/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:58:16,259 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 22:58:16,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:58:16,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:58:16,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:58:16,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:58:16,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:58:16,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:58:16,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:58:16,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:58:16,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:58:16,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:58:16,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:58:16,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:58:16,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:58:16,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:58:16,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:58:16,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:58:16,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:58:16,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:58:16,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:58:16,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:58:16,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:58:16,310 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 22:58:16,325 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:58:16,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:58:16,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:58:16,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:58:16,326 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:58:16,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:58:16,327 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:58:16,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:58:16,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:58:16,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:58:16,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:58:16,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:58:16,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:58:16,328 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:58:16,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:58:16,329 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:58:16,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:58:16,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:58:16,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:58:16,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:58:16,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:58:16,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:58:16,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:58:16,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:58:16,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:58:16,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:58:16,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:16,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:58:16,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:58:16,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:58:16,607 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:58:16,620 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:58:16,623 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:58:16,625 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:58:16,625 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:58:16,626 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label30.c [2020-07-21 22:58:16,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/139dd27a8/7c5b4abe462f4dd292ab239fec54ea17/FLAGb0256405e [2020-07-21 22:58:17,174 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:58:17,175 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label30.c [2020-07-21 22:58:17,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/139dd27a8/7c5b4abe462f4dd292ab239fec54ea17/FLAGb0256405e [2020-07-21 22:58:17,435 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/139dd27a8/7c5b4abe462f4dd292ab239fec54ea17 [2020-07-21 22:58:17,447 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:58:17,450 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:58:17,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:58:17,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:58:17,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:58:17,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:58:17" (1/1) ... [2020-07-21 22:58:17,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71bc094c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:58:17, skipping insertion in model container [2020-07-21 22:58:17,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:58:17" (1/1) ... [2020-07-21 22:58:17,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:58:17,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:58:17,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:58:17,948 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:58:18,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:58:18,212 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:58:18,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:58:18 WrapperNode [2020-07-21 22:58:18,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:58:18,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:58:18,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:58:18,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:58:18,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:58:18" (1/1) ... [2020-07-21 22:58:18,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:58:18" (1/1) ... [2020-07-21 22:58:18,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:58:18" (1/1) ... [2020-07-21 22:58:18,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:58:18" (1/1) ... [2020-07-21 22:58:18,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:58:18" (1/1) ... [2020-07-21 22:58:18,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:58:18" (1/1) ... [2020-07-21 22:58:18,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:58:18" (1/1) ... [2020-07-21 22:58:18,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:58:18,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:58:18,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:58:18,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:58:18,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:58:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:58:18,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:58:18,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:58:18,401 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:58:18,401 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:58:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:58:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:58:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:58:18,403 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:58:18,403 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:58:18,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:58:18,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:58:19,727 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:58:19,727 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:58:19,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:58:19 BoogieIcfgContainer [2020-07-21 22:58:19,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:58:19,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:58:19,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:58:19,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:58:19,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:58:17" (1/3) ... [2020-07-21 22:58:19,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c0c558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:58:19, skipping insertion in model container [2020-07-21 22:58:19,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:58:18" (2/3) ... [2020-07-21 22:58:19,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c0c558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:58:19, skipping insertion in model container [2020-07-21 22:58:19,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:58:19" (3/3) ... [2020-07-21 22:58:19,743 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label30.c [2020-07-21 22:58:19,757 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:58:19,765 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:58:19,782 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:58:19,812 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:58:19,812 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:58:19,812 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:58:19,813 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:58:19,813 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:58:19,813 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:58:19,814 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:58:19,814 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:58:19,840 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 22:58:19,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-21 22:58:19,849 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:19,851 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] [2020-07-21 22:58:19,851 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:19,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:19,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1422134543, now seen corresponding path program 1 times [2020-07-21 22:58:19,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:19,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124820443] [2020-07-21 22:58:19,871 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:19,979 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:58:19,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:19,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 22:58:19,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:20,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:58:20,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:58:20,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1124820443] [2020-07-21 22:58:20,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:58:20,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:58:20,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256174222] [2020-07-21 22:58:20,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:58:20,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:20,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:58:20,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:58:20,083 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 22:58:21,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:21,099 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 22:58:21,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:58:21,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-07-21 22:58:21,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:21,117 INFO L225 Difference]: With dead ends: 571 [2020-07-21 22:58:21,117 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 22:58:21,124 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 [2020-07-21 22:58:21,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 22:58:21,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 22:58:21,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 22:58:21,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-21 22:58:21,193 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 40 [2020-07-21 22:58:21,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:21,193 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-21 22:58:21,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:58:21,194 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-21 22:58:21,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-21 22:58:21,199 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:21,199 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] [2020-07-21 22:58:21,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:21,413 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:21,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:21,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1869128306, now seen corresponding path program 1 times [2020-07-21 22:58:21,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:21,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859456440] [2020-07-21 22:58:21,416 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:21,504 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:58:21,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:21,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 22:58:21,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:21,564 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 22:58:21,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:58:21,674 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 22:58:21,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859456440] [2020-07-21 22:58:21,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 22:58:21,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2020-07-21 22:58:21,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428372851] [2020-07-21 22:58:21,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 22:58:21,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:21,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 22:58:21,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:58:21,678 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 4 states. [2020-07-21 22:58:22,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:22,387 INFO L93 Difference]: Finished difference Result 586 states and 786 transitions. [2020-07-21 22:58:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 22:58:22,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2020-07-21 22:58:22,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:22,394 INFO L225 Difference]: With dead ends: 586 [2020-07-21 22:58:22,395 INFO L226 Difference]: Without dead ends: 584 [2020-07-21 22:58:22,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:58:22,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-07-21 22:58:22,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2020-07-21 22:58:22,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-07-21 22:58:22,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 784 transitions. [2020-07-21 22:58:22,429 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 784 transitions. Word has length 110 [2020-07-21 22:58:22,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:22,432 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 784 transitions. [2020-07-21 22:58:22,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 22:58:22,433 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 784 transitions. [2020-07-21 22:58:22,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-07-21 22:58:22,436 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:22,437 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:58:22,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:22,652 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:22,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:22,653 INFO L82 PathProgramCache]: Analyzing trace with hash 52272842, now seen corresponding path program 1 times [2020-07-21 22:58:22,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:22,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041643949] [2020-07-21 22:58:22,655 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:22,797 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:58:22,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:22,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 22:58:22,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:22,896 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:58:22,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:58:22,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041643949] [2020-07-21 22:58:22,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:58:22,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 22:58:22,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925253161] [2020-07-21 22:58:22,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 22:58:22,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:22,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 22:58:22,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 22:58:22,910 INFO L87 Difference]: Start difference. First operand 584 states and 784 transitions. Second operand 5 states. [2020-07-21 22:58:23,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:23,947 INFO L93 Difference]: Finished difference Result 1472 states and 2014 transitions. [2020-07-21 22:58:23,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:58:23,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2020-07-21 22:58:23,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:23,958 INFO L225 Difference]: With dead ends: 1472 [2020-07-21 22:58:23,958 INFO L226 Difference]: Without dead ends: 894 [2020-07-21 22:58:23,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:58:23,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-07-21 22:58:23,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 880. [2020-07-21 22:58:23,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-07-21 22:58:24,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1114 transitions. [2020-07-21 22:58:24,001 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1114 transitions. Word has length 162 [2020-07-21 22:58:24,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:24,002 INFO L479 AbstractCegarLoop]: Abstraction has 880 states and 1114 transitions. [2020-07-21 22:58:24,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 22:58:24,002 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1114 transitions. [2020-07-21 22:58:24,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-07-21 22:58:24,006 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:24,007 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] [2020-07-21 22:58:24,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:24,220 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:24,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:24,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1027116093, now seen corresponding path program 1 times [2020-07-21 22:58:24,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:24,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647684739] [2020-07-21 22:58:24,222 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:24,346 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:58:24,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:24,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:58:24,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:58:24,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:58:24,548 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:58:24,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1647684739] [2020-07-21 22:58:24,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:58:24,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:58:24,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948121272] [2020-07-21 22:58:24,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:58:24,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:24,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:58:24,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:58:24,553 INFO L87 Difference]: Start difference. First operand 880 states and 1114 transitions. Second operand 7 states. [2020-07-21 22:58:25,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:25,961 INFO L93 Difference]: Finished difference Result 2352 states and 3091 transitions. [2020-07-21 22:58:25,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 22:58:25,963 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 192 [2020-07-21 22:58:25,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:25,976 INFO L225 Difference]: With dead ends: 2352 [2020-07-21 22:58:25,977 INFO L226 Difference]: Without dead ends: 1478 [2020-07-21 22:58:25,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 379 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:58:25,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2020-07-21 22:58:26,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1474. [2020-07-21 22:58:26,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2020-07-21 22:58:26,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 1882 transitions. [2020-07-21 22:58:26,040 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 1882 transitions. Word has length 192 [2020-07-21 22:58:26,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:26,041 INFO L479 AbstractCegarLoop]: Abstraction has 1474 states and 1882 transitions. [2020-07-21 22:58:26,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:58:26,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 1882 transitions. [2020-07-21 22:58:26,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-07-21 22:58:26,049 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:26,049 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:58:26,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:26,265 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:26,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:26,266 INFO L82 PathProgramCache]: Analyzing trace with hash 2063499112, now seen corresponding path program 1 times [2020-07-21 22:58:26,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:26,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1003088049] [2020-07-21 22:58:26,267 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:26,350 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:58:26,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:26,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 22:58:26,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:26,427 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-21 22:58:26,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:58:26,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1003088049] [2020-07-21 22:58:26,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:58:26,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 22:58:26,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927441648] [2020-07-21 22:58:26,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 22:58:26,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:26,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 22:58:26,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 22:58:26,430 INFO L87 Difference]: Start difference. First operand 1474 states and 1882 transitions. Second operand 5 states. [2020-07-21 22:58:27,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:27,452 INFO L93 Difference]: Finished difference Result 3119 states and 3991 transitions. [2020-07-21 22:58:27,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:58:27,457 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2020-07-21 22:58:27,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:27,468 INFO L225 Difference]: With dead ends: 3119 [2020-07-21 22:58:27,469 INFO L226 Difference]: Without dead ends: 1651 [2020-07-21 22:58:27,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:58:27,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2020-07-21 22:58:27,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1490. [2020-07-21 22:58:27,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-07-21 22:58:27,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 1908 transitions. [2020-07-21 22:58:27,548 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 1908 transitions. Word has length 209 [2020-07-21 22:58:27,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:27,549 INFO L479 AbstractCegarLoop]: Abstraction has 1490 states and 1908 transitions. [2020-07-21 22:58:27,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 22:58:27,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 1908 transitions. [2020-07-21 22:58:27,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-07-21 22:58:27,561 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:27,561 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:58:27,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:27,776 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:27,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:27,777 INFO L82 PathProgramCache]: Analyzing trace with hash 38552933, now seen corresponding path program 1 times [2020-07-21 22:58:27,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:27,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308338052] [2020-07-21 22:58:27,778 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:27,892 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:58:27,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:27,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:58:27,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:27,921 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 22:58:27,921 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:58:28,004 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 285 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-21 22:58:28,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:58:28,085 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:28,086 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:28,089 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 22:58:28,089 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:28,212 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 171 proven. 82 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-21 22:58:28,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308338052] [2020-07-21 22:58:28,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:58:28,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:58:28,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519428207] [2020-07-21 22:58:28,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:58:28,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:28,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:58:28,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:58:28,215 INFO L87 Difference]: Start difference. First operand 1490 states and 1908 transitions. Second operand 6 states. [2020-07-21 22:58:29,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:29,345 INFO L93 Difference]: Finished difference Result 3161 states and 4183 transitions. [2020-07-21 22:58:29,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:58:29,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 279 [2020-07-21 22:58:29,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:29,360 INFO L225 Difference]: With dead ends: 3161 [2020-07-21 22:58:29,360 INFO L226 Difference]: Without dead ends: 1820 [2020-07-21 22:58:29,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 554 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:58:29,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2020-07-21 22:58:29,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1792. [2020-07-21 22:58:29,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1792 states. [2020-07-21 22:58:29,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2143 transitions. [2020-07-21 22:58:29,441 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2143 transitions. Word has length 279 [2020-07-21 22:58:29,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:29,442 INFO L479 AbstractCegarLoop]: Abstraction has 1792 states and 2143 transitions. [2020-07-21 22:58:29,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:58:29,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2143 transitions. [2020-07-21 22:58:29,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-07-21 22:58:29,448 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:29,449 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, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:58:29,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:29,665 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:29,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:29,666 INFO L82 PathProgramCache]: Analyzing trace with hash 879324746, now seen corresponding path program 1 times [2020-07-21 22:58:29,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:29,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155672105] [2020-07-21 22:58:29,667 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:29,762 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:58:29,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:29,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-21 22:58:29,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:29,990 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-07-21 22:58:29,991 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 22:58:29,992 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 22:58:29,995 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 22:58:29,996 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 22:58:29,997 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 22:58:29,999 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 22:58:30,000 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 22:58:30,263 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 303 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-21 22:58:30,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:58:30,573 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:58:30,574 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:58:30,863 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 180 proven. 82 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-07-21 22:58:30,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155672105] [2020-07-21 22:58:30,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:58:30,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 15 [2020-07-21 22:58:30,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526563790] [2020-07-21 22:58:30,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-21 22:58:30,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:30,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-21 22:58:30,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-07-21 22:58:30,866 INFO L87 Difference]: Start difference. First operand 1792 states and 2143 transitions. Second operand 15 states. [2020-07-21 22:58:32,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:32,459 INFO L93 Difference]: Finished difference Result 3639 states and 4449 transitions. [2020-07-21 22:58:32,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 22:58:32,463 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 288 [2020-07-21 22:58:32,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:32,476 INFO L225 Difference]: With dead ends: 3639 [2020-07-21 22:58:32,476 INFO L226 Difference]: Without dead ends: 1937 [2020-07-21 22:58:32,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2020-07-21 22:58:32,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2020-07-21 22:58:32,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1794. [2020-07-21 22:58:32,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1794 states. [2020-07-21 22:58:32,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2141 transitions. [2020-07-21 22:58:32,538 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2141 transitions. Word has length 288 [2020-07-21 22:58:32,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:32,539 INFO L479 AbstractCegarLoop]: Abstraction has 1794 states and 2141 transitions. [2020-07-21 22:58:32,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-21 22:58:32,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2141 transitions. [2020-07-21 22:58:32,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-07-21 22:58:32,546 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:32,547 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:58:32,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:32,761 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:32,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:32,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1719608750, now seen corresponding path program 1 times [2020-07-21 22:58:32,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:32,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103495599] [2020-07-21 22:58:32,762 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:32,932 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:58:32,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:32,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 22:58:32,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:32,999 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:58:33,004 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:58:33,005 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:58:33,015 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 22:58:33,018 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 22:58:33,019 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:58:33,022 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 22:58:33,025 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:58:55,163 WARN L193 SmtUtils]: Spent 22.08 s on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-07-21 22:58:55,193 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 22:58:55,295 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-07-21 22:58:55,581 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 312 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-21 22:58:55,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:58:55,707 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 22:58:55,891 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:55,892 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:58:55,892 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:58:55,893 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:58:55,894 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:58:55,896 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:58:55,897 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:58:55,898 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:58:55,899 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:58:55,901 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:55,902 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:58:55,902 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:58:55,904 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:58:55,905 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:58:55,907 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:55,908 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:58:55,908 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:58:55,909 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:58:55,911 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:58:55,912 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:58:55,913 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:58:55,914 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:58:55,916 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:55,917 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:58:55,918 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:58:55,919 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:58:55,920 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:58:55,921 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:58:55,922 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:58:55,923 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:59:02,969 WARN L193 SmtUtils]: Spent 6.92 s on a formula simplification. DAG size of input: 67 DAG size of output: 25 [2020-07-21 22:59:02,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103495599] [2020-07-21 22:59:02,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 22:59:02,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-21 22:59:02,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049473851] [2020-07-21 22:59:02,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 22:59:02,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:59:02,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 22:59:02,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-07-21 22:59:02,974 INFO L87 Difference]: Start difference. First operand 1794 states and 2141 transitions. Second operand 9 states. [2020-07-21 23:02:21,887 WARN L193 SmtUtils]: Spent 21.38 s on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2020-07-21 23:02:28,524 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2020-07-21 23:02:41,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:02:41,046 INFO L93 Difference]: Finished difference Result 4919 states and 6135 transitions. [2020-07-21 23:02:41,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-21 23:02:41,049 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 324 [2020-07-21 23:02:41,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:02:41,066 INFO L225 Difference]: With dead ends: 4919 [2020-07-21 23:02:41,066 INFO L226 Difference]: Without dead ends: 3274 [2020-07-21 23:02:41,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 515 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 51.4s TimeCoverageRelationStatistics Valid=223, Invalid=533, Unknown=0, NotChecked=0, Total=756 [2020-07-21 23:02:41,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2020-07-21 23:02:41,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 3250. [2020-07-21 23:02:41,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3250 states. [2020-07-21 23:02:41,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3250 states to 3250 states and 3949 transitions. [2020-07-21 23:02:41,182 INFO L78 Accepts]: Start accepts. Automaton has 3250 states and 3949 transitions. Word has length 324 [2020-07-21 23:02:41,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:02:41,183 INFO L479 AbstractCegarLoop]: Abstraction has 3250 states and 3949 transitions. [2020-07-21 23:02:41,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 23:02:41,184 INFO L276 IsEmpty]: Start isEmpty. Operand 3250 states and 3949 transitions. [2020-07-21 23:02:41,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-07-21 23:02:41,194 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:02:41,195 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:02:41,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:02:41,409 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:02:41,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:02:41,409 INFO L82 PathProgramCache]: Analyzing trace with hash -885245467, now seen corresponding path program 1 times [2020-07-21 23:02:41,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:02:41,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829559821] [2020-07-21 23:02:41,410 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:02:41,617 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:02:41,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:02:41,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 23:02:41,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:02:41,717 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-07-21 23:02:41,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:02:41,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829559821] [2020-07-21 23:02:41,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:02:41,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 23:02:41,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701726323] [2020-07-21 23:02:41,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 23:02:41,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:02:41,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 23:02:41,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 23:02:41,719 INFO L87 Difference]: Start difference. First operand 3250 states and 3949 transitions. Second operand 3 states. [2020-07-21 23:02:43,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:02:43,299 INFO L93 Difference]: Finished difference Result 6351 states and 7741 transitions. [2020-07-21 23:02:43,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 23:02:43,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 343 [2020-07-21 23:02:43,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:02:43,319 INFO L225 Difference]: With dead ends: 6351 [2020-07-21 23:02:43,319 INFO L226 Difference]: Without dead ends: 3250 [2020-07-21 23:02:43,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 23:02:43,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2020-07-21 23:02:43,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 2964. [2020-07-21 23:02:43,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2964 states. [2020-07-21 23:02:43,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 3512 transitions. [2020-07-21 23:02:43,423 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 3512 transitions. Word has length 343 [2020-07-21 23:02:43,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:02:43,423 INFO L479 AbstractCegarLoop]: Abstraction has 2964 states and 3512 transitions. [2020-07-21 23:02:43,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 23:02:43,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 3512 transitions. [2020-07-21 23:02:43,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-07-21 23:02:43,436 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:02:43,437 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] [2020-07-21 23:02:43,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:02:43,652 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:02:43,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:02:43,653 INFO L82 PathProgramCache]: Analyzing trace with hash -924465415, now seen corresponding path program 1 times [2020-07-21 23:02:43,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:02:43,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641505831] [2020-07-21 23:02:43,655 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:02:43,924 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:02:43,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:02:43,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 23:02:43,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:02:43,949 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 23:02:43,950 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 23:02:43,951 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:02:43,952 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 23:02:43,953 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:02:44,233 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-07-21 23:02:44,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:02:44,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1641505831] [2020-07-21 23:02:44,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:02:44,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 23:02:44,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077223118] [2020-07-21 23:02:44,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 23:02:44,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:02:44,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 23:02:44,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 23:02:44,235 INFO L87 Difference]: Start difference. First operand 2964 states and 3512 transitions. Second operand 3 states. [2020-07-21 23:02:47,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:02:47,087 INFO L93 Difference]: Finished difference Result 6929 states and 8362 transitions. [2020-07-21 23:02:47,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 23:02:47,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 349 [2020-07-21 23:02:47,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:02:47,091 INFO L225 Difference]: With dead ends: 6929 [2020-07-21 23:02:47,091 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 23:02:47,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 23:02:47,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 23:02:47,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 23:02:47,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 23:02:47,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 23:02:47,108 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 349 [2020-07-21 23:02:47,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:02:47,108 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 23:02:47,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 23:02:47,108 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 23:02:47,108 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 23:02:47,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:02:47,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 23:02:47,922 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 158 [2020-07-21 23:02:48,046 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 158 [2020-07-21 23:02:48,272 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 31 [2020-07-21 23:02:50,058 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 191 DAG size of output: 53 [2020-07-21 23:02:50,168 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 16 [2020-07-21 23:02:51,483 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 173 DAG size of output: 47 [2020-07-21 23:02:52,756 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 173 DAG size of output: 47 [2020-07-21 23:02:52,761 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 23:02:52,761 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (or (< 7 ~a19~0) (< |old(~a19~0)| 8)) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-21 23:02:52,762 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 23:02:52,762 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 23:02:52,762 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,762 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,762 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,762 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,762 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,762 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,763 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 23:02:52,763 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 23:02:52,763 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 23:02:52,763 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 23:02:52,764 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 23:02:52,764 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 23:02:52,764 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 23:02:52,764 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 23:02:52,764 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 23:02:52,765 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 23:02:52,766 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 23:02:52,766 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,766 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,766 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,766 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,766 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,766 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 23:02:52,766 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 23:02:52,767 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 23:02:52,768 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 23:02:52,768 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 23:02:52,768 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 23:02:52,769 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 23:02:52,769 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 23:02:52,769 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 23:02:52,769 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 23:02:52,769 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 23:02:52,769 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 23:02:52,769 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 23:02:52,769 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2020-07-21 23:02:52,770 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 23:02:52,770 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,770 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,770 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,770 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,770 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,770 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 23:02:52,771 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 23:02:52,771 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 23:02:52,772 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 23:02:52,772 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 23:02:52,772 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 23:02:52,772 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 23:02:52,772 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 23:02:52,772 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 23:02:52,773 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 23:02:52,773 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,773 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,773 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,776 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,776 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,776 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 23:02:52,776 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 23:02:52,776 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 23:02:52,776 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 23:02:52,776 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 23:02:52,776 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 23:02:52,777 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 23:02:52,777 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 23:02:52,777 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 23:02:52,777 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 23:02:52,778 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 23:02:52,778 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 23:02:52,778 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 23:02:52,778 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,779 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,779 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,779 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,779 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,779 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 23:02:52,779 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 23:02:52,779 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 23:02:52,779 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 23:02:52,779 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 23:02:52,780 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 23:02:52,780 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 23:02:52,780 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 23:02:52,780 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 23:02:52,780 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,780 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,780 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,780 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,780 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,781 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,781 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,781 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 23:02:52,781 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 23:02:52,781 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 23:02:52,781 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 23:02:52,781 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 23:02:52,781 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 23:02:52,781 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 23:02:52,782 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 23:02:52,782 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 23:02:52,782 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 23:02:52,782 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 23:02:52,783 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 23:02:52,784 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 23:02:52,784 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,785 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,785 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,785 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,785 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 23:02:52,785 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,785 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,785 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 23:02:52,785 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 23:02:52,786 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 23:02:52,786 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 23:02:52,786 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 23:02:52,786 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 23:02:52,786 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 23:02:52,787 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 23:02:52,788 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 23:02:52,788 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 23:02:52,788 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 23:02:52,788 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 23:02:52,788 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 23:02:52,788 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,788 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,788 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,788 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,789 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,789 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,789 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 23:02:52,789 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 23:02:52,789 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 23:02:52,789 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 23:02:52,789 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 23:02:52,789 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 23:02:52,789 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 23:02:52,790 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 23:02:52,790 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 23:02:52,790 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 23:02:52,790 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 23:02:52,790 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse2 (not (<= |old(~a19~0)| 9))) (.cse0 (not (= 0 ~a12~0))) (.cse1 (not (= 14 ~a4~0))) (.cse3 (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)))) (and (or (not (< 7 |old(~a19~0)|)) .cse0 .cse1 .cse2 .cse3) (or (forall ((v_~a1~0_430 Int)) (let ((.cse4 (mod (+ v_~a1~0_430 39) 89))) (or (not (< 38 v_~a1~0_430)) (not (<= v_~a1~0_430 218)) (not (= 0 .cse4)) (not (<= |old(~a1~0)| (+ .cse4 206)))))) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 (not (<= |old(~a10~0)| 1))))) [2020-07-21 23:02:52,790 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 23:02:52,790 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 23:02:52,790 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 23:02:52,791 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,791 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,793 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,793 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,793 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,793 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,793 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 23:02:52,793 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 23:02:52,793 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 23:02:52,794 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 23:02:52,794 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 23:02:52,794 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 23:02:52,794 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 23:02:52,794 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 23:02:52,794 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 23:02:52,794 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 23:02:52,794 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 23:02:52,794 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 23:02:52,796 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 23:02:52,796 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,796 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,797 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,797 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,797 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,797 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,797 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 23:02:52,797 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 23:02:52,797 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 23:02:52,797 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 23:02:52,797 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 23:02:52,798 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 23:02:52,798 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 23:02:52,798 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 23:02:52,798 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 23:02:52,798 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 23:02:52,798 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 23:02:52,798 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 23:02:52,798 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,798 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,799 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,799 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,799 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,799 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:02:52,799 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 23:02:52,799 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 23:02:52,799 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 23:02:52,799 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 23:02:52,799 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 23:02:52,800 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 23:02:52,800 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 23:02:52,800 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 23:02:52,800 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 23:02:52,800 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 23:02:52,800 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 23:02:52,800 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 23:02:52,800 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 23:02:52,801 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= 14 ~a4~0) (<= ~a19~0 9) (= 0 ~a12~0) (< 7 ~a19~0) (= 23 ~a1~0)) [2020-07-21 23:02:52,801 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 23:02:52,801 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 23:02:52,801 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< 7 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-21 23:02:52,801 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 23:02:52,801 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (<= ~a10~0 1) (not (<= |old(~a10~0)| 0)) (not (< 7 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (and .cse0 (< 7 ~a19~0)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and .cse0 (exists ((v_~a1~0_430 Int)) (let ((.cse1 (mod (+ v_~a1~0_430 39) 89))) (and (<= v_~a1~0_430 218) (<= ~a1~0 (+ .cse1 206)) (< 38 v_~a1~0_430) (= 0 .cse1))))))) [2020-07-21 23:02:52,802 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 23:02:52,802 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 23:02:52,802 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (<= ~a10~0 1) (not (<= |old(~a10~0)| 0)) (not (< 7 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (and .cse0 (< 7 ~a19~0)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and .cse0 (exists ((v_~a1~0_430 Int)) (let ((.cse1 (mod (+ v_~a1~0_430 39) 89))) (and (<= v_~a1~0_430 218) (<= ~a1~0 (+ .cse1 206)) (< 38 v_~a1~0_430) (= 0 .cse1))))))) [2020-07-21 23:02:52,802 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 23:02:52,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 23:02:52,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 23:02:52,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 23:02:52,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 23:02:52,834 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 23:02:52,835 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 23:02:52,835 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 23:02:52,835 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 23:02:52,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:02:52 BoogieIcfgContainer [2020-07-21 23:02:52,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 23:02:52,840 INFO L168 Benchmark]: Toolchain (without parser) took 275391.74 ms. Allocated memory was 138.9 MB in the beginning and 496.5 MB in the end (delta: 357.6 MB). Free memory was 102.9 MB in the beginning and 189.6 MB in the end (delta: -86.7 MB). Peak memory consumption was 375.0 MB. Max. memory is 7.1 GB. [2020-07-21 23:02:52,841 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 23:02:52,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 761.22 ms. Allocated memory was 138.9 MB in the beginning and 208.1 MB in the end (delta: 69.2 MB). Free memory was 102.4 MB in the beginning and 174.4 MB in the end (delta: -71.9 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. [2020-07-21 23:02:52,842 INFO L168 Benchmark]: Boogie Preprocessor took 106.00 ms. Allocated memory is still 208.1 MB. Free memory was 174.4 MB in the beginning and 170.0 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-21 23:02:52,843 INFO L168 Benchmark]: RCFGBuilder took 1414.54 ms. Allocated memory was 208.1 MB in the beginning and 238.0 MB in the end (delta: 29.9 MB). Free memory was 170.0 MB in the beginning and 182.5 MB in the end (delta: -12.6 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. [2020-07-21 23:02:52,844 INFO L168 Benchmark]: TraceAbstraction took 273102.63 ms. Allocated memory was 238.0 MB in the beginning and 496.5 MB in the end (delta: 258.5 MB). Free memory was 181.1 MB in the beginning and 189.6 MB in the end (delta: -8.5 MB). Peak memory consumption was 354.1 MB. Max. memory is 7.1 GB. [2020-07-21 23:02:52,847 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 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 761.22 ms. Allocated memory was 138.9 MB in the beginning and 208.1 MB in the end (delta: 69.2 MB). Free memory was 102.4 MB in the beginning and 174.4 MB in the end (delta: -71.9 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.00 ms. Allocated memory is still 208.1 MB. Free memory was 174.4 MB in the beginning and 170.0 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1414.54 ms. Allocated memory was 208.1 MB in the beginning and 238.0 MB in the end (delta: 29.9 MB). Free memory was 170.0 MB in the beginning and 182.5 MB in the end (delta: -12.6 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 273102.63 ms. Allocated memory was 238.0 MB in the beginning and 496.5 MB in the end (delta: 258.5 MB). Free memory was 181.1 MB in the beginning and 189.6 MB in the end (delta: -8.5 MB). Peak memory consumption was 354.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] * 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 [2020-07-21 23:02:52,854 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 23:02:52,854 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 23:02:52,854 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 23:02:52,854 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 23:02:52,855 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 23:02:52,855 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 23:02:52,855 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 23:02:52,856 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] Derived loop invariant: (((((((a10 <= 1 || !(\old(a10) <= 0)) || !(7 < \old(a19))) || !(23 == \old(a1))) || !(0 == a12)) || (a19 <= 9 && 7 < a19)) || !(14 == a4)) || !(\old(a19) <= 9)) || (a19 <= 9 && (\exists v_~a1~0_430 : int :: ((v_~a1~0_430 <= 218 && a1 <= (v_~a1~0_430 + 39) % 89 + 206) && 38 < v_~a1~0_430) && 0 == (v_~a1~0_430 + 39) % 89)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 267.5s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 230.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 363 SDtfs, 3639 SDslu, 316 SDs, 0 SdLazy, 7294 SolverSat, 1746 SolverUnsat, 83 SolverUnknown, 0 SolverNotchecked, 200.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3402 GetRequests, 3317 SyntacticMatches, 4 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 52.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3250occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 660 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 127 PreInvPairs, 185 NumberOfFragments, 315 HoareAnnotationTreeSize, 127 FomulaSimplifications, 4700 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 12623 FormulaSimplificationTreeSizeReductionInter, 4.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 32.4s InterpolantComputationTime, 2296 NumberOfCodeBlocks, 1899 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 3151 ConstructedInterpolants, 42 QuantifiedInterpolants, 3815781 SizeOfPredicates, 23 NumberOfNonLiveVariables, 3445 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 2684/2890 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...