/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_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:54:45,051 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 22:54:45,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:54:45,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:54:45,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:54:45,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:54:45,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:54:45,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:54:45,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:54:45,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:54:45,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:54:45,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:54:45,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:54:45,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:54:45,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:54:45,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:54:45,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:54:45,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:54:45,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:54:45,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:54:45,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:54:45,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:54:45,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:54:45,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:54:45,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:54:45,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:54:45,102 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 22:54:45,126 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:54:45,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:54:45,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:54:45,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:54:45,127 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:54:45,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:54:45,128 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:54:45,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:54:45,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:54:45,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:54:45,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:54:45,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:54:45,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:54:45,130 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:54:45,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:54:45,130 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:54:45,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:54:45,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:54:45,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:54:45,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:54:45,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:54:45,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:54:45,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:54:45,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:54:45,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:54:45,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:54:45,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:45,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:54:45,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:54:45,134 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 22:54:45,405 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:54:45,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:54:45,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:54:45,426 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:54:45,428 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:54:45,429 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label09.c [2020-07-21 22:54:45,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbd1cce88/fb2d16fdfc604890931eb905281306fe/FLAGad7083fb6 [2020-07-21 22:54:46,036 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:54:46,037 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label09.c [2020-07-21 22:54:46,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbd1cce88/fb2d16fdfc604890931eb905281306fe/FLAGad7083fb6 [2020-07-21 22:54:46,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbd1cce88/fb2d16fdfc604890931eb905281306fe [2020-07-21 22:54:46,290 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:54:46,293 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:54:46,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:54:46,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:54:46,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:54:46,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:54:46" (1/1) ... [2020-07-21 22:54:46,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44de9f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:46, skipping insertion in model container [2020-07-21 22:54:46,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:54:46" (1/1) ... [2020-07-21 22:54:46,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:54:46,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:54:46,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:54:46,775 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:54:47,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:54:47,038 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:54:47,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:47 WrapperNode [2020-07-21 22:54:47,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:54:47,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:54:47,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:54:47,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:54:47,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:47" (1/1) ... [2020-07-21 22:54:47,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:47" (1/1) ... [2020-07-21 22:54:47,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:47" (1/1) ... [2020-07-21 22:54:47,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:47" (1/1) ... [2020-07-21 22:54:47,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:47" (1/1) ... [2020-07-21 22:54:47,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:47" (1/1) ... [2020-07-21 22:54:47,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:47" (1/1) ... [2020-07-21 22:54:47,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:54:47,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:54:47,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:54:47,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:54:47,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:47" (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 22:54:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:54:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:54:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:54:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:54:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:54:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:54:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:54:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:54:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:54:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:54:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:54:48,457 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:54:48,458 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:54:48,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:54:48 BoogieIcfgContainer [2020-07-21 22:54:48,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:54:48,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:54:48,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:54:48,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:54:48,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:54:46" (1/3) ... [2020-07-21 22:54:48,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c1f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:54:48, skipping insertion in model container [2020-07-21 22:54:48,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:47" (2/3) ... [2020-07-21 22:54:48,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c1f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:54:48, skipping insertion in model container [2020-07-21 22:54:48,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:54:48" (3/3) ... [2020-07-21 22:54:48,473 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label09.c [2020-07-21 22:54:48,484 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:54:48,492 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:54:48,505 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:54:48,532 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:54:48,532 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:54:48,532 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:54:48,532 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:54:48,533 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:54:48,533 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:54:48,533 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:54:48,533 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:54:48,557 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 22:54:48,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-21 22:54:48,573 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:48,574 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:48,574 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:48,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:48,583 INFO L82 PathProgramCache]: Analyzing trace with hash -976875031, now seen corresponding path program 1 times [2020-07-21 22:54:48,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:48,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655416327] [2020-07-21 22:54:48,593 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 22:54:48,803 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:54:48,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:48,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 22:54:48,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:49,361 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:54:49,366 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:54:49,367 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:54:49,454 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 22:54:49,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:54:49,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655416327] [2020-07-21 22:54:49,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:54:49,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 22:54:49,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26395403] [2020-07-21 22:54:49,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 22:54:49,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:49,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 22:54:49,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:54:49,483 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 22:54:50,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:50,684 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 22:54:50,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:54:50,687 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 127 [2020-07-21 22:54:50,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:50,708 INFO L225 Difference]: With dead ends: 527 [2020-07-21 22:54:50,708 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 22:54:50,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 22:54:50,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 22:54:50,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 22:54:50,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 22:54:50,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 22:54:50,838 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 127 [2020-07-21 22:54:50,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:50,839 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 22:54:50,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 22:54:50,840 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 22:54:50,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-21 22:54:50,849 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:50,849 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:51,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:51,068 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:51,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:51,069 INFO L82 PathProgramCache]: Analyzing trace with hash 544043736, now seen corresponding path program 1 times [2020-07-21 22:54:51,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:51,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548937265] [2020-07-21 22:54:51,069 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 22:54:51,165 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:54:51,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:51,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 22:54:51,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:51,683 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 22:54:51,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:52,130 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 22:54:52,132 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:54:52,134 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:54:52,136 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:54:52,137 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:54:52,168 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 22:54:52,168 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:54:52,214 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:54:52,286 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:54:52,374 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 22:54:52,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548937265] [2020-07-21 22:54:52,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:52,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 22:54:52,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262818527] [2020-07-21 22:54:52,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 22:54:52,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:52,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 22:54:52,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 22:54:52,379 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 22:54:53,416 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:54:54,486 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 22:54:55,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:55,935 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 22:54:55,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 22:54:55,937 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 136 [2020-07-21 22:54:55,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:55,945 INFO L225 Difference]: With dead ends: 738 [2020-07-21 22:54:55,945 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 22:54:55,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 249 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 22:54:55,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 22:54:56,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 22:54:56,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 22:54:56,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 22:54:56,021 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 136 [2020-07-21 22:54:56,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:56,022 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 22:54:56,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 22:54:56,022 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 22:54:56,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-07-21 22:54:56,027 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:56,028 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:56,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:56,229 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:56,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:56,229 INFO L82 PathProgramCache]: Analyzing trace with hash -970675739, now seen corresponding path program 1 times [2020-07-21 22:54:56,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:56,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365576039] [2020-07-21 22:54:56,231 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 22:54:56,335 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:54:56,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:56,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 22:54:56,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:56,377 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 22:54:56,377 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:54:56,401 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:54:56,429 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 22:54:56,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:56,520 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:54:56,521 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:54:56,546 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:54:56,599 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:54:56,603 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:54:56,628 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 22:54:56,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365576039] [2020-07-21 22:54:56,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:56,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:54:56,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115017688] [2020-07-21 22:54:56,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:54:56,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:56,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:54:56,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:54:56,631 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 22:54:58,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:58,254 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 22:54:58,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 22:54:58,255 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 148 [2020-07-21 22:54:58,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:58,263 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 22:54:58,264 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 22:54:58,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 295 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 22:54:58,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 22:54:58,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 22:54:58,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 22:54:58,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1271 transitions. [2020-07-21 22:54:58,311 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1271 transitions. Word has length 148 [2020-07-21 22:54:58,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:58,311 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1271 transitions. [2020-07-21 22:54:58,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:54:58,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1271 transitions. [2020-07-21 22:54:58,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-07-21 22:54:58,315 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:58,315 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:58,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:58,526 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:58,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:58,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1526770414, now seen corresponding path program 1 times [2020-07-21 22:54:58,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:58,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1113050502] [2020-07-21 22:54:58,529 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 22:54:58,640 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:54:58,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:58,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:54:58,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:58,705 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 22:54:58,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:54:58,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1113050502] [2020-07-21 22:54:58,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:54:58,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:54:58,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795001346] [2020-07-21 22:54:58,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:54:58,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:58,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:54:58,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:54:58,708 INFO L87 Difference]: Start difference. First operand 1015 states and 1271 transitions. Second operand 3 states. [2020-07-21 22:54:59,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:59,348 INFO L93 Difference]: Finished difference Result 2320 states and 3002 transitions. [2020-07-21 22:54:59,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:54:59,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-07-21 22:54:59,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:59,364 INFO L225 Difference]: With dead ends: 2320 [2020-07-21 22:54:59,365 INFO L226 Difference]: Without dead ends: 1311 [2020-07-21 22:54:59,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 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 22:54:59,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2020-07-21 22:54:59,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1307. [2020-07-21 22:54:59,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2020-07-21 22:54:59,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1677 transitions. [2020-07-21 22:54:59,433 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1677 transitions. Word has length 169 [2020-07-21 22:54:59,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:59,435 INFO L479 AbstractCegarLoop]: Abstraction has 1307 states and 1677 transitions. [2020-07-21 22:54:59,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:54:59,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1677 transitions. [2020-07-21 22:54:59,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-21 22:54:59,444 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:59,444 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:59,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:59,658 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:59,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:59,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1239839761, now seen corresponding path program 1 times [2020-07-21 22:54:59,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:59,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135702081] [2020-07-21 22:54:59,659 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 22:54:59,754 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:54:59,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:59,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:54:59,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:59,798 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 22:54:59,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:59,915 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 22:54:59,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [135702081] [2020-07-21 22:54:59,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:59,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 22:54:59,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874944312] [2020-07-21 22:54:59,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:54:59,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:59,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:54:59,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:54:59,918 INFO L87 Difference]: Start difference. First operand 1307 states and 1677 transitions. Second operand 8 states. [2020-07-21 22:55:00,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:00,862 INFO L93 Difference]: Finished difference Result 3180 states and 4224 transitions. [2020-07-21 22:55:00,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:55:00,863 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 172 [2020-07-21 22:55:00,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:00,870 INFO L225 Difference]: With dead ends: 3180 [2020-07-21 22:55:00,871 INFO L226 Difference]: Without dead ends: 1426 [2020-07-21 22:55:00,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 339 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 22:55:00,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2020-07-21 22:55:00,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1426. [2020-07-21 22:55:00,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2020-07-21 22:55:00,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1745 transitions. [2020-07-21 22:55:00,923 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1745 transitions. Word has length 172 [2020-07-21 22:55:00,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:00,923 INFO L479 AbstractCegarLoop]: Abstraction has 1426 states and 1745 transitions. [2020-07-21 22:55:00,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:55:00,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1745 transitions. [2020-07-21 22:55:00,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-21 22:55:00,928 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:00,929 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:01,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:01,142 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:01,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:01,143 INFO L82 PathProgramCache]: Analyzing trace with hash -609344920, now seen corresponding path program 1 times [2020-07-21 22:55:01,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:01,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331747071] [2020-07-21 22:55:01,145 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 22:55:01,230 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:55:01,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:01,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:55:01,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:01,275 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 22:55:01,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:01,360 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 22:55:01,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331747071] [2020-07-21 22:55:01,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:01,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:55:01,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664970546] [2020-07-21 22:55:01,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:55:01,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:01,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:55:01,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:55:01,363 INFO L87 Difference]: Start difference. First operand 1426 states and 1745 transitions. Second operand 7 states. [2020-07-21 22:55:02,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:02,093 INFO L93 Difference]: Finished difference Result 3441 states and 4492 transitions. [2020-07-21 22:55:02,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:55:02,094 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-07-21 22:55:02,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:02,106 INFO L225 Difference]: With dead ends: 3441 [2020-07-21 22:55:02,106 INFO L226 Difference]: Without dead ends: 1921 [2020-07-21 22:55:02,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 351 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 22:55:02,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2020-07-21 22:55:02,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1879. [2020-07-21 22:55:02,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1879 states. [2020-07-21 22:55:02,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 2253 transitions. [2020-07-21 22:55:02,171 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 2253 transitions. Word has length 178 [2020-07-21 22:55:02,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:02,171 INFO L479 AbstractCegarLoop]: Abstraction has 1879 states and 2253 transitions. [2020-07-21 22:55:02,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:55:02,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 2253 transitions. [2020-07-21 22:55:02,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-21 22:55:02,177 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:02,177 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:02,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:02,393 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:02,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:02,394 INFO L82 PathProgramCache]: Analyzing trace with hash 681474845, now seen corresponding path program 1 times [2020-07-21 22:55:02,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:02,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570639510] [2020-07-21 22:55:02,395 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 22:55:02,487 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:55:02,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:02,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:55:02,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:02,530 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 22:55:02,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:02,642 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 22:55:02,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570639510] [2020-07-21 22:55:02,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:02,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:55:02,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848432599] [2020-07-21 22:55:02,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:55:02,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:02,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:55:02,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:55:02,646 INFO L87 Difference]: Start difference. First operand 1879 states and 2253 transitions. Second operand 7 states. [2020-07-21 22:55:03,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:03,839 INFO L93 Difference]: Finished difference Result 4145 states and 5022 transitions. [2020-07-21 22:55:03,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 22:55:03,839 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 189 [2020-07-21 22:55:03,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:03,853 INFO L225 Difference]: With dead ends: 4145 [2020-07-21 22:55:03,853 INFO L226 Difference]: Without dead ends: 2326 [2020-07-21 22:55:03,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 373 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 22:55:03,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2326 states. [2020-07-21 22:55:03,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2326 to 2312. [2020-07-21 22:55:03,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2312 states. [2020-07-21 22:55:03,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 2567 transitions. [2020-07-21 22:55:03,926 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 2567 transitions. Word has length 189 [2020-07-21 22:55:03,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:03,926 INFO L479 AbstractCegarLoop]: Abstraction has 2312 states and 2567 transitions. [2020-07-21 22:55:03,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:55:03,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 2567 transitions. [2020-07-21 22:55:03,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-07-21 22:55:03,935 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:03,936 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:04,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:04,151 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:04,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:04,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1711068958, now seen corresponding path program 1 times [2020-07-21 22:55:04,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:04,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909459200] [2020-07-21 22:55:04,153 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 22:55:04,260 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:55:04,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:04,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:55:04,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:04,355 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 22:55:04,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:04,460 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 22:55:04,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909459200] [2020-07-21 22:55:04,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:04,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:55:04,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164742042] [2020-07-21 22:55:04,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:55:04,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:04,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:55:04,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:55:04,463 INFO L87 Difference]: Start difference. First operand 2312 states and 2567 transitions. Second operand 7 states. [2020-07-21 22:55:05,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:05,465 INFO L93 Difference]: Finished difference Result 5182 states and 5759 transitions. [2020-07-21 22:55:05,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:55:05,466 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 246 [2020-07-21 22:55:05,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:05,482 INFO L225 Difference]: With dead ends: 5182 [2020-07-21 22:55:05,483 INFO L226 Difference]: Without dead ends: 2930 [2020-07-21 22:55:05,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 488 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 22:55:05,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2020-07-21 22:55:05,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2921. [2020-07-21 22:55:05,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2921 states. [2020-07-21 22:55:05,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 3161 transitions. [2020-07-21 22:55:05,582 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 3161 transitions. Word has length 246 [2020-07-21 22:55:05,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:05,583 INFO L479 AbstractCegarLoop]: Abstraction has 2921 states and 3161 transitions. [2020-07-21 22:55:05,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:55:05,584 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 3161 transitions. [2020-07-21 22:55:05,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-07-21 22:55:05,599 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:05,600 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:05,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:05,816 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:05,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:05,816 INFO L82 PathProgramCache]: Analyzing trace with hash -256908631, now seen corresponding path program 1 times [2020-07-21 22:55:05,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:05,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440881634] [2020-07-21 22:55:05,817 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 22:55:05,928 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:55:05,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:05,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:55:05,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:06,019 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 22:55:06,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:06,103 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 22:55:06,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440881634] [2020-07-21 22:55:06,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:06,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:55:06,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613051414] [2020-07-21 22:55:06,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:55:06,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:06,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:55:06,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:55:06,106 INFO L87 Difference]: Start difference. First operand 2921 states and 3161 transitions. Second operand 7 states. [2020-07-21 22:55:07,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:07,056 INFO L93 Difference]: Finished difference Result 3659 states and 3982 transitions. [2020-07-21 22:55:07,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 22:55:07,062 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 262 [2020-07-21 22:55:07,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:07,069 INFO L225 Difference]: With dead ends: 3659 [2020-07-21 22:55:07,069 INFO L226 Difference]: Without dead ends: 1388 [2020-07-21 22:55:07,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 520 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 22:55:07,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2020-07-21 22:55:07,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1388. [2020-07-21 22:55:07,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1388 states. [2020-07-21 22:55:07,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1468 transitions. [2020-07-21 22:55:07,110 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1468 transitions. Word has length 262 [2020-07-21 22:55:07,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:07,111 INFO L479 AbstractCegarLoop]: Abstraction has 1388 states and 1468 transitions. [2020-07-21 22:55:07,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:55:07,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1468 transitions. [2020-07-21 22:55:07,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-07-21 22:55:07,116 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:07,116 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:07,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:07,331 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:07,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:07,332 INFO L82 PathProgramCache]: Analyzing trace with hash -483886550, now seen corresponding path program 1 times [2020-07-21 22:55:07,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:07,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [792338228] [2020-07-21 22:55:07,333 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 22:55:07,526 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:55:07,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:07,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:55:07,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:07,581 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 22:55:07,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:55:07,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [792338228] [2020-07-21 22:55:07,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:55:07,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:55:07,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175372702] [2020-07-21 22:55:07,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:55:07,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:07,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:55:07,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:55:07,584 INFO L87 Difference]: Start difference. First operand 1388 states and 1468 transitions. Second operand 3 states. [2020-07-21 22:55:07,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:07,805 INFO L93 Difference]: Finished difference Result 1388 states and 1468 transitions. [2020-07-21 22:55:07,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:55:07,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 269 [2020-07-21 22:55:07,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:07,807 INFO L225 Difference]: With dead ends: 1388 [2020-07-21 22:55:07,807 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:55:07,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 267 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 22:55:07,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:55:07,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:55:07,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:55:07,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:55:07,811 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 269 [2020-07-21 22:55:07,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:07,811 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:55:07,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:55:07,811 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:55:07,812 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:55:08,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:08,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:55:08,429 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 95 [2020-07-21 22:55:09,847 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 146 DAG size of output: 107 [2020-07-21 22:55:10,396 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 53 [2020-07-21 22:55:10,967 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 64 [2020-07-21 22:55:10,971 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:55:10,971 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 22:55:10,972 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:55:10,972 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,972 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,972 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,972 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,972 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,972 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 22:55:10,972 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 22:55:10,972 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 22:55:10,972 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 22:55:10,973 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 22:55:10,973 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 22:55:10,973 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 22:55:10,973 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 22:55:10,973 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 22:55:10,973 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 22:55:10,973 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:55:10,973 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:55:10,973 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 22:55:10,973 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,974 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,974 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,974 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,974 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 22:55:10,974 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,974 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 22:55:10,974 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 22:55:10,975 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 22:55:10,975 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 22:55:10,975 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 22:55:10,975 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 22:55:10,975 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 22:55:10,975 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:55:10,975 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:55:10,975 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 22:55:10,976 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 22:55:10,976 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 22:55:10,976 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:55:10,976 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:55:10,976 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 22:55:10,976 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,976 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,976 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,977 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,977 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,977 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 535) no Hoare annotation was computed. [2020-07-21 22:55:10,977 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:55:10,977 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 22:55:10,977 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:55:10,977 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 22:55:10,977 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 22:55:10,978 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 22:55:10,978 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 22:55:10,978 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 22:55:10,978 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 22:55:10,978 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 22:55:10,978 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 22:55:10,978 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,978 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,978 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,979 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,979 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,979 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 22:55:10,979 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 22:55:10,979 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 22:55:10,979 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 22:55:10,979 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 22:55:10,979 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 22:55:10,979 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 22:55:10,980 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 22:55:10,980 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 22:55:10,980 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 22:55:10,980 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 22:55:10,980 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 22:55:10,980 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 22:55:10,980 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,980 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,980 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,981 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,981 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,981 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 22:55:10,981 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 22:55:10,981 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 22:55:10,981 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 22:55:10,981 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 22:55:10,981 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 22:55:10,981 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 22:55:10,981 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 22:55:10,982 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 22:55:10,982 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 22:55:10,982 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 22:55:10,982 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 22:55:10,982 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 22:55:10,982 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:55:10,982 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 22:55:10,982 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:55:10,982 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,982 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,983 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,983 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,983 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 22:55:10,983 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,983 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:55:10,983 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,983 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:55:10,983 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:55:10,983 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:55:10,984 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,984 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,984 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 22:55:10,984 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 22:55:10,984 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 22:55:10,984 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 22:55:10,984 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 22:55:10,984 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 22:55:10,985 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 22:55:10,985 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 22:55:10,985 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 22:55:10,985 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 22:55:10,985 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 22:55:10,985 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,985 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,985 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,985 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,985 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,985 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,986 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 22:55:10,986 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 22:55:10,986 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 22:55:10,986 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 22:55:10,986 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 22:55:10,986 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 22:55:10,986 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 22:55:10,986 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 22:55:10,986 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 22:55:10,986 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 22:55:10,986 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 22:55:10,986 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,986 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,986 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,987 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,987 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,987 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,987 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 22:55:10,987 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 22:55:10,987 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 22:55:10,987 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 22:55:10,987 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 22:55:10,987 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 22:55:10,987 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 22:55:10,987 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 22:55:10,987 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 22:55:10,987 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 22:55:10,987 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 22:55:10,987 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 22:55:10,988 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 22:55:10,988 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 22:55:10,988 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,988 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,988 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,988 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse7 (not (= 1 ~a21~0))) (.cse22 (= 1 |old(~a25~0)|))) (let ((.cse2 (<= ~a28~0 9)) (.cse20 (= 1 ~a11~0)) (.cse16 (not (< |old(~a28~0)| 11))) (.cse18 (not (= 1 |old(~a11~0)|))) (.cse19 (<= ~a11~0 |old(~a11~0)|)) (.cse21 (not (< 8 |old(~a28~0)|))) (.cse3 (not (<= 9 |old(~a28~0)|))) (.cse4 (not (<= |old(~a28~0)| 9))) (.cse9 (not (<= 8 |old(~a17~0)|))) (.cse11 (<= 8 ~a17~0)) (.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse10 (<= ~a28~0 |old(~a28~0)|)) (.cse13 (< ~a17~0 9)) (.cse15 (= 1 ~a25~0)) (.cse5 (not .cse22)) (.cse6 (not (< |old(~a17~0)| 9))) (.cse8 (not (<= |old(~a11~0)| 0))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse24 (<= ~a17~0 |old(~a17~0)|)) (.cse12 (= ~a19~0 |old(~a19~0)|)) (.cse25 (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) .cse7)) (.cse14 (<= |old(~a28~0)| ~a28~0)) (.cse17 (= ~a25~0 |old(~a25~0)|)) (.cse23 (not (<= |old(~a17~0)| 7)))) (and (or .cse0 (and .cse1 .cse2) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse9 .cse5 .cse6 (and .cse1 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) .cse7 .cse8 .cse16) (or .cse4 .cse9 .cse6 (and .cse10 .cse1 .cse11 .cse12 .cse13 .cse14 .cse17) .cse18) (or .cse0 (not (= 10 |old(~a28~0)|)) (not (= 8 |old(~a17~0)|)) (and (= 1 ~a19~0) .cse19 (= 10 ~a28~0) (= 8 ~a17~0)) (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 .cse8) (or .cse0 (and .cse20 .cse2) .cse4 .cse6 .cse21 .cse18) (or .cse0 (and .cse10 .cse20 .cse12 .cse13 .cse14 .cse15) .cse5 .cse6 .cse16 .cse18) (or .cse19 (and .cse22 (not (< 9 |old(~a28~0)|))) .cse23 .cse21 .cse7 .cse8) (or .cse3 (and .cse24 .cse25 .cse14 .cse17) .cse23) (or .cse4 .cse9 .cse6 .cse7 .cse8 (and .cse1 .cse10 .cse11 .cse12 .cse13 .cse14 .cse17)) (or .cse0 (and .cse1 .cse10 .cse12 .cse13 .cse14 .cse15) .cse5 .cse6 (not (<= 11 |old(~a28~0)|)) .cse7 .cse8) (or .cse0 (and .cse24 .cse12 .cse25 .cse14 .cse17) .cse23)))) [2020-07-21 22:55:10,988 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,988 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,988 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,988 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 22:55:10,989 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 22:55:10,989 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 22:55:10,989 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 22:55:10,989 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 22:55:10,989 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 22:55:10,989 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 22:55:10,989 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 22:55:10,989 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 22:55:10,989 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 22:55:10,989 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 22:55:10,989 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 22:55:10,989 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 22:55:10,989 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,989 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,990 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,990 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,990 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,990 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,990 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 22:55:10,990 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 22:55:10,990 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 22:55:10,990 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 22:55:10,990 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 22:55:10,991 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 22:55:10,991 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 22:55:10,991 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 22:55:10,991 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 22:55:10,991 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 22:55:10,991 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 22:55:10,991 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:55:10,991 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:55:10,991 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 22:55:10,992 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 22:55:10,992 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 22:55:10,992 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,992 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,992 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,992 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,992 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:10,992 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 22:55:10,992 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 22:55:10,993 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 22:55:10,993 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 22:55:10,993 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 22:55:10,993 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 22:55:10,993 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 22:55:10,993 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 22:55:10,993 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 22:55:10,993 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 22:55:10,993 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 22:55:10,994 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:55:10,994 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 22:55:10,994 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:55:10,994 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 22:55:10,994 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:55:10,994 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:55:10,994 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 22:55:10,994 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 22:55:10,994 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:55:10,995 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 22:55:10,995 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:55:10,995 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:55:10,995 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 (< |old(~a17~0)| 9)) (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 22:55:10,995 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse1 (<= 8 ~a17~0)) (.cse2 (<= ~a28~0 9)) (.cse8 (= 1 ~a11~0)) (.cse4 (<= ~a17~0 7)) (.cse0 (= ~a11~0 |old(~a11~0)|)) (.cse9 (< ~a28~0 11)) (.cse3 (< ~a17~0 9)) (.cse5 (<= 9 ~a28~0)) (.cse7 (= 1 ~a25~0)) (.cse6 (= 1 ~a19~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5) (and .cse6 .cse0 .cse3 .cse7) (and .cse8 .cse1 .cse2 .cse3) (and .cse6 .cse8 .cse9 .cse3 .cse7) (and .cse6 .cse4) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse9 .cse3 .cse5 .cse7) (and .cse6 (<= ~a11~0 0) (= 10 ~a28~0) (= 8 ~a17~0)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)))) [2020-07-21 22:55:10,995 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:55:10,996 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:55:10,996 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse1 (<= 8 ~a17~0)) (.cse2 (<= ~a28~0 9)) (.cse8 (= 1 ~a11~0)) (.cse4 (<= ~a17~0 7)) (.cse0 (= ~a11~0 |old(~a11~0)|)) (.cse9 (< ~a28~0 11)) (.cse3 (< ~a17~0 9)) (.cse5 (<= 9 ~a28~0)) (.cse7 (= 1 ~a25~0)) (.cse6 (= 1 ~a19~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5) (and .cse6 .cse0 .cse3 .cse7) (and .cse8 .cse1 .cse2 .cse3) (and .cse6 .cse8 .cse9 .cse3 .cse7) (and .cse6 .cse4) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse9 .cse3 .cse5 .cse7) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse6 (<= ~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))))) [2020-07-21 22:55:10,996 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 22:55:10,996 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 22:55:11,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:55:11 BoogieIcfgContainer [2020-07-21 22:55:11,019 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:55:11,020 INFO L168 Benchmark]: Toolchain (without parser) took 24728.61 ms. Allocated memory was 145.8 MB in the beginning and 510.7 MB in the end (delta: 364.9 MB). Free memory was 101.7 MB in the beginning and 240.8 MB in the end (delta: -139.1 MB). Peak memory consumption was 379.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:11,021 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 145.8 MB. Free memory is still 121.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 22:55:11,022 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.30 ms. Allocated memory was 145.8 MB in the beginning and 206.0 MB in the end (delta: 60.3 MB). Free memory was 101.3 MB in the beginning and 173.3 MB in the end (delta: -72.0 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:11,023 INFO L168 Benchmark]: Boogie Preprocessor took 117.24 ms. Allocated memory is still 206.0 MB. Free memory was 173.3 MB in the beginning and 168.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:11,024 INFO L168 Benchmark]: RCFGBuilder took 1307.59 ms. Allocated memory was 206.0 MB in the beginning and 239.1 MB in the end (delta: 33.0 MB). Free memory was 168.3 MB in the beginning and 183.8 MB in the end (delta: -15.5 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:11,025 INFO L168 Benchmark]: TraceAbstraction took 22553.24 ms. Allocated memory was 239.1 MB in the beginning and 510.7 MB in the end (delta: 271.6 MB). Free memory was 182.0 MB in the beginning and 240.8 MB in the end (delta: -58.8 MB). Peak memory consumption was 365.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:11,028 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 145.8 MB. Free memory is still 121.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.30 ms. Allocated memory was 145.8 MB in the beginning and 206.0 MB in the end (delta: 60.3 MB). Free memory was 101.3 MB in the beginning and 173.3 MB in the end (delta: -72.0 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.24 ms. Allocated memory is still 206.0 MB. Free memory was 173.3 MB in the beginning and 168.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1307.59 ms. Allocated memory was 206.0 MB in the beginning and 239.1 MB in the end (delta: 33.0 MB). Free memory was 168.3 MB in the beginning and 183.8 MB in the end (delta: -15.5 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22553.24 ms. Allocated memory was 239.1 MB in the beginning and 510.7 MB in the end (delta: 271.6 MB). Free memory was 182.0 MB in the beginning and 240.8 MB in the end (delta: -58.8 MB). Peak memory consumption was 365.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 535]: 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)) || (((a11 == \old(a11) && 8 <= a17) && a28 <= 9) && a17 < 9)) || (a17 <= 7 && 9 <= a28)) || (((1 == a19 && a11 == \old(a11)) && a17 < 9) && 1 == a25)) || (((1 == a11 && 8 <= a17) && a28 <= 9) && a17 < 9)) || ((((1 == a19 && 1 == a11) && a28 < 11) && a17 < 9) && 1 == a25)) || (1 == a19 && a17 <= 7)) || !(7 == \old(a28))) || !(1 == a21)) || !(\old(a11) <= 0)) || ((((a11 == \old(a11) && a28 < 11) && a17 < 9) && 9 <= a28) && 1 == a25)) || (((1 == a19 && a11 <= 0) && 10 == a28) && 8 == a17)) || !(8 == \old(a17))) || !(\old(a25) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.4s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 749 SDtfs, 5371 SDslu, 743 SDs, 0 SdLazy, 9009 SolverSat, 1234 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3279 GetRequests, 3167 SyntacticMatches, 5 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2921occurred 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, 131 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 97 PreInvPairs, 147 NumberOfFragments, 773 HoareAnnotationTreeSize, 97 FomulaSimplifications, 1467 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3972 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1896 NumberOfCodeBlocks, 1103 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 3210 ConstructedInterpolants, 0 QuantifiedInterpolants, 2028626 SizeOfPredicates, 38 NumberOfNonLiveVariables, 3530 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...