/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:53:28,997 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 13:53:29,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 13:53:29,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 13:53:29,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 13:53:29,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 13:53:29,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 13:53:29,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 13:53:29,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 13:53:29,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 13:53:29,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:53:29,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:53:29,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:53:29,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:53:29,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:53:29,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:53:29,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:53:29,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:53:29,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:53:29,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:53:29,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:53:29,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:53:29,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:53:29,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:53:29,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:53:29,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:53:29,049 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 13:53:29,069 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:53:29,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:53:29,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:53:29,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:53:29,071 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:53:29,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:53:29,072 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:53:29,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:53:29,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:53:29,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:53:29,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:53:29,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:53:29,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:53:29,074 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:53:29,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:53:29,075 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:53:29,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:53:29,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:53:29,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:53:29,075 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:53:29,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:53:29,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:53:29,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:53:29,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:53:29,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:53:29,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:53:29,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:29,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:53:29,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:53:29,078 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 13:53:29,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:53:29,423 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:53:29,427 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:53:29,429 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:53:29,429 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:53:29,430 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label19.c [2020-07-21 13:53:29,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6999c1a9f/41366ece45e443ac8c3f21e013420799/FLAGf00fb7b8b [2020-07-21 13:53:30,038 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:53:30,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label19.c [2020-07-21 13:53:30,053 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6999c1a9f/41366ece45e443ac8c3f21e013420799/FLAGf00fb7b8b [2020-07-21 13:53:30,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6999c1a9f/41366ece45e443ac8c3f21e013420799 [2020-07-21 13:53:30,323 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:53:30,325 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:53:30,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:53:30,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:53:30,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:53:30,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:53:30" (1/1) ... [2020-07-21 13:53:30,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a680be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:53:30, skipping insertion in model container [2020-07-21 13:53:30,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:53:30" (1/1) ... [2020-07-21 13:53:30,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:53:30,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:53:30,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:53:30,860 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:53:31,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:53:31,121 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:53:31,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:53:31 WrapperNode [2020-07-21 13:53:31,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:53:31,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:53:31,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:53:31,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:53:31,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:53:31" (1/1) ... [2020-07-21 13:53:31,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:53:31" (1/1) ... [2020-07-21 13:53:31,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:53:31" (1/1) ... [2020-07-21 13:53:31,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:53:31" (1/1) ... [2020-07-21 13:53:31,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:53:31" (1/1) ... [2020-07-21 13:53:31,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:53:31" (1/1) ... [2020-07-21 13:53:31,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:53:31" (1/1) ... [2020-07-21 13:53:31,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:53:31,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:53:31,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:53:31,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:53:31,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:53:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:53:31,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:53:31,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:53:31,394 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:53:31,395 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:53:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:53:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:53:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:53:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:53:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:53:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:53:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:53:32,801 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:53:32,802 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:53:32,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:53:32 BoogieIcfgContainer [2020-07-21 13:53:32,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:53:32,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:53:32,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:53:32,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:53:32,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:53:30" (1/3) ... [2020-07-21 13:53:32,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0dbd4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:53:32, skipping insertion in model container [2020-07-21 13:53:32,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:53:31" (2/3) ... [2020-07-21 13:53:32,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0dbd4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:53:32, skipping insertion in model container [2020-07-21 13:53:32,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:53:32" (3/3) ... [2020-07-21 13:53:32,819 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label19.c [2020-07-21 13:53:32,831 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:53:32,841 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:53:32,857 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:53:32,885 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:53:32,886 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:53:32,886 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:53:32,886 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:53:32,886 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:53:32,887 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:53:32,887 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:53:32,887 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:53:32,913 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 13:53:32,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-21 13:53:32,922 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:53:32,923 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] [2020-07-21 13:53:32,923 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:53:32,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:53:32,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1418549242, now seen corresponding path program 1 times [2020-07-21 13:53:32,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:53:32,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445906380] [2020-07-21 13:53:32,941 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:33,061 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:53:33,062 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:53:33,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:53:33,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:53:33,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:53:33,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:53:33,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445906380] [2020-07-21 13:53:33,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:53:33,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:53:33,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013213276] [2020-07-21 13:53:33,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:53:33,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:53:33,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:53:33,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:53:33,165 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 13:53:34,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:34,318 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-21 13:53:34,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:53:34,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-07-21 13:53:34,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:34,338 INFO L225 Difference]: With dead ends: 586 [2020-07-21 13:53:34,338 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 13:53:34,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:53:34,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 13:53:34,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 13:53:34,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 13:53:34,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-21 13:53:34,428 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 35 [2020-07-21 13:53:34,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:34,429 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-21 13:53:34,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:53:34,429 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-21 13:53:34,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-07-21 13:53:34,435 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:53:34,435 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:53:34,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:34,637 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:53:34,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:53:34,638 INFO L82 PathProgramCache]: Analyzing trace with hash -945859230, now seen corresponding path program 1 times [2020-07-21 13:53:34,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:53:34,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186883326] [2020-07-21 13:53:34,639 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:34,734 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:53:34,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:53:34,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:53:34,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:53:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:53:34,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:53:34,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [186883326] [2020-07-21 13:53:34,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:53:34,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:53:34,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245723142] [2020-07-21 13:53:34,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:53:34,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:53:34,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:53:34,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:53:34,778 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2020-07-21 13:53:35,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:35,598 INFO L93 Difference]: Finished difference Result 868 states and 1337 transitions. [2020-07-21 13:53:35,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:53:35,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-07-21 13:53:35,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:35,606 INFO L225 Difference]: With dead ends: 868 [2020-07-21 13:53:35,606 INFO L226 Difference]: Without dead ends: 580 [2020-07-21 13:53:35,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:53:35,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-21 13:53:35,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-07-21 13:53:35,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-21 13:53:35,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 802 transitions. [2020-07-21 13:53:35,650 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 802 transitions. Word has length 105 [2020-07-21 13:53:35,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:35,652 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 802 transitions. [2020-07-21 13:53:35,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:53:35,652 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 802 transitions. [2020-07-21 13:53:35,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-21 13:53:35,656 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:53:35,657 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:53:35,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:35,872 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:53:35,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:53:35,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1012541875, now seen corresponding path program 1 times [2020-07-21 13:53:35,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:53:35,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482501918] [2020-07-21 13:53:35,875 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:35,970 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:53:35,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:53:35,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:53:35,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:53:36,050 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:53:36,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:53:36,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482501918] [2020-07-21 13:53:36,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:53:36,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:53:36,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75090752] [2020-07-21 13:53:36,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:53:36,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:53:36,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:53:36,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:53:36,054 INFO L87 Difference]: Start difference. First operand 580 states and 802 transitions. Second operand 5 states. [2020-07-21 13:53:37,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:37,141 INFO L93 Difference]: Finished difference Result 1470 states and 2115 transitions. [2020-07-21 13:53:37,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:53:37,141 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2020-07-21 13:53:37,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:37,149 INFO L225 Difference]: With dead ends: 1470 [2020-07-21 13:53:37,149 INFO L226 Difference]: Without dead ends: 896 [2020-07-21 13:53:37,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:53:37,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2020-07-21 13:53:37,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 886. [2020-07-21 13:53:37,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2020-07-21 13:53:37,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1170 transitions. [2020-07-21 13:53:37,204 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1170 transitions. Word has length 116 [2020-07-21 13:53:37,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:37,204 INFO L479 AbstractCegarLoop]: Abstraction has 886 states and 1170 transitions. [2020-07-21 13:53:37,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:53:37,205 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1170 transitions. [2020-07-21 13:53:37,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-21 13:53:37,210 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:53:37,210 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:53:37,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:37,426 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:53:37,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:53:37,427 INFO L82 PathProgramCache]: Analyzing trace with hash -892446079, now seen corresponding path program 1 times [2020-07-21 13:53:37,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:53:37,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504117512] [2020-07-21 13:53:37,429 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:37,515 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:53:37,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:53:37,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:53:37,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:53:37,600 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:53:37,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:53:37,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1504117512] [2020-07-21 13:53:37,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:53:37,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:53:37,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591958234] [2020-07-21 13:53:37,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:53:37,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:53:37,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:53:37,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:53:37,603 INFO L87 Difference]: Start difference. First operand 886 states and 1170 transitions. Second operand 5 states. [2020-07-21 13:53:38,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:38,766 INFO L93 Difference]: Finished difference Result 2233 states and 3103 transitions. [2020-07-21 13:53:38,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:53:38,767 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2020-07-21 13:53:38,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:38,787 INFO L225 Difference]: With dead ends: 2233 [2020-07-21 13:53:38,788 INFO L226 Difference]: Without dead ends: 1353 [2020-07-21 13:53:38,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:53:38,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2020-07-21 13:53:38,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1327. [2020-07-21 13:53:38,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1327 states. [2020-07-21 13:53:38,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1744 transitions. [2020-07-21 13:53:38,882 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1744 transitions. Word has length 126 [2020-07-21 13:53:38,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:38,884 INFO L479 AbstractCegarLoop]: Abstraction has 1327 states and 1744 transitions. [2020-07-21 13:53:38,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:53:38,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1744 transitions. [2020-07-21 13:53:38,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-07-21 13:53:38,902 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:53:38,902 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 13:53:39,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:39,104 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:53:39,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:53:39,104 INFO L82 PathProgramCache]: Analyzing trace with hash 839505174, now seen corresponding path program 1 times [2020-07-21 13:53:39,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:53:39,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [89700118] [2020-07-21 13:53:39,106 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:39,264 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:53:39,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:53:39,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:53:39,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:53:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:53:39,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:53:39,564 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:53:39,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [89700118] [2020-07-21 13:53:39,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:53:39,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:53:39,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106956608] [2020-07-21 13:53:39,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:53:39,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:53:39,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:53:39,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:53:39,567 INFO L87 Difference]: Start difference. First operand 1327 states and 1744 transitions. Second operand 7 states. [2020-07-21 13:53:40,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:40,977 INFO L93 Difference]: Finished difference Result 3246 states and 4284 transitions. [2020-07-21 13:53:40,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 13:53:40,978 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 187 [2020-07-21 13:53:40,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:40,993 INFO L225 Difference]: With dead ends: 3246 [2020-07-21 13:53:40,993 INFO L226 Difference]: Without dead ends: 1925 [2020-07-21 13:53:41,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 369 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 13:53:41,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1925 states. [2020-07-21 13:53:41,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1925 to 1921. [2020-07-21 13:53:41,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1921 states. [2020-07-21 13:53:41,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 2361 transitions. [2020-07-21 13:53:41,074 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 2361 transitions. Word has length 187 [2020-07-21 13:53:41,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:41,075 INFO L479 AbstractCegarLoop]: Abstraction has 1921 states and 2361 transitions. [2020-07-21 13:53:41,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:53:41,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 2361 transitions. [2020-07-21 13:53:41,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-07-21 13:53:41,085 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:53:41,086 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 13:53:41,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:41,293 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:53:41,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:53:41,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1794002142, now seen corresponding path program 1 times [2020-07-21 13:53:41,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:53:41,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [10674692] [2020-07-21 13:53:41,294 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:41,395 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:53:41,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:53:41,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:53:41,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:53:41,442 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 13:53:41,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:53:41,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [10674692] [2020-07-21 13:53:41,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:53:41,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:53:41,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729381418] [2020-07-21 13:53:41,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:53:41,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:53:41,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:53:41,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:53:41,448 INFO L87 Difference]: Start difference. First operand 1921 states and 2361 transitions. Second operand 3 states. [2020-07-21 13:53:42,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:42,208 INFO L93 Difference]: Finished difference Result 3230 states and 3986 transitions. [2020-07-21 13:53:42,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:53:42,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-07-21 13:53:42,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:42,228 INFO L225 Difference]: With dead ends: 3230 [2020-07-21 13:53:42,228 INFO L226 Difference]: Without dead ends: 3228 [2020-07-21 13:53:42,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:53:42,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3228 states. [2020-07-21 13:53:42,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3228 to 2219. [2020-07-21 13:53:42,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2219 states. [2020-07-21 13:53:42,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 2724 transitions. [2020-07-21 13:53:42,317 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 2724 transitions. Word has length 191 [2020-07-21 13:53:42,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:42,317 INFO L479 AbstractCegarLoop]: Abstraction has 2219 states and 2724 transitions. [2020-07-21 13:53:42,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:53:42,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 2724 transitions. [2020-07-21 13:53:42,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-21 13:53:42,322 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:53:42,322 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 13:53:42,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:42,536 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:53:42,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:53:42,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1119643437, now seen corresponding path program 1 times [2020-07-21 13:53:42,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:53:42,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [260584365] [2020-07-21 13:53:42,538 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:42,704 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:53:42,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:53:42,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:53:42,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:53:42,756 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-07-21 13:53:42,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:53:42,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [260584365] [2020-07-21 13:53:42,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:53:42,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:53:42,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115844707] [2020-07-21 13:53:42,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:53:42,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:53:42,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:53:42,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:53:42,759 INFO L87 Difference]: Start difference. First operand 2219 states and 2724 transitions. Second operand 3 states. [2020-07-21 13:53:43,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:43,439 INFO L93 Difference]: Finished difference Result 4432 states and 5449 transitions. [2020-07-21 13:53:43,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:53:43,440 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-07-21 13:53:43,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:43,453 INFO L225 Difference]: With dead ends: 4432 [2020-07-21 13:53:43,454 INFO L226 Difference]: Without dead ends: 2219 [2020-07-21 13:53:43,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:53:43,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2020-07-21 13:53:43,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2074. [2020-07-21 13:53:43,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2074 states. [2020-07-21 13:53:43,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 2492 transitions. [2020-07-21 13:53:43,528 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 2492 transitions. Word has length 204 [2020-07-21 13:53:43,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:43,529 INFO L479 AbstractCegarLoop]: Abstraction has 2074 states and 2492 transitions. [2020-07-21 13:53:43,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:53:43,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 2492 transitions. [2020-07-21 13:53:43,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-07-21 13:53:43,539 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:53:43,539 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:53:43,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:43,745 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:53:43,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:53:43,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1601268491, now seen corresponding path program 1 times [2020-07-21 13:53:43,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:53:43,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068226248] [2020-07-21 13:53:43,747 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:43,930 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:53:43,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:53:43,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:53:43,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:53:44,039 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 276 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-21 13:53:44,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:53:44,255 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 158 proven. 72 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-07-21 13:53:44,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068226248] [2020-07-21 13:53:44,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:53:44,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:53:44,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937078206] [2020-07-21 13:53:44,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:53:44,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:53:44,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:53:44,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:53:44,258 INFO L87 Difference]: Start difference. First operand 2074 states and 2492 transitions. Second operand 6 states. [2020-07-21 13:53:45,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:45,430 INFO L93 Difference]: Finished difference Result 5346 states and 6558 transitions. [2020-07-21 13:53:45,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:53:45,431 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 312 [2020-07-21 13:53:45,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:45,444 INFO L225 Difference]: With dead ends: 5346 [2020-07-21 13:53:45,444 INFO L226 Difference]: Without dead ends: 2110 [2020-07-21 13:53:45,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 620 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:53:45,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2020-07-21 13:53:45,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 1192. [2020-07-21 13:53:45,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2020-07-21 13:53:45,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1349 transitions. [2020-07-21 13:53:45,503 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1349 transitions. Word has length 312 [2020-07-21 13:53:45,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:45,504 INFO L479 AbstractCegarLoop]: Abstraction has 1192 states and 1349 transitions. [2020-07-21 13:53:45,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:53:45,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1349 transitions. [2020-07-21 13:53:45,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2020-07-21 13:53:45,512 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:53:45,513 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 13:53:45,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:45,728 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:53:45,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:53:45,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1000768387, now seen corresponding path program 1 times [2020-07-21 13:53:45,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:53:45,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23263559] [2020-07-21 13:53:45,730 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:45,918 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:53:45,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:53:45,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:53:45,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:53:46,087 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 272 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-07-21 13:53:46,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:53:46,254 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 272 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-07-21 13:53:46,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [23263559] [2020-07-21 13:53:46,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:53:46,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:53:46,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282812234] [2020-07-21 13:53:46,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:53:46,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:53:46,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:53:46,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:53:46,256 INFO L87 Difference]: Start difference. First operand 1192 states and 1349 transitions. Second operand 7 states. [2020-07-21 13:53:47,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:47,876 INFO L93 Difference]: Finished difference Result 3852 states and 4550 transitions. [2020-07-21 13:53:47,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 13:53:47,883 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 348 [2020-07-21 13:53:47,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:47,896 INFO L225 Difference]: With dead ends: 3852 [2020-07-21 13:53:47,896 INFO L226 Difference]: Without dead ends: 2666 [2020-07-21 13:53:47,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 703 GetRequests, 693 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-21 13:53:47,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2666 states. [2020-07-21 13:53:47,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2666 to 2646. [2020-07-21 13:53:47,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2646 states. [2020-07-21 13:53:47,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 3035 transitions. [2020-07-21 13:53:47,973 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 3035 transitions. Word has length 348 [2020-07-21 13:53:47,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:47,974 INFO L479 AbstractCegarLoop]: Abstraction has 2646 states and 3035 transitions. [2020-07-21 13:53:47,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:53:47,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 3035 transitions. [2020-07-21 13:53:47,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2020-07-21 13:53:47,990 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:53:47,990 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:53:48,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:48,204 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:53:48,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:53:48,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1469145691, now seen corresponding path program 1 times [2020-07-21 13:53:48,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:53:48,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675999537] [2020-07-21 13:53:48,207 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:48,383 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:53:48,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:53:48,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:53:48,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:53:48,534 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2020-07-21 13:53:48,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:53:48,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [675999537] [2020-07-21 13:53:48,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:53:48,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:53:48,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201880690] [2020-07-21 13:53:48,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:53:48,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:53:48,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:53:48,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:53:48,541 INFO L87 Difference]: Start difference. First operand 2646 states and 3035 transitions. Second operand 3 states. [2020-07-21 13:53:49,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:49,076 INFO L93 Difference]: Finished difference Result 2646 states and 3035 transitions. [2020-07-21 13:53:49,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:53:49,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 400 [2020-07-21 13:53:49,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:49,078 INFO L225 Difference]: With dead ends: 2646 [2020-07-21 13:53:49,078 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:53:49,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:53:49,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:53:49,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:53:49,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:53:49,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:53:49,085 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 400 [2020-07-21 13:53:49,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:49,085 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:53:49,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:53:49,085 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:53:49,085 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:53:49,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:49,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:53:49,832 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 99 [2020-07-21 13:53:50,012 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 99 [2020-07-21 13:53:50,724 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 48 [2020-07-21 13:53:51,192 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 32 [2020-07-21 13:53:51,640 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 32 [2020-07-21 13:53:51,645 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:53:51,645 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a1~0)| ~a1~0) (<= ~a19~0 |old(~a19~0)|)) [2020-07-21 13:53:51,646 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:53:51,646 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 13:53:51,646 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,646 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,646 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,646 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,647 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,647 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,647 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 13:53:51,647 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 13:53:51,647 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 13:53:51,647 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 13:53:51,647 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 13:53:51,647 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 13:53:51,647 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 13:53:51,647 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 13:53:51,648 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 13:53:51,648 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 13:53:51,648 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 13:53:51,648 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,648 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,648 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,648 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,648 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,648 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 13:53:51,648 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 13:53:51,649 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 13:53:51,649 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 13:53:51,649 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 13:53:51,649 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 13:53:51,649 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 13:53:51,649 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 13:53:51,649 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 13:53:51,649 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 13:53:51,649 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 13:53:51,649 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 13:53:51,649 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 13:53:51,649 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2020-07-21 13:53:51,650 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 13:53:51,650 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,650 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,650 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,650 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,650 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,650 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 13:53:51,650 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 13:53:51,650 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 13:53:51,650 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 13:53:51,651 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 13:53:51,651 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 13:53:51,651 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 13:53:51,651 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 13:53:51,651 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 13:53:51,651 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 13:53:51,651 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,651 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,651 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,652 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,652 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,652 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 13:53:51,652 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 13:53:51,652 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 13:53:51,652 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 13:53:51,652 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 13:53:51,652 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 13:53:51,653 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 13:53:51,653 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 13:53:51,653 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 13:53:51,653 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 13:53:51,653 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 13:53:51,653 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 13:53:51,653 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 13:53:51,653 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,653 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,654 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,654 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,654 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,654 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 13:53:51,654 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 13:53:51,654 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 13:53:51,654 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 13:53:51,654 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 13:53:51,655 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 13:53:51,655 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 13:53:51,655 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 13:53:51,655 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 13:53:51,655 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,655 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,655 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,655 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,655 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,656 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,656 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,656 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 13:53:51,656 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 13:53:51,656 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 13:53:51,656 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 13:53:51,656 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 13:53:51,656 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 13:53:51,656 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 13:53:51,657 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 13:53:51,657 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 13:53:51,657 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 13:53:51,657 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 13:53:51,657 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 13:53:51,657 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 13:53:51,657 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,657 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,657 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,658 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,658 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 13:53:51,658 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,658 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,658 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 13:53:51,658 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 13:53:51,658 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 13:53:51,658 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 13:53:51,658 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 13:53:51,659 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 13:53:51,659 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 13:53:51,659 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 13:53:51,659 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 13:53:51,659 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 13:53:51,659 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 13:53:51,659 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 13:53:51,659 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 13:53:51,660 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,660 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,660 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,660 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,660 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,660 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,660 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 13:53:51,660 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 13:53:51,661 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 13:53:51,661 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 13:53:51,661 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 13:53:51,661 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 13:53:51,661 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 13:53:51,661 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 13:53:51,661 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 13:53:51,662 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 13:53:51,662 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 13:53:51,662 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse5 (<= ~a10~0 |old(~a10~0)|)) (.cse2 (<= |old(~a1~0)| ~a1~0)) (.cse6 (<= ~a19~0 |old(~a19~0)|))) (let ((.cse0 (and .cse5 .cse2 .cse6)) (.cse3 (not (<= |old(~a19~0)| 9))) (.cse1 (not (<= 1 |old(~a10~0)|))) (.cse4 (not (<= |old(~a10~0)| 2)))) (and (or (not (<= |old(~a19~0)| 6)) .cse0) (or .cse1 .cse2 .cse3 .cse4) (or (not (<= 23 |old(~a1~0)|)) .cse3 .cse0) (or (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) .cse5 .cse2 .cse6) .cse4) (or (and .cse5 .cse2 .cse6 (<= 2 ~a10~0)) .cse3 (not (<= 2 |old(~a10~0)|))) (or .cse1 (and .cse5 .cse6) .cse3 .cse4) (or .cse1 (<= 1 ~a10~0) .cse4)))) [2020-07-21 13:53:51,662 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 13:53:51,662 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 13:53:51,662 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 13:53:51,662 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,662 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,662 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,662 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,663 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,663 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,663 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 13:53:51,663 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 13:53:51,663 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 13:53:51,663 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 13:53:51,663 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 13:53:51,663 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 13:53:51,663 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 13:53:51,663 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 13:53:51,663 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 13:53:51,664 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 13:53:51,664 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 13:53:51,664 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 13:53:51,664 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 13:53:51,664 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,664 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,664 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,664 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,665 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,665 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,665 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 13:53:51,665 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 13:53:51,665 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 13:53:51,665 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 13:53:51,665 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 13:53:51,665 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 13:53:51,666 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 13:53:51,666 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 13:53:51,666 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 13:53:51,666 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 13:53:51,666 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 13:53:51,666 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 13:53:51,666 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,666 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,667 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,667 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,667 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,667 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:53:51,667 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 13:53:51,667 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 13:53:51,667 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 13:53:51,667 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 13:53:51,668 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 13:53:51,668 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 13:53:51,668 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 13:53:51,668 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 13:53:51,668 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 13:53:51,668 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 13:53:51,668 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 13:53:51,668 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 13:53:51,668 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:53:51,669 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0) (<= 23 ~a1~0)) [2020-07-21 13:53:51,669 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:53:51,669 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:53:51,669 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= |old(~a1~0)| ~a1~0) (<= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9))) [2020-07-21 13:53:51,669 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 13:53:51,669 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (<= ~a10~0 2))) (or (not (<= 23 |old(~a1~0)|)) (and .cse0 (<= 23 ~a1~0)) (and (<= 1 ~a10~0) .cse1) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and .cse0 (<= 2 ~a10~0)) (and (<= 9 ~a19~0) .cse1))) [2020-07-21 13:53:51,669 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 13:53:51,670 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 13:53:51,670 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (<= ~a10~0 2))) (or (not (<= 23 |old(~a1~0)|)) (and .cse0 (<= 23 ~a1~0)) (and (<= 1 ~a10~0) .cse1) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and .cse0 (<= 2 ~a10~0)) (and (<= 9 ~a19~0) .cse1))) [2020-07-21 13:53:51,670 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 13:53:51,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:53:51 BoogieIcfgContainer [2020-07-21 13:53:51,695 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:53:51,698 INFO L168 Benchmark]: Toolchain (without parser) took 21372.87 ms. Allocated memory was 144.2 MB in the beginning and 589.8 MB in the end (delta: 445.6 MB). Free memory was 100.4 MB in the beginning and 414.2 MB in the end (delta: -313.7 MB). Peak memory consumption was 401.9 MB. Max. memory is 7.1 GB. [2020-07-21 13:53:51,701 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 144.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 13:53:51,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.12 ms. Allocated memory was 144.2 MB in the beginning and 203.9 MB in the end (delta: 59.8 MB). Free memory was 100.2 MB in the beginning and 170.6 MB in the end (delta: -70.4 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2020-07-21 13:53:51,709 INFO L168 Benchmark]: Boogie Preprocessor took 174.54 ms. Allocated memory is still 203.9 MB. Free memory was 170.6 MB in the beginning and 164.3 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. [2020-07-21 13:53:51,710 INFO L168 Benchmark]: RCFGBuilder took 1511.01 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 164.3 MB in the beginning and 178.9 MB in the end (delta: -14.6 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-07-21 13:53:51,711 INFO L168 Benchmark]: TraceAbstraction took 18885.05 ms. Allocated memory was 234.9 MB in the beginning and 589.8 MB in the end (delta: 354.9 MB). Free memory was 178.9 MB in the beginning and 414.2 MB in the end (delta: -235.2 MB). Peak memory consumption was 389.7 MB. Max. memory is 7.1 GB. [2020-07-21 13:53:51,721 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 144.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 796.12 ms. Allocated memory was 144.2 MB in the beginning and 203.9 MB in the end (delta: 59.8 MB). Free memory was 100.2 MB in the beginning and 170.6 MB in the end (delta: -70.4 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 174.54 ms. Allocated memory is still 203.9 MB. Free memory was 170.6 MB in the beginning and 164.3 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1511.01 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 164.3 MB in the beginning and 178.9 MB in the end (delta: -14.6 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18885.05 ms. Allocated memory was 234.9 MB in the beginning and 589.8 MB in the end (delta: 354.9 MB). Free memory was 178.9 MB in the beginning and 414.2 MB in the end (delta: -235.2 MB). Peak memory consumption was 389.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((((((!(23 <= \old(a1)) || (a19 <= 9 && 23 <= a1)) || (1 <= a10 && a10 <= 2)) || a19 <= 6) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || !(\old(a19) <= 9)) || (a19 <= 9 && 2 <= a10)) || (9 <= a19 && a10 <= 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.4s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 790 SDtfs, 2848 SDslu, 264 SDs, 0 SdLazy, 5918 SolverSat, 1179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2886 GetRequests, 2841 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2646occurred in iteration=9, 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, 10 MinimizatonAttempts, 2132 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 91 PreInvPairs, 143 NumberOfFragments, 277 HoareAnnotationTreeSize, 91 FomulaSimplifications, 9724 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6102 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 2024 NumberOfCodeBlocks, 2024 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2858 ConstructedInterpolants, 0 QuantifiedInterpolants, 1519756 SizeOfPredicates, 15 NumberOfNonLiveVariables, 3687 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 2232/2314 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...