/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 BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label31.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:50:57,824 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 22:50:57,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:50:57,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:50:57,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:50:57,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:50:57,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:50:57,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:50:57,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:50:57,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:50:57,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:50:57,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:50:57,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:50:57,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:50:57,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:50:57,873 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 22:50:57,889 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:50:57,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:50:57,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:50:57,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:50:57,891 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:50:57,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:50:57,892 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:50:57,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:50:57,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:50:57,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:50:57,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:50:57,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:50:57,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:50:57,893 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:50:57,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:50:57,893 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:50:57,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:50:57,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:50:57,894 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:50:57,894 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:50:57,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:50:57,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:50:57,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:50:57,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:50:57,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:50:57,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:50:57,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:57,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:50:57,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:50:57,897 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 -> BIGGEST_EQUIVALENCE_CLASS 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 -> 4 [2020-07-21 22:50:58,188 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:50:58,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:50:58,208 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:50:58,209 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:50:58,211 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:50:58,213 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label31.c [2020-07-21 22:50:58,283 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0ef460a9/6a85c79d95524d88afb3e98a942cbced/FLAGc64795b0f [2020-07-21 22:50:58,894 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:50:58,894 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label31.c [2020-07-21 22:50:58,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0ef460a9/6a85c79d95524d88afb3e98a942cbced/FLAGc64795b0f [2020-07-21 22:50:59,162 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0ef460a9/6a85c79d95524d88afb3e98a942cbced [2020-07-21 22:50:59,170 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:50:59,172 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:50:59,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:50:59,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:50:59,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:50:59,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:50:59" (1/1) ... [2020-07-21 22:50:59,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e005e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:59, skipping insertion in model container [2020-07-21 22:50:59,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:50:59" (1/1) ... [2020-07-21 22:50:59,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:50:59,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:50:59,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:50:59,773 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:50:59,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:50:59,881 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:50:59,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:59 WrapperNode [2020-07-21 22:50:59,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:50:59,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:50:59,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:50:59,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:50:59,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:59" (1/1) ... [2020-07-21 22:50:59,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:59" (1/1) ... [2020-07-21 22:50:59,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:59" (1/1) ... [2020-07-21 22:50:59,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:59" (1/1) ... [2020-07-21 22:50:59,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:59" (1/1) ... [2020-07-21 22:50:59,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:59" (1/1) ... [2020-07-21 22:50:59,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:59" (1/1) ... [2020-07-21 22:50:59,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:50:59,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:50:59,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:50:59,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:50:59,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:51:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:51:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:51:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:51:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:51:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:51:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:51:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:51:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:51:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:51:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:51:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:51:01,171 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:51:01,172 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:51:01,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:51:01 BoogieIcfgContainer [2020-07-21 22:51:01,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:51:01,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:51:01,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:51:01,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:51:01,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:50:59" (1/3) ... [2020-07-21 22:51:01,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dad752e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:51:01, skipping insertion in model container [2020-07-21 22:51:01,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:59" (2/3) ... [2020-07-21 22:51:01,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dad752e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:51:01, skipping insertion in model container [2020-07-21 22:51:01,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:51:01" (3/3) ... [2020-07-21 22:51:01,192 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label31.c [2020-07-21 22:51:01,202 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:51:01,214 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:51:01,227 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:51:01,258 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:51:01,259 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:51:01,259 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:51:01,259 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:51:01,259 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:51:01,259 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:51:01,260 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:51:01,260 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:51:01,286 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 22:51:01,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-21 22:51:01,297 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:01,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:01,299 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:01,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:01,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1379021910, now seen corresponding path program 1 times [2020-07-21 22:51:01,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:01,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503929628] [2020-07-21 22:51:01,315 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:51:01,474 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:51:01,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:01,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-21 22:51:01,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:02,278 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 22:51:02,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:51:02,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503929628] [2020-07-21 22:51:02,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:51:02,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 22:51:02,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822104886] [2020-07-21 22:51:02,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 22:51:02,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:02,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 22:51:02,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:51:02,305 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 11 states. [2020-07-21 22:51:03,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:03,911 INFO L93 Difference]: Finished difference Result 472 states and 791 transitions. [2020-07-21 22:51:03,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:51:03,914 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-07-21 22:51:03,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:03,927 INFO L225 Difference]: With dead ends: 472 [2020-07-21 22:51:03,927 INFO L226 Difference]: Without dead ends: 203 [2020-07-21 22:51:03,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-07-21 22:51:03,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-21 22:51:03,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-07-21 22:51:03,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-21 22:51:03,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2020-07-21 22:51:03,991 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 98 [2020-07-21 22:51:03,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:03,992 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2020-07-21 22:51:03,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 22:51:03,992 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2020-07-21 22:51:03,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-07-21 22:51:03,998 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:03,999 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:04,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:04,204 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:04,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:04,205 INFO L82 PathProgramCache]: Analyzing trace with hash -785037199, now seen corresponding path program 1 times [2020-07-21 22:51:04,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:04,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [35223365] [2020-07-21 22:51:04,207 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:51:04,301 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:51:04,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:04,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-21 22:51:04,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:04,966 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:51:04,969 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:51:04,969 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:51:05,051 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:05,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:05,738 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-07-21 22:51:06,161 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 22:51:06,166 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 7 conjuncts [2020-07-21 22:51:06,167 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 6 conjuncts [2020-07-21 22:51:06,169 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 22:51:06,170 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 22:51:06,171 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:06,172 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 22:51:06,176 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 22:51:06,178 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 22:51:06,179 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:06,187 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:06,189 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:06,191 INFO L501 QuantifierPusher]: Distributing 14 disjuncts over 3 conjuncts [2020-07-21 22:51:06,192 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:51:06,193 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:51:06,194 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:06,198 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:06,199 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:06,200 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:06,201 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:06,203 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:06,204 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:06,209 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:51:06,210 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:06,213 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:51:06,214 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:06,774 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 37 [2020-07-21 22:51:06,777 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 8, 6, 7, 1] term [2020-07-21 22:51:06,778 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:51:06,837 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:06,838 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:06,906 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:06,936 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:07,129 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:07,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [35223365] [2020-07-21 22:51:07,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:07,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2020-07-21 22:51:07,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614641986] [2020-07-21 22:51:07,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-21 22:51:07,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:07,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-21 22:51:07,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-07-21 22:51:07,138 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand 25 states. [2020-07-21 22:51:08,155 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-07-21 22:51:08,971 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-07-21 22:51:09,419 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-07-21 22:51:09,639 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-07-21 22:51:10,099 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:51:12,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:12,567 INFO L93 Difference]: Finished difference Result 588 states and 878 transitions. [2020-07-21 22:51:12,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-21 22:51:12,568 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 106 [2020-07-21 22:51:12,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:12,576 INFO L225 Difference]: With dead ends: 588 [2020-07-21 22:51:12,576 INFO L226 Difference]: Without dead ends: 451 [2020-07-21 22:51:12,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 184 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=551, Invalid=1611, Unknown=0, NotChecked=0, Total=2162 [2020-07-21 22:51:12,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-07-21 22:51:12,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 417. [2020-07-21 22:51:12,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-21 22:51:12,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 548 transitions. [2020-07-21 22:51:12,642 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 548 transitions. Word has length 106 [2020-07-21 22:51:12,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:12,642 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 548 transitions. [2020-07-21 22:51:12,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-21 22:51:12,643 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 548 transitions. [2020-07-21 22:51:12,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-07-21 22:51:12,649 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:12,650 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:12,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:12,856 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:12,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:12,857 INFO L82 PathProgramCache]: Analyzing trace with hash -620983057, now seen corresponding path program 1 times [2020-07-21 22:51:12,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:12,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392733363] [2020-07-21 22:51:12,858 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:51:12,957 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:51:12,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:12,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:51:12,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:12,988 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:12,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:51:12,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392733363] [2020-07-21 22:51:12,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:51:12,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:51:12,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36127215] [2020-07-21 22:51:12,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:51:12,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:12,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:51:12,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:51:12,991 INFO L87 Difference]: Start difference. First operand 417 states and 548 transitions. Second operand 3 states. [2020-07-21 22:51:13,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:13,530 INFO L93 Difference]: Finished difference Result 1042 states and 1433 transitions. [2020-07-21 22:51:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:51:13,530 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-07-21 22:51:13,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:13,538 INFO L225 Difference]: With dead ends: 1042 [2020-07-21 22:51:13,538 INFO L226 Difference]: Without dead ends: 691 [2020-07-21 22:51:13,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 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 22:51:13,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2020-07-21 22:51:13,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2020-07-21 22:51:13,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-07-21 22:51:13,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 897 transitions. [2020-07-21 22:51:13,595 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 897 transitions. Word has length 109 [2020-07-21 22:51:13,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:13,595 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 897 transitions. [2020-07-21 22:51:13,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:51:13,596 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 897 transitions. [2020-07-21 22:51:13,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-21 22:51:13,603 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:13,604 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:13,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:13,818 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:13,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:13,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1365830830, now seen corresponding path program 1 times [2020-07-21 22:51:13,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:13,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54481847] [2020-07-21 22:51:13,819 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:51:13,904 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:51:13,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:13,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 22:51:13,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:13,995 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:13,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:14,189 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 22:51:14,239 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:14,240 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 1] term [2020-07-21 22:51:14,242 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:14,244 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:51:14,244 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:14,244 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:14,353 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:14,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54481847] [2020-07-21 22:51:14,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:14,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:51:14,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444671506] [2020-07-21 22:51:14,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:51:14,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:14,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:51:14,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:51:14,357 INFO L87 Difference]: Start difference. First operand 691 states and 897 transitions. Second operand 7 states. [2020-07-21 22:51:15,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:15,707 INFO L93 Difference]: Finished difference Result 1933 states and 2552 transitions. [2020-07-21 22:51:15,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:51:15,707 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 124 [2020-07-21 22:51:15,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:15,714 INFO L225 Difference]: With dead ends: 1933 [2020-07-21 22:51:15,714 INFO L226 Difference]: Without dead ends: 1169 [2020-07-21 22:51:15,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 244 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:51:15,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2020-07-21 22:51:15,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1106. [2020-07-21 22:51:15,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1106 states. [2020-07-21 22:51:15,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1302 transitions. [2020-07-21 22:51:15,753 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1302 transitions. Word has length 124 [2020-07-21 22:51:15,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:15,754 INFO L479 AbstractCegarLoop]: Abstraction has 1106 states and 1302 transitions. [2020-07-21 22:51:15,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:51:15,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1302 transitions. [2020-07-21 22:51:15,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-21 22:51:15,758 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:15,758 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:15,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:15,973 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:15,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:15,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1656932566, now seen corresponding path program 1 times [2020-07-21 22:51:15,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:15,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217382558] [2020-07-21 22:51:15,974 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:51:16,076 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:51:16,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:16,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 29 conjunts are in the unsatisfiable core [2020-07-21 22:51:16,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:16,160 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 22:51:16,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:16,353 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-07-21 22:51:16,404 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:16,405 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:16,406 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:51:16,407 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:16,407 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:16,408 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:51:16,408 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:16,571 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 22:51:16,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217382558] [2020-07-21 22:51:16,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 22:51:16,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2020-07-21 22:51:16,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770362869] [2020-07-21 22:51:16,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 22:51:16,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:16,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 22:51:16,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:51:16,573 INFO L87 Difference]: Start difference. First operand 1106 states and 1302 transitions. Second operand 5 states. [2020-07-21 22:51:17,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:17,426 INFO L93 Difference]: Finished difference Result 3121 states and 3747 transitions. [2020-07-21 22:51:17,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 22:51:17,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2020-07-21 22:51:17,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:17,446 INFO L225 Difference]: With dead ends: 3121 [2020-07-21 22:51:17,446 INFO L226 Difference]: Without dead ends: 1944 [2020-07-21 22:51:17,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 300 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:51:17,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2020-07-21 22:51:17,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1944. [2020-07-21 22:51:17,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1944 states. [2020-07-21 22:51:17,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2224 transitions. [2020-07-21 22:51:17,544 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2224 transitions. Word has length 154 [2020-07-21 22:51:17,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:17,544 INFO L479 AbstractCegarLoop]: Abstraction has 1944 states and 2224 transitions. [2020-07-21 22:51:17,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 22:51:17,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2224 transitions. [2020-07-21 22:51:17,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-21 22:51:17,550 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:17,550 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:17,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:17,765 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:17,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:17,765 INFO L82 PathProgramCache]: Analyzing trace with hash -839439291, now seen corresponding path program 1 times [2020-07-21 22:51:17,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:17,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760782710] [2020-07-21 22:51:17,767 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:51:17,901 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:51:17,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:17,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-21 22:51:17,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:17,928 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 22:51:17,928 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:51:17,985 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 76 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 22:51:17,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:18,179 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 22:51:18,227 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:18,228 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:18,229 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 22:51:18,229 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:18,230 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:51:18,230 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:18,231 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:18,232 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:18,232 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:18,233 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:18,234 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:18,264 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:18,313 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:18,314 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:18,462 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 78 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 22:51:18,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760782710] [2020-07-21 22:51:18,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:18,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2020-07-21 22:51:18,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171983378] [2020-07-21 22:51:18,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:51:18,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:18,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:51:18,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:51:18,465 INFO L87 Difference]: Start difference. First operand 1944 states and 2224 transitions. Second operand 8 states. [2020-07-21 22:51:19,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:19,456 INFO L93 Difference]: Finished difference Result 4944 states and 5813 transitions. [2020-07-21 22:51:19,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:51:19,456 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 171 [2020-07-21 22:51:19,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:19,473 INFO L225 Difference]: With dead ends: 4944 [2020-07-21 22:51:19,473 INFO L226 Difference]: Without dead ends: 2927 [2020-07-21 22:51:19,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 335 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:51:19,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2020-07-21 22:51:19,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2639. [2020-07-21 22:51:19,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2639 states. [2020-07-21 22:51:19,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 3047 transitions. [2020-07-21 22:51:19,586 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 3047 transitions. Word has length 171 [2020-07-21 22:51:19,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:19,587 INFO L479 AbstractCegarLoop]: Abstraction has 2639 states and 3047 transitions. [2020-07-21 22:51:19,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:51:19,587 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 3047 transitions. [2020-07-21 22:51:19,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-07-21 22:51:19,595 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:19,595 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-21 22:51:19,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:19,811 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:19,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:19,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1163748773, now seen corresponding path program 1 times [2020-07-21 22:51:19,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:19,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779894276] [2020-07-21 22:51:19,812 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:51:19,927 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:51:19,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:19,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:51:19,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:19,981 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 22:51:19,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:20,080 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 141 proven. 15 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 22:51:20,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779894276] [2020-07-21 22:51:20,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:20,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:51:20,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003885112] [2020-07-21 22:51:20,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:51:20,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:20,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:51:20,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:51:20,084 INFO L87 Difference]: Start difference. First operand 2639 states and 3047 transitions. Second operand 7 states. [2020-07-21 22:51:21,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:21,149 INFO L93 Difference]: Finished difference Result 5623 states and 6534 transitions. [2020-07-21 22:51:21,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 22:51:21,152 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 205 [2020-07-21 22:51:21,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:21,164 INFO L225 Difference]: With dead ends: 5623 [2020-07-21 22:51:21,164 INFO L226 Difference]: Without dead ends: 3050 [2020-07-21 22:51:21,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 407 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:51:21,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2020-07-21 22:51:21,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 2093. [2020-07-21 22:51:21,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2093 states. [2020-07-21 22:51:21,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 2375 transitions. [2020-07-21 22:51:21,228 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 2375 transitions. Word has length 205 [2020-07-21 22:51:21,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:21,228 INFO L479 AbstractCegarLoop]: Abstraction has 2093 states and 2375 transitions. [2020-07-21 22:51:21,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:51:21,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 2375 transitions. [2020-07-21 22:51:21,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-07-21 22:51:21,234 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:21,234 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 22:51:21,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:21,449 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:21,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:21,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1790490479, now seen corresponding path program 1 times [2020-07-21 22:51:21,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:21,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633429980] [2020-07-21 22:51:21,451 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:51:21,587 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:51:21,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:21,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-21 22:51:21,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:21,698 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 149 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 22:51:21,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:21,881 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-07-21 22:51:21,922 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:21,924 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:21,924 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:21,925 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 1] term [2020-07-21 22:51:21,925 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:21,926 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:51:21,926 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:22,135 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 122 proven. 31 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 22:51:22,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633429980] [2020-07-21 22:51:22,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:22,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2020-07-21 22:51:22,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177235293] [2020-07-21 22:51:22,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 22:51:22,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:22,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 22:51:22,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:51:22,137 INFO L87 Difference]: Start difference. First operand 2093 states and 2375 transitions. Second operand 12 states. [2020-07-21 22:51:24,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:24,186 INFO L93 Difference]: Finished difference Result 5548 states and 6452 transitions. [2020-07-21 22:51:24,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-21 22:51:24,187 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 227 [2020-07-21 22:51:24,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:24,203 INFO L225 Difference]: With dead ends: 5548 [2020-07-21 22:51:24,203 INFO L226 Difference]: Without dead ends: 3521 [2020-07-21 22:51:24,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 442 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=188, Invalid=514, Unknown=0, NotChecked=0, Total=702 [2020-07-21 22:51:24,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3521 states. [2020-07-21 22:51:24,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3521 to 3203. [2020-07-21 22:51:24,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3203 states. [2020-07-21 22:51:24,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 3607 transitions. [2020-07-21 22:51:24,285 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 3607 transitions. Word has length 227 [2020-07-21 22:51:24,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:24,286 INFO L479 AbstractCegarLoop]: Abstraction has 3203 states and 3607 transitions. [2020-07-21 22:51:24,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 22:51:24,286 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 3607 transitions. [2020-07-21 22:51:24,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-21 22:51:24,294 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:24,295 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 22:51:24,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:24,508 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:24,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:24,509 INFO L82 PathProgramCache]: Analyzing trace with hash -2097217942, now seen corresponding path program 1 times [2020-07-21 22:51:24,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:24,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766893697] [2020-07-21 22:51:24,509 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:24,663 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:51:24,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:24,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:51:24,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:24,748 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 22:51:24,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:51:24,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1766893697] [2020-07-21 22:51:24,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:51:24,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:51:24,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473629877] [2020-07-21 22:51:24,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:51:24,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:24,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:51:24,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:51:24,756 INFO L87 Difference]: Start difference. First operand 3203 states and 3607 transitions. Second operand 3 states. [2020-07-21 22:51:25,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:25,234 INFO L93 Difference]: Finished difference Result 6612 states and 7453 transitions. [2020-07-21 22:51:25,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:51:25,237 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-07-21 22:51:25,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:25,250 INFO L225 Difference]: With dead ends: 6612 [2020-07-21 22:51:25,251 INFO L226 Difference]: Without dead ends: 3475 [2020-07-21 22:51:25,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 238 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 22:51:25,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3475 states. [2020-07-21 22:51:25,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3475 to 3203. [2020-07-21 22:51:25,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3203 states. [2020-07-21 22:51:25,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 3604 transitions. [2020-07-21 22:51:25,325 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 3604 transitions. Word has length 240 [2020-07-21 22:51:25,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:25,325 INFO L479 AbstractCegarLoop]: Abstraction has 3203 states and 3604 transitions. [2020-07-21 22:51:25,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:51:25,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 3604 transitions. [2020-07-21 22:51:25,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-07-21 22:51:25,335 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:25,336 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2020-07-21 22:51:25,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:25,549 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:25,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:25,549 INFO L82 PathProgramCache]: Analyzing trace with hash -341998397, now seen corresponding path program 1 times [2020-07-21 22:51:25,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:25,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101321669] [2020-07-21 22:51:25,551 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:25,698 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:51:25,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:25,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 22:51:25,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:25,786 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 231 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 22:51:25,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:25,909 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:51:25,909 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:26,202 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 231 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 22:51:26,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101321669] [2020-07-21 22:51:26,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:26,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:51:26,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839315635] [2020-07-21 22:51:26,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:51:26,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:26,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:51:26,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:51:26,208 INFO L87 Difference]: Start difference. First operand 3203 states and 3604 transitions. Second operand 7 states. [2020-07-21 22:51:27,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:27,450 INFO L93 Difference]: Finished difference Result 6485 states and 7299 transitions. [2020-07-21 22:51:27,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:51:27,450 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 263 [2020-07-21 22:51:27,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:27,463 INFO L225 Difference]: With dead ends: 6485 [2020-07-21 22:51:27,463 INFO L226 Difference]: Without dead ends: 3205 [2020-07-21 22:51:27,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 524 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:51:27,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3205 states. [2020-07-21 22:51:27,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3205 to 3197. [2020-07-21 22:51:27,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3197 states. [2020-07-21 22:51:27,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 3462 transitions. [2020-07-21 22:51:27,528 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 3462 transitions. Word has length 263 [2020-07-21 22:51:27,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:27,528 INFO L479 AbstractCegarLoop]: Abstraction has 3197 states and 3462 transitions. [2020-07-21 22:51:27,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:51:27,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 3462 transitions. [2020-07-21 22:51:27,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-07-21 22:51:27,538 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:27,539 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-07-21 22:51:27,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:27,752 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:27,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:27,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1276949654, now seen corresponding path program 1 times [2020-07-21 22:51:27,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:27,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8405217] [2020-07-21 22:51:27,753 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:27,912 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:51:27,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:27,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 22:51:27,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:27,936 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-07-21 22:51:27,936 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:51:27,996 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 283 proven. 2 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-07-21 22:51:27,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:28,154 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:28,155 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:28,156 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:28,179 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:28,316 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 283 proven. 2 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-07-21 22:51:28,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8405217] [2020-07-21 22:51:28,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:28,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:51:28,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230987346] [2020-07-21 22:51:28,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:51:28,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:28,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:51:28,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:51:28,318 INFO L87 Difference]: Start difference. First operand 3197 states and 3462 transitions. Second operand 7 states. [2020-07-21 22:51:29,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:29,569 INFO L93 Difference]: Finished difference Result 6642 states and 7250 transitions. [2020-07-21 22:51:29,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:51:29,570 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 292 [2020-07-21 22:51:29,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:29,583 INFO L225 Difference]: With dead ends: 6642 [2020-07-21 22:51:29,583 INFO L226 Difference]: Without dead ends: 3511 [2020-07-21 22:51:29,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 581 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:51:29,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3511 states. [2020-07-21 22:51:29,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3511 to 3471. [2020-07-21 22:51:29,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3471 states. [2020-07-21 22:51:29,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3471 states to 3471 states and 3740 transitions. [2020-07-21 22:51:29,659 INFO L78 Accepts]: Start accepts. Automaton has 3471 states and 3740 transitions. Word has length 292 [2020-07-21 22:51:29,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:29,659 INFO L479 AbstractCegarLoop]: Abstraction has 3471 states and 3740 transitions. [2020-07-21 22:51:29,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:51:29,659 INFO L276 IsEmpty]: Start isEmpty. Operand 3471 states and 3740 transitions. [2020-07-21 22:51:29,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-07-21 22:51:29,667 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:29,668 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:29,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:29,881 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:29,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:29,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1917531074, now seen corresponding path program 1 times [2020-07-21 22:51:29,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:29,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730776964] [2020-07-21 22:51:29,882 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:30,082 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:51:30,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:30,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 803 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:51:30,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:30,163 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-07-21 22:51:30,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:51:30,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730776964] [2020-07-21 22:51:30,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:51:30,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:51:30,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233652070] [2020-07-21 22:51:30,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:51:30,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:30,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:51:30,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:51:30,165 INFO L87 Difference]: Start difference. First operand 3471 states and 3740 transitions. Second operand 3 states. [2020-07-21 22:51:30,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:30,614 INFO L93 Difference]: Finished difference Result 5901 states and 6356 transitions. [2020-07-21 22:51:30,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:51:30,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 312 [2020-07-21 22:51:30,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:30,616 INFO L225 Difference]: With dead ends: 5901 [2020-07-21 22:51:30,616 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:51:30,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 310 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 22:51:30,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:51:30,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:51:30,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:51:30,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:51:30,626 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 312 [2020-07-21 22:51:30,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:30,627 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:51:30,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:51:30,627 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:51:30,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:51:30,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:30,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:51:31,516 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 180 [2020-07-21 22:51:31,711 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 171 [2020-07-21 22:51:33,855 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 238 DAG size of output: 104 [2020-07-21 22:51:34,846 WARN L193 SmtUtils]: Spent 944.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 64 [2020-07-21 22:51:35,733 WARN L193 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 64 [2020-07-21 22:51:35,737 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:51:35,737 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (<= |old(~a16~0)| ~a16~0) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 22:51:35,737 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:51:35,738 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 22:51:35,738 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 22:51:35,738 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,738 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,738 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,738 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,738 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,738 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,739 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 22:51:35,739 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 22:51:35,739 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 22:51:35,739 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 22:51:35,739 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 22:51:35,739 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 22:51:35,739 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 22:51:35,739 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 22:51:35,740 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 22:51:35,740 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 22:51:35,740 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,740 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,740 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,740 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,740 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,741 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,741 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 22:51:35,741 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 22:51:35,741 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 22:51:35,741 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 22:51:35,741 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 22:51:35,741 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 22:51:35,741 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 22:51:35,742 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 22:51:35,742 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 22:51:35,742 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 22:51:35,742 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 22:51:35,742 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 452) no Hoare annotation was computed. [2020-07-21 22:51:35,742 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 22:51:35,742 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 22:51:35,743 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 22:51:35,743 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 22:51:35,743 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,743 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,743 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,743 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,743 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,743 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 22:51:35,743 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 22:51:35,744 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 22:51:35,744 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 22:51:35,744 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 22:51:35,744 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 22:51:35,744 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 22:51:35,744 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 22:51:35,744 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 22:51:35,744 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,745 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,745 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,745 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,745 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,745 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 22:51:35,745 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 22:51:35,745 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 22:51:35,745 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 22:51:35,745 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 22:51:35,746 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 22:51:35,746 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 22:51:35,746 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 22:51:35,746 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 22:51:35,746 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 22:51:35,746 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 22:51:35,746 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 22:51:35,746 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 22:51:35,746 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,747 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,747 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,747 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,747 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,747 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 22:51:35,747 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 22:51:35,747 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 22:51:35,747 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 22:51:35,747 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 22:51:35,748 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 22:51:35,748 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 22:51:35,748 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 22:51:35,748 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 22:51:35,748 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,748 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,748 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,748 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,749 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,749 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,749 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 22:51:35,749 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,749 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 22:51:35,749 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 22:51:35,749 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 22:51:35,749 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 22:51:35,750 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 22:51:35,750 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 22:51:35,750 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 22:51:35,750 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 22:51:35,750 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 22:51:35,750 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 22:51:35,750 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 22:51:35,750 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 22:51:35,750 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 22:51:35,750 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,750 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,750 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,751 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,751 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,751 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 22:51:35,751 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 22:51:35,751 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 22:51:35,751 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 22:51:35,751 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 22:51:35,751 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 22:51:35,751 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 22:51:35,751 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 22:51:35,751 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,751 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,751 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,752 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,752 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,752 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 22:51:35,752 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 22:51:35,752 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 22:51:35,752 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 22:51:35,752 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 22:51:35,752 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 22:51:35,753 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 22:51:35,753 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 22:51:35,753 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 22:51:35,753 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 22:51:35,753 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse15 (= 1 |old(~a21~0)|)) (.cse26 (= 1 |old(~a20~0)|))) (let ((.cse6 (not .cse26)) (.cse13 (not .cse15)) (.cse2 (= 1 |old(~a17~0)|)) (.cse23 (<= ~a16~0 |old(~a16~0)|)) (.cse16 (= ~a7~0 |old(~a7~0)|)) (.cse0 (<= ~a8~0 13)) (.cse17 (= ~a17~0 |old(~a17~0)|)) (.cse25 (<= |old(~a16~0)| ~a16~0)) (.cse18 (= ~a20~0 |old(~a20~0)|)) (.cse19 (= ~a21~0 |old(~a21~0)|))) (let ((.cse7 (and .cse23 .cse16 .cse0 .cse17 .cse25 .cse18 .cse19)) (.cse3 (not (<= |old(~a8~0)| 13))) (.cse4 (not (<= |old(~a16~0)| 4))) (.cse9 (not (<= |old(~a16~0)| 5))) (.cse8 (not (= 15 |old(~a8~0)|))) (.cse10 (not (< 4 |old(~a16~0)|))) (.cse20 (not (< |old(~a16~0)| 6))) (.cse11 (not .cse2)) (.cse12 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 2 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|)))) (.cse14 (= 15 ~a8~0)) (.cse22 (not (= 1 |old(~a7~0)|))) (.cse21 (and (or .cse6 .cse13) (or .cse26 .cse15))) (.cse24 (= 1 ~a7~0)) (.cse1 (not (<= |old(~a7~0)| 0))) (.cse5 (not (= 8 ~a12~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse3 .cse4) (or .cse8 .cse1 .cse9 .cse10 (not (<= |old(~a20~0)| 0)) .cse11 .cse12 .cse13 .cse14 .cse5) (or .cse7 (and (or .cse11 .cse13) (or .cse2 .cse15)) .cse3 (not (<= 6 |old(~a16~0)|))) (or .cse6 (and .cse16 .cse0 .cse17 (<= ~a16~0 5) (< 4 ~a16~0) .cse18 .cse19) .cse20 .cse3 .cse10 .cse11) (or .cse7 .cse3 .cse21 .cse4) (or .cse22 (and .cse23 .cse24 .cse19) .cse9 .cse13) (or .cse8 .cse1 .cse10 .cse20 .cse11 .cse21 .cse12 .cse13 .cse14 .cse5) (or .cse22 .cse21 .cse13 (and .cse24 (= 1 ~a20~0) .cse19)) (or .cse1 (and .cse23 .cse16 .cse25 .cse17 (= 1 ~a21~0) .cse18) .cse13 .cse5))))) [2020-07-21 22:51:35,754 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 22:51:35,754 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,754 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,754 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,754 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,754 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 22:51:35,754 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,755 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,755 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 22:51:35,755 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 22:51:35,755 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 22:51:35,755 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 22:51:35,755 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 22:51:35,755 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 22:51:35,755 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 22:51:35,755 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 22:51:35,756 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 22:51:35,756 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 22:51:35,756 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 22:51:35,756 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 22:51:35,756 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,756 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,756 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,756 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,757 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,757 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 22:51:35,757 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,757 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 22:51:35,757 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 22:51:35,757 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 22:51:35,757 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 22:51:35,757 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 22:51:35,758 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 22:51:35,758 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 22:51:35,758 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 22:51:35,758 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 22:51:35,758 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 22:51:35,758 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 22:51:35,758 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 22:51:35,758 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 22:51:35,758 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 22:51:35,758 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,759 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,759 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,759 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,759 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,759 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:35,759 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 22:51:35,759 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 22:51:35,759 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 22:51:35,759 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 22:51:35,760 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 22:51:35,760 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 22:51:35,760 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 22:51:35,760 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 22:51:35,760 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 22:51:35,760 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 22:51:35,760 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:51:35,760 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (= 1 ~a21~0) (= 1 ~a20~0) (= 15 ~a8~0) (= 5 ~a16~0) (= 8 ~a12~0)) [2020-07-21 22:51:35,760 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:51:35,761 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:51:35,761 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= 1 ~a21~0) (= ~a20~0 |old(~a20~0)|) (= 15 ~a8~0) (= 5 ~a16~0)) (not (<= |old(~a7~0)| 0)) (not (< 4 |old(~a16~0)|)) (not (< |old(~a16~0)| 6)) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0))) [2020-07-21 22:51:35,761 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 22:51:35,761 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (= 1 ~a21~0))) (let ((.cse1 (not .cse2)) (.cse6 (= 1 ~a20~0))) (let ((.cse4 (<= ~a16~0 4)) (.cse5 (or (and (not .cse6) .cse1) (and .cse2 .cse6))) (.cse3 (<= ~a8~0 13)) (.cse0 (= 1 ~a17~0)) (.cse7 (= 1 ~a7~0)) (.cse8 (<= ~a16~0 5))) (or (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (and (or (and (not .cse0) .cse1) (and .cse0 .cse2)) .cse3 (<= 6 ~a16~0)) (and .cse3 .cse4 .cse5) (and .cse3 .cse6 .cse4) (not (= 1 |old(~a20~0)|)) (and (<= ~a7~0 0) (= ~a21~0 |old(~a21~0)|)) (and .cse7 .cse2 .cse5) (not (< |old(~a16~0)| 6)) (and .cse3 .cse0 .cse8 .cse6) (and .cse7 .cse8 .cse2) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)))))) [2020-07-21 22:51:35,761 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 22:51:35,761 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 22:51:35,762 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (= 1 ~a21~0))) (let ((.cse1 (not .cse2)) (.cse6 (= 1 ~a20~0))) (let ((.cse4 (<= ~a16~0 4)) (.cse5 (or (and (not .cse6) .cse1) (and .cse2 .cse6))) (.cse3 (<= ~a8~0 13)) (.cse0 (= 1 ~a17~0)) (.cse7 (= 1 ~a7~0)) (.cse8 (<= ~a16~0 5))) (or (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (and (or (and (not .cse0) .cse1) (and .cse0 .cse2)) .cse3 (<= 6 ~a16~0)) (and .cse3 .cse4 .cse5) (and .cse3 .cse6 .cse4) (not (= 1 |old(~a20~0)|)) (and (<= ~a7~0 0) (= ~a21~0 |old(~a21~0)|)) (and .cse7 .cse2 .cse5) (not (< |old(~a16~0)| 6)) (and .cse3 .cse0 .cse8 .cse6) (and .cse7 .cse8 .cse2) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)))))) [2020-07-21 22:51:35,762 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 22:51:35,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:51:35 BoogieIcfgContainer [2020-07-21 22:51:35,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:51:35,784 INFO L168 Benchmark]: Toolchain (without parser) took 36612.80 ms. Allocated memory was 137.9 MB in the beginning and 659.6 MB in the end (delta: 521.7 MB). Free memory was 100.0 MB in the beginning and 600.8 MB in the end (delta: -500.8 MB). Peak memory consumption was 518.6 MB. Max. memory is 7.1 GB. [2020-07-21 22:51:35,785 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 22:51:35,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.39 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 99.8 MB in the beginning and 169.7 MB in the end (delta: -69.9 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2020-07-21 22:51:35,786 INFO L168 Benchmark]: Boogie Preprocessor took 109.94 ms. Allocated memory is still 203.4 MB. Free memory was 169.7 MB in the beginning and 164.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:51:35,786 INFO L168 Benchmark]: RCFGBuilder took 1188.30 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 164.7 MB in the beginning and 179.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:51:35,787 INFO L168 Benchmark]: TraceAbstraction took 34599.41 ms. Allocated memory was 235.4 MB in the beginning and 659.6 MB in the end (delta: 424.1 MB). Free memory was 177.6 MB in the beginning and 600.8 MB in the end (delta: -423.2 MB). Peak memory consumption was 498.7 MB. Max. memory is 7.1 GB. [2020-07-21 22:51:35,790 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 709.39 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 99.8 MB in the beginning and 169.7 MB in the end (delta: -69.9 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.94 ms. Allocated memory is still 203.4 MB. Free memory was 169.7 MB in the beginning and 164.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1188.30 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 164.7 MB in the beginning and 179.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34599.41 ms. Allocated memory was 235.4 MB in the beginning and 659.6 MB in the end (delta: 424.1 MB). Free memory was 177.6 MB in the beginning and 600.8 MB in the end (delta: -423.2 MB). Peak memory consumption was 498.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 452]: 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: 583]: Loop Invariant Derived loop invariant: (((((((((((((!(15 == \old(a8)) || !(\old(a7) <= 0)) || !(4 < \old(a16))) || !(1 == \old(a17))) || ((((!(1 == a17) && !(1 == a21)) || (1 == a17 && 1 == a21)) && a8 <= 13) && 6 <= a16)) || ((a8 <= 13 && a16 <= 4) && ((!(1 == a20) && !(1 == a21)) || (1 == a21 && 1 == a20)))) || ((a8 <= 13 && 1 == a20) && a16 <= 4)) || !(1 == \old(a20))) || (a7 <= 0 && a21 == \old(a21))) || ((1 == a7 && 1 == a21) && ((!(1 == a20) && !(1 == a21)) || (1 == a21 && 1 == a20)))) || !(\old(a16) < 6)) || (((a8 <= 13 && 1 == a17) && a16 <= 5) && 1 == a20)) || ((1 == a7 && a16 <= 5) && 1 == a21)) || !(1 == \old(a21))) || !(8 == a12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 29.5s, OverallIterations: 12, TraceHistogramMax: 7, AutomataDifference: 17.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 806 SDtfs, 6014 SDslu, 666 SDs, 0 SdLazy, 12787 SolverSat, 1509 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3911 GetRequests, 3760 SyntacticMatches, 12 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3471occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 1980 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 192 PreInvPairs, 238 NumberOfFragments, 808 HoareAnnotationTreeSize, 192 FomulaSimplifications, 11028 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 26539 FormulaSimplificationTreeSizeReductionInter, 4.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 2301 NumberOfCodeBlocks, 1704 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 3823 ConstructedInterpolants, 0 QuantifiedInterpolants, 3905995 SizeOfPredicates, 70 NumberOfNonLiveVariables, 5550 ConjunctsInSsa, 238 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 3486/3575 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...