/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:11:30,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:11:30,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:11:30,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:11:30,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:11:30,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:11:30,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:11:30,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:11:30,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:11:30,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:11:30,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:11:30,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:11:30,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:11:30,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:11:30,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:11:30,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:11:30,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:11:30,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:11:30,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:11:30,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:11:30,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:11:30,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:11:30,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:11:30,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:11:30,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 14:11:30,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:11:30,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:11:30,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:11:30,504 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 14:11:30,544 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:11:30,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:11:30,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:11:30,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:11:30,547 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:11:30,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:11:30,547 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:11:30,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:11:30,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:11:30,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:11:30,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:11:30,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:11:30,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:11:30,548 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:11:30,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:11:30,549 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:11:30,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:11:30,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:11:30,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:11:30,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:11:30,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:11:30,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:11:30,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:11:30,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:11:30,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:11:30,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:11:30,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:30,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:11:30,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:11:30,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 14:11:30,871 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:11:30,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:11:30,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:11:30,896 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:11:30,899 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:11:30,900 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label24.c [2020-07-20 14:11:30,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f693225e/168d7cecd8f64e998e4d864dc70f7258/FLAG6a5c08dba [2020-07-20 14:11:31,611 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:11:31,613 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label24.c [2020-07-20 14:11:31,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f693225e/168d7cecd8f64e998e4d864dc70f7258/FLAG6a5c08dba [2020-07-20 14:11:31,844 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f693225e/168d7cecd8f64e998e4d864dc70f7258 [2020-07-20 14:11:31,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:11:31,856 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:11:31,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:11:31,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:11:31,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:11:31,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:11:31" (1/1) ... [2020-07-20 14:11:31,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28ed24b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:31, skipping insertion in model container [2020-07-20 14:11:31,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:11:31" (1/1) ... [2020-07-20 14:11:31,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:11:31,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:11:32,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:11:32,517 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:11:32,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:11:32,655 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:11:32,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:32 WrapperNode [2020-07-20 14:11:32,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:11:32,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:11:32,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:11:32,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:11:32,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:32" (1/1) ... [2020-07-20 14:11:32,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:32" (1/1) ... [2020-07-20 14:11:32,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:32" (1/1) ... [2020-07-20 14:11:32,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:32" (1/1) ... [2020-07-20 14:11:32,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:32" (1/1) ... [2020-07-20 14:11:32,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:32" (1/1) ... [2020-07-20 14:11:32,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:32" (1/1) ... [2020-07-20 14:11:32,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:11:32,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:11:32,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:11:32,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:11:32,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:11:32,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:11:32,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:11:32,879 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:11:32,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:11:32,880 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:11:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:11:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:11:32,882 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:11:32,882 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:11:32,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:11:32,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:11:34,538 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:11:34,539 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:11:34,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:11:34 BoogieIcfgContainer [2020-07-20 14:11:34,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:11:34,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:11:34,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:11:34,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:11:34,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:11:31" (1/3) ... [2020-07-20 14:11:34,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e0c660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:11:34, skipping insertion in model container [2020-07-20 14:11:34,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:32" (2/3) ... [2020-07-20 14:11:34,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e0c660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:11:34, skipping insertion in model container [2020-07-20 14:11:34,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:11:34" (3/3) ... [2020-07-20 14:11:34,556 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label24.c [2020-07-20 14:11:34,569 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:11:34,579 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:11:34,595 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:11:34,625 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:11:34,625 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:11:34,625 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:11:34,626 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:11:34,626 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:11:34,626 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:11:34,626 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:11:34,627 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:11:34,652 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-07-20 14:11:34,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 14:11:34,661 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:34,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:11:34,663 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:34,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:34,670 INFO L82 PathProgramCache]: Analyzing trace with hash 2116109586, now seen corresponding path program 1 times [2020-07-20 14:11:34,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:34,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581520074] [2020-07-20 14:11:34,680 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 [2020-07-20 14:11:34,809 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:34,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:34,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:11:34,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:34,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:11:34,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:11:34,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581520074] [2020-07-20 14:11:34,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:11:34,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:11:34,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048411362] [2020-07-20 14:11:34,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:11:34,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:34,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:11:34,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:11:34,946 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2020-07-20 14:11:36,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:36,338 INFO L93 Difference]: Finished difference Result 688 states and 1223 transitions. [2020-07-20 14:11:36,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:11:36,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-20 14:11:36,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:36,360 INFO L225 Difference]: With dead ends: 688 [2020-07-20 14:11:36,361 INFO L226 Difference]: Without dead ends: 372 [2020-07-20 14:11:36,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:11:36,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-07-20 14:11:36,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2020-07-20 14:11:36,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-07-20 14:11:36,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 602 transitions. [2020-07-20 14:11:36,461 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 602 transitions. Word has length 47 [2020-07-20 14:11:36,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:36,462 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 602 transitions. [2020-07-20 14:11:36,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:11:36,462 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 602 transitions. [2020-07-20 14:11:36,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-20 14:11:36,468 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:36,468 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:11:36,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:36,684 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:36,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:36,685 INFO L82 PathProgramCache]: Analyzing trace with hash 13726601, now seen corresponding path program 1 times [2020-07-20 14:11:36,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:36,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118558565] [2020-07-20 14:11:36,686 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 [2020-07-20 14:11:36,809 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:36,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:36,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:11:36,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:36,870 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:11:36,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:11:36,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2118558565] [2020-07-20 14:11:36,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:11:36,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:11:36,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467601121] [2020-07-20 14:11:36,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:11:36,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:36,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:11:36,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:11:36,874 INFO L87 Difference]: Start difference. First operand 372 states and 602 transitions. Second operand 5 states. [2020-07-20 14:11:38,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:38,461 INFO L93 Difference]: Finished difference Result 940 states and 1534 transitions. [2020-07-20 14:11:38,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:11:38,462 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2020-07-20 14:11:38,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:38,469 INFO L225 Difference]: With dead ends: 940 [2020-07-20 14:11:38,469 INFO L226 Difference]: Without dead ends: 574 [2020-07-20 14:11:38,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:11:38,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-07-20 14:11:38,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 562. [2020-07-20 14:11:38,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-07-20 14:11:38,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 827 transitions. [2020-07-20 14:11:38,526 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 827 transitions. Word has length 116 [2020-07-20 14:11:38,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:38,527 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 827 transitions. [2020-07-20 14:11:38,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:11:38,527 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 827 transitions. [2020-07-20 14:11:38,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-20 14:11:38,530 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:38,531 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:11:38,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:38,732 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:38,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:38,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1786227410, now seen corresponding path program 1 times [2020-07-20 14:11:38,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:38,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421484064] [2020-07-20 14:11:38,735 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 [2020-07-20 14:11:38,816 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:38,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:38,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:11:38,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:38,870 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:11:38,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:11:38,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421484064] [2020-07-20 14:11:38,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:11:38,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:11:38,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275279253] [2020-07-20 14:11:38,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:11:38,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:38,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:11:38,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:11:38,873 INFO L87 Difference]: Start difference. First operand 562 states and 827 transitions. Second operand 5 states. [2020-07-20 14:11:40,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:40,402 INFO L93 Difference]: Finished difference Result 1702 states and 2578 transitions. [2020-07-20 14:11:40,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:11:40,403 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2020-07-20 14:11:40,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:40,412 INFO L225 Difference]: With dead ends: 1702 [2020-07-20 14:11:40,413 INFO L226 Difference]: Without dead ends: 1146 [2020-07-20 14:11:40,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:11:40,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2020-07-20 14:11:40,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 1128. [2020-07-20 14:11:40,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2020-07-20 14:11:40,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1574 transitions. [2020-07-20 14:11:40,500 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1574 transitions. Word has length 117 [2020-07-20 14:11:40,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:40,501 INFO L479 AbstractCegarLoop]: Abstraction has 1128 states and 1574 transitions. [2020-07-20 14:11:40,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:11:40,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1574 transitions. [2020-07-20 14:11:40,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-20 14:11:40,504 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:40,504 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:11:40,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:40,720 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:40,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:40,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1793655022, now seen corresponding path program 1 times [2020-07-20 14:11:40,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:40,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629748532] [2020-07-20 14:11:40,722 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 [2020-07-20 14:11:40,808 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:40,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:40,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:11:40,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:40,859 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:11:40,860 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:11:40,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629748532] [2020-07-20 14:11:40,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:11:40,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:11:40,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686821866] [2020-07-20 14:11:40,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:11:40,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:40,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:11:40,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:11:40,864 INFO L87 Difference]: Start difference. First operand 1128 states and 1574 transitions. Second operand 5 states. [2020-07-20 14:11:42,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:42,336 INFO L93 Difference]: Finished difference Result 2854 states and 4014 transitions. [2020-07-20 14:11:42,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:11:42,341 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2020-07-20 14:11:42,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:42,360 INFO L225 Difference]: With dead ends: 2854 [2020-07-20 14:11:42,361 INFO L226 Difference]: Without dead ends: 1732 [2020-07-20 14:11:42,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:11:42,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2020-07-20 14:11:42,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1690. [2020-07-20 14:11:42,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1690 states. [2020-07-20 14:11:42,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2243 transitions. [2020-07-20 14:11:42,460 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2243 transitions. Word has length 119 [2020-07-20 14:11:42,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:42,461 INFO L479 AbstractCegarLoop]: Abstraction has 1690 states and 2243 transitions. [2020-07-20 14:11:42,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:11:42,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2243 transitions. [2020-07-20 14:11:42,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-20 14:11:42,469 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:42,469 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:11:42,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:42,684 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:42,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:42,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1028566563, now seen corresponding path program 1 times [2020-07-20 14:11:42,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:42,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257161904] [2020-07-20 14:11:42,687 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 [2020-07-20 14:11:42,795 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:42,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:42,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:11:42,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:42,851 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:11:42,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:11:42,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257161904] [2020-07-20 14:11:42,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:11:42,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:11:42,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175227742] [2020-07-20 14:11:42,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:11:42,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:42,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:11:42,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:11:42,855 INFO L87 Difference]: Start difference. First operand 1690 states and 2243 transitions. Second operand 3 states. [2020-07-20 14:11:43,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:43,847 INFO L93 Difference]: Finished difference Result 2614 states and 3438 transitions. [2020-07-20 14:11:43,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:11:43,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-20 14:11:43,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:43,873 INFO L225 Difference]: With dead ends: 2614 [2020-07-20 14:11:43,874 INFO L226 Difference]: Without dead ends: 2612 [2020-07-20 14:11:43,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:11:43,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2612 states. [2020-07-20 14:11:43,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2612 to 1880. [2020-07-20 14:11:43,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1880 states. [2020-07-20 14:11:43,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 2490 transitions. [2020-07-20 14:11:43,956 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 2490 transitions. Word has length 142 [2020-07-20 14:11:43,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:43,959 INFO L479 AbstractCegarLoop]: Abstraction has 1880 states and 2490 transitions. [2020-07-20 14:11:43,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:11:43,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 2490 transitions. [2020-07-20 14:11:43,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-07-20 14:11:43,969 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:43,969 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:11:44,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:44,170 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:44,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:44,171 INFO L82 PathProgramCache]: Analyzing trace with hash 683468094, now seen corresponding path program 1 times [2020-07-20 14:11:44,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:44,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585773792] [2020-07-20 14:11:44,172 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 [2020-07-20 14:11:44,274 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:44,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:44,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:11:44,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:44,332 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-20 14:11:44,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:11:44,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585773792] [2020-07-20 14:11:44,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:11:44,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:11:44,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737747335] [2020-07-20 14:11:44,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:11:44,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:44,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:11:44,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:11:44,336 INFO L87 Difference]: Start difference. First operand 1880 states and 2490 transitions. Second operand 3 states. [2020-07-20 14:11:45,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:45,317 INFO L93 Difference]: Finished difference Result 4490 states and 5939 transitions. [2020-07-20 14:11:45,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:11:45,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2020-07-20 14:11:45,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:45,339 INFO L225 Difference]: With dead ends: 4490 [2020-07-20 14:11:45,340 INFO L226 Difference]: Without dead ends: 2616 [2020-07-20 14:11:45,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:11:45,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2020-07-20 14:11:45,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 2250. [2020-07-20 14:11:45,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2250 states. [2020-07-20 14:11:45,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2250 states to 2250 states and 2873 transitions. [2020-07-20 14:11:45,418 INFO L78 Accepts]: Start accepts. Automaton has 2250 states and 2873 transitions. Word has length 203 [2020-07-20 14:11:45,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:45,419 INFO L479 AbstractCegarLoop]: Abstraction has 2250 states and 2873 transitions. [2020-07-20 14:11:45,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:11:45,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2250 states and 2873 transitions. [2020-07-20 14:11:45,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-07-20 14:11:45,425 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:45,426 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:11:45,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:45,640 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:45,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:45,641 INFO L82 PathProgramCache]: Analyzing trace with hash 511372486, now seen corresponding path program 1 times [2020-07-20 14:11:45,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:45,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720181633] [2020-07-20 14:11:45,643 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 [2020-07-20 14:11:45,761 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:45,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:45,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 14:11:45,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:45,818 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 14:11:45,818 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:11:45,820 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:11:45,837 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:11:45,929 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-20 14:11:45,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:11:45,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720181633] [2020-07-20 14:11:45,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:11:45,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:11:45,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057557371] [2020-07-20 14:11:45,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:11:45,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:45,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:11:45,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:11:45,933 INFO L87 Difference]: Start difference. First operand 2250 states and 2873 transitions. Second operand 5 states. [2020-07-20 14:11:47,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:47,387 INFO L93 Difference]: Finished difference Result 5086 states and 6441 transitions. [2020-07-20 14:11:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:11:47,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 233 [2020-07-20 14:11:47,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:47,408 INFO L225 Difference]: With dead ends: 5086 [2020-07-20 14:11:47,408 INFO L226 Difference]: Without dead ends: 2658 [2020-07-20 14:11:47,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:11:47,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2020-07-20 14:11:47,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2066. [2020-07-20 14:11:47,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2066 states. [2020-07-20 14:11:47,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 2616 transitions. [2020-07-20 14:11:47,486 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 2616 transitions. Word has length 233 [2020-07-20 14:11:47,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:47,487 INFO L479 AbstractCegarLoop]: Abstraction has 2066 states and 2616 transitions. [2020-07-20 14:11:47,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:11:47,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 2616 transitions. [2020-07-20 14:11:47,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-07-20 14:11:47,495 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:47,495 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:11:47,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:47,711 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:47,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:47,711 INFO L82 PathProgramCache]: Analyzing trace with hash -266552290, now seen corresponding path program 1 times [2020-07-20 14:11:47,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:47,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352851348] [2020-07-20 14:11:47,712 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 [2020-07-20 14:11:47,865 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:47,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:47,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 14:11:47,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:47,937 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 14:11:47,938 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:11:47,940 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:11:47,963 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:11:48,142 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 309 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-20 14:11:48,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:11:48,338 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-20 14:11:48,339 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:48,342 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-20 14:11:48,343 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:48,347 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:11:48,348 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:48,350 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:48,354 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:11:48,375 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:48,376 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:11:48,466 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:48,467 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:48,507 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:48,876 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 125 proven. 223 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 14:11:48,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352851348] [2020-07-20 14:11:48,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:11:48,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2020-07-20 14:11:48,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130008310] [2020-07-20 14:11:48,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-20 14:11:48,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:48,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-20 14:11:48,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-07-20 14:11:48,880 INFO L87 Difference]: Start difference. First operand 2066 states and 2616 transitions. Second operand 13 states. [2020-07-20 14:11:52,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:52,966 INFO L93 Difference]: Finished difference Result 5640 states and 7378 transitions. [2020-07-20 14:11:52,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-20 14:11:52,967 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 317 [2020-07-20 14:11:52,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:52,982 INFO L225 Difference]: With dead ends: 5640 [2020-07-20 14:11:52,982 INFO L226 Difference]: Without dead ends: 3550 [2020-07-20 14:11:52,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 632 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2020-07-20 14:11:52,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3550 states. [2020-07-20 14:11:53,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3550 to 2810. [2020-07-20 14:11:53,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2810 states. [2020-07-20 14:11:53,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 3127 transitions. [2020-07-20 14:11:53,066 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 3127 transitions. Word has length 317 [2020-07-20 14:11:53,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:53,067 INFO L479 AbstractCegarLoop]: Abstraction has 2810 states and 3127 transitions. [2020-07-20 14:11:53,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-20 14:11:53,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 3127 transitions. [2020-07-20 14:11:53,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2020-07-20 14:11:53,084 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:53,084 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:11:53,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:53,298 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:53,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:53,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1929187522, now seen corresponding path program 1 times [2020-07-20 14:11:53,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:53,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464503212] [2020-07-20 14:11:53,300 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 [2020-07-20 14:11:53,599 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:53,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:53,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 14:11:53,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:53,648 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 14:11:53,649 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:11:53,650 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 1] term [2020-07-20 14:11:53,650 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:11:53,671 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:11:53,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 790 proven. 2 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2020-07-20 14:11:53,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:11:54,074 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2020-07-20 14:11:54,121 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-20 14:11:54,122 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:54,124 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:54,124 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:54,126 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[5, 2, 1] term [2020-07-20 14:11:54,126 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:11:54,127 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 2, 1] term [2020-07-20 14:11:54,127 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:54,156 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:11:54,157 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:54,159 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:11:54,160 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-20 14:11:54,161 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:11:54,279 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:54,286 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:54,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 547 proven. 74 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2020-07-20 14:11:54,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464503212] [2020-07-20 14:11:54,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:11:54,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:11:54,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722795377] [2020-07-20 14:11:54,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:11:54,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:54,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:11:54,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:11:54,879 INFO L87 Difference]: Start difference. First operand 2810 states and 3127 transitions. Second operand 7 states. [2020-07-20 14:11:56,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:56,973 INFO L93 Difference]: Finished difference Result 6726 states and 7564 transitions. [2020-07-20 14:11:56,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-20 14:11:56,974 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 585 [2020-07-20 14:11:56,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:56,993 INFO L225 Difference]: With dead ends: 6726 [2020-07-20 14:11:56,994 INFO L226 Difference]: Without dead ends: 3920 [2020-07-20 14:11:57,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1183 GetRequests, 1170 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-07-20 14:11:57,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2020-07-20 14:11:57,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3358. [2020-07-20 14:11:57,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3358 states. [2020-07-20 14:11:57,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3358 states to 3358 states and 3701 transitions. [2020-07-20 14:11:57,092 INFO L78 Accepts]: Start accepts. Automaton has 3358 states and 3701 transitions. Word has length 585 [2020-07-20 14:11:57,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:57,094 INFO L479 AbstractCegarLoop]: Abstraction has 3358 states and 3701 transitions. [2020-07-20 14:11:57,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:11:57,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3358 states and 3701 transitions. [2020-07-20 14:11:57,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2020-07-20 14:11:57,126 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:57,126 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:11:57,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:57,341 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:57,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:57,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1611163502, now seen corresponding path program 1 times [2020-07-20 14:11:57,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:57,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430539550] [2020-07-20 14:11:57,342 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 [2020-07-20 14:11:57,697 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:57,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:57,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 14:11:57,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:57,724 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:11:57,725 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:11:57,824 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 14:11:57,825 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:11:57,826 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:11:57,846 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:11:57,847 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:11:58,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 790 proven. 2 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2020-07-20 14:11:58,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:11:58,327 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2020-07-20 14:11:58,366 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-20 14:11:58,367 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:58,368 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-20 14:11:58,369 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:58,370 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:11:58,370 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:58,371 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:58,372 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:11:58,401 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:58,402 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:11:58,516 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:58,518 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:58,519 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:11:58,530 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:58,532 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:11:58,533 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:11:59,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 547 proven. 74 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2020-07-20 14:11:59,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430539550] [2020-07-20 14:11:59,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:11:59,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:11:59,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846902475] [2020-07-20 14:11:59,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:11:59,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:59,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:11:59,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:11:59,169 INFO L87 Difference]: Start difference. First operand 3358 states and 3701 transitions. Second operand 7 states. [2020-07-20 14:12:01,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:12:01,903 INFO L93 Difference]: Finished difference Result 7446 states and 8363 transitions. [2020-07-20 14:12:01,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 14:12:01,904 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 625 [2020-07-20 14:12:01,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:12:01,923 INFO L225 Difference]: With dead ends: 7446 [2020-07-20 14:12:01,924 INFO L226 Difference]: Without dead ends: 4276 [2020-07-20 14:12:01,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1257 GetRequests, 1246 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-07-20 14:12:01,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2020-07-20 14:12:02,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 3728. [2020-07-20 14:12:02,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3728 states. [2020-07-20 14:12:02,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3728 states to 3728 states and 4125 transitions. [2020-07-20 14:12:02,019 INFO L78 Accepts]: Start accepts. Automaton has 3728 states and 4125 transitions. Word has length 625 [2020-07-20 14:12:02,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:12:02,020 INFO L479 AbstractCegarLoop]: Abstraction has 3728 states and 4125 transitions. [2020-07-20 14:12:02,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:12:02,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3728 states and 4125 transitions. [2020-07-20 14:12:02,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2020-07-20 14:12:02,038 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:12:02,039 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:12:02,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:12:02,256 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:12:02,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:12:02,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1977185226, now seen corresponding path program 1 times [2020-07-20 14:12:02,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:12:02,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619092423] [2020-07-20 14:12:02,257 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 [2020-07-20 14:12:02,562 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:12:02,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:12:02,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 14:12:02,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:12:02,621 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 14:12:02,622 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:12:02,623 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 1] term [2020-07-20 14:12:02,623 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:12:02,641 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:12:02,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 979 proven. 2 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2020-07-20 14:12:02,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:12:03,092 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2020-07-20 14:12:03,149 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-20 14:12:03,150 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:03,151 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:03,151 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:03,152 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:03,153 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:03,153 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:03,154 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:12:03,154 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:12:03,155 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:12:03,156 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:03,156 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 14:12:03,157 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:12:03,157 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:12:03,158 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:03,159 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:03,159 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:12:03,177 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:12:03,179 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:03,195 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:03,196 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:03,197 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:03,198 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-20 14:12:03,198 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:03,285 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:03,289 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:04,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 667 proven. 74 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2020-07-20 14:12:04,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619092423] [2020-07-20 14:12:04,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:12:04,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:12:04,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816795508] [2020-07-20 14:12:04,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:12:04,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:12:04,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:12:04,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:12:04,112 INFO L87 Difference]: Start difference. First operand 3728 states and 4125 transitions. Second operand 7 states. [2020-07-20 14:12:06,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:12:06,230 INFO L93 Difference]: Finished difference Result 7996 states and 8936 transitions. [2020-07-20 14:12:06,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 14:12:06,231 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 687 [2020-07-20 14:12:06,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:12:06,247 INFO L225 Difference]: With dead ends: 7996 [2020-07-20 14:12:06,248 INFO L226 Difference]: Without dead ends: 4454 [2020-07-20 14:12:06,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1381 GetRequests, 1371 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-20 14:12:06,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-07-20 14:12:06,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4272. [2020-07-20 14:12:06,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4272 states. [2020-07-20 14:12:06,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4272 states to 4272 states and 4730 transitions. [2020-07-20 14:12:06,350 INFO L78 Accepts]: Start accepts. Automaton has 4272 states and 4730 transitions. Word has length 687 [2020-07-20 14:12:06,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:12:06,351 INFO L479 AbstractCegarLoop]: Abstraction has 4272 states and 4730 transitions. [2020-07-20 14:12:06,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:12:06,351 INFO L276 IsEmpty]: Start isEmpty. Operand 4272 states and 4730 transitions. [2020-07-20 14:12:06,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2020-07-20 14:12:06,360 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:12:06,361 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 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] [2020-07-20 14:12:06,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:12:06,575 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:12:06,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:12:06,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1248418757, now seen corresponding path program 1 times [2020-07-20 14:12:06,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:12:06,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117792899] [2020-07-20 14:12:06,577 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 [2020-07-20 14:12:06,920 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:12:06,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:12:06,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:12:06,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:12:07,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 1098 proven. 2 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2020-07-20 14:12:07,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:12:08,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 496 proven. 148 refuted. 0 times theorem prover too weak. 934 trivial. 0 not checked. [2020-07-20 14:12:08,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117792899] [2020-07-20 14:12:08,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:12:08,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:12:08,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865219038] [2020-07-20 14:12:08,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:12:08,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:12:08,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:12:08,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:12:08,091 INFO L87 Difference]: Start difference. First operand 4272 states and 4730 transitions. Second operand 6 states. [2020-07-20 14:12:09,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:12:09,248 INFO L93 Difference]: Finished difference Result 8902 states and 9885 transitions. [2020-07-20 14:12:09,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:12:09,253 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 712 [2020-07-20 14:12:09,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:12:09,269 INFO L225 Difference]: With dead ends: 8902 [2020-07-20 14:12:09,270 INFO L226 Difference]: Without dead ends: 5002 [2020-07-20 14:12:09,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1429 GetRequests, 1420 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:12:09,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5002 states. [2020-07-20 14:12:09,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5002 to 4820. [2020-07-20 14:12:09,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4820 states. [2020-07-20 14:12:09,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4820 states to 4820 states and 5280 transitions. [2020-07-20 14:12:09,367 INFO L78 Accepts]: Start accepts. Automaton has 4820 states and 5280 transitions. Word has length 712 [2020-07-20 14:12:09,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:12:09,368 INFO L479 AbstractCegarLoop]: Abstraction has 4820 states and 5280 transitions. [2020-07-20 14:12:09,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:12:09,368 INFO L276 IsEmpty]: Start isEmpty. Operand 4820 states and 5280 transitions. [2020-07-20 14:12:09,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2020-07-20 14:12:09,378 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:12:09,379 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:12:09,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:12:09,584 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:12:09,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:12:09,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1953093901, now seen corresponding path program 1 times [2020-07-20 14:12:09,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:12:09,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595180454] [2020-07-20 14:12:09,595 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:12:09,939 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:12:09,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:12:09,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 14:12:09,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:12:09,968 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:12:09,975 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 14:12:10,129 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:12:10,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1638 backedges. 1017 proven. 6 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2020-07-20 14:12:10,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:12:10,589 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 1] term [2020-07-20 14:12:10,590 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-20 14:12:10,786 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:10,787 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:10,789 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:12:10,806 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:10,807 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:10,809 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:12:11,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1638 backedges. 1017 proven. 74 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2020-07-20 14:12:11,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595180454] [2020-07-20 14:12:11,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:12:11,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2020-07-20 14:12:11,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595300827] [2020-07-20 14:12:11,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 14:12:11,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:12:11,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 14:12:11,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-07-20 14:12:11,292 INFO L87 Difference]: Start difference. First operand 4820 states and 5280 transitions. Second operand 12 states. [2020-07-20 14:12:16,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:12:16,590 INFO L93 Difference]: Finished difference Result 10186 states and 11229 transitions. [2020-07-20 14:12:16,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-20 14:12:16,591 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 772 [2020-07-20 14:12:16,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:12:16,608 INFO L225 Difference]: With dead ends: 10186 [2020-07-20 14:12:16,608 INFO L226 Difference]: Without dead ends: 5738 [2020-07-20 14:12:16,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1565 GetRequests, 1543 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=176, Invalid=330, Unknown=0, NotChecked=0, Total=506 [2020-07-20 14:12:16,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5738 states. [2020-07-20 14:12:16,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5738 to 4826. [2020-07-20 14:12:16,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4826 states. [2020-07-20 14:12:16,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4826 states to 4826 states and 5216 transitions. [2020-07-20 14:12:16,713 INFO L78 Accepts]: Start accepts. Automaton has 4826 states and 5216 transitions. Word has length 772 [2020-07-20 14:12:16,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:12:16,714 INFO L479 AbstractCegarLoop]: Abstraction has 4826 states and 5216 transitions. [2020-07-20 14:12:16,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 14:12:16,715 INFO L276 IsEmpty]: Start isEmpty. Operand 4826 states and 5216 transitions. [2020-07-20 14:12:16,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1017 [2020-07-20 14:12:16,733 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:12:16,734 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:12:16,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:12:16,948 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:12:16,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:12:16,949 INFO L82 PathProgramCache]: Analyzing trace with hash -676551131, now seen corresponding path program 1 times [2020-07-20 14:12:16,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:12:16,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561079956] [2020-07-20 14:12:16,950 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:12:17,363 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:12:17,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:12:17,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-20 14:12:17,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:12:17,392 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:12:17,393 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 14:12:17,599 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2020-07-20 14:12:17,599 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 14:12:17,600 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 14:12:17,644 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:12:18,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2673 backedges. 2079 proven. 6 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2020-07-20 14:12:18,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:12:18,440 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:18,441 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-20 14:12:18,442 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:18,442 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-20 14:12:18,480 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:18,481 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:18,624 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:18,625 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:18,677 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:18,678 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:18,753 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:18,754 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:18,756 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:12:18,769 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:18,770 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:18,772 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:12:20,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2673 backedges. 1212 proven. 456 refuted. 0 times theorem prover too weak. 1005 trivial. 0 not checked. [2020-07-20 14:12:20,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561079956] [2020-07-20 14:12:20,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:12:20,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2020-07-20 14:12:20,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398292311] [2020-07-20 14:12:20,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-20 14:12:20,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:12:20,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-20 14:12:20,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-07-20 14:12:20,419 INFO L87 Difference]: Start difference. First operand 4826 states and 5216 transitions. Second operand 13 states. [2020-07-20 14:12:27,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:12:27,419 INFO L93 Difference]: Finished difference Result 9844 states and 10730 transitions. [2020-07-20 14:12:27,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-20 14:12:27,421 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1016 [2020-07-20 14:12:27,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:12:27,439 INFO L225 Difference]: With dead ends: 9844 [2020-07-20 14:12:27,439 INFO L226 Difference]: Without dead ends: 5390 [2020-07-20 14:12:27,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2067 GetRequests, 2037 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=298, Invalid=632, Unknown=0, NotChecked=0, Total=930 [2020-07-20 14:12:27,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5390 states. [2020-07-20 14:12:27,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5390 to 5374. [2020-07-20 14:12:27,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5374 states. [2020-07-20 14:12:27,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5374 states to 5374 states and 5782 transitions. [2020-07-20 14:12:27,560 INFO L78 Accepts]: Start accepts. Automaton has 5374 states and 5782 transitions. Word has length 1016 [2020-07-20 14:12:27,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:12:27,561 INFO L479 AbstractCegarLoop]: Abstraction has 5374 states and 5782 transitions. [2020-07-20 14:12:27,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-20 14:12:27,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5374 states and 5782 transitions. [2020-07-20 14:12:27,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1135 [2020-07-20 14:12:27,584 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:12:27,585 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:12:27,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:12:27,799 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:12:27,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:12:27,799 INFO L82 PathProgramCache]: Analyzing trace with hash -273292447, now seen corresponding path program 1 times [2020-07-20 14:12:27,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:12:27,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16475829] [2020-07-20 14:12:27,800 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:12:28,250 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:12:28,250 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:12:28,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 1546 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 14:12:28,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:12:28,856 INFO L134 CoverageAnalysis]: Checked inductivity of 3480 backedges. 2051 proven. 2 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2020-07-20 14:12:28,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:12:29,023 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:12:29,024 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:29,025 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:12:30,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3480 backedges. 580 proven. 680 refuted. 0 times theorem prover too weak. 2220 trivial. 0 not checked. [2020-07-20 14:12:30,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16475829] [2020-07-20 14:12:30,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:12:30,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:12:30,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535416729] [2020-07-20 14:12:30,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:12:30,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:12:30,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:12:30,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:12:30,129 INFO L87 Difference]: Start difference. First operand 5374 states and 5782 transitions. Second operand 7 states. [2020-07-20 14:12:31,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:12:31,795 INFO L93 Difference]: Finished difference Result 10566 states and 11383 transitions. [2020-07-20 14:12:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 14:12:31,796 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1134 [2020-07-20 14:12:31,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:12:31,811 INFO L225 Difference]: With dead ends: 10566 [2020-07-20 14:12:31,811 INFO L226 Difference]: Without dead ends: 5564 [2020-07-20 14:12:31,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2276 GetRequests, 2266 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-20 14:12:31,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5564 states. [2020-07-20 14:12:31,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5564 to 5562. [2020-07-20 14:12:31,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5562 states. [2020-07-20 14:12:31,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5562 states to 5562 states and 5932 transitions. [2020-07-20 14:12:31,939 INFO L78 Accepts]: Start accepts. Automaton has 5562 states and 5932 transitions. Word has length 1134 [2020-07-20 14:12:31,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:12:31,940 INFO L479 AbstractCegarLoop]: Abstraction has 5562 states and 5932 transitions. [2020-07-20 14:12:31,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:12:31,942 INFO L276 IsEmpty]: Start isEmpty. Operand 5562 states and 5932 transitions. [2020-07-20 14:12:31,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1234 [2020-07-20 14:12:31,968 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:12:31,969 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 14:12:32,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:12:32,185 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:12:32,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:12:32,186 INFO L82 PathProgramCache]: Analyzing trace with hash -315484378, now seen corresponding path program 1 times [2020-07-20 14:12:32,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:12:32,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262671408] [2020-07-20 14:12:32,188 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:12:32,826 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:12:32,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:12:32,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 1685 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:12:32,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:12:33,460 INFO L134 CoverageAnalysis]: Checked inductivity of 4364 backedges. 2731 proven. 2 refuted. 0 times theorem prover too weak. 1631 trivial. 0 not checked. [2020-07-20 14:12:33,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:12:34,188 INFO L134 CoverageAnalysis]: Checked inductivity of 4364 backedges. 735 proven. 298 refuted. 0 times theorem prover too weak. 3331 trivial. 0 not checked. [2020-07-20 14:12:34,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262671408] [2020-07-20 14:12:34,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:12:34,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:12:34,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784359874] [2020-07-20 14:12:34,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:12:34,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:12:34,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:12:34,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:12:34,190 INFO L87 Difference]: Start difference. First operand 5562 states and 5932 transitions. Second operand 6 states. [2020-07-20 14:12:35,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:12:35,476 INFO L93 Difference]: Finished difference Result 11304 states and 12135 transitions. [2020-07-20 14:12:35,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:12:35,477 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1233 [2020-07-20 14:12:35,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:12:35,500 INFO L225 Difference]: With dead ends: 11304 [2020-07-20 14:12:35,500 INFO L226 Difference]: Without dead ends: 6114 [2020-07-20 14:12:35,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2471 GetRequests, 2462 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:12:35,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6114 states. [2020-07-20 14:12:35,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6114 to 6114. [2020-07-20 14:12:35,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6114 states. [2020-07-20 14:12:35,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6114 states to 6114 states and 6508 transitions. [2020-07-20 14:12:35,621 INFO L78 Accepts]: Start accepts. Automaton has 6114 states and 6508 transitions. Word has length 1233 [2020-07-20 14:12:35,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:12:35,622 INFO L479 AbstractCegarLoop]: Abstraction has 6114 states and 6508 transitions. [2020-07-20 14:12:35,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:12:35,622 INFO L276 IsEmpty]: Start isEmpty. Operand 6114 states and 6508 transitions. [2020-07-20 14:12:35,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1515 [2020-07-20 14:12:35,653 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:12:35,655 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:12:35,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:12:35,869 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:12:35,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:12:35,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1398103861, now seen corresponding path program 1 times [2020-07-20 14:12:35,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:12:35,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963852925] [2020-07-20 14:12:35,870 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:12:36,566 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:12:36,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:12:36,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 2039 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:12:36,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:12:36,602 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:12:36,603 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 14:12:36,603 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 14:12:36,605 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 14:12:36,605 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 14:12:36,606 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 14:12:36,606 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 14:12:36,607 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 14:12:36,900 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 26 [2020-07-20 14:12:38,179 INFO L134 CoverageAnalysis]: Checked inductivity of 6489 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 6019 trivial. 0 not checked. [2020-07-20 14:12:38,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:12:38,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963852925] [2020-07-20 14:12:38,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:12:38,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:12:38,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372491158] [2020-07-20 14:12:38,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:12:38,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:12:38,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:12:38,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:12:38,181 INFO L87 Difference]: Start difference. First operand 6114 states and 6508 transitions. Second operand 3 states. [2020-07-20 14:12:39,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:12:39,755 INFO L93 Difference]: Finished difference Result 13328 states and 14352 transitions. [2020-07-20 14:12:39,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:12:39,761 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1514 [2020-07-20 14:12:39,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:12:39,778 INFO L225 Difference]: With dead ends: 13328 [2020-07-20 14:12:39,779 INFO L226 Difference]: Without dead ends: 6846 [2020-07-20 14:12:39,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1513 GetRequests, 1512 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:12:39,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6846 states. [2020-07-20 14:12:39,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6846 to 6118. [2020-07-20 14:12:39,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6118 states. [2020-07-20 14:12:39,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 6516 transitions. [2020-07-20 14:12:39,918 INFO L78 Accepts]: Start accepts. Automaton has 6118 states and 6516 transitions. Word has length 1514 [2020-07-20 14:12:39,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:12:39,920 INFO L479 AbstractCegarLoop]: Abstraction has 6118 states and 6516 transitions. [2020-07-20 14:12:39,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:12:39,920 INFO L276 IsEmpty]: Start isEmpty. Operand 6118 states and 6516 transitions. [2020-07-20 14:12:39,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1524 [2020-07-20 14:12:39,957 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:12:39,958 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 14:12:40,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:12:40,172 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:12:40,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:12:40,173 INFO L82 PathProgramCache]: Analyzing trace with hash -681051210, now seen corresponding path program 1 times [2020-07-20 14:12:40,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:12:40,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398441538] [2020-07-20 14:12:40,174 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:12:40,716 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:12:40,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:12:40,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 2085 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 14:12:40,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:12:40,777 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:12:40,778 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:12:44,869 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:12:48,028 INFO L134 CoverageAnalysis]: Checked inductivity of 7113 backedges. 1281 proven. 43 refuted. 0 times theorem prover too weak. 5789 trivial. 0 not checked. [2020-07-20 14:12:48,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:12:48,069 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:48,071 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:12:48,071 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:12:48,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398441538] [2020-07-20 14:12:48,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-20 14:12:48,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-07-20 14:12:48,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955530033] [2020-07-20 14:12:48,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:12:48,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:12:48,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:12:48,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=35, Unknown=2, NotChecked=0, Total=56 [2020-07-20 14:12:48,110 INFO L87 Difference]: Start difference. First operand 6118 states and 6516 transitions. Second operand 6 states. [2020-07-20 14:12:57,250 WARN L193 SmtUtils]: Spent 8.04 s on a formula simplification. DAG size of input: 25 DAG size of output: 16 [2020-07-20 14:13:13,857 WARN L193 SmtUtils]: Spent 6.10 s on a formula simplification. DAG size of input: 32 DAG size of output: 13 [2020-07-20 14:13:23,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:13:23,677 INFO L93 Difference]: Finished difference Result 12432 states and 13263 transitions. [2020-07-20 14:13:23,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 14:13:23,684 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1523 [2020-07-20 14:13:23,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:13:23,686 INFO L225 Difference]: With dead ends: 12432 [2020-07-20 14:13:23,686 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:13:23,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1574 GetRequests, 1562 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 22.4s TimeCoverageRelationStatistics Valid=58, Invalid=95, Unknown=3, NotChecked=0, Total=156 [2020-07-20 14:13:23,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:13:23,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:13:23,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:13:23,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:13:23,700 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1523 [2020-07-20 14:13:23,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:13:23,700 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:13:23,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:13:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:13:23,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:13:23,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:13:23,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:13:25,373 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 360 DAG size of output: 332 [2020-07-20 14:13:25,749 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 360 DAG size of output: 332 [2020-07-20 14:13:25,952 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 33 [2020-07-20 14:13:32,955 WARN L193 SmtUtils]: Spent 6.97 s on a formula simplification. DAG size of input: 516 DAG size of output: 208 [2020-07-20 14:13:37,412 WARN L193 SmtUtils]: Spent 4.42 s on a formula simplification. DAG size of input: 377 DAG size of output: 144 [2020-07-20 14:13:42,057 WARN L193 SmtUtils]: Spent 4.64 s on a formula simplification. DAG size of input: 377 DAG size of output: 144 [2020-07-20 14:13:42,062 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:13:42,062 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a12~0 |old(~a12~0)|) (<= |old(~a12~0)| ~a12~0) (<= ~a24~0 |old(~a24~0)|) (<= ~a15~0 |old(~a15~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-20 14:13:42,063 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:13:42,063 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-07-20 14:13:42,063 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-07-20 14:13:42,063 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,063 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,063 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,063 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-07-20 14:13:42,064 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 14:13:42,064 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 14:13:42,064 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 14:13:42,064 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-07-20 14:13:42,064 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-07-20 14:13:42,065 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-07-20 14:13:42,065 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-07-20 14:13:42,065 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,065 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,065 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,066 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-07-20 14:13:42,066 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-07-20 14:13:42,066 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 14:13:42,066 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 14:13:42,066 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 14:13:42,066 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-07-20 14:13:42,066 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-07-20 14:13:42,066 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-07-20 14:13:42,066 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,066 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,067 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,067 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-07-20 14:13:42,067 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 14:13:42,067 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 14:13:42,067 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 14:13:42,067 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-07-20 14:13:42,067 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-07-20 14:13:42,067 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-07-20 14:13:42,067 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-07-20 14:13:42,068 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-07-20 14:13:42,068 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,068 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,068 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,068 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-07-20 14:13:42,068 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 14:13:42,068 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 14:13:42,068 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 14:13:42,068 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-07-20 14:13:42,068 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-07-20 14:13:42,069 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-07-20 14:13:42,069 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,069 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,069 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,069 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-07-20 14:13:42,069 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 14:13:42,069 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 14:13:42,069 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 14:13:42,069 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-07-20 14:13:42,070 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-07-20 14:13:42,070 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-07-20 14:13:42,070 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-07-20 14:13:42,070 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-07-20 14:13:42,070 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,070 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,070 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,070 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,070 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-07-20 14:13:42,071 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 14:13:42,071 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 14:13:42,071 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 14:13:42,071 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-07-20 14:13:42,071 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-07-20 14:13:42,071 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-07-20 14:13:42,071 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-07-20 14:13:42,071 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,072 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,072 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,072 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 14:13:42,072 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 14:13:42,072 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 14:13:42,072 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-07-20 14:13:42,072 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-07-20 14:13:42,072 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-07-20 14:13:42,072 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-07-20 14:13:42,073 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-07-20 14:13:42,073 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,073 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,073 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,073 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-07-20 14:13:42,073 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-07-20 14:13:42,073 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 14:13:42,073 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 14:13:42,073 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 14:13:42,073 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-07-20 14:13:42,074 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse15 (not (< |old(~a21~0)| 6))) (.cse1 (<= 7 ~a15~0)) (.cse31 (= ~a21~0 |old(~a21~0)|)) (.cse9 (not (<= 7 |old(~a15~0)|))) (.cse18 (not (<= 7 |old(~a21~0)|))) (.cse19 (not (<= |old(~a15~0)| 8))) (.cse28 (not (<= |old(~a21~0)| 7))) (.cse0 (<= ~a12~0 |old(~a12~0)|)) (.cse2 (<= |old(~a12~0)| ~a12~0)) (.cse3 (<= ~a24~0 |old(~a24~0)|)) (.cse4 (<= ~a21~0 |old(~a21~0)|)) (.cse5 (<= ~a15~0 |old(~a15~0)|)) (.cse32 (<= 7 ~a21~0)) (.cse6 (<= |old(~a21~0)| ~a21~0))) (let ((.cse20 (not (<= |old(~a21~0)| 8))) (.cse21 (and .cse0 (< ~a12~0 81) .cse2 .cse3 .cse4 .cse5 (<= ~a15~0 8) .cse32 .cse6)) (.cse12 (and (or .cse9 .cse19 .cse28) (or .cse18 .cse19 .cse28))) (.cse16 (and .cse2 .cse3 .cse5 (or (and .cse0 .cse1) .cse32) .cse31)) (.cse17 (not (< |old(~a12~0)| 81))) (.cse23 (and .cse0 .cse2 .cse3 .cse5 .cse31)) (.cse13 (and (not (< |old(~a24~0)| 2)) .cse15)) (.cse7 (not (<= |old(~a24~0)| 1))) (.cse14 (not (<= |old(~a12~0)| 11))) (.cse27 (not (<= 10 |old(~a21~0)|))) (.cse24 (not (<= (+ |old(~a12~0)| 49) 0))) (.cse29 (not (<= 19 |old(~a12~0)|))) (.cse30 (and .cse0 .cse1 .cse2 .cse3 .cse5 .cse31)) (.cse10 (not (< |old(~a12~0)| 600007))) (.cse25 (not (<= |old(~a21~0)| 6))) (.cse26 (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6)) (.cse22 (not (<= |old(~a15~0)| 5)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) .cse7 (forall ((v_~a12~0_712 Int)) (let ((.cse8 (div (+ (* v_~a12~0_712 10) 2779120) 9))) (or (not (<= v_~a12~0_712 11)) (not (<= .cse8 437300)) (not (<= 0 (+ (* 10 v_~a12~0_712) 2779120))) (not (< 0 (+ v_~a12~0_712 43))) (not (<= (div (+ (* .cse8 (- 1)) 437300) 10) |old(~a12~0)|))))) .cse9 .cse10) (or (let ((.cse11 (and .cse15 (not (< 0 (+ |old(~a12~0)| 43)))))) (and (or .cse7 .cse11 .cse12 .cse10) (or .cse13 .cse11 .cse12 .cse14))) .cse16) (or .cse7 .cse17 .cse18 .cse19 .cse20 .cse21) (or (and (not (< (+ |old(~a12~0)| 42) 0)) .cse15) .cse22 .cse14 .cse20 .cse23) (or .cse13 (not (< |old(~a12~0)| 12)) .cse18 .cse19 .cse21) (or .cse7 .cse24 .cse12 .cse16) (or .cse7 .cse25 .cse26 .cse22) (or .cse7 (and .cse0 .cse4 .cse3 .cse5 .cse6) .cse17 .cse22) (or .cse27 .cse19 .cse23 .cse10) (or .cse7 (forall ((v_prenex_2 Int)) (or (not (<= (+ (mod v_prenex_2 34) 13) |old(~a12~0)|)) (not (<= 0 v_prenex_2)) (not (<= 19 v_prenex_2)))) .cse26 (forall ((v_~a12~0_605 Int)) (or (not (<= |old(~a12~0)| (div (+ v_~a12~0_605 366333) 5))) (not (= 0 (mod (+ v_~a12~0_605 3) 5))) (not (<= v_~a12~0_605 80)) (not (< 11 v_~a12~0_605)))) .cse19 .cse28) (or .cse29 .cse13 .cse26 .cse18 .cse19 .cse10) (or .cse7 .cse18 .cse14 .cse30 .cse9) (or .cse27 .cse22 (and .cse0 .cse3 .cse4 .cse5 .cse6)) (or (and .cse0 .cse4 .cse5 .cse6) .cse24 .cse22) (or .cse29 .cse18 .cse30 .cse9 .cse10) (or (forall ((v_~a12~0_487 Int)) (or (not (< 11 v_~a12~0_487)) (not (<= (+ (* 5 (div (* v_~a12~0_487 68) 10)) 517842) |old(~a12~0)|)) (not (<= 0 (* 68 v_~a12~0_487))))) .cse25 .cse26 .cse22)))) [2020-07-20 14:13:42,074 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-07-20 14:13:42,074 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-07-20 14:13:42,074 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,075 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,075 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,075 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 14:13:42,075 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 14:13:42,075 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 14:13:42,075 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-07-20 14:13:42,075 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-07-20 14:13:42,075 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-07-20 14:13:42,076 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-07-20 14:13:42,076 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-07-20 14:13:42,076 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,076 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,076 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,076 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-07-20 14:13:42,076 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-07-20 14:13:42,076 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 14:13:42,076 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 14:13:42,077 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 14:13:42,077 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-07-20 14:13:42,077 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-07-20 14:13:42,077 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-07-20 14:13:42,077 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,077 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,077 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,077 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-07-20 14:13:42,077 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 14:13:42,078 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 14:13:42,078 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 14:13:42,078 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-07-20 14:13:42,078 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-07-20 14:13:42,078 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-07-20 14:13:42,078 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-07-20 14:13:42,078 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,078 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,079 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,079 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-07-20 14:13:42,079 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 14:13:42,079 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 14:13:42,079 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 14:13:42,079 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-07-20 14:13:42,079 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-07-20 14:13:42,079 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-07-20 14:13:42,079 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-07-20 14:13:42,080 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,080 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,080 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-07-20 14:13:42,080 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 14:13:42,080 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 14:13:42,080 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-07-20 14:13:42,080 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-07-20 14:13:42,080 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-07-20 14:13:42,080 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-07-20 14:13:42,081 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-07-20 14:13:42,081 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2020-07-20 14:13:42,081 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,081 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,081 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-07-20 14:13:42,081 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 14:13:42,081 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 14:13:42,081 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-07-20 14:13:42,082 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-07-20 14:13:42,082 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-07-20 14:13:42,082 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,082 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,082 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-07-20 14:13:42,082 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-07-20 14:13:42,082 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 14:13:42,082 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 14:13:42,082 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-07-20 14:13:42,082 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-07-20 14:13:42,083 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-07-20 14:13:42,083 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-07-20 14:13:42,083 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,083 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,083 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-07-20 14:13:42,083 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-07-20 14:13:42,083 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 14:13:42,083 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 14:13:42,083 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-07-20 14:13:42,083 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-07-20 14:13:42,084 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-07-20 14:13:42,084 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,084 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,084 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,084 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-07-20 14:13:42,084 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-07-20 14:13:42,084 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 14:13:42,084 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 14:13:42,084 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-07-20 14:13:42,084 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-07-20 14:13:42,085 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,085 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,085 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 14:13:42,085 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,085 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-07-20 14:13:42,085 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-07-20 14:13:42,085 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-07-20 14:13:42,085 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 14:13:42,085 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 14:13:42,085 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 14:13:42,086 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-07-20 14:13:42,086 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-07-20 14:13:42,086 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-07-20 14:13:42,086 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-07-20 14:13:42,086 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,086 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,086 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,086 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-07-20 14:13:42,086 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 14:13:42,086 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 14:13:42,087 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 14:13:42,087 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-07-20 14:13:42,087 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-07-20 14:13:42,087 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-07-20 14:13:42,087 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-07-20 14:13:42,087 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,087 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,087 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,087 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-07-20 14:13:42,087 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-07-20 14:13:42,088 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 14:13:42,088 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 14:13:42,088 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 14:13:42,088 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-07-20 14:13:42,088 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-07-20 14:13:42,088 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-07-20 14:13:42,088 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,088 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,088 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,089 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-07-20 14:13:42,089 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 14:13:42,089 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 14:13:42,089 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 14:13:42,089 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-07-20 14:13:42,089 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-07-20 14:13:42,089 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-07-20 14:13:42,089 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-07-20 14:13:42,089 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-07-20 14:13:42,089 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,090 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,090 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:13:42,090 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-07-20 14:13:42,090 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 14:13:42,090 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 14:13:42,090 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 14:13:42,090 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-07-20 14:13:42,090 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:13:42,090 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a24~0 1) (<= (+ ~a12~0 49) 0) (<= 7 ~a15~0) (< ~a15~0 9) (<= 7 ~a21~0) (<= ~a21~0 7)) [2020-07-20 14:13:42,091 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:13:42,091 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:13:42,091 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (and (<= ~a12~0 |old(~a12~0)|) (<= 7 ~a15~0) (<= |old(~a12~0)| ~a12~0) (<= ~a24~0 |old(~a24~0)|) (<= ~a21~0 |old(~a21~0)|) (<= ~a15~0 |old(~a15~0)|) (<= 7 ~a21~0)) (not (= 7 |old(~a21~0)|)) (not (< |old(~a24~0)| 2)) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= 7 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8))) [2020-07-20 14:13:42,091 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-07-20 14:13:42,092 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse2 (<= 7 ~a21~0)) (.cse0 (<= 7 ~a15~0)) (.cse5 (<= ~a15~0 8)) (.cse20 (<= ~a21~0 7)) (.cse6 (< ~a24~0 2)) (.cse12 (< ~a21~0 6))) (let ((.cse3 (<= 19 ~a12~0)) (.cse14 (<= (+ ~a12~0 49) 0)) (.cse8 (< ~a12~0 81)) (.cse13 (<= ~a21~0 8)) (.cse4 (or .cse6 .cse12)) (.cse15 (<= ~a21~0 6)) (.cse7 (<= ~a15~0 5)) (.cse19 (<= 10 ~a21~0)) (.cse16 (or (and .cse5 .cse2 .cse20) (and .cse0 .cse5 .cse20))) (.cse1 (< ~a12~0 600007)) (.cse17 (<= (+ |old(~a12~0)| 43) 0)) (.cse18 (or (< 0 (+ ~a12~0 43)) .cse12)) (.cse9 (<= ~a24~0 1)) (.cse11 (<= ~a12~0 11))) (or (and .cse0 .cse1 .cse2 .cse3) (not (< |old(~a24~0)| 2)) (and .cse1 .cse4 .cse5 .cse2 .cse3) (and .cse6 .cse7 .cse8) (and .cse9 .cse0 (exists ((v_~a12~0_712 Int)) (let ((.cse10 (div (+ (* v_~a12~0_712 10) 2779120) 9))) (and (<= (div (+ (* .cse10 (- 1)) 437300) 10) ~a12~0) (<= v_~a12~0_712 11) (< 0 (+ v_~a12~0_712 43)) (<= .cse10 437300) (<= 0 (+ (* 10 v_~a12~0_712) 2779120))))) .cse1) (and .cse7 .cse11 (or (< (+ ~a12~0 42) 0) .cse12) .cse13) (and .cse9 .cse14 .cse0 .cse5) (and .cse15 .cse7 (exists ((v_~a12~0_487 Int)) (and (<= 0 (* 68 v_~a12~0_487)) (< 11 v_~a12~0_487) (<= (+ (* 5 (div (* v_~a12~0_487 68) 10)) 517842) ~a12~0)))) (and .cse14 .cse7) (and .cse6 .cse8 .cse13 .cse5 .cse2) (not (<= 7 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (and .cse16 .cse11 .cse4 .cse17 .cse18) (and .cse1 .cse5 .cse2 .cse19) (and .cse9 .cse15 .cse7) (not (= 7 |old(~a21~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse7 .cse19) (and .cse16 .cse9 .cse1 .cse17 .cse18) (and .cse9 .cse5 (exists ((v_~a12~0_605 Int)) (and (< 11 v_~a12~0_605) (<= v_~a12~0_605 80) (<= ~a12~0 (div (+ v_~a12~0_605 366333) 5)) (= 0 (mod (+ v_~a12~0_605 3) 5)))) .cse20 (exists ((v_prenex_2 Int)) (and (<= 0 v_prenex_2) (<= 19 v_prenex_2) (<= (+ (mod v_prenex_2 34) 13) ~a12~0)))) (and .cse6 .cse11 .cse2)))) [2020-07-20 14:13:42,092 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-20 14:13:42,092 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-07-20 14:13:42,093 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse2 (<= 7 ~a21~0)) (.cse0 (<= 7 ~a15~0)) (.cse5 (<= ~a15~0 8)) (.cse20 (<= ~a21~0 7)) (.cse6 (< ~a24~0 2)) (.cse12 (< ~a21~0 6))) (let ((.cse3 (<= 19 ~a12~0)) (.cse14 (<= (+ ~a12~0 49) 0)) (.cse8 (< ~a12~0 81)) (.cse13 (<= ~a21~0 8)) (.cse4 (or .cse6 .cse12)) (.cse15 (<= ~a21~0 6)) (.cse7 (<= ~a15~0 5)) (.cse19 (<= 10 ~a21~0)) (.cse16 (or (and .cse5 .cse2 .cse20) (and .cse0 .cse5 .cse20))) (.cse1 (< ~a12~0 600007)) (.cse17 (<= (+ |old(~a12~0)| 43) 0)) (.cse18 (or (< 0 (+ ~a12~0 43)) .cse12)) (.cse9 (<= ~a24~0 1)) (.cse11 (<= ~a12~0 11))) (or (and .cse0 .cse1 .cse2 .cse3) (not (< |old(~a24~0)| 2)) (and .cse1 .cse4 .cse5 .cse2 .cse3) (and .cse6 .cse7 .cse8) (and .cse9 .cse0 (exists ((v_~a12~0_712 Int)) (let ((.cse10 (div (+ (* v_~a12~0_712 10) 2779120) 9))) (and (<= (div (+ (* .cse10 (- 1)) 437300) 10) ~a12~0) (<= v_~a12~0_712 11) (< 0 (+ v_~a12~0_712 43)) (<= .cse10 437300) (<= 0 (+ (* 10 v_~a12~0_712) 2779120))))) .cse1) (and .cse7 .cse11 (or (< (+ ~a12~0 42) 0) .cse12) .cse13) (and .cse9 .cse14 .cse0 .cse5) (and .cse15 .cse7 (exists ((v_~a12~0_487 Int)) (and (<= 0 (* 68 v_~a12~0_487)) (< 11 v_~a12~0_487) (<= (+ (* 5 (div (* v_~a12~0_487 68) 10)) 517842) ~a12~0)))) (and .cse14 .cse7) (and .cse6 .cse8 .cse13 .cse5 .cse2) (not (<= 7 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (and .cse16 .cse11 .cse4 .cse17 .cse18) (and .cse1 .cse5 .cse2 .cse19) (and .cse9 .cse15 .cse7) (not (= 7 |old(~a21~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse7 .cse19) (and .cse16 .cse9 .cse1 .cse17 .cse18) (and .cse9 .cse5 (exists ((v_~a12~0_605 Int)) (and (< 11 v_~a12~0_605) (<= v_~a12~0_605 80) (<= ~a12~0 (div (+ v_~a12~0_605 366333) 5)) (= 0 (mod (+ v_~a12~0_605 3) 5)))) .cse20 (exists ((v_prenex_2 Int)) (and (<= 0 v_prenex_2) (<= 19 v_prenex_2) (<= (+ (mod v_prenex_2 34) 13) ~a12~0)))) (and .cse6 .cse11 .cse2)))) [2020-07-20 14:13:42,093 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-07-20 14:13:42,107 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,108 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,108 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,109 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,109 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,109 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] [2020-07-20 14:13:42,110 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] [2020-07-20 14:13:42,110 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] [2020-07-20 14:13:42,111 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] [2020-07-20 14:13:42,111 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] [2020-07-20 14:13:42,111 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] [2020-07-20 14:13:42,111 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] [2020-07-20 14:13:42,112 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-20 14:13:42,112 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-20 14:13:42,112 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-20 14:13:42,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,124 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,124 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,124 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] [2020-07-20 14:13:42,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] [2020-07-20 14:13:42,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] [2020-07-20 14:13:42,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] [2020-07-20 14:13:42,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] [2020-07-20 14:13:42,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] [2020-07-20 14:13:42,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] [2020-07-20 14:13:42,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-20 14:13:42,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-20 14:13:42,127 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-20 14:13:42,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:13:42 BoogieIcfgContainer [2020-07-20 14:13:42,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:13:42,136 INFO L168 Benchmark]: Toolchain (without parser) took 130281.82 ms. Allocated memory was 143.1 MB in the beginning and 2.1 GB in the end (delta: 1.9 GB). Free memory was 100.9 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2020-07-20 14:13:42,137 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 143.1 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 14:13:42,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 799.36 ms. Allocated memory was 143.1 MB in the beginning and 207.6 MB in the end (delta: 64.5 MB). Free memory was 100.5 MB in the beginning and 170.8 MB in the end (delta: -70.3 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. [2020-07-20 14:13:42,138 INFO L168 Benchmark]: Boogie Preprocessor took 140.20 ms. Allocated memory is still 207.6 MB. Free memory was 170.8 MB in the beginning and 164.8 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:13:42,145 INFO L168 Benchmark]: RCFGBuilder took 1748.63 ms. Allocated memory was 207.6 MB in the beginning and 238.6 MB in the end (delta: 30.9 MB). Free memory was 164.8 MB in the beginning and 156.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 77.7 MB. Max. memory is 7.1 GB. [2020-07-20 14:13:42,146 INFO L168 Benchmark]: TraceAbstraction took 127586.94 ms. Allocated memory was 238.6 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 154.7 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2020-07-20 14:13:42,148 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 143.1 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 799.36 ms. Allocated memory was 143.1 MB in the beginning and 207.6 MB in the end (delta: 64.5 MB). Free memory was 100.5 MB in the beginning and 170.8 MB in the end (delta: -70.3 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.20 ms. Allocated memory is still 207.6 MB. Free memory was 170.8 MB in the beginning and 164.8 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1748.63 ms. Allocated memory was 207.6 MB in the beginning and 238.6 MB in the end (delta: 30.9 MB). Free memory was 164.8 MB in the beginning and 156.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 77.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 127586.94 ms. Allocated memory was 238.6 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 154.7 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 127]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant [2020-07-20 14:13:42,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,158 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,158 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,158 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,158 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] [2020-07-20 14:13:42,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] [2020-07-20 14:13:42,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] [2020-07-20 14:13:42,163 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] [2020-07-20 14:13:42,164 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] [2020-07-20 14:13:42,164 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] [2020-07-20 14:13:42,164 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] [2020-07-20 14:13:42,164 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-20 14:13:42,164 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-20 14:13:42,164 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-20 14:13:42,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,170 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,170 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_712,QUANTIFIED] [2020-07-20 14:13:42,170 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] [2020-07-20 14:13:42,170 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] [2020-07-20 14:13:42,171 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_487,QUANTIFIED] [2020-07-20 14:13:42,172 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] [2020-07-20 14:13:42,173 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] [2020-07-20 14:13:42,173 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] [2020-07-20 14:13:42,173 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_605,QUANTIFIED] [2020-07-20 14:13:42,173 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-20 14:13:42,173 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-20 14:13:42,173 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] Derived loop invariant: ((((((((((((((((((((((7 <= a15 && a12 < 600007) && 7 <= a21) && 19 <= a12) || !(\old(a24) < 2)) || ((((a12 < 600007 && (a24 < 2 || a21 < 6)) && a15 <= 8) && 7 <= a21) && 19 <= a12)) || ((a24 < 2 && a15 <= 5) && a12 < 81)) || (((a24 <= 1 && 7 <= a15) && (\exists v_~a12~0_712 : int :: (((((v_~a12~0_712 * 10 + 2779120) / 9 * -1 + 437300) / 10 <= a12 && v_~a12~0_712 <= 11) && 0 < v_~a12~0_712 + 43) && (v_~a12~0_712 * 10 + 2779120) / 9 <= 437300) && 0 <= 10 * v_~a12~0_712 + 2779120)) && a12 < 600007)) || (((a15 <= 5 && a12 <= 11) && (a12 + 42 < 0 || a21 < 6)) && a21 <= 8)) || (((a24 <= 1 && a12 + 49 <= 0) && 7 <= a15) && a15 <= 8)) || ((a21 <= 6 && a15 <= 5) && (\exists v_~a12~0_487 : int :: (0 <= 68 * v_~a12~0_487 && 11 < v_~a12~0_487) && 5 * (v_~a12~0_487 * 68 / 10) + 517842 <= a12))) || (a12 + 49 <= 0 && a15 <= 5)) || ((((a24 < 2 && a12 < 81) && a21 <= 8) && a15 <= 8) && 7 <= a21)) || !(7 <= \old(a15))) || !(\old(a15) <= 8)) || (((((((a15 <= 8 && 7 <= a21) && a21 <= 7) || ((7 <= a15 && a15 <= 8) && a21 <= 7)) && a12 <= 11) && (a24 < 2 || a21 < 6)) && \old(a12) + 43 <= 0) && (0 < a12 + 43 || a21 < 6))) || (((a12 < 600007 && a15 <= 8) && 7 <= a21) && 10 <= a21)) || ((a24 <= 1 && a21 <= 6) && a15 <= 5)) || !(7 == \old(a21))) || !(\old(a12) + 49 <= 0)) || (a15 <= 5 && 10 <= a21)) || (((((((a15 <= 8 && 7 <= a21) && a21 <= 7) || ((7 <= a15 && a15 <= 8) && a21 <= 7)) && a24 <= 1) && a12 < 600007) && \old(a12) + 43 <= 0) && (0 < a12 + 43 || a21 < 6))) || ((((a24 <= 1 && a15 <= 8) && (\exists v_~a12~0_605 : int :: ((11 < v_~a12~0_605 && v_~a12~0_605 <= 80) && a12 <= (v_~a12~0_605 + 366333) / 5) && 0 == (v_~a12~0_605 + 3) % 5)) && a21 <= 7) && (\exists v_prenex_2 : int :: (0 <= v_prenex_2 && 19 <= v_prenex_2) && v_prenex_2 % 34 + 13 <= a12))) || ((a24 < 2 && a12 <= 11) && 7 <= a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 109.2s, OverallIterations: 18, TraceHistogramMax: 13, AutomataDifference: 74.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 18.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 955 SDtfs, 11904 SDslu, 814 SDs, 0 SdLazy, 19531 SolverSat, 3612 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 45.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18353 GetRequests, 18176 SyntacticMatches, 11 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 26.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6118occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 18 MinimizatonAttempts, 5634 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 337 PreInvPairs, 445 NumberOfFragments, 1633 HoareAnnotationTreeSize, 337 FomulaSimplifications, 35542 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 45043 FormulaSimplificationTreeSizeReductionInter, 16.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 4.3s SatisfiabilityAnalysisTime, 23.6s InterpolantComputationTime, 11095 NumberOfCodeBlocks, 11095 NumberOfCodeBlocksAsserted, 72 NumberOfCheckSat, 18149 ConstructedInterpolants, 112 QuantifiedInterpolants, 46318862 SizeOfPredicates, 32 NumberOfNonLiveVariables, 16288 ConjunctsInSsa, 126 ConjunctsInUnsatCore, 27 InterpolantComputations, 8 PerfectInterpolantSequences, 47809/49979 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...