states and 1337 transitions. Second operand 7 states. [2020-07-20 11:35:39,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:39,723 INFO L93 Difference]: Finished difference Result 3296 states and 4321 transitions. [2020-07-20 11:35:39,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:35:39,724 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-07-20 11:35:39,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:39,735 INFO L225 Difference]: With dead ends: 3296 [2020-07-20 11:35:39,736 INFO L226 Difference]: Without dead ends: 2242 [2020-07-20 11:35:39,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 357 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:35:39,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2020-07-20 11:35:39,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 2092. [2020-07-20 11:35:39,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2020-07-20 11:35:39,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2524 transitions. [2020-07-20 11:35:39,805 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2524 transitions. Word has length 181 [2020-07-20 11:35:39,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:39,805 INFO L479 AbstractCegarLoop]: Abstraction has 2092 states and 2524 transitions. [2020-07-20 11:35:39,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:35:39,805 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2524 transitions. [2020-07-20 11:35:39,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-07-20 11:35:39,813 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:39,814 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:40,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:40,028 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:40,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:40,029 INFO L82 PathProgramCache]: Analyzing trace with hash 441214513, now seen corresponding path program 1 times [2020-07-20 11:35:40,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:40,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524944023] [2020-07-20 11:35:40,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:40,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:35:40,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:40,244 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:40,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:35:40,364 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:40,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524944023] [2020-07-20 11:35:40,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:35:40,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:35:40,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765793655] [2020-07-20 11:35:40,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:35:40,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:40,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:35:40,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:35:40,369 INFO L87 Difference]: Start difference. First operand 2092 states and 2524 transitions. Second operand 7 states. [2020-07-20 11:35:41,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:41,299 INFO L93 Difference]: Finished difference Result 4635 states and 5681 transitions. [2020-07-20 11:35:41,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:35:41,300 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-07-20 11:35:41,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:41,320 INFO L225 Difference]: With dead ends: 4635 [2020-07-20 11:35:41,320 INFO L226 Difference]: Without dead ends: 2553 [2020-07-20 11:35:41,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:35:41,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2553 states. [2020-07-20 11:35:41,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2553 to 2110. [2020-07-20 11:35:41,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2110 states. [2020-07-20 11:35:41,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2110 states to 2110 states and 2551 transitions. [2020-07-20 11:35:41,409 INFO L78 Accepts]: Start accepts. Automaton has 2110 states and 2551 transitions. Word has length 193 [2020-07-20 11:35:41,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:41,409 INFO L479 AbstractCegarLoop]: Abstraction has 2110 states and 2551 transitions. [2020-07-20 11:35:41,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:35:41,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2110 states and 2551 transitions. [2020-07-20 11:35:41,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-07-20 11:35:41,417 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:41,418 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:41,631 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:41,632 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:41,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:41,632 INFO L82 PathProgramCache]: Analyzing trace with hash 2102913996, now seen corresponding path program 1 times [2020-07-20 11:35:41,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:41,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809297388] [2020-07-20 11:35:41,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:41,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:35:41,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:41,787 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-20 11:35:41,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:35:41,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809297388] [2020-07-20 11:35:41,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:35:41,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:35:41,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379486519] [2020-07-20 11:35:41,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:35:41,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:41,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:35:41,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:41,790 INFO L87 Difference]: Start difference. First operand 2110 states and 2551 transitions. Second operand 3 states. [2020-07-20 11:35:42,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:42,337 INFO L93 Difference]: Finished difference Result 3780 states and 4548 transitions. [2020-07-20 11:35:42,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:35:42,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-07-20 11:35:42,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:42,354 INFO L225 Difference]: With dead ends: 3780 [2020-07-20 11:35:42,354 INFO L226 Difference]: Without dead ends: 2110 [2020-07-20 11:35:42,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:42,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2020-07-20 11:35:42,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 1964. [2020-07-20 11:35:42,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1964 states. [2020-07-20 11:35:42,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1964 states to 1964 states and 2295 transitions. [2020-07-20 11:35:42,430 INFO L78 Accepts]: Start accepts. Automaton has 1964 states and 2295 transitions. Word has length 201 [2020-07-20 11:35:42,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:42,430 INFO L479 AbstractCegarLoop]: Abstraction has 1964 states and 2295 transitions. [2020-07-20 11:35:42,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:35:42,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1964 states and 2295 transitions. [2020-07-20 11:35:42,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-20 11:35:42,442 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:42,442 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:42,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:42,657 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:42,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:42,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1557426684, now seen corresponding path program 1 times [2020-07-20 11:35:42,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:42,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057493687] [2020-07-20 11:35:42,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:42,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:35:42,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:42,815 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:42,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:35:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:42,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057493687] [2020-07-20 11:35:42,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:35:42,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:35:42,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183228273] [2020-07-20 11:35:42,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:35:42,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:42,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:35:42,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:35:42,907 INFO L87 Difference]: Start difference. First operand 1964 states and 2295 transitions. Second operand 6 states. [2020-07-20 11:35:43,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:43,662 INFO L93 Difference]: Finished difference Result 3943 states and 4694 transitions. [2020-07-20 11:35:43,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:35:43,663 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2020-07-20 11:35:43,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:43,672 INFO L225 Difference]: With dead ends: 3943 [2020-07-20 11:35:43,673 INFO L226 Difference]: Without dead ends: 1829 [2020-07-20 11:35:43,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:35:43,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2020-07-20 11:35:43,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1803. [2020-07-20 11:35:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1803 states. [2020-07-20 11:35:43,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 1954 transitions. [2020-07-20 11:35:43,733 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 1954 transitions. Word has length 221 [2020-07-20 11:35:43,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:43,734 INFO L479 AbstractCegarLoop]: Abstraction has 1803 states and 1954 transitions. [2020-07-20 11:35:43,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:35:43,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 1954 transitions. [2020-07-20 11:35:43,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-07-20 11:35:43,741 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:43,741 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:43,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:43,956 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:43,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:43,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1660093140, now seen corresponding path program 1 times [2020-07-20 11:35:43,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:43,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948227721] [2020-07-20 11:35:43,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:44,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:35:44,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:44,127 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:35:44,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:35:44,228 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:35:44,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [948227721] [2020-07-20 11:35:44,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:35:44,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:35:44,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888043308] [2020-07-20 11:35:44,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:35:44,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:44,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:35:44,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:35:44,231 INFO L87 Difference]: Start difference. First operand 1803 states and 1954 transitions. Second operand 6 states. [2020-07-20 11:35:45,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:45,055 INFO L93 Difference]: Finished difference Result 4188 states and 4550 transitions. [2020-07-20 11:35:45,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 11:35:45,058 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 247 [2020-07-20 11:35:45,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:45,066 INFO L225 Difference]: With dead ends: 4188 [2020-07-20 11:35:45,067 INFO L226 Difference]: Without dead ends: 1807 [2020-07-20 11:35:45,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 490 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:35:45,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-07-20 11:35:45,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1363. [2020-07-20 11:35:45,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1363 states. [2020-07-20 11:35:45,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1441 transitions. [2020-07-20 11:35:45,115 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1441 transitions. Word has length 247 [2020-07-20 11:35:45,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:45,115 INFO L479 AbstractCegarLoop]: Abstraction has 1363 states and 1441 transitions. [2020-07-20 11:35:45,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:35:45,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1441 transitions. [2020-07-20 11:35:45,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-07-20 11:35:45,122 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:45,122 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-07-20 11:35:45,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:45,338 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:45,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:45,339 INFO L82 PathProgramCache]: Analyzing trace with hash 246093775, now seen corresponding path program 1 times [2020-07-20 11:35:45,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:45,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21855502] [2020-07-20 11:35:45,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:45,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:35:45,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:45,524 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-20 11:35:45,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:35:45,640 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 165 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-20 11:35:45,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21855502] [2020-07-20 11:35:45,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:35:45,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:35:45,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096181308] [2020-07-20 11:35:45,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:35:45,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:45,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:35:45,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:35:45,646 INFO L87 Difference]: Start difference. First operand 1363 states and 1441 transitions. Second operand 6 states. [2020-07-20 11:35:46,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:46,540 INFO L93 Difference]: Finished difference Result 2737 states and 2911 transitions. [2020-07-20 11:35:46,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:35:46,541 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 282 [2020-07-20 11:35:46,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:46,546 INFO L225 Difference]: With dead ends: 2737 [2020-07-20 11:35:46,546 INFO L226 Difference]: Without dead ends: 1380 [2020-07-20 11:35:46,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 560 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:35:46,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-07-20 11:35:46,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1367. [2020-07-20 11:35:46,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2020-07-20 11:35:46,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1429 transitions. [2020-07-20 11:35:46,584 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1429 transitions. Word has length 282 [2020-07-20 11:35:46,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:46,584 INFO L479 AbstractCegarLoop]: Abstraction has 1367 states and 1429 transitions. [2020-07-20 11:35:46,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:35:46,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1429 transitions. [2020-07-20 11:35:46,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-07-20 11:35:46,590 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:46,591 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:46,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:46,806 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:46,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:46,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1557581639, now seen corresponding path program 1 times [2020-07-20 11:35:46,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:46,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931432209] [2020-07-20 11:35:46,807 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 [2020-07-20 11:35:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:46,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:35:46,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:47,000 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-07-20 11:35:47,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:35:47,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1931432209] [2020-07-20 11:35:47,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:35:47,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:35:47,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724051439] [2020-07-20 11:35:47,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:35:47,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:47,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:35:47,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:47,003 INFO L87 Difference]: Start difference. First operand 1367 states and 1429 transitions. Second operand 3 states. [2020-07-20 11:35:47,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:47,474 INFO L93 Difference]: Finished difference Result 3302 states and 3466 transitions. [2020-07-20 11:35:47,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:35:47,474 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 305 [2020-07-20 11:35:47,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:47,475 INFO L225 Difference]: With dead ends: 3302 [2020-07-20 11:35:47,475 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:35:47,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:47,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:35:47,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:35:47,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:35:47,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:35:47,486 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 305 [2020-07-20 11:35:47,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:47,486 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:35:47,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:35:47,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:35:47,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:35:47,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:47,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:35:48,866 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 74 [2020-07-20 11:35:49,315 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2020-07-20 11:35:49,751 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2020-07-20 11:35:49,756 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:35:49,758 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)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0)) [2020-07-20 11:35:49,759 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:35:49,759 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,759 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,760 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,760 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,760 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,760 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 11:35:49,760 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 11:35:49,760 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 11:35:49,760 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 11:35:49,760 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 11:35:49,761 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 11:35:49,761 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 11:35:49,761 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 11:35:49,761 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 11:35:49,761 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 11:35:49,761 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 11:35:49,761 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 11:35:49,761 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 11:35:49,761 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,761 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,762 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,762 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,762 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 11:35:49,762 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,762 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 11:35:49,762 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 11:35:49,762 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 11:35:49,762 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 11:35:49,763 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 11:35:49,763 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 11:35:49,763 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 11:35:49,763 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 11:35:49,763 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 11:35:49,764 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 11:35:49,764 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 11:35:49,764 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 11:35:49,764 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 11:35:49,764 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 11:35:49,764 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 11:35:49,764 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,766 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,766 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,766 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,766 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,767 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 580) no Hoare annotation was computed. [2020-07-20 11:35:49,767 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 11:35:49,767 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 11:35:49,767 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 11:35:49,767 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 11:35:49,767 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 11:35:49,767 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 11:35:49,767 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 11:35:49,767 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 11:35:49,767 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 11:35:49,768 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 11:35:49,768 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 11:35:49,768 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,768 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,768 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,768 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,768 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,768 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 11:35:49,768 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 11:35:49,768 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 11:35:49,768 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 11:35:49,768 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 11:35:49,768 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 11:35:49,768 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 11:35:49,769 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 11:35:49,769 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 11:35:49,769 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 11:35:49,769 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 11:35:49,769 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 11:35:49,769 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 11:35:49,769 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,769 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,769 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,770 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,770 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,770 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 11:35:49,770 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 11:35:49,770 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 11:35:49,770 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 11:35:49,770 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 11:35:49,770 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 11:35:49,771 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 11:35:49,771 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 11:35:49,771 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 11:35:49,771 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 11:35:49,771 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 11:35:49,771 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 11:35:49,771 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 11:35:49,771 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 11:35:49,772 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 11:35:49,772 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 11:35:49,772 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,772 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,772 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,772 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,772 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 11:35:49,772 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,773 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 11:35:49,773 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,773 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 11:35:49,773 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 11:35:49,773 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 11:35:49,773 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,773 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,773 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 11:35:49,774 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 11:35:49,774 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 11:35:49,774 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 11:35:49,774 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 11:35:49,774 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 11:35:49,774 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 11:35:49,774 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 11:35:49,774 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 11:35:49,774 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 11:35:49,775 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 11:35:49,775 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,775 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,775 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,775 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,775 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,775 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,775 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 11:35:49,775 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 11:35:49,776 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 11:35:49,776 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 11:35:49,776 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 11:35:49,776 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 11:35:49,776 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 11:35:49,776 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 11:35:49,776 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 11:35:49,776 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 11:35:49,777 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 11:35:49,777 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,777 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,777 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,777 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,777 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,777 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,777 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 11:35:49,777 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 11:35:49,778 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 11:35:49,778 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 11:35:49,778 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 11:35:49,778 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 11:35:49,778 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 11:35:49,778 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 11:35:49,778 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 11:35:49,778 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 11:35:49,778 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 11:35:49,779 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 11:35:49,779 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 11:35:49,779 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 11:35:49,779 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,779 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,779 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,780 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse7 (<= ~a17~0 |old(~a17~0)|)) (.cse18 (<= ~a28~0 9)) (.cse9 (= ~a19~0 |old(~a19~0)|)) (.cse10 (<= |old(~a28~0)| ~a28~0))) (let ((.cse4 (and .cse7 .cse18 .cse9 .cse10)) (.cse5 (not (<= |old(~a28~0)| 10))) (.cse2 (not (<= |old(~a17~0)| 7))) (.cse8 (<= ~a28~0 10)) (.cse12 (not (<= 9 |old(~a28~0)|))) (.cse0 (not (<= |old(~a28~0)| 9))) (.cse1 (not (<= |old(~a19~0)| 0))) (.cse13 (= 1 ~a11~0)) (.cse19 (not (<= |old(~a28~0)| 7))) (.cse14 (not (= 1 |old(~a11~0)|))) (.cse6 (not (<= 10 |old(~a28~0)|))) (.cse16 (<= ~a28~0 |old(~a28~0)|)) (.cse11 (not (= 1 |old(~a19~0)|))) (.cse17 (<= ~a17~0 8)) (.cse21 (<= 8 ~a17~0)) (.cse15 (not (<= |old(~a28~0)| 8))) (.cse20 (not (<= 8 |old(~a17~0)|))) (.cse3 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse6 .cse3 (and .cse7 .cse8 .cse9 .cse10)) (or .cse11 .cse12 .cse0 .cse3 .cse4) (or .cse11 .cse5 .cse2 .cse6 (and .cse7 .cse13 .cse8 .cse9 .cse10) .cse14) (or .cse15 (and .cse16 .cse17 .cse9 .cse10) .cse1 .cse3) (or .cse11 .cse12 .cse13 .cse0 .cse3 .cse14) (or (and .cse13 .cse17 .cse18 .cse9 .cse10) .cse0 .cse1 .cse3 .cse14) (or .cse11 .cse19 .cse3 (and .cse7 .cse16 .cse9 .cse10)) (or .cse11 .cse13 .cse19 .cse3 .cse14) (or .cse11 .cse20 .cse6 (and .cse16 .cse17 .cse21 .cse9 .cse10) .cse3) (or .cse11 (and .cse17 .cse21 (<= ~a28~0 8) .cse9 .cse10) .cse15 .cse20 .cse3)))) [2020-07-20 11:35:49,780 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,780 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,780 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,780 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 11:35:49,780 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 11:35:49,781 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 11:35:49,781 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 11:35:49,781 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 11:35:49,781 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 11:35:49,781 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 11:35:49,781 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 11:35:49,781 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 11:35:49,781 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 11:35:49,781 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 11:35:49,782 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 11:35:49,782 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 11:35:49,782 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,782 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,782 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,782 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,782 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,782 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,782 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 11:35:49,783 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 11:35:49,783 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 11:35:49,783 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 11:35:49,783 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 11:35:49,783 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 11:35:49,783 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 11:35:49,783 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 11:35:49,783 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 11:35:49,783 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 11:35:49,784 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 11:35:49,784 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 11:35:49,784 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 11:35:49,784 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 11:35:49,784 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 11:35:49,784 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 11:35:49,784 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,784 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,785 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,785 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,785 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:49,785 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 11:35:49,785 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 11:35:49,785 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 11:35:49,785 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 11:35:49,785 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 11:35:49,785 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 11:35:49,786 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 11:35:49,786 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 11:35:49,786 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 11:35:49,786 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 11:35:49,786 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 11:35:49,786 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 11:35:49,786 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 11:35:49,786 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 11:35:49,786 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 11:35:49,787 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 11:35:49,787 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 11:35:49,787 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 11:35:49,787 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 11:35:49,787 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:35:49,787 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-20 11:35:49,787 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:35:49,788 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:35:49,788 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 (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0))) [2020-07-20 11:35:49,788 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 0)) (.cse6 (= 1 ~a11~0)) (.cse2 (<= ~a28~0 10)) (.cse5 (<= ~a17~0 7)) (.cse4 (<= 9 ~a28~0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2 (<= 10 ~a28~0) .cse3) (and .cse0 .cse1 (<= ~a28~0 9) .cse4) (and .cse2 .cse5 .cse3) (not (<= 8 |old(~a17~0)|)) (and .cse6 .cse1 .cse2 .cse3) (and .cse1 (<= ~a28~0 8) .cse3) (and .cse0 .cse6 .cse2 .cse5 .cse4) (and .cse0 .cse1 (<= ~a28~0 7)) (not (<= |old(~a17~0)| 8)))) [2020-07-20 11:35:49,788 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 11:35:49,788 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 11:35:49,788 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 0)) (.cse6 (= 1 ~a11~0)) (.cse2 (<= ~a28~0 10)) (.cse5 (<= ~a17~0 7)) (.cse4 (<= 9 ~a28~0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2 (<= 10 ~a28~0) .cse3) (and .cse0 .cse1 (<= ~a28~0 9) .cse4) (and .cse2 .cse5 .cse3) (not (<= 8 |old(~a17~0)|)) (and .cse6 .cse1 .cse2 .cse3) (and .cse1 (<= ~a28~0 8) .cse3) (and .cse0 .cse6 .cse2 .cse5 .cse4) (and .cse0 .cse1 (<= ~a28~0 7)) (not (<= |old(~a17~0)| 8)))) [2020-07-20 11:35:49,789 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 11:35:49,789 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 11:35:49,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:35:49 BoogieIcfgContainer [2020-07-20 11:35:49,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:35:49,812 INFO L168 Benchmark]: Toolchain (without parser) took 20715.08 ms. Allocated memory was 137.4 MB in the beginning and 560.5 MB in the end (delta: 423.1 MB). Free memory was 99.4 MB in the beginning and 296.4 MB in the end (delta: -196.9 MB). Peak memory consumption was 391.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:35:49,812 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 11:35:49,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.67 ms. Allocated memory was 137.4 MB in the beginning and 204.5 MB in the end (delta: 67.1 MB). Free memory was 99.0 MB in the beginning and 171.5 MB in the end (delta: -72.5 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. [2020-07-20 11:35:49,814 INFO L168 Benchmark]: Boogie Preprocessor took 114.84 ms. Allocated memory is still 204.5 MB. Free memory was 171.5 MB in the beginning and 166.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 11:35:49,815 INFO L168 Benchmark]: RCFGBuilder took 1323.87 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 165.8 MB in the beginning and 181.3 MB in the end (delta: -15.5 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. [2020-07-20 11:35:49,816 INFO L168 Benchmark]: TraceAbstraction took 18498.81 ms. Allocated memory was 235.4 MB in the beginning and 560.5 MB in the end (delta: 325.1 MB). Free memory was 181.3 MB in the beginning and 296.4 MB in the end (delta: -115.0 MB). Peak memory consumption was 375.3 MB. Max. memory is 7.1 GB. [2020-07-20 11:35:49,819 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 770.67 ms. Allocated memory was 137.4 MB in the beginning and 204.5 MB in the end (delta: 67.1 MB). Free memory was 99.0 MB in the beginning and 171.5 MB in the end (delta: -72.5 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.84 ms. Allocated memory is still 204.5 MB. Free memory was 171.5 MB in the beginning and 166.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1323.87 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 165.8 MB in the beginning and 181.3 MB in the end (delta: -15.5 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18498.81 ms. Allocated memory was 235.4 MB in the beginning and 560.5 MB in the end (delta: 325.1 MB). Free memory was 181.3 MB in the beginning and 296.4 MB in the end (delta: -115.0 MB). Peak memory consumption was 375.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 580]: 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 <= 8) && 8 <= a17)) || !(\old(a28) <= 7)) || (((a17 <= 8 && a28 <= 10) && 10 <= a28) && a19 <= 0)) || (((1 == a19 && a17 <= 8) && a28 <= 9) && 9 <= a28)) || ((a28 <= 10 && a17 <= 7) && a19 <= 0)) || !(8 <= \old(a17))) || (((1 == a11 && a17 <= 8) && a28 <= 10) && a19 <= 0)) || ((a17 <= 8 && a28 <= 8) && a19 <= 0)) || ((((1 == a19 && 1 == a11) && a28 <= 10) && a17 <= 7) && 9 <= a28)) || ((1 == a19 && a17 <= 8) && a28 <= 7)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.3s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 902 SDtfs, 3641 SDslu, 506 SDs, 0 SdLazy, 7428 SolverSat, 1149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3759 GetRequests, 3695 SyntacticMatches, 8 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2110occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 1405 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 112 PreInvPairs, 150 NumberOfFragments, 607 HoareAnnotationTreeSize, 112 FomulaSimplifications, 10619 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3947 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 2443 NumberOfCodeBlocks, 2443 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3722 ConstructedInterpolants, 0 QuantifiedInterpolants, 1505080 SizeOfPredicates, 14 NumberOfNonLiveVariables, 5473 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 1565/1623 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...