/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 DAGSIZE --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/Problem14_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:14:17,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:14:17,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:14:17,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:14:17,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:14:17,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:14:17,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:14:17,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:14:17,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:14:17,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:14:17,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:14:17,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:14:17,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:14:17,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:14:17,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:14:17,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:14:17,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:14:17,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:14:17,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:14:17,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:14:17,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:14:17,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:14:17,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:14:17,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:14:17,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:14:17,921 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 20:14:17,944 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:14:17,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:14:17,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:14:17,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:14:17,948 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:14:17,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:14:17,948 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:14:17,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:14:17,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:14:17,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:14:17,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:14:17,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:14:17,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:14:17,951 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:14:17,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:14:17,951 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:14:17,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:14:17,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:14:17,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:14:17,952 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:14:17,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:14:17,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:14:17,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:14:17,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:14:17,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:14:17,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:14:17,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:14:17,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:14:17,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:14:17,954 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 -> DAGSIZE 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 20:14:18,291 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:14:18,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:14:18,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:14:18,311 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:14:18,311 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:14:18,312 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label24.c [2020-07-21 20:14:18,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c746ba2fe/04a674fb60144662b18c1ae523a10143/FLAG3528e3c10 [2020-07-21 20:14:19,015 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:14:19,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label24.c [2020-07-21 20:14:19,030 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c746ba2fe/04a674fb60144662b18c1ae523a10143/FLAG3528e3c10 [2020-07-21 20:14:19,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c746ba2fe/04a674fb60144662b18c1ae523a10143 [2020-07-21 20:14:19,207 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:14:19,211 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:14:19,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:14:19,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:14:19,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:14:19,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:14:19" (1/1) ... [2020-07-21 20:14:19,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fd1c41b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:19, skipping insertion in model container [2020-07-21 20:14:19,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:14:19" (1/1) ... [2020-07-21 20:14:19,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:14:19,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:14:19,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:14:19,833 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:14:20,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:14:20,167 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:14:20,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:20 WrapperNode [2020-07-21 20:14:20,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:14:20,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:14:20,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:14:20,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:14:20,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:20" (1/1) ... [2020-07-21 20:14:20,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:20" (1/1) ... [2020-07-21 20:14:20,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:20" (1/1) ... [2020-07-21 20:14:20,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:20" (1/1) ... [2020-07-21 20:14:20,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:20" (1/1) ... [2020-07-21 20:14:20,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:20" (1/1) ... [2020-07-21 20:14:20,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:20" (1/1) ... [2020-07-21 20:14:20,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:14:20,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:14:20,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:14:20,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:14:20,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:20" (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 20:14:20,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:14:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:14:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:14:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:14:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:14:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:14:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:14:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:14:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:14:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:14:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:14:21,852 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:14:21,853 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:14:21,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:14:21 BoogieIcfgContainer [2020-07-21 20:14:21,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:14:21,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:14:21,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:14:21,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:14:21,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:14:19" (1/3) ... [2020-07-21 20:14:21,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4980a2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:14:21, skipping insertion in model container [2020-07-21 20:14:21,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:20" (2/3) ... [2020-07-21 20:14:21,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4980a2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:14:21, skipping insertion in model container [2020-07-21 20:14:21,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:14:21" (3/3) ... [2020-07-21 20:14:21,871 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label24.c [2020-07-21 20:14:21,885 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:14:21,897 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:14:21,916 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:14:21,950 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:14:21,950 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:14:21,950 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:14:21,951 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:14:21,951 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:14:21,951 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:14:21,951 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:14:21,951 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:14:21,978 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-07-21 20:14:21,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 20:14:21,988 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:14:21,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:14:21,990 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:14:21,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:14:21,998 INFO L82 PathProgramCache]: Analyzing trace with hash 2116109586, now seen corresponding path program 1 times [2020-07-21 20:14:22,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:14:22,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1468247073] [2020-07-21 20:14:22,009 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 20:14:22,134 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:14:22,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:14:22,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:14:22,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:14:22,213 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 20:14:22,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:14:22,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1468247073] [2020-07-21 20:14:22,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:14:22,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:14:22,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448627971] [2020-07-21 20:14:22,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:14:22,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:14:22,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:14:22,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:14:22,241 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2020-07-21 20:14:23,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:14:23,550 INFO L93 Difference]: Finished difference Result 688 states and 1223 transitions. [2020-07-21 20:14:23,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:14:23,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 20:14:23,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:14:23,585 INFO L225 Difference]: With dead ends: 688 [2020-07-21 20:14:23,586 INFO L226 Difference]: Without dead ends: 372 [2020-07-21 20:14:23,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 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 20:14:23,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-07-21 20:14:23,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2020-07-21 20:14:23,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-07-21 20:14:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 602 transitions. [2020-07-21 20:14:23,738 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 602 transitions. Word has length 47 [2020-07-21 20:14:23,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:14:23,739 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 602 transitions. [2020-07-21 20:14:23,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:14:23,740 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 602 transitions. [2020-07-21 20:14:23,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-21 20:14:23,749 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:14:23,750 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:14:23,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:14:23,964 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:14:23,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:14:23,965 INFO L82 PathProgramCache]: Analyzing trace with hash 13726601, now seen corresponding path program 1 times [2020-07-21 20:14:23,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:14:23,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654671197] [2020-07-21 20:14:23,966 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 20:14:24,071 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:14:24,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:14:24,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:14:24,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:14:24,155 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:14:24,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:14:24,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654671197] [2020-07-21 20:14:24,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:14:24,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:14:24,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945294436] [2020-07-21 20:14:24,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:14:24,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:14:24,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:14:24,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:14:24,160 INFO L87 Difference]: Start difference. First operand 372 states and 602 transitions. Second operand 3 states. [2020-07-21 20:14:25,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:14:25,151 INFO L93 Difference]: Finished difference Result 1102 states and 1805 transitions. [2020-07-21 20:14:25,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:14:25,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-07-21 20:14:25,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:14:25,160 INFO L225 Difference]: With dead ends: 1102 [2020-07-21 20:14:25,160 INFO L226 Difference]: Without dead ends: 736 [2020-07-21 20:14:25,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 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 20:14:25,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2020-07-21 20:14:25,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 554. [2020-07-21 20:14:25,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-07-21 20:14:25,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 794 transitions. [2020-07-21 20:14:25,199 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 794 transitions. Word has length 116 [2020-07-21 20:14:25,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:14:25,200 INFO L479 AbstractCegarLoop]: Abstraction has 554 states and 794 transitions. [2020-07-21 20:14:25,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:14:25,200 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 794 transitions. [2020-07-21 20:14:25,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-07-21 20:14:25,202 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:14:25,203 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:14:25,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:14:25,418 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:14:25,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:14:25,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1939521290, now seen corresponding path program 1 times [2020-07-21 20:14:25,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:14:25,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118101338] [2020-07-21 20:14:25,420 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 20:14:25,505 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:14:25,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:14:25,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:14:25,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:14:25,564 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:14:25,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:14:25,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118101338] [2020-07-21 20:14:25,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:14:25,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:14:25,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510553556] [2020-07-21 20:14:25,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:14:25,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:14:25,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:14:25,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:14:25,578 INFO L87 Difference]: Start difference. First operand 554 states and 794 transitions. Second operand 5 states. [2020-07-21 20:14:27,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:14:27,055 INFO L93 Difference]: Finished difference Result 1494 states and 2252 transitions. [2020-07-21 20:14:27,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:14:27,056 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-07-21 20:14:27,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:14:27,077 INFO L225 Difference]: With dead ends: 1494 [2020-07-21 20:14:27,077 INFO L226 Difference]: Without dead ends: 946 [2020-07-21 20:14:27,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:14:27,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2020-07-21 20:14:27,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 934. [2020-07-21 20:14:27,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 934 states. [2020-07-21 20:14:27,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1328 transitions. [2020-07-21 20:14:27,154 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1328 transitions. Word has length 121 [2020-07-21 20:14:27,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:14:27,154 INFO L479 AbstractCegarLoop]: Abstraction has 934 states and 1328 transitions. [2020-07-21 20:14:27,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:14:27,155 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1328 transitions. [2020-07-21 20:14:27,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 20:14:27,168 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:14:27,169 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:14:27,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:14:27,376 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:14:27,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:14:27,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1028566563, now seen corresponding path program 1 times [2020-07-21 20:14:27,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:14:27,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672929649] [2020-07-21 20:14:27,377 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 20:14:27,479 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:14:27,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:14:27,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:14:27,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:14:27,512 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:14:27,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:14:27,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672929649] [2020-07-21 20:14:27,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:14:27,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:14:27,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513418299] [2020-07-21 20:14:27,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:14:27,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:14:27,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:14:27,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:14:27,515 INFO L87 Difference]: Start difference. First operand 934 states and 1328 transitions. Second operand 3 states. [2020-07-21 20:14:28,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:14:28,371 INFO L93 Difference]: Finished difference Result 1304 states and 1844 transitions. [2020-07-21 20:14:28,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:14:28,374 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-21 20:14:28,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:14:28,386 INFO L225 Difference]: With dead ends: 1304 [2020-07-21 20:14:28,386 INFO L226 Difference]: Without dead ends: 1302 [2020-07-21 20:14:28,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:14:28,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-07-21 20:14:28,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 932. [2020-07-21 20:14:28,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2020-07-21 20:14:28,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1269 transitions. [2020-07-21 20:14:28,442 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1269 transitions. Word has length 142 [2020-07-21 20:14:28,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:14:28,444 INFO L479 AbstractCegarLoop]: Abstraction has 932 states and 1269 transitions. [2020-07-21 20:14:28,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:14:28,444 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1269 transitions. [2020-07-21 20:14:28,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-07-21 20:14:28,448 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:14:28,449 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:14:28,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:14:28,664 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:14:28,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:14:28,664 INFO L82 PathProgramCache]: Analyzing trace with hash 511372486, now seen corresponding path program 1 times [2020-07-21 20:14:28,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:14:28,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046449526] [2020-07-21 20:14:28,665 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 20:14:28,781 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:14:28,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:14:28,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 20:14:28,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:14:28,862 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 20:14:28,863 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:14:28,864 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:14:28,885 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:14:29,015 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 20:14:29,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:14:29,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1046449526] [2020-07-21 20:14:29,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:14:29,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:14:29,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824327694] [2020-07-21 20:14:29,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:14:29,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:14:29,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:14:29,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:14:29,020 INFO L87 Difference]: Start difference. First operand 932 states and 1269 transitions. Second operand 5 states. [2020-07-21 20:14:30,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:14:30,467 INFO L93 Difference]: Finished difference Result 2252 states and 3022 transitions. [2020-07-21 20:14:30,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:14:30,469 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 233 [2020-07-21 20:14:30,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:14:30,475 INFO L225 Difference]: With dead ends: 2252 [2020-07-21 20:14:30,476 INFO L226 Difference]: Without dead ends: 1142 [2020-07-21 20:14:30,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:14:30,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2020-07-21 20:14:30,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1120. [2020-07-21 20:14:30,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1120 states. [2020-07-21 20:14:30,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1472 transitions. [2020-07-21 20:14:30,511 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1472 transitions. Word has length 233 [2020-07-21 20:14:30,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:14:30,512 INFO L479 AbstractCegarLoop]: Abstraction has 1120 states and 1472 transitions. [2020-07-21 20:14:30,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:14:30,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1472 transitions. [2020-07-21 20:14:30,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-07-21 20:14:30,518 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:14:30,519 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:14:30,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:14:30,734 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:14:30,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:14:30,735 INFO L82 PathProgramCache]: Analyzing trace with hash -266552290, now seen corresponding path program 1 times [2020-07-21 20:14:30,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:14:30,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1744409669] [2020-07-21 20:14:30,736 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 20:14:30,910 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:14:30,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:14:30,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 20:14:30,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:14:30,978 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 20:14:30,979 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:14:30,981 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:14:31,002 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:14:31,147 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 309 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 20:14:31,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:14:31,320 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2020-07-21 20:14:31,359 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 20:14:31,360 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:14:31,366 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 20:14:31,367 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:14:31,369 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:14:31,370 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:14:31,373 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:14:31,374 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:14:31,411 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:14:31,412 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:14:31,498 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:14:31,499 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:14:31,535 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:14:31,923 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 125 proven. 223 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 20:14:31,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1744409669] [2020-07-21 20:14:31,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:14:31,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2020-07-21 20:14:31,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435673290] [2020-07-21 20:14:31,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-21 20:14:31,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:14:31,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-21 20:14:31,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-07-21 20:14:31,927 INFO L87 Difference]: Start difference. First operand 1120 states and 1472 transitions. Second operand 13 states. [2020-07-21 20:14:35,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:14:35,705 INFO L93 Difference]: Finished difference Result 3560 states and 4753 transitions. [2020-07-21 20:14:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 20:14:35,706 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 317 [2020-07-21 20:14:35,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:14:35,717 INFO L225 Difference]: With dead ends: 3560 [2020-07-21 20:14:35,718 INFO L226 Difference]: Without dead ends: 2240 [2020-07-21 20:14:35,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 632 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2020-07-21 20:14:35,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2020-07-21 20:14:35,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 1866. [2020-07-21 20:14:35,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1866 states. [2020-07-21 20:14:35,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2084 transitions. [2020-07-21 20:14:35,777 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2084 transitions. Word has length 317 [2020-07-21 20:14:35,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:14:35,777 INFO L479 AbstractCegarLoop]: Abstraction has 1866 states and 2084 transitions. [2020-07-21 20:14:35,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-21 20:14:35,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2084 transitions. [2020-07-21 20:14:35,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2020-07-21 20:14:35,788 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:14:35,788 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:14:36,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:14:36,002 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:14:36,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:14:36,002 INFO L82 PathProgramCache]: Analyzing trace with hash 125799061, now seen corresponding path program 1 times [2020-07-21 20:14:36,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:14:36,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881258030] [2020-07-21 20:14:36,003 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 20:14:36,225 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:14:36,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:14:36,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:14:36,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:14:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 485 proven. 2 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-07-21 20:14:36,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:14:36,562 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 242 proven. 148 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-07-21 20:14:36,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881258030] [2020-07-21 20:14:36,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:14:36,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:14:36,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766658088] [2020-07-21 20:14:36,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:14:36,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:14:36,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:14:36,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:14:36,566 INFO L87 Difference]: Start difference. First operand 1866 states and 2084 transitions. Second operand 7 states. [2020-07-21 20:14:38,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:14:38,185 INFO L93 Difference]: Finished difference Result 5594 states and 6452 transitions. [2020-07-21 20:14:38,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 20:14:38,185 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 418 [2020-07-21 20:14:38,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:14:38,204 INFO L225 Difference]: With dead ends: 5594 [2020-07-21 20:14:38,204 INFO L226 Difference]: Without dead ends: 3916 [2020-07-21 20:14:38,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 834 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 20:14:38,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3916 states. [2020-07-21 20:14:38,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3364. [2020-07-21 20:14:38,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3364 states. [2020-07-21 20:14:38,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 3814 transitions. [2020-07-21 20:14:38,308 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 3814 transitions. Word has length 418 [2020-07-21 20:14:38,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:14:38,309 INFO L479 AbstractCegarLoop]: Abstraction has 3364 states and 3814 transitions. [2020-07-21 20:14:38,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:14:38,309 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 3814 transitions. [2020-07-21 20:14:38,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2020-07-21 20:14:38,318 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:14:38,318 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-07-21 20:14:38,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:14:38,532 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:14:38,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:14:38,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1929187522, now seen corresponding path program 1 times [2020-07-21 20:14:38,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:14:38,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863785370] [2020-07-21 20:14:38,534 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 20:14:38,810 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:14:38,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:14:38,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 20:14:38,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:14:38,849 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2020-07-21 20:14:38,850 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 20:14:38,851 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:14:38,852 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-07-21 20:14:38,854 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 20:14:38,855 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:14:38,857 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:14:39,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 462 proven. 43 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2020-07-21 20:14:39,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:14:39,511 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 20:14:39,511 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:14:39,513 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:14:39,514 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:14:39,515 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:14:39,515 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 20:14:39,516 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:14:39,520 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 20:14:39,522 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:14:39,525 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 5 conjuncts [2020-07-21 20:14:39,526 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 20:14:39,549 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:14:39,550 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 20:14:39,552 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:14:39,554 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:14:39,558 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:14:39,561 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:14:39,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 943 trivial. 0 not checked. [2020-07-21 20:14:39,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863785370] [2020-07-21 20:14:39,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 20:14:39,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-07-21 20:14:39,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982731466] [2020-07-21 20:14:39,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:14:39,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:14:39,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:14:39,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:14:39,850 INFO L87 Difference]: Start difference. First operand 3364 states and 3814 transitions. Second operand 3 states. [2020-07-21 20:14:40,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:14:40,659 INFO L93 Difference]: Finished difference Result 7632 states and 8771 transitions. [2020-07-21 20:14:40,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:14:40,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 585 [2020-07-21 20:14:40,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:14:40,662 INFO L225 Difference]: With dead ends: 7632 [2020-07-21 20:14:40,662 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:14:40,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1169 GetRequests, 1164 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:14:40,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:14:40,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:14:40,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:14:40,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:14:40,684 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 585 [2020-07-21 20:14:40,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:14:40,684 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:14:40,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:14:40,688 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:14:40,688 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:14:40,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:14:40,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:14:41,972 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 49 [2020-07-21 20:14:42,169 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 41 [2020-07-21 20:14:42,331 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 41 [2020-07-21 20:14:42,337 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:14:42,337 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a12~0 |old(~a12~0)|) (<= ~a24~0 |old(~a24~0)|) (<= ~a21~0 |old(~a21~0)|) (<= ~a15~0 |old(~a15~0)|) (<= |old(~a21~0)| ~a21~0)) [2020-07-21 20:14:42,337 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:14:42,337 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-07-21 20:14:42,338 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-07-21 20:14:42,338 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,338 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,338 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,339 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-07-21 20:14:42,339 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 20:14:42,339 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 20:14:42,339 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 20:14:42,339 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-07-21 20:14:42,339 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-07-21 20:14:42,339 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-07-21 20:14:42,339 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-07-21 20:14:42,340 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,340 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,340 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,340 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-07-21 20:14:42,340 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-07-21 20:14:42,340 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 20:14:42,340 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 20:14:42,340 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 20:14:42,340 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-07-21 20:14:42,340 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-07-21 20:14:42,340 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-07-21 20:14:42,340 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,341 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,341 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,341 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-07-21 20:14:42,341 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 20:14:42,341 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 20:14:42,341 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 20:14:42,341 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-07-21 20:14:42,341 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-07-21 20:14:42,342 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-07-21 20:14:42,342 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-07-21 20:14:42,342 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-07-21 20:14:42,342 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,342 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,342 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,342 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-07-21 20:14:42,343 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 20:14:42,343 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 20:14:42,343 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 20:14:42,343 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-07-21 20:14:42,343 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-07-21 20:14:42,343 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-07-21 20:14:42,343 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,343 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,344 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,344 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-07-21 20:14:42,344 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 20:14:42,344 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 20:14:42,344 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 20:14:42,344 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-07-21 20:14:42,344 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-07-21 20:14:42,344 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-07-21 20:14:42,344 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-07-21 20:14:42,345 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-07-21 20:14:42,345 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,345 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,345 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,345 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,345 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-07-21 20:14:42,346 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 20:14:42,346 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 20:14:42,346 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 20:14:42,346 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-07-21 20:14:42,346 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-07-21 20:14:42,346 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-07-21 20:14:42,346 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-07-21 20:14:42,346 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,347 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,347 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,347 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 20:14:42,347 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 20:14:42,347 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 20:14:42,347 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-07-21 20:14:42,347 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-07-21 20:14:42,348 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-07-21 20:14:42,348 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-07-21 20:14:42,348 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-07-21 20:14:42,348 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,348 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,348 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,348 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-07-21 20:14:42,348 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-07-21 20:14:42,349 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 20:14:42,349 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 20:14:42,349 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 20:14:42,349 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-07-21 20:14:42,349 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse5 (<= ~a12~0 |old(~a12~0)|)) (.cse0 (<= 7 ~a15~0)) (.cse7 (<= ~a24~0 |old(~a24~0)|)) (.cse6 (<= ~a21~0 |old(~a21~0)|)) (.cse8 (<= ~a15~0 |old(~a15~0)|)) (.cse9 (<= |old(~a21~0)| ~a21~0))) (let ((.cse3 (and .cse5 .cse0 .cse7 .cse6 .cse8 .cse9)) (.cse1 (not (<= 7 |old(~a15~0)|))) (.cse2 (not (< 11 |old(~a12~0)|))) (.cse4 (and .cse5 .cse7 .cse6 .cse8 .cse9))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 (not (< |old(~a21~0)| 9))) (or (not (<= |old(~a24~0)| 1)) .cse3 .cse1) (or (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a15~0)| 8)) .cse4) (or (< 11 ~a12~0) .cse2) (or .cse2 .cse4) (or (and .cse5 .cse6 .cse7 .cse8 .cse9) (not (<= |old(~a15~0)| 5)))))) [2020-07-21 20:14:42,349 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-07-21 20:14:42,350 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-07-21 20:14:42,350 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,350 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,350 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,350 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 20:14:42,350 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 20:14:42,350 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 20:14:42,351 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-07-21 20:14:42,351 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-07-21 20:14:42,351 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-07-21 20:14:42,351 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-07-21 20:14:42,351 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-07-21 20:14:42,351 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,351 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,351 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,351 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-07-21 20:14:42,351 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-07-21 20:14:42,351 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 20:14:42,352 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 20:14:42,352 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 20:14:42,352 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-07-21 20:14:42,352 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-07-21 20:14:42,352 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-07-21 20:14:42,352 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,352 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,352 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,352 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-07-21 20:14:42,352 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 20:14:42,352 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 20:14:42,352 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 20:14:42,353 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-07-21 20:14:42,353 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-07-21 20:14:42,353 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-07-21 20:14:42,353 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-07-21 20:14:42,353 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,353 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,353 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,353 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-07-21 20:14:42,353 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 20:14:42,353 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 20:14:42,353 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 20:14:42,353 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-07-21 20:14:42,353 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-07-21 20:14:42,353 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-07-21 20:14:42,354 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-07-21 20:14:42,354 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,354 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,354 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-07-21 20:14:42,354 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 20:14:42,354 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 20:14:42,354 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-07-21 20:14:42,354 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-07-21 20:14:42,355 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-07-21 20:14:42,355 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-07-21 20:14:42,355 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-07-21 20:14:42,355 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2020-07-21 20:14:42,355 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,355 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,355 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-07-21 20:14:42,355 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 20:14:42,355 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 20:14:42,355 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-07-21 20:14:42,355 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-07-21 20:14:42,356 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-07-21 20:14:42,356 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,356 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,356 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-07-21 20:14:42,356 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-07-21 20:14:42,356 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 20:14:42,356 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 20:14:42,356 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-07-21 20:14:42,356 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-07-21 20:14:42,356 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-07-21 20:14:42,356 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-07-21 20:14:42,356 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,356 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,357 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-07-21 20:14:42,357 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-07-21 20:14:42,357 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 20:14:42,357 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 20:14:42,357 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-07-21 20:14:42,357 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-07-21 20:14:42,357 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-07-21 20:14:42,357 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,357 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,357 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,357 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-07-21 20:14:42,357 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-07-21 20:14:42,357 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 20:14:42,357 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 20:14:42,358 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-07-21 20:14:42,358 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-07-21 20:14:42,358 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,358 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,358 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 20:14:42,358 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,358 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-07-21 20:14:42,358 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-07-21 20:14:42,358 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-07-21 20:14:42,358 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 20:14:42,358 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 20:14:42,358 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 20:14:42,358 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-07-21 20:14:42,359 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-07-21 20:14:42,359 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-07-21 20:14:42,359 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-07-21 20:14:42,359 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,359 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,359 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,359 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-07-21 20:14:42,359 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 20:14:42,359 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 20:14:42,359 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 20:14:42,359 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-07-21 20:14:42,359 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-07-21 20:14:42,359 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-07-21 20:14:42,359 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-07-21 20:14:42,360 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,360 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,360 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,360 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-07-21 20:14:42,360 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-07-21 20:14:42,360 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 20:14:42,360 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 20:14:42,360 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 20:14:42,360 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-07-21 20:14:42,360 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-07-21 20:14:42,360 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-07-21 20:14:42,360 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,360 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,361 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,361 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-07-21 20:14:42,361 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 20:14:42,361 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 20:14:42,361 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 20:14:42,361 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-07-21 20:14:42,361 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-07-21 20:14:42,361 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-07-21 20:14:42,361 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-07-21 20:14:42,362 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-07-21 20:14:42,362 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,362 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,362 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 20:14:42,362 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-07-21 20:14:42,362 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 20:14:42,362 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 20:14:42,362 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 20:14:42,362 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-07-21 20:14:42,362 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:14:42,362 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a24~0 1) (<= (+ ~a12~0 49) 0) (<= 7 ~a15~0) (<= ~a15~0 8) (<= 7 ~a21~0) (<= ~a21~0 7)) [2020-07-21 20:14:42,363 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:14:42,363 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:14:42,363 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (<= |old(~a24~0)| 1)) (and (<= ~a12~0 |old(~a12~0)|) (<= 7 ~a15~0) (<= ~a24~0 |old(~a24~0)|) (<= ~a15~0 |old(~a15~0)|) (<= ~a21~0 7) (<= |old(~a21~0)| ~a21~0)) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= 7 |old(~a21~0)|)) (not (<= 7 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (not (<= |old(~a21~0)| 7))) [2020-07-21 20:14:42,363 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-07-21 20:14:42,363 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (<= 7 ~a15~0))) (or (not (<= |old(~a24~0)| 1)) (< 11 ~a12~0) (<= ~a15~0 5) (and (< ~a24~0 2) .cse0) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= 7 |old(~a21~0)|)) (not (<= 7 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (and (<= ~a15~0 8) (<= 7 ~a21~0)) (not (<= |old(~a21~0)| 7)) (and (< ~a21~0 9) .cse0))) [2020-07-21 20:14:42,364 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-21 20:14:42,364 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-07-21 20:14:42,364 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse0 (<= 7 ~a15~0))) (or (not (<= |old(~a24~0)| 1)) (< 11 ~a12~0) (<= ~a15~0 5) (and (< ~a24~0 2) .cse0) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= 7 |old(~a21~0)|)) (not (<= 7 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (and (<= ~a15~0 8) (<= 7 ~a21~0)) (not (<= |old(~a21~0)| 7)) (and (< ~a21~0 9) .cse0))) [2020-07-21 20:14:42,364 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-07-21 20:14:42,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:14:42 BoogieIcfgContainer [2020-07-21 20:14:42,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:14:42,388 INFO L168 Benchmark]: Toolchain (without parser) took 23178.71 ms. Allocated memory was 145.2 MB in the beginning and 626.5 MB in the end (delta: 481.3 MB). Free memory was 99.8 MB in the beginning and 547.6 MB in the end (delta: -447.9 MB). Peak memory consumption was 498.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:14:42,389 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 20:14:42,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 955.42 ms. Allocated memory was 145.2 MB in the beginning and 207.1 MB in the end (delta: 61.9 MB). Free memory was 99.6 MB in the beginning and 170.3 MB in the end (delta: -70.7 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:14:42,391 INFO L168 Benchmark]: Boogie Preprocessor took 167.28 ms. Allocated memory is still 207.1 MB. Free memory was 170.3 MB in the beginning and 164.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:14:42,392 INFO L168 Benchmark]: RCFGBuilder took 1522.99 ms. Allocated memory was 207.1 MB in the beginning and 240.1 MB in the end (delta: 33.0 MB). Free memory was 164.5 MB in the beginning and 159.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. [2020-07-21 20:14:42,393 INFO L168 Benchmark]: TraceAbstraction took 20523.46 ms. Allocated memory was 240.1 MB in the beginning and 626.5 MB in the end (delta: 386.4 MB). Free memory was 158.2 MB in the beginning and 547.6 MB in the end (delta: -389.5 MB). Peak memory consumption was 462.4 MB. Max. memory is 7.1 GB. [2020-07-21 20:14:42,397 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 955.42 ms. Allocated memory was 145.2 MB in the beginning and 207.1 MB in the end (delta: 61.9 MB). Free memory was 99.6 MB in the beginning and 170.3 MB in the end (delta: -70.7 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 167.28 ms. Allocated memory is still 207.1 MB. Free memory was 170.3 MB in the beginning and 164.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1522.99 ms. Allocated memory was 207.1 MB in the beginning and 240.1 MB in the end (delta: 33.0 MB). Free memory was 164.5 MB in the beginning and 159.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20523.46 ms. Allocated memory was 240.1 MB in the beginning and 626.5 MB in the end (delta: 386.4 MB). Free memory was 158.2 MB in the beginning and 547.6 MB in the end (delta: -389.5 MB). Peak memory consumption was 462.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 127]: 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: 880]: Loop Invariant Derived loop invariant: (((((((((!(\old(a24) <= 1) || 11 < a12) || a15 <= 5) || (a24 < 2 && 7 <= a15)) || !(\old(a12) + 49 <= 0)) || !(7 <= \old(a21))) || !(7 <= \old(a15))) || !(\old(a15) <= 8)) || (a15 <= 8 && 7 <= a21)) || !(\old(a21) <= 7)) || (a21 < 9 && 7 <= a15) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.9s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 659 SDtfs, 4339 SDslu, 266 SDs, 0 SdLazy, 6874 SolverSat, 1707 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3329 GetRequests, 3275 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3364occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 1512 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 76 PreInvPairs, 134 NumberOfFragments, 336 HoareAnnotationTreeSize, 76 FomulaSimplifications, 2991 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2430 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1979 NumberOfCodeBlocks, 1979 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3288 ConstructedInterpolants, 43 QuantifiedInterpolants, 3788720 SizeOfPredicates, 17 NumberOfNonLiveVariables, 3478 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 4156/4574 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...