/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_VARIABLES --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/Problem10_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:29:38,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:29:38,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:29:38,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:29:38,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:29:38,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:29:38,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:29:38,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:29:38,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:29:39,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:29:39,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:29:39,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:29:39,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:29:39,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:29:39,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:29:39,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:29:39,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:29:39,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:29:39,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:29:39,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:29:39,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:29:39,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:29:39,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:29:39,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:29:39,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:29:39,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:29:39,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:29:39,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:29:39,029 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 17:29:39,044 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:29:39,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:29:39,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:29:39,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:29:39,045 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:29:39,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:29:39,046 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:29:39,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:29:39,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:29:39,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:29:39,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:29:39,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:29:39,047 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:29:39,047 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:29:39,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:29:39,048 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:29:39,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:29:39,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:29:39,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:29:39,049 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:29:39,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:29:39,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:29:39,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:29:39,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:29:39,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:29:39,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:29:39,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:39,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:29:39,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:29:39,050 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_VARIABLES 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 17:29:39,388 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:29:39,401 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:29:39,404 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:29:39,405 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:29:39,406 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:29:39,406 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label30.c [2020-07-20 17:29:39,466 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/298d711b4/80afdb1fb56743c0a1d1f5b59f2e43f9/FLAGc3f1fe6af [2020-07-20 17:29:39,982 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:29:39,982 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label30.c [2020-07-20 17:29:39,993 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/298d711b4/80afdb1fb56743c0a1d1f5b59f2e43f9/FLAGc3f1fe6af [2020-07-20 17:29:40,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/298d711b4/80afdb1fb56743c0a1d1f5b59f2e43f9 [2020-07-20 17:29:40,334 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:29:40,337 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:29:40,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:29:40,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:29:40,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:29:40,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:29:40" (1/1) ... [2020-07-20 17:29:40,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57bb7d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:40, skipping insertion in model container [2020-07-20 17:29:40,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:29:40" (1/1) ... [2020-07-20 17:29:40,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:29:40,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:29:40,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:29:40,894 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:29:41,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:29:41,043 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:29:41,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:41 WrapperNode [2020-07-20 17:29:41,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:29:41,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:29:41,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:29:41,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:29:41,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:41" (1/1) ... [2020-07-20 17:29:41,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:41" (1/1) ... [2020-07-20 17:29:41,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:41" (1/1) ... [2020-07-20 17:29:41,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:41" (1/1) ... [2020-07-20 17:29:41,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:41" (1/1) ... [2020-07-20 17:29:41,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:41" (1/1) ... [2020-07-20 17:29:41,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:41" (1/1) ... [2020-07-20 17:29:41,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:29:41,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:29:41,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:29:41,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:29:41,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:41" (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 17:29:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:29:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:29:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:29:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:29:41,231 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:29:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:29:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:29:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:29:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:29:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:29:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:29:42,433 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:29:42,434 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:29:42,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:29:42 BoogieIcfgContainer [2020-07-20 17:29:42,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:29:42,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:29:42,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:29:42,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:29:42,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:29:40" (1/3) ... [2020-07-20 17:29:42,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628b490a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:29:42, skipping insertion in model container [2020-07-20 17:29:42,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:41" (2/3) ... [2020-07-20 17:29:42,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628b490a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:29:42, skipping insertion in model container [2020-07-20 17:29:42,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:29:42" (3/3) ... [2020-07-20 17:29:42,449 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label30.c [2020-07-20 17:29:42,460 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:29:42,468 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:29:42,482 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:29:42,509 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:29:42,509 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:29:42,509 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:29:42,509 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:29:42,510 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:29:42,510 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:29:42,510 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:29:42,510 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:29:42,534 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 17:29:42,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-20 17:29:42,542 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:42,543 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] [2020-07-20 17:29:42,544 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:42,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:42,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1422134543, now seen corresponding path program 1 times [2020-07-20 17:29:42,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:42,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1211139057] [2020-07-20 17:29:42,561 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 17:29:42,702 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:42,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:42,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:29:42,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:42,778 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 17:29:42,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:42,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1211139057] [2020-07-20 17:29:42,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:42,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:42,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723113281] [2020-07-20 17:29:42,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:42,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:42,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:42,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:42,804 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-20 17:29:43,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:43,773 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-20 17:29:43,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:43,775 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-07-20 17:29:43,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:43,792 INFO L225 Difference]: With dead ends: 586 [2020-07-20 17:29:43,792 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 17:29:43,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 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 17:29:43,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 17:29:43,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-20 17:29:43,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 17:29:43,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 426 transitions. [2020-07-20 17:29:43,868 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 426 transitions. Word has length 40 [2020-07-20 17:29:43,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:43,868 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 426 transitions. [2020-07-20 17:29:43,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:43,869 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 426 transitions. [2020-07-20 17:29:43,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-07-20 17:29:43,873 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:43,874 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:44,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:44,090 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:44,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:44,091 INFO L82 PathProgramCache]: Analyzing trace with hash -214474198, now seen corresponding path program 1 times [2020-07-20 17:29:44,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:44,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1916629666] [2020-07-20 17:29:44,093 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 17:29:44,182 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:44,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:44,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:44,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:44,241 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:44,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:44,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1916629666] [2020-07-20 17:29:44,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:44,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:44,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757723641] [2020-07-20 17:29:44,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:44,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:44,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:44,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:44,247 INFO L87 Difference]: Start difference. First operand 294 states and 426 transitions. Second operand 3 states. [2020-07-20 17:29:44,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:44,886 INFO L93 Difference]: Finished difference Result 868 states and 1277 transitions. [2020-07-20 17:29:44,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:44,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2020-07-20 17:29:44,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:44,892 INFO L225 Difference]: With dead ends: 868 [2020-07-20 17:29:44,893 INFO L226 Difference]: Without dead ends: 580 [2020-07-20 17:29:44,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 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 17:29:44,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-20 17:29:44,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-07-20 17:29:44,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-20 17:29:44,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 762 transitions. [2020-07-20 17:29:44,934 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 762 transitions. Word has length 114 [2020-07-20 17:29:44,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:44,935 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 762 transitions. [2020-07-20 17:29:44,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:44,935 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 762 transitions. [2020-07-20 17:29:44,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-20 17:29:44,938 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:44,939 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:45,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:45,154 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:45,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:45,155 INFO L82 PathProgramCache]: Analyzing trace with hash -958443539, now seen corresponding path program 1 times [2020-07-20 17:29:45,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:45,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036950854] [2020-07-20 17:29:45,157 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 17:29:45,232 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:45,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:45,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:45,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:45,268 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:45,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:45,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036950854] [2020-07-20 17:29:45,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:45,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:45,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259332895] [2020-07-20 17:29:45,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:45,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:45,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:45,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:45,272 INFO L87 Difference]: Start difference. First operand 580 states and 762 transitions. Second operand 3 states. [2020-07-20 17:29:45,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:45,936 INFO L93 Difference]: Finished difference Result 1440 states and 1957 transitions. [2020-07-20 17:29:45,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:45,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-07-20 17:29:45,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:45,943 INFO L225 Difference]: With dead ends: 1440 [2020-07-20 17:29:45,943 INFO L226 Difference]: Without dead ends: 866 [2020-07-20 17:29:45,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 17:29:45,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-07-20 17:29:45,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2020-07-20 17:29:45,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2020-07-20 17:29:45,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1139 transitions. [2020-07-20 17:29:45,991 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1139 transitions. Word has length 119 [2020-07-20 17:29:45,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:45,992 INFO L479 AbstractCegarLoop]: Abstraction has 866 states and 1139 transitions. [2020-07-20 17:29:45,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:45,992 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1139 transitions. [2020-07-20 17:29:45,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-20 17:29:45,996 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:45,996 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:46,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:46,211 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:46,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:46,212 INFO L82 PathProgramCache]: Analyzing trace with hash -699001651, now seen corresponding path program 1 times [2020-07-20 17:29:46,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:46,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018451386] [2020-07-20 17:29:46,214 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 17:29:46,298 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:46,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:46,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:46,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:46,337 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:46,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:46,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018451386] [2020-07-20 17:29:46,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:46,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:46,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551168026] [2020-07-20 17:29:46,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:46,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:46,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:46,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:46,341 INFO L87 Difference]: Start difference. First operand 866 states and 1139 transitions. Second operand 3 states. [2020-07-20 17:29:47,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:47,022 INFO L93 Difference]: Finished difference Result 2012 states and 2717 transitions. [2020-07-20 17:29:47,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:47,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-07-20 17:29:47,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:47,034 INFO L225 Difference]: With dead ends: 2012 [2020-07-20 17:29:47,034 INFO L226 Difference]: Without dead ends: 1152 [2020-07-20 17:29:47,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 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 17:29:47,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-07-20 17:29:47,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2020-07-20 17:29:47,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1152 states. [2020-07-20 17:29:47,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1466 transitions. [2020-07-20 17:29:47,073 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1466 transitions. Word has length 135 [2020-07-20 17:29:47,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:47,074 INFO L479 AbstractCegarLoop]: Abstraction has 1152 states and 1466 transitions. [2020-07-20 17:29:47,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:47,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1466 transitions. [2020-07-20 17:29:47,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-07-20 17:29:47,081 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:47,082 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 17:29:47,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:47,295 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:47,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:47,296 INFO L82 PathProgramCache]: Analyzing trace with hash -70500101, now seen corresponding path program 1 times [2020-07-20 17:29:47,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:47,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801998822] [2020-07-20 17:29:47,298 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 17:29:47,395 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:47,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:47,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:47,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:47,481 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:47,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:29:47,602 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:47,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801998822] [2020-07-20 17:29:47,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:29:47,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:29:47,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643165191] [2020-07-20 17:29:47,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:29:47,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:47,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:29:47,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:29:47,605 INFO L87 Difference]: Start difference. First operand 1152 states and 1466 transitions. Second operand 7 states. [2020-07-20 17:29:49,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:49,061 INFO L93 Difference]: Finished difference Result 3951 states and 5238 transitions. [2020-07-20 17:29:49,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 17:29:49,061 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 192 [2020-07-20 17:29:49,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:49,075 INFO L225 Difference]: With dead ends: 3951 [2020-07-20 17:29:49,076 INFO L226 Difference]: Without dead ends: 1921 [2020-07-20 17:29:49,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 379 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-20 17:29:49,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2020-07-20 17:29:49,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1885. [2020-07-20 17:29:49,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1885 states. [2020-07-20 17:29:49,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2211 transitions. [2020-07-20 17:29:49,140 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2211 transitions. Word has length 192 [2020-07-20 17:29:49,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:49,141 INFO L479 AbstractCegarLoop]: Abstraction has 1885 states and 2211 transitions. [2020-07-20 17:29:49,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:29:49,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2211 transitions. [2020-07-20 17:29:49,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-07-20 17:29:49,146 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:49,146 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 17:29:49,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:49,362 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:49,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:49,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1615395942, now seen corresponding path program 1 times [2020-07-20 17:29:49,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:49,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466766874] [2020-07-20 17:29:49,364 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 17:29:49,475 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:49,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:49,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:49,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:49,545 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-20 17:29:49,546 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:49,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466766874] [2020-07-20 17:29:49,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:49,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:49,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610675882] [2020-07-20 17:29:49,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:49,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:49,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:49,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:49,549 INFO L87 Difference]: Start difference. First operand 1885 states and 2211 transitions. Second operand 3 states. [2020-07-20 17:29:50,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:50,006 INFO L93 Difference]: Finished difference Result 1887 states and 2212 transitions. [2020-07-20 17:29:50,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:50,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2020-07-20 17:29:50,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:50,016 INFO L225 Difference]: With dead ends: 1887 [2020-07-20 17:29:50,017 INFO L226 Difference]: Without dead ends: 1885 [2020-07-20 17:29:50,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 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 17:29:50,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2020-07-20 17:29:50,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1885. [2020-07-20 17:29:50,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1885 states. [2020-07-20 17:29:50,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2210 transitions. [2020-07-20 17:29:50,075 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2210 transitions. Word has length 207 [2020-07-20 17:29:50,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:50,075 INFO L479 AbstractCegarLoop]: Abstraction has 1885 states and 2210 transitions. [2020-07-20 17:29:50,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:50,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2210 transitions. [2020-07-20 17:29:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-07-20 17:29:50,079 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:50,080 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 17:29:50,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:50,295 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:50,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:50,296 INFO L82 PathProgramCache]: Analyzing trace with hash -910777059, now seen corresponding path program 1 times [2020-07-20 17:29:50,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:50,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901630693] [2020-07-20 17:29:50,298 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 17:29:50,406 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:50,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:50,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:50,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:50,461 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:50,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:29:50,592 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:50,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901630693] [2020-07-20 17:29:50,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:29:50,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:29:50,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827949732] [2020-07-20 17:29:50,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:29:50,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:50,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:29:50,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:29:50,594 INFO L87 Difference]: Start difference. First operand 1885 states and 2210 transitions. Second operand 6 states. [2020-07-20 17:29:51,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:51,436 INFO L93 Difference]: Finished difference Result 4086 states and 4866 transitions. [2020-07-20 17:29:51,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:29:51,436 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 208 [2020-07-20 17:29:51,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:51,449 INFO L225 Difference]: With dead ends: 4086 [2020-07-20 17:29:51,450 INFO L226 Difference]: Without dead ends: 2350 [2020-07-20 17:29:51,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 410 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 17:29:51,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2350 states. [2020-07-20 17:29:51,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2350 to 2201. [2020-07-20 17:29:51,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2201 states. [2020-07-20 17:29:51,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 2612 transitions. [2020-07-20 17:29:51,518 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 2612 transitions. Word has length 208 [2020-07-20 17:29:51,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:51,519 INFO L479 AbstractCegarLoop]: Abstraction has 2201 states and 2612 transitions. [2020-07-20 17:29:51,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:29:51,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 2612 transitions. [2020-07-20 17:29:51,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-07-20 17:29:51,524 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:51,524 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 17:29:51,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:51,738 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:51,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:51,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1055956540, now seen corresponding path program 1 times [2020-07-20 17:29:51,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:51,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [350157100] [2020-07-20 17:29:51,739 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 17:29:51,875 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:51,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:51,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 17:29:51,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:51,942 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-20 17:29:51,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:51,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [350157100] [2020-07-20 17:29:51,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:51,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:29:51,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711603716] [2020-07-20 17:29:51,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:29:51,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:51,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:29:51,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:29:51,945 INFO L87 Difference]: Start difference. First operand 2201 states and 2612 transitions. Second operand 5 states. [2020-07-20 17:29:52,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:52,727 INFO L93 Difference]: Finished difference Result 4281 states and 5107 transitions. [2020-07-20 17:29:52,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:29:52,730 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 215 [2020-07-20 17:29:52,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:52,739 INFO L225 Difference]: With dead ends: 4281 [2020-07-20 17:29:52,740 INFO L226 Difference]: Without dead ends: 2229 [2020-07-20 17:29:52,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:29:52,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2229 states. [2020-07-20 17:29:52,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2229 to 2219. [2020-07-20 17:29:52,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2219 states. [2020-07-20 17:29:52,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 2631 transitions. [2020-07-20 17:29:52,812 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 2631 transitions. Word has length 215 [2020-07-20 17:29:52,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:52,813 INFO L479 AbstractCegarLoop]: Abstraction has 2219 states and 2631 transitions. [2020-07-20 17:29:52,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:29:52,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 2631 transitions. [2020-07-20 17:29:52,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-07-20 17:29:52,821 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:52,821 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:29:53,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:53,037 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:53,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:53,037 INFO L82 PathProgramCache]: Analyzing trace with hash -878759303, now seen corresponding path program 1 times [2020-07-20 17:29:53,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:53,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1903615217] [2020-07-20 17:29:53,039 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 17:29:53,238 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:53,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:53,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:53,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:53,276 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 17:29:53,278 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:29:53,338 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 280 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-20 17:29:53,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:29:53,415 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:29:53,416 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:29:53,419 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-20 17:29:53,419 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:29:53,573 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 171 proven. 77 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-20 17:29:53,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1903615217] [2020-07-20 17:29:53,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:29:53,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:29:53,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708792839] [2020-07-20 17:29:53,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:29:53,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:53,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:29:53,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:29:53,576 INFO L87 Difference]: Start difference. First operand 2219 states and 2631 transitions. Second operand 6 states. [2020-07-20 17:29:54,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:54,514 INFO L93 Difference]: Finished difference Result 4319 states and 5219 transitions. [2020-07-20 17:29:54,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:29:54,520 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 285 [2020-07-20 17:29:54,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:54,529 INFO L225 Difference]: With dead ends: 4319 [2020-07-20 17:29:54,529 INFO L226 Difference]: Without dead ends: 2249 [2020-07-20 17:29:54,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 566 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:29:54,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2020-07-20 17:29:54,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 2076. [2020-07-20 17:29:54,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2076 states. [2020-07-20 17:29:54,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 2381 transitions. [2020-07-20 17:29:54,590 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 2381 transitions. Word has length 285 [2020-07-20 17:29:54,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:54,590 INFO L479 AbstractCegarLoop]: Abstraction has 2076 states and 2381 transitions. [2020-07-20 17:29:54,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:29:54,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 2381 transitions. [2020-07-20 17:29:54,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-07-20 17:29:54,597 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:54,597 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:54,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:54,812 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:54,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:54,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1828439900, now seen corresponding path program 1 times [2020-07-20 17:29:54,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:54,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69863793] [2020-07-20 17:29:54,813 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 17:29:54,946 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:54,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:54,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:54,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:55,062 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2020-07-20 17:29:55,062 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:55,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69863793] [2020-07-20 17:29:55,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:55,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:55,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051089356] [2020-07-20 17:29:55,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:55,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:55,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:55,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:55,065 INFO L87 Difference]: Start difference. First operand 2076 states and 2381 transitions. Second operand 3 states. [2020-07-20 17:29:55,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:55,537 INFO L93 Difference]: Finished difference Result 2223 states and 2531 transitions. [2020-07-20 17:29:55,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:55,537 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2020-07-20 17:29:55,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:55,545 INFO L225 Difference]: With dead ends: 2223 [2020-07-20 17:29:55,545 INFO L226 Difference]: Without dead ends: 2074 [2020-07-20 17:29:55,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 298 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 17:29:55,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2020-07-20 17:29:55,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 1929. [2020-07-20 17:29:55,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1929 states. [2020-07-20 17:29:55,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2199 transitions. [2020-07-20 17:29:55,587 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2199 transitions. Word has length 300 [2020-07-20 17:29:55,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:55,588 INFO L479 AbstractCegarLoop]: Abstraction has 1929 states and 2199 transitions. [2020-07-20 17:29:55,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:55,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2199 transitions. [2020-07-20 17:29:55,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-07-20 17:29:55,596 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:55,596 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 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 17:29:55,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:55,810 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:55,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:55,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1060741542, now seen corresponding path program 1 times [2020-07-20 17:29:55,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:55,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136874266] [2020-07-20 17:29:55,811 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 17:29:56,021 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:56,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:56,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-20 17:29:56,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:56,068 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:29:56,070 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:29:56,071 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:29:56,073 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:29:56,075 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:56,081 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:56,084 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:56,089 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:29:56,094 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:56,099 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:29:56,100 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:29:56,102 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:29:56,103 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:56,105 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:29:56,106 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:29:56,111 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:29:56,116 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:29:56,117 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:56,118 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:56,120 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:56,122 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:29:56,126 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:29:56,127 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:56,127 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:56,129 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:56,130 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:30:11,307 WARN L193 SmtUtils]: Spent 15.08 s on a formula simplification. DAG size of input: 64 DAG size of output: 34 [2020-07-20 17:30:11,343 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 17:30:11,445 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 17:30:11,445 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:30:11,446 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:30:11,479 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:30:11,679 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 315 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-20 17:30:11,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:30:11,800 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:30:11,801 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:30:11,806 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:30:11,807 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:30:11,829 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:30:11,829 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:30:11,947 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:30:11,950 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:30:11,951 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:30:11,952 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:30:11,954 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:30:11,954 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:30:11,955 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:30:11,958 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:30:11,961 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:30:11,965 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:30:11,967 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:30:11,968 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 17:30:12,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136874266] [2020-07-20 17:30:12,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-20 17:30:12,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-20 17:30:12,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252557074] [2020-07-20 17:30:12,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 17:30:12,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:30:12,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 17:30:12,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-20 17:30:12,082 INFO L87 Difference]: Start difference. First operand 1929 states and 2199 transitions. Second operand 8 states. [2020-07-20 17:30:12,864 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-07-20 17:30:44,434 WARN L193 SmtUtils]: Spent 29.66 s on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-07-20 17:30:48,858 WARN L193 SmtUtils]: Spent 4.07 s on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2020-07-20 17:30:51,584 WARN L193 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2020-07-20 17:30:52,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:30:52,207 INFO L93 Difference]: Finished difference Result 5042 states and 5884 transitions. [2020-07-20 17:30:52,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-20 17:30:52,213 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 330 [2020-07-20 17:30:52,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:30:52,224 INFO L225 Difference]: With dead ends: 5042 [2020-07-20 17:30:52,224 INFO L226 Difference]: Without dead ends: 3262 [2020-07-20 17:30:52,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 529 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 52.1s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2020-07-20 17:30:52,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2020-07-20 17:30:52,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 2964. [2020-07-20 17:30:52,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2964 states. [2020-07-20 17:30:52,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 3390 transitions. [2020-07-20 17:30:52,289 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 3390 transitions. Word has length 330 [2020-07-20 17:30:52,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:30:52,290 INFO L479 AbstractCegarLoop]: Abstraction has 2964 states and 3390 transitions. [2020-07-20 17:30:52,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 17:30:52,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 3390 transitions. [2020-07-20 17:30:52,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-07-20 17:30:52,297 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:30:52,298 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:52,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:52,510 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:30:52,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:30:52,510 INFO L82 PathProgramCache]: Analyzing trace with hash -924465415, now seen corresponding path program 1 times [2020-07-20 17:30:52,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:30:52,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041930107] [2020-07-20 17:30:52,511 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 17:30:52,712 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:30:52,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:30:52,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 18 conjunts are in the unsatisfiable core [2020-07-20 17:30:52,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:30:52,767 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:30:52,768 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:30:52,770 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:30:52,771 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-20 17:30:52,772 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:30:52,772 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:30:52,774 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:30:52,775 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:30:52,775 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:30:52,777 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:30:52,777 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:30:52,780 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:30:52,781 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:30:52,782 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:30:52,783 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:30:52,783 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:30:52,785 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:30:52,787 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:30:52,788 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:30:52,791 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:30:52,792 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:30:52,794 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:30:52,794 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:30:52,799 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:31:33,783 WARN L193 SmtUtils]: Spent 40.88 s on a formula simplification. DAG size of input: 82 DAG size of output: 46 [2020-07-20 17:31:35,839 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_6 Int)) (let ((.cse0 (mod v_prenex_6 25))) (and (< .cse0 42617) (<= |c_old(~a1~0)| v_prenex_6) (= (+ (div (+ .cse0 (- 42592)) 5) 8518) c_~a1~0) (not (= 0 (mod (+ .cse0 3) 5))) (<= 0 v_prenex_6) (< .cse0 42592)))) (exists ((v_~a1~0_415 Int)) (let ((.cse1 (mod v_~a1~0_415 25))) (and (not (= 0 .cse1)) (< v_~a1~0_415 0) (<= |c_old(~a1~0)| v_~a1~0_415) (= 0 (mod (+ .cse1 3) 5)) (= (+ (div (+ .cse1 (- 42617)) 5) 8517) c_~a1~0)))) (exists ((v_prenex_7 Int)) (let ((.cse2 (mod v_prenex_7 25))) (and (< .cse2 42617) (<= |c_old(~a1~0)| v_prenex_7) (not (= 0 .cse2)) (not (= 0 (mod (+ .cse2 3) 5))) (< v_prenex_7 0) (< .cse2 42592) (= c_~a1~0 (+ (div (+ .cse2 (- 42617)) 5) 8518))))) (exists ((v_prenex_5 Int)) (let ((.cse3 (mod v_prenex_5 25))) (and (<= |c_old(~a1~0)| v_prenex_5) (= 0 (mod (+ .cse3 3) 5)) (= c_~a1~0 (+ (div (+ .cse3 (- 42592)) 5) 8517)) (<= 0 v_prenex_5))))) is different from true [2020-07-20 17:31:35,842 INFO L501 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-07-20 17:31:40,162 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 31 [2020-07-20 17:31:42,377 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:31:42,380 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:31:42,738 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 35 [2020-07-20 17:31:43,053 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 166 proven. 111 refuted. 1 times theorem prover too weak. 71 trivial. 2 not checked. [2020-07-20 17:31:43,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:31:45,270 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:31:45,495 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:31:45,706 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 17 [2020-07-20 17:31:45,879 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-07-20 17:31:45,879 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:31:45,880 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 3, 2, 3, 2, 1] term [2020-07-20 17:31:45,880 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:31:45,881 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 3, 2, 1] term [2020-07-20 17:31:45,881 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:31:45,882 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 3, 2, 1] term [2020-07-20 17:31:45,882 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:31:45,883 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 3, 2, 3, 2, 1] term [2020-07-20 17:31:45,884 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:31:45,884 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 3, 2, 1] term [2020-07-20 17:31:45,884 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:31:45,885 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 3, 2, 1] term [2020-07-20 17:31:45,885 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:31:45,886 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:31:45,886 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:31:45,887 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 17:31:45,889 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 17:31:45,889 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-20 17:31:45,890 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:31:45,891 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:31:45,892 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-20 17:31:45,892 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-20 17:31:45,893 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-20 17:31:45,894 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-20 17:31:45,894 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:31:45,895 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-20 17:31:45,896 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-20 17:31:45,896 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-20 17:31:45,897 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-20 17:31:45,898 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:31:45,899 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 17:31:45,899 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-20 17:31:45,900 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-20 17:31:45,900 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-20 17:31:45,902 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-07-20 17:31:45,903 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 17:31:45,904 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-20 17:31:46,191 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 275 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-20 17:31:46,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041930107] [2020-07-20 17:31:46,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:31:46,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6] total 16 [2020-07-20 17:31:46,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882728481] [2020-07-20 17:31:46,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-20 17:31:46,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:31:46,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-20 17:31:46,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=4, NotChecked=26, Total=240 [2020-07-20 17:31:46,193 INFO L87 Difference]: Start difference. First operand 2964 states and 3390 transitions. Second operand 16 states. [2020-07-20 17:31:46,418 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-07-20 17:31:52,945 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-07-20 17:33:42,272 WARN L193 SmtUtils]: Spent 25.23 s on a formula simplification. DAG size of input: 69 DAG size of output: 32 [2020-07-20 17:33:57,973 WARN L193 SmtUtils]: Spent 12.60 s on a formula simplification. DAG size of input: 70 DAG size of output: 28 [2020-07-20 17:34:37,326 WARN L193 SmtUtils]: Spent 18.29 s on a formula simplification that was a NOOP. DAG size: 48 [2020-07-20 17:34:44,180 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-07-20 17:34:55,888 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-07-20 17:35:08,980 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-07-20 17:35:13,593 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-07-20 17:35:36,907 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-07-20 17:36:03,951 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-07-20 17:37:00,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:37:00,656 INFO L93 Difference]: Finished difference Result 9166 states and 10679 transitions. [2020-07-20 17:37:00,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-07-20 17:37:00,665 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 349 [2020-07-20 17:37:00,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:37:00,666 INFO L225 Difference]: With dead ends: 9166 [2020-07-20 17:37:00,666 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:37:00,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 753 GetRequests, 704 SyntacticMatches, 7 SemanticMatches, 42 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 124.0s TimeCoverageRelationStatistics Valid=395, Invalid=1408, Unknown=7, NotChecked=82, Total=1892 [2020-07-20 17:37:00,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:37:00,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:37:00,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:37:00,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:37:00,681 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 349 [2020-07-20 17:37:00,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:37:00,682 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:37:00,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-20 17:37:00,682 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:37:00,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:37:00,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:37:00,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:37:01,791 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 188 [2020-07-20 17:37:01,958 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 188 [2020-07-20 17:37:02,136 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 12 [2020-07-20 17:37:02,551 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 25 [2020-07-20 17:37:11,976 WARN L193 SmtUtils]: Spent 9.41 s on a formula simplification. DAG size of input: 279 DAG size of output: 79 [2020-07-20 17:38:04,986 WARN L193 SmtUtils]: Spent 52.90 s on a formula simplification. DAG size of input: 205 DAG size of output: 41 [2020-07-20 17:39:04,318 WARN L193 SmtUtils]: Spent 59.33 s on a formula simplification. DAG size of input: 205 DAG size of output: 41 [2020-07-20 17:39:04,325 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:39:04,325 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-20 17:39:04,326 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:39:04,326 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 17:39:04,326 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,326 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,327 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,327 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,327 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,327 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,327 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 17:39:04,327 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 17:39:04,327 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 17:39:04,327 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 17:39:04,328 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 17:39:04,328 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 17:39:04,328 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 17:39:04,328 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 17:39:04,328 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 17:39:04,328 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 17:39:04,329 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 17:39:04,329 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,329 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,329 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,329 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,329 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,329 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 17:39:04,329 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 17:39:04,330 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 17:39:04,330 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 17:39:04,330 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 17:39:04,330 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 17:39:04,330 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 17:39:04,330 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 17:39:04,330 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 17:39:04,330 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 17:39:04,330 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 17:39:04,330 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 17:39:04,330 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 17:39:04,330 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2020-07-20 17:39:04,331 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 17:39:04,331 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,331 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,331 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,331 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,331 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,331 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 17:39:04,331 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 17:39:04,331 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 17:39:04,331 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 17:39:04,331 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 17:39:04,332 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 17:39:04,332 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 17:39:04,332 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 17:39:04,332 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 17:39:04,332 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 17:39:04,332 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,332 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,332 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,332 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,332 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,333 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 17:39:04,333 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 17:39:04,333 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 17:39:04,333 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 17:39:04,333 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 17:39:04,333 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 17:39:04,333 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 17:39:04,333 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 17:39:04,334 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 17:39:04,334 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 17:39:04,334 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 17:39:04,334 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 17:39:04,334 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 17:39:04,334 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,334 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,334 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,334 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,335 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,335 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 17:39:04,335 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 17:39:04,335 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 17:39:04,335 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 17:39:04,335 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 17:39:04,335 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 17:39:04,335 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 17:39:04,336 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 17:39:04,336 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 17:39:04,336 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,336 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,336 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,336 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,336 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,336 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,336 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,336 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 17:39:04,336 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 17:39:04,336 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 17:39:04,336 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 17:39:04,336 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 17:39:04,337 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 17:39:04,337 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 17:39:04,337 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 17:39:04,337 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 17:39:04,337 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 17:39:04,337 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 17:39:04,337 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 17:39:04,337 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 17:39:04,337 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,337 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,337 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,338 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,338 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 17:39:04,338 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,338 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,338 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 17:39:04,338 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 17:39:04,338 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 17:39:04,338 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 17:39:04,338 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 17:39:04,338 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 17:39:04,339 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 17:39:04,339 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 17:39:04,339 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 17:39:04,339 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 17:39:04,339 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 17:39:04,339 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 17:39:04,339 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 17:39:04,339 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,339 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,339 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,339 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,339 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,339 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,339 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 17:39:04,339 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 17:39:04,340 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 17:39:04,340 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 17:39:04,340 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 17:39:04,340 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 17:39:04,340 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 17:39:04,340 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 17:39:04,340 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 17:39:04,340 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 17:39:04,340 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 17:39:04,340 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse11 (<= 9 ~a19~0)) (.cse7 (<= ~a10~0 |old(~a10~0)|)) (.cse8 (<= |old(~a10~0)| ~a10~0)) (.cse9 (= ~a1~0 |old(~a1~0)|)) (.cse12 (< ~a19~0 10))) (let ((.cse2 (not (<= |old(~a1~0)| 218))) (.cse13 (not (<= |old(~a10~0)| 1))) (.cse3 (and .cse11 .cse7 .cse8 .cse9 .cse12)) (.cse4 (not (<= 4 |old(~a10~0)|))) (.cse0 (not (< |old(~a19~0)| 10))) (.cse1 (not (<= 9 |old(~a19~0)|))) (.cse6 (<= ~a19~0 |old(~a19~0)|)) (.cse5 (not (<= |old(~a19~0)| 8))) (.cse10 (not (<= 2 |old(~a10~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 (and .cse6 (<= 4 ~a10~0))) (or (and .cse7 .cse8 .cse6 .cse9) .cse5 .cse2 .cse10) (or (not (<= |old(~a1~0)| 23)) (<= ~a1~0 23) .cse5) (or (<= ~a10~0 0) (not (<= |old(~a10~0)| 0))) (or (and .cse11 (<= ~a10~0 2) (<= 2 ~a10~0) .cse12 .cse9) .cse0 .cse1 .cse10 (not (<= |old(~a10~0)| 2))) (or .cse1 (and .cse11 .cse7 .cse8 .cse9) .cse13) (or (and (<= ~a10~0 1) .cse6) .cse13) (or (not (<= 23 (div (+ |old(~a1~0)| (- 517989)) 5))) .cse0 .cse1 .cse3) (or .cse4 .cse0 .cse1 (and .cse11 .cse7 .cse8 .cse12 .cse9)) (or (and (<= 8 ~a19~0) .cse7 .cse8 .cse6 .cse9) .cse5 (not (<= 8 |old(~a19~0)|)) .cse10)))) [2020-07-20 17:39:04,340 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 17:39:04,340 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 17:39:04,341 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 17:39:04,341 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,341 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,341 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,341 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,341 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,341 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,341 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 17:39:04,341 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 17:39:04,341 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 17:39:04,341 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 17:39:04,341 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 17:39:04,341 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 17:39:04,341 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 17:39:04,341 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 17:39:04,342 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 17:39:04,342 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 17:39:04,342 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 17:39:04,342 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 17:39:04,342 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 17:39:04,342 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,342 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,342 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,342 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,343 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,343 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,343 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 17:39:04,343 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 17:39:04,343 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 17:39:04,343 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 17:39:04,343 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 17:39:04,343 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 17:39:04,343 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 17:39:04,343 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 17:39:04,344 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 17:39:04,344 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 17:39:04,344 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 17:39:04,344 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 17:39:04,344 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,344 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,344 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,344 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,344 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,344 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:39:04,345 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 17:39:04,345 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 17:39:04,345 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 17:39:04,345 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 17:39:04,345 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 17:39:04,345 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 17:39:04,345 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 17:39:04,345 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 17:39:04,345 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 17:39:04,345 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 17:39:04,346 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 17:39:04,346 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 17:39:04,346 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:39:04,346 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 9 ~a19~0) (= 23 ~a1~0) (< ~a19~0 10)) [2020-07-20 17:39:04,346 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:39:04,346 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:39:04,346 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< |old(~a19~0)| 10)) (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|) (< ~a19~0 10))) [2020-07-20 17:39:04,347 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 17:39:04,347 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse1 (<= 8 ~a19~0)) (.cse0 (< ~a19~0 10))) (or (<= ~a10~0 1) (not (< |old(~a19~0)| 10)) (and (<= 4 ~a10~0) .cse0) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (and (<= ~a19~0 8) .cse1) (and .cse1 (<= ~a10~0 2) .cse0) (and (<= ~a1~0 218) .cse0) (and (<= 23 (div (+ ~a1~0 (- 517989)) 5)) .cse1 .cse0))) [2020-07-20 17:39:04,347 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 17:39:04,347 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 17:39:04,347 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse1 (<= 8 ~a19~0)) (.cse0 (< ~a19~0 10))) (or (<= ~a10~0 1) (not (< |old(~a19~0)| 10)) (and (<= 4 ~a10~0) .cse0) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (and (<= ~a19~0 8) .cse1) (and .cse1 (<= ~a10~0 2) .cse0) (and (<= ~a1~0 218) .cse0) (and (<= 23 (div (+ ~a1~0 (- 517989)) 5)) .cse1 .cse0))) [2020-07-20 17:39:04,347 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 17:39:04,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:39:04 BoogieIcfgContainer [2020-07-20 17:39:04,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:39:04,370 INFO L168 Benchmark]: Toolchain (without parser) took 564034.81 ms. Allocated memory was 143.1 MB in the beginning and 491.8 MB in the end (delta: 348.7 MB). Free memory was 103.1 MB in the beginning and 136.5 MB in the end (delta: -33.4 MB). Peak memory consumption was 390.1 MB. Max. memory is 7.1 GB. [2020-07-20 17:39:04,371 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 17:39:04,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.47 ms. Allocated memory was 143.1 MB in the beginning and 203.9 MB in the end (delta: 60.8 MB). Free memory was 102.7 MB in the beginning and 170.1 MB in the end (delta: -67.4 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2020-07-20 17:39:04,372 INFO L168 Benchmark]: Boogie Preprocessor took 122.52 ms. Allocated memory is still 203.9 MB. Free memory was 170.1 MB in the beginning and 165.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-07-20 17:39:04,373 INFO L168 Benchmark]: RCFGBuilder took 1272.95 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 165.4 MB in the beginning and 177.7 MB in the end (delta: -12.2 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. [2020-07-20 17:39:04,373 INFO L168 Benchmark]: TraceAbstraction took 561926.87 ms. Allocated memory was 237.0 MB in the beginning and 491.8 MB in the end (delta: 254.8 MB). Free memory was 177.7 MB in the beginning and 136.5 MB in the end (delta: 41.2 MB). Peak memory consumption was 370.8 MB. Max. memory is 7.1 GB. [2020-07-20 17:39:04,376 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 706.47 ms. Allocated memory was 143.1 MB in the beginning and 203.9 MB in the end (delta: 60.8 MB). Free memory was 102.7 MB in the beginning and 170.1 MB in the end (delta: -67.4 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.52 ms. Allocated memory is still 203.9 MB. Free memory was 170.1 MB in the beginning and 165.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1272.95 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 165.4 MB in the beginning and 177.7 MB in the end (delta: -12.2 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 561926.87 ms. Allocated memory was 237.0 MB in the beginning and 491.8 MB in the end (delta: 254.8 MB). Free memory was 177.7 MB in the beginning and 136.5 MB in the end (delta: 41.2 MB). Peak memory consumption was 370.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((((((a10 <= 1 || !(\old(a19) < 10)) || (4 <= a10 && a19 < 10)) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || !(9 <= \old(a19))) || (a19 <= 8 && 8 <= a19)) || ((8 <= a19 && a10 <= 2) && a19 < 10)) || (a1 <= 218 && a19 < 10)) || ((23 <= (a1 + -517989) / 5 && 8 <= a19) && a19 < 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 438.3s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 362.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 123.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 624 SDtfs, 5361 SDslu, 494 SDs, 0 SdLazy, 11192 SolverSat, 1879 SolverUnsat, 93 SolverUnknown, 0 SolverNotchecked, 230.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3813 GetRequests, 3702 SyntacticMatches, 14 SemanticMatches, 97 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 176.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2964occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 811 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 158 PreInvPairs, 276 NumberOfFragments, 440 HoareAnnotationTreeSize, 158 FomulaSimplifications, 8576 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10816 FormulaSimplificationTreeSizeReductionInter, 122.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 70.7s InterpolantComputationTime, 2494 NumberOfCodeBlocks, 2494 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 3512 ConstructedInterpolants, 46 QuantifiedInterpolants, 3575472 SizeOfPredicates, 19 NumberOfNonLiveVariables, 4535 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 2724/2929 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...