/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/Problem02_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:53:53,415 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 22:53:53,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:53:53,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:53:53,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:53:53,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:53:53,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:53:53,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:53:53,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:53:53,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:53:53,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:53:53,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:53:53,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:53:53,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:53:53,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:53:53,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:53:53,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:53:53,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:53:53,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:53:53,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:53:53,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:53:53,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:53:53,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:53:53,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:53:53,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:53:53,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:53:53,464 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 22:53:53,479 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:53:53,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:53:53,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:53:53,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:53:53,481 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:53:53,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:53:53,481 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:53:53,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:53:53,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:53:53,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:53:53,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:53:53,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:53:53,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:53:53,482 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:53:53,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:53:53,483 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:53:53,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:53:53,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:53:53,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:53:53,484 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:53:53,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:53:53,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:53:53,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:53:53,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:53:53,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:53:53,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:53:53,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:53:53,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:53:53,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:53:53,486 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 22:53:53,761 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:53:53,774 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:53:53,777 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:53:53,778 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:53:53,779 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:53:53,780 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label01.c [2020-07-21 22:53:53,842 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eea21572b/49f153531cd748ab93d14e4a593cc0e6/FLAGa39b19784 [2020-07-21 22:53:54,361 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:53:54,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label01.c [2020-07-21 22:53:54,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eea21572b/49f153531cd748ab93d14e4a593cc0e6/FLAGa39b19784 [2020-07-21 22:53:54,710 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eea21572b/49f153531cd748ab93d14e4a593cc0e6 [2020-07-21 22:53:54,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:53:54,725 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:53:54,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:53:54,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:53:54,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:53:54,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:53:54" (1/1) ... [2020-07-21 22:53:54,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@288eceee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:54, skipping insertion in model container [2020-07-21 22:53:54,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:53:54" (1/1) ... [2020-07-21 22:53:54,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:53:54,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:53:55,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:53:55,378 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:53:55,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:53:55,571 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:53:55,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:55 WrapperNode [2020-07-21 22:53:55,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:53:55,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:53:55,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:53:55,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:53:55,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:55" (1/1) ... [2020-07-21 22:53:55,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:55" (1/1) ... [2020-07-21 22:53:55,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:55" (1/1) ... [2020-07-21 22:53:55,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:55" (1/1) ... [2020-07-21 22:53:55,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:55" (1/1) ... [2020-07-21 22:53:55,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:55" (1/1) ... [2020-07-21 22:53:55,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:55" (1/1) ... [2020-07-21 22:53:55,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:53:55,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:53:55,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:53:55,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:53:55,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:55" (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 22:53:55,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:53:55,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:53:55,741 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:53:55,741 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:53:55,741 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:53:55,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:53:55,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:53:55,742 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:53:55,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:53:55,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:53:55,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:53:56,870 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:53:56,871 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:53:56,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:53:56 BoogieIcfgContainer [2020-07-21 22:53:56,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:53:56,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:53:56,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:53:56,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:53:56,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:53:54" (1/3) ... [2020-07-21 22:53:56,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a8c595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:53:56, skipping insertion in model container [2020-07-21 22:53:56,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:55" (2/3) ... [2020-07-21 22:53:56,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a8c595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:53:56, skipping insertion in model container [2020-07-21 22:53:56,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:53:56" (3/3) ... [2020-07-21 22:53:56,889 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label01.c [2020-07-21 22:53:56,900 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:53:56,909 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:53:56,925 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:53:56,959 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:53:56,959 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:53:56,959 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:53:56,959 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:53:56,960 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:53:56,960 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:53:56,960 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:53:56,960 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:53:56,980 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 22:53:56,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-21 22:53:56,993 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:53:56,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:53:56,994 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:53:56,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:53:56,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1511676745, now seen corresponding path program 1 times [2020-07-21 22:53:57,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:53:57,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435361994] [2020-07-21 22:53:57,009 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 22:53:57,178 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:53:57,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:53:57,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 22:53:57,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:53:57,696 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:53:57,706 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:53:57,708 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:53:57,818 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 22:53:57,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:53:57,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435361994] [2020-07-21 22:53:57,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:53:57,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 22:53:57,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323467970] [2020-07-21 22:53:57,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 22:53:57,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:53:57,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 22:53:57,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:53:57,850 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 22:53:59,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:53:59,055 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 22:53:59,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:53:59,057 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 119 [2020-07-21 22:53:59,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:53:59,071 INFO L225 Difference]: With dead ends: 527 [2020-07-21 22:53:59,072 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 22:53:59,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 22:53:59,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 22:53:59,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 22:53:59,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 22:53:59,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 22:53:59,140 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 119 [2020-07-21 22:53:59,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:53:59,141 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 22:53:59,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 22:53:59,141 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 22:53:59,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-21 22:53:59,145 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:53:59,146 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:53:59,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:53:59,359 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:53:59,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:53:59,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1275927352, now seen corresponding path program 1 times [2020-07-21 22:53:59,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:53:59,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948896865] [2020-07-21 22:53:59,362 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 22:53:59,460 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:53:59,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:53:59,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 22:53:59,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:53:59,995 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:53:59,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:00,393 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 22:54:00,396 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:54:00,399 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:54:00,402 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:54:00,404 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:54:00,436 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 22:54:00,438 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:54:00,494 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:54:00,569 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:54:00,691 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:54:00,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [948896865] [2020-07-21 22:54:00,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:00,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 22:54:00,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149717581] [2020-07-21 22:54:00,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 22:54:00,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:00,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 22:54:00,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 22:54:00,696 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 22:54:01,817 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:54:03,032 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 22:54:04,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:04,714 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 22:54:04,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 22:54:04,716 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 128 [2020-07-21 22:54:04,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:04,728 INFO L225 Difference]: With dead ends: 738 [2020-07-21 22:54:04,728 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 22:54:04,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 233 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 22:54:04,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 22:54:04,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 22:54:04,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 22:54:04,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 22:54:04,787 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 128 [2020-07-21 22:54:04,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:04,788 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 22:54:04,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 22:54:04,788 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 22:54:04,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-07-21 22:54:04,791 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:04,792 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:04,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:04,998 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:04,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:04,999 INFO L82 PathProgramCache]: Analyzing trace with hash 2065608517, now seen corresponding path program 1 times [2020-07-21 22:54:05,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:05,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1025139808] [2020-07-21 22:54:05,001 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 22:54:05,079 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:54:05,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:05,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 22:54:05,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:05,107 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 22:54:05,107 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:54:05,128 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:54:05,144 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:54:05,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:05,247 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:54:05,248 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:54:05,276 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:54:05,333 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:54:05,337 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:54:05,362 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:54:05,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1025139808] [2020-07-21 22:54:05,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:05,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:54:05,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979796485] [2020-07-21 22:54:05,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:54:05,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:05,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:54:05,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:54:05,366 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 22:54:06,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:06,998 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 22:54:06,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 22:54:06,998 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2020-07-21 22:54:06,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:07,004 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 22:54:07,005 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 22:54:07,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 279 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-07-21 22:54:07,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 22:54:07,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 22:54:07,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 22:54:07,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1271 transitions. [2020-07-21 22:54:07,060 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1271 transitions. Word has length 140 [2020-07-21 22:54:07,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:07,061 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1271 transitions. [2020-07-21 22:54:07,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:54:07,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1271 transitions. [2020-07-21 22:54:07,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-21 22:54:07,066 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:07,067 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:07,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:07,280 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:07,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:07,281 INFO L82 PathProgramCache]: Analyzing trace with hash -196294322, now seen corresponding path program 1 times [2020-07-21 22:54:07,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:07,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942085265] [2020-07-21 22:54:07,282 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 22:54:07,387 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:54:07,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:07,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:54:07,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:07,428 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 22:54:07,428 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:54:07,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942085265] [2020-07-21 22:54:07,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:54:07,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:54:07,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538252642] [2020-07-21 22:54:07,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:54:07,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:07,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:54:07,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:54:07,431 INFO L87 Difference]: Start difference. First operand 1015 states and 1271 transitions. Second operand 3 states. [2020-07-21 22:54:08,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:08,084 INFO L93 Difference]: Finished difference Result 2320 states and 3002 transitions. [2020-07-21 22:54:08,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:54:08,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-07-21 22:54:08,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:08,097 INFO L225 Difference]: With dead ends: 2320 [2020-07-21 22:54:08,097 INFO L226 Difference]: Without dead ends: 1311 [2020-07-21 22:54:08,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 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 22:54:08,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2020-07-21 22:54:08,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1307. [2020-07-21 22:54:08,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2020-07-21 22:54:08,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1677 transitions. [2020-07-21 22:54:08,163 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1677 transitions. Word has length 161 [2020-07-21 22:54:08,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:08,166 INFO L479 AbstractCegarLoop]: Abstraction has 1307 states and 1677 transitions. [2020-07-21 22:54:08,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:54:08,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1677 transitions. [2020-07-21 22:54:08,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-21 22:54:08,174 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:08,175 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:08,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:08,385 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:08,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:08,386 INFO L82 PathProgramCache]: Analyzing trace with hash 808674673, now seen corresponding path program 1 times [2020-07-21 22:54:08,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:08,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341530416] [2020-07-21 22:54:08,387 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 22:54:08,484 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:54:08,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:08,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:54:08,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:08,528 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:54:08,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:08,598 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:54:08,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341530416] [2020-07-21 22:54:08,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:08,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 22:54:08,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041547076] [2020-07-21 22:54:08,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:54:08,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:08,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:54:08,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:54:08,601 INFO L87 Difference]: Start difference. First operand 1307 states and 1677 transitions. Second operand 8 states. [2020-07-21 22:54:09,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:09,564 INFO L93 Difference]: Finished difference Result 3180 states and 4224 transitions. [2020-07-21 22:54:09,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:54:09,565 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 164 [2020-07-21 22:54:09,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:09,573 INFO L225 Difference]: With dead ends: 3180 [2020-07-21 22:54:09,573 INFO L226 Difference]: Without dead ends: 1426 [2020-07-21 22:54:09,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:54:09,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2020-07-21 22:54:09,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1426. [2020-07-21 22:54:09,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2020-07-21 22:54:09,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1745 transitions. [2020-07-21 22:54:09,629 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1745 transitions. Word has length 164 [2020-07-21 22:54:09,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:09,630 INFO L479 AbstractCegarLoop]: Abstraction has 1426 states and 1745 transitions. [2020-07-21 22:54:09,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:54:09,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1745 transitions. [2020-07-21 22:54:09,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-21 22:54:09,645 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:09,645 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:09,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:09,860 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:09,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:09,860 INFO L82 PathProgramCache]: Analyzing trace with hash -897688888, now seen corresponding path program 1 times [2020-07-21 22:54:09,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:09,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343844528] [2020-07-21 22:54:09,861 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 22:54:09,950 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:54:09,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:09,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:54:09,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:09,990 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:54:09,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:54:10,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343844528] [2020-07-21 22:54:10,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:10,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:54:10,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874525803] [2020-07-21 22:54:10,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:54:10,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:10,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:54:10,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:54:10,062 INFO L87 Difference]: Start difference. First operand 1426 states and 1745 transitions. Second operand 7 states. [2020-07-21 22:54:10,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:10,906 INFO L93 Difference]: Finished difference Result 3441 states and 4492 transitions. [2020-07-21 22:54:10,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:54:10,906 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-07-21 22:54:10,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:10,944 INFO L225 Difference]: With dead ends: 3441 [2020-07-21 22:54:10,944 INFO L226 Difference]: Without dead ends: 2075 [2020-07-21 22:54:10,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:54:10,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2020-07-21 22:54:10,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 2029. [2020-07-21 22:54:10,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2029 states. [2020-07-21 22:54:11,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 2436 transitions. [2020-07-21 22:54:11,002 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 2436 transitions. Word has length 170 [2020-07-21 22:54:11,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:11,002 INFO L479 AbstractCegarLoop]: Abstraction has 2029 states and 2436 transitions. [2020-07-21 22:54:11,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:54:11,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 2436 transitions. [2020-07-21 22:54:11,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-21 22:54:11,008 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:11,009 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, 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] [2020-07-21 22:54:11,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:11,222 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:11,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:11,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1992738691, now seen corresponding path program 1 times [2020-07-21 22:54:11,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:11,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22669295] [2020-07-21 22:54:11,224 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 22:54:11,311 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:54:11,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:11,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:54:11,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:11,360 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:54:11,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:11,428 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:54:11,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22669295] [2020-07-21 22:54:11,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:11,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:54:11,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469314194] [2020-07-21 22:54:11,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:54:11,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:11,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:54:11,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:54:11,431 INFO L87 Difference]: Start difference. First operand 2029 states and 2436 transitions. Second operand 7 states. [2020-07-21 22:54:12,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:12,720 INFO L93 Difference]: Finished difference Result 4443 states and 5397 transitions. [2020-07-21 22:54:12,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 22:54:12,721 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-07-21 22:54:12,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:12,733 INFO L225 Difference]: With dead ends: 4443 [2020-07-21 22:54:12,733 INFO L226 Difference]: Without dead ends: 2474 [2020-07-21 22:54:12,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 357 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 22:54:12,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2020-07-21 22:54:12,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2460. [2020-07-21 22:54:12,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2460 states. [2020-07-21 22:54:12,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 2725 transitions. [2020-07-21 22:54:12,844 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 2725 transitions. Word has length 181 [2020-07-21 22:54:12,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:12,844 INFO L479 AbstractCegarLoop]: Abstraction has 2460 states and 2725 transitions. [2020-07-21 22:54:12,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:54:12,845 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 2725 transitions. [2020-07-21 22:54:12,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-07-21 22:54:12,853 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:12,853 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 22:54:13,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:13,069 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:13,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:13,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1919933058, now seen corresponding path program 1 times [2020-07-21 22:54:13,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:13,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809954866] [2020-07-21 22:54:13,071 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 22:54:13,214 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:54:13,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:13,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:54:13,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:13,303 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 22:54:13,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:13,415 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 22:54:13,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809954866] [2020-07-21 22:54:13,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:13,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:54:13,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115881319] [2020-07-21 22:54:13,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:54:13,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:13,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:54:13,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:54:13,418 INFO L87 Difference]: Start difference. First operand 2460 states and 2725 transitions. Second operand 7 states. [2020-07-21 22:54:14,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:14,623 INFO L93 Difference]: Finished difference Result 5480 states and 6079 transitions. [2020-07-21 22:54:14,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:54:14,624 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 238 [2020-07-21 22:54:14,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:14,641 INFO L225 Difference]: With dead ends: 5480 [2020-07-21 22:54:14,642 INFO L226 Difference]: Without dead ends: 3080 [2020-07-21 22:54:14,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:54:14,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3080 states. [2020-07-21 22:54:14,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3080 to 3071. [2020-07-21 22:54:14,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3071 states. [2020-07-21 22:54:14,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 3323 transitions. [2020-07-21 22:54:14,748 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 3323 transitions. Word has length 238 [2020-07-21 22:54:14,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:14,749 INFO L479 AbstractCegarLoop]: Abstraction has 3071 states and 3323 transitions. [2020-07-21 22:54:14,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:54:14,750 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 3323 transitions. [2020-07-21 22:54:14,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-07-21 22:54:14,764 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:14,764 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:14,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:14,980 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:14,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:14,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1497426953, now seen corresponding path program 1 times [2020-07-21 22:54:14,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:14,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186062184] [2020-07-21 22:54:14,982 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:15,153 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:54:15,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:15,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:54:15,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:15,255 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-07-21 22:54:15,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:15,397 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 156 proven. 16 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 22:54:15,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186062184] [2020-07-21 22:54:15,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:15,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:54:15,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529396185] [2020-07-21 22:54:15,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:54:15,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:15,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:54:15,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:54:15,401 INFO L87 Difference]: Start difference. First operand 3071 states and 3323 transitions. Second operand 7 states. [2020-07-21 22:54:16,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:16,618 INFO L93 Difference]: Finished difference Result 3957 states and 4295 transitions. [2020-07-21 22:54:16,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 22:54:16,619 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 254 [2020-07-21 22:54:16,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:16,629 INFO L225 Difference]: With dead ends: 3957 [2020-07-21 22:54:16,629 INFO L226 Difference]: Without dead ends: 1686 [2020-07-21 22:54:16,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:54:16,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2020-07-21 22:54:16,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1392. [2020-07-21 22:54:16,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1392 states. [2020-07-21 22:54:16,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1478 transitions. [2020-07-21 22:54:16,690 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1478 transitions. Word has length 254 [2020-07-21 22:54:16,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:16,690 INFO L479 AbstractCegarLoop]: Abstraction has 1392 states and 1478 transitions. [2020-07-21 22:54:16,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:54:16,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1478 transitions. [2020-07-21 22:54:16,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-07-21 22:54:16,701 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:16,701 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 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] [2020-07-21 22:54:16,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:16,917 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:16,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:16,917 INFO L82 PathProgramCache]: Analyzing trace with hash 275092618, now seen corresponding path program 1 times [2020-07-21 22:54:16,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:16,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436068305] [2020-07-21 22:54:16,918 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:17,153 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:54:17,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:17,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:54:17,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:17,253 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-07-21 22:54:17,254 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:54:17,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436068305] [2020-07-21 22:54:17,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:54:17,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:54:17,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993744958] [2020-07-21 22:54:17,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:54:17,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:17,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:54:17,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:54:17,256 INFO L87 Difference]: Start difference. First operand 1392 states and 1478 transitions. Second operand 3 states. [2020-07-21 22:54:17,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:17,701 INFO L93 Difference]: Finished difference Result 2867 states and 3068 transitions. [2020-07-21 22:54:17,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:54:17,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 261 [2020-07-21 22:54:17,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:17,703 INFO L225 Difference]: With dead ends: 2867 [2020-07-21 22:54:17,703 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:54:17,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 259 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 22:54:17,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:54:17,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:54:17,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:54:17,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:54:17,709 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 261 [2020-07-21 22:54:17,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:17,709 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:54:17,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:54:17,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:54:17,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:54:17,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:17,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:54:19,533 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 151 DAG size of output: 98 [2020-07-21 22:54:20,176 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 55 [2020-07-21 22:54:20,863 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 66 [2020-07-21 22:54:20,868 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:54:20,868 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 22:54:20,868 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:54:20,868 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,869 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,869 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,869 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,869 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,869 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 22:54:20,869 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 22:54:20,870 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 22:54:20,870 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 22:54:20,870 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 22:54:20,870 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 22:54:20,870 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 22:54:20,870 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 22:54:20,870 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 22:54:20,871 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 22:54:20,871 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:54:20,871 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:54:20,871 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 22:54:20,871 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,871 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,871 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,871 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,871 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 22:54:20,871 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,871 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 22:54:20,872 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 22:54:20,872 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 22:54:20,872 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 22:54:20,872 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 22:54:20,872 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 22:54:20,872 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 22:54:20,872 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:54:20,872 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:54:20,872 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 22:54:20,872 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 22:54:20,873 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 22:54:20,873 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:54:20,873 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:54:20,873 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 22:54:20,873 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,873 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,873 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,873 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,873 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,874 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 511) no Hoare annotation was computed. [2020-07-21 22:54:20,874 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:54:20,874 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 22:54:20,874 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:54:20,874 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 22:54:20,874 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 22:54:20,874 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 22:54:20,874 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 22:54:20,875 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 22:54:20,875 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 22:54:20,875 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 22:54:20,875 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 22:54:20,875 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,875 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,875 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,875 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,875 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,876 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 22:54:20,876 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 22:54:20,876 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 22:54:20,876 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 22:54:20,876 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 22:54:20,876 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 22:54:20,876 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 22:54:20,876 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 22:54:20,876 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 22:54:20,876 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 22:54:20,876 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 22:54:20,876 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 22:54:20,877 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 22:54:20,877 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,877 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,877 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,877 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,877 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,877 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 22:54:20,877 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 22:54:20,878 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 22:54:20,878 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 22:54:20,878 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 22:54:20,878 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 22:54:20,878 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 22:54:20,878 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 22:54:20,878 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 22:54:20,878 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 22:54:20,878 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 22:54:20,878 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 22:54:20,878 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 22:54:20,878 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:54:20,878 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 22:54:20,879 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:54:20,879 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,879 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,879 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,879 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,879 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 22:54:20,879 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,879 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:54:20,879 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,879 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:54:20,879 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:54:20,879 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:54:20,879 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,880 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,880 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 22:54:20,880 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 22:54:20,880 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 22:54:20,880 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 22:54:20,880 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 22:54:20,880 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 22:54:20,880 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 22:54:20,880 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 22:54:20,881 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 22:54:20,881 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 22:54:20,881 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 22:54:20,881 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,881 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,881 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,881 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,881 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,882 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,882 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 22:54:20,882 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 22:54:20,882 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 22:54:20,882 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 22:54:20,882 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 22:54:20,882 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 22:54:20,882 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 22:54:20,883 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 22:54:20,883 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 22:54:20,883 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 22:54:20,883 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 22:54:20,883 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,883 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,883 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,883 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,884 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,884 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,884 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 22:54:20,884 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 22:54:20,884 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 22:54:20,884 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 22:54:20,884 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 22:54:20,884 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 22:54:20,884 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 22:54:20,885 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 22:54:20,885 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 22:54:20,885 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 22:54:20,885 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 22:54:20,885 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 22:54:20,885 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 22:54:20,885 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 22:54:20,885 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,885 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,886 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,886 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse14 (< ~a17~0 9)) (.cse15 (= 1 ~a25~0)) (.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (<= ~a28~0 |old(~a28~0)|)) (.cse24 (= ~a11~0 |old(~a11~0)|)) (.cse13 (= ~a19~0 |old(~a19~0)|)) (.cse1 (<= |old(~a28~0)| ~a28~0)) (.cse2 (= ~a25~0 |old(~a25~0)|))) (let ((.cse5 (not (= 8 |old(~a17~0)|))) (.cse8 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|)))) (.cse7 (= 8 ~a17~0)) (.cse21 (not (<= |old(~a28~0)| 9))) (.cse12 (= 1 ~a11~0)) (.cse18 (not (< 8 |old(~a28~0)|))) (.cse6 (<= ~a11~0 |old(~a11~0)|)) (.cse3 (not (<= |old(~a17~0)| 7))) (.cse4 (not (= 1 |old(~a19~0)|))) (.cse22 (and .cse0 .cse11 .cse24 .cse13 .cse1 .cse2)) (.cse20 (not (= 1 |old(~a11~0)|))) (.cse23 (and .cse24 .cse11 .cse13 .cse14 .cse1 .cse15)) (.cse16 (not (= 1 |old(~a25~0)|))) (.cse17 (not (< |old(~a17~0)| 9))) (.cse9 (not (= 1 ~a21~0))) (.cse10 (not (<= |old(~a11~0)| 0))) (.cse19 (not (< |old(~a28~0)| 11)))) (and (or (and .cse0 .cse1 .cse2) (not (<= 9 |old(~a28~0)|)) .cse3) (or .cse4 (not (= 10 |old(~a28~0)|)) .cse5 (and (= 1 ~a19~0) .cse6 (= 10 ~a28~0) .cse7) .cse8 .cse9 .cse10) (or .cse4 (and .cse11 .cse12 .cse13 .cse14 .cse1 .cse15) .cse16 .cse17 .cse18 .cse19 .cse20) (or .cse4 .cse5 (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) .cse8 .cse9 .cse7 .cse10) (or .cse21 .cse17 .cse22 .cse9 .cse10) (or .cse4 .cse21 .cse17 (and .cse12 (<= ~a28~0 9) .cse13 .cse14 .cse1 .cse2) .cse18 .cse20) (or .cse6 .cse3 .cse9 .cse10) (or .cse4 .cse23 .cse16 .cse17 .cse9 .cse10) (or (not (<= |old(~a28~0)| 7)) .cse17 .cse22 .cse20) (or .cse23 .cse16 .cse17 .cse9 .cse10 .cse19)))) [2020-07-21 22:54:20,886 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,886 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,886 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,886 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 22:54:20,887 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 22:54:20,887 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 22:54:20,887 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 22:54:20,887 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 22:54:20,887 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 22:54:20,887 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 22:54:20,887 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 22:54:20,887 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 22:54:20,887 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 22:54:20,888 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 22:54:20,888 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 22:54:20,888 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 22:54:20,888 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,888 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,888 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,888 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,888 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,889 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,889 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 22:54:20,889 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 22:54:20,889 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 22:54:20,889 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 22:54:20,889 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 22:54:20,889 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 22:54:20,889 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 22:54:20,889 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 22:54:20,889 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 22:54:20,890 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 22:54:20,890 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 22:54:20,890 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:54:20,890 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:54:20,890 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 22:54:20,890 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 22:54:20,890 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 22:54:20,890 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,891 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,891 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,891 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,891 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:54:20,891 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 22:54:20,891 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 22:54:20,891 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 22:54:20,891 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 22:54:20,891 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 22:54:20,892 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 22:54:20,892 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 22:54:20,892 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 22:54:20,892 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 22:54:20,892 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 22:54:20,892 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 22:54:20,892 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:54:20,892 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 22:54:20,892 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:54:20,893 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 22:54:20,893 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:54:20,893 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:54:20,893 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 22:54:20,893 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 22:54:20,893 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:54:20,893 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 22:54:20,893 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:54:20,894 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:54:20,894 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (and (= ~a11~0 |old(~a11~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= 8 ~a17~0) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 22:54:20,894 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse5 (<= ~a28~0 9)) (.cse0 (<= 9 ~a28~0)) (.cse1 (= 1 ~a19~0)) (.cse6 (= 1 ~a11~0)) (.cse2 (= ~a11~0 |old(~a11~0)|)) (.cse7 (< ~a28~0 11)) (.cse3 (< ~a17~0 9)) (.cse4 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and (<= ~a17~0 7) .cse0) (and .cse1 .cse2 .cse3 .cse4) (not (= 7 |old(~a28~0)|)) (and .cse2 .cse5 .cse3) (and .cse1 .cse6 .cse7 .cse3 .cse0 .cse4) (and .cse1 .cse6 .cse5 .cse3 .cse0) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse1 (<= ~a11~0 0) (= 10 ~a28~0) (= 8 ~a17~0)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse6 .cse3 (<= ~a28~0 7)) (and .cse2 .cse7 .cse3 .cse4))) [2020-07-21 22:54:20,894 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:54:20,894 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:54:20,895 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse5 (<= ~a28~0 9)) (.cse0 (<= 9 ~a28~0)) (.cse1 (= 1 ~a19~0)) (.cse6 (= 1 ~a11~0)) (.cse2 (= ~a11~0 |old(~a11~0)|)) (.cse7 (< ~a28~0 11)) (.cse3 (< ~a17~0 9)) (.cse4 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and (<= ~a17~0 7) .cse0) (and .cse1 .cse2 .cse3 .cse4) (not (= 7 |old(~a28~0)|)) (and .cse2 .cse5 .cse3) (and .cse1 .cse6 .cse7 .cse3 .cse0 .cse4) (and .cse1 .cse6 .cse5 .cse3 .cse0) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse1 (<= ~a11~0 0) (= 10 ~a28~0) (= 8 ~a17~0) (or (= 1 main_~input~0) (= 6 main_~input~0) (= 4 main_~input~0) (= 5 main_~input~0) (= 3 main_~input~0))) (and .cse6 .cse3 (<= ~a28~0 7)) (and .cse2 .cse7 .cse3 .cse4))) [2020-07-21 22:54:20,895 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 22:54:20,895 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 22:54:20,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:54:20 BoogieIcfgContainer [2020-07-21 22:54:20,921 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:54:20,923 INFO L168 Benchmark]: Toolchain (without parser) took 26199.37 ms. Allocated memory was 137.9 MB in the beginning and 540.0 MB in the end (delta: 402.1 MB). Free memory was 101.2 MB in the beginning and 128.4 MB in the end (delta: -27.2 MB). Peak memory consumption was 380.7 MB. Max. memory is 7.1 GB. [2020-07-21 22:54:20,924 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 22:54:20,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 845.19 ms. Allocated memory was 137.9 MB in the beginning and 205.0 MB in the end (delta: 67.1 MB). Free memory was 100.8 MB in the beginning and 170.1 MB in the end (delta: -69.3 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:54:20,926 INFO L168 Benchmark]: Boogie Preprocessor took 111.91 ms. Allocated memory is still 205.0 MB. Free memory was 170.1 MB in the beginning and 165.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 22:54:20,932 INFO L168 Benchmark]: RCFGBuilder took 1196.30 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 165.0 MB in the beginning and 180.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. [2020-07-21 22:54:20,933 INFO L168 Benchmark]: TraceAbstraction took 24039.50 ms. Allocated memory was 236.5 MB in the beginning and 540.0 MB in the end (delta: 303.6 MB). Free memory was 179.3 MB in the beginning and 128.4 MB in the end (delta: 50.8 MB). Peak memory consumption was 360.2 MB. Max. memory is 7.1 GB. [2020-07-21 22:54:20,939 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 845.19 ms. Allocated memory was 137.9 MB in the beginning and 205.0 MB in the end (delta: 67.1 MB). Free memory was 100.8 MB in the beginning and 170.1 MB in the end (delta: -69.3 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.91 ms. Allocated memory is still 205.0 MB. Free memory was 170.1 MB in the beginning and 165.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1196.30 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 165.0 MB in the beginning and 180.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24039.50 ms. Allocated memory was 236.5 MB in the beginning and 540.0 MB in the end (delta: 303.6 MB). Free memory was 179.3 MB in the beginning and 128.4 MB in the end (delta: 50.8 MB). Peak memory consumption was 360.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 511]: 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: 606]: Loop Invariant Derived loop invariant: ((((((((((((!(1 == \old(a19)) || (a17 <= 7 && 9 <= a28)) || (((1 == a19 && a11 == \old(a11)) && a17 < 9) && 1 == a25)) || !(7 == \old(a28))) || ((a11 == \old(a11) && a28 <= 9) && a17 < 9)) || (((((1 == a19 && 1 == a11) && a28 < 11) && a17 < 9) && 9 <= a28) && 1 == a25)) || ((((1 == a19 && 1 == a11) && a28 <= 9) && a17 < 9) && 9 <= a28)) || !(1 == a21)) || !(\old(a11) <= 0)) || (((1 == a19 && a11 <= 0) && 10 == a28) && 8 == a17)) || !(8 == \old(a17))) || !(\old(a25) <= 0)) || ((1 == a11 && a17 < 9) && a28 <= 7)) || (((a11 == \old(a11) && a28 < 11) && a17 < 9) && 1 == a25) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.9s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 862 SDtfs, 5737 SDslu, 796 SDs, 0 SdLazy, 9356 SolverSat, 1242 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3143 GetRequests, 3031 SyntacticMatches, 5 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3071occurred 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, 429 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 107 PreInvPairs, 153 NumberOfFragments, 723 HoareAnnotationTreeSize, 107 FomulaSimplifications, 1854 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3752 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1816 NumberOfCodeBlocks, 1117 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 3074 ConstructedInterpolants, 0 QuantifiedInterpolants, 1897946 SizeOfPredicates, 38 NumberOfNonLiveVariables, 3571 ConjunctsInSsa, 136 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 1446/1490 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...