/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_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:23:02,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 01:23:02,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 01:23:02,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 01:23:02,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 01:23:02,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 01:23:02,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 01:23:02,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 01:23:02,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 01:23:02,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 01:23:02,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 01:23:02,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 01:23:02,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:23:02,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:23:02,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:23:02,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:23:02,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:23:02,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:23:02,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:23:02,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:23:02,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:23:02,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:23:02,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:23:02,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:23:02,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 01:23:02,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 01:23:02,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 01:23:02,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 01:23:02,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 01:23:02,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 01:23:02,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 01:23:02,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 01:23:02,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 01:23:02,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 01:23:03,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 01:23:03,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 01:23:03,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 01:23:03,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 01:23:03,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:23:03,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:23:03,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:23:03,005 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 01:23:03,019 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:23:03,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:23:03,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:23:03,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:23:03,021 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:23:03,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:23:03,022 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:23:03,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:23:03,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:23:03,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:23:03,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:23:03,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:23:03,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:23:03,023 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:23:03,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:23:03,024 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:23:03,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:23:03,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:23:03,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:23:03,025 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:23:03,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:23:03,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:23:03,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:23:03,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:23:03,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:23:03,026 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:23:03,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:03,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:23:03,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:23:03,027 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 01:23:03,438 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:23:03,457 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:23:03,462 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:23:03,464 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:23:03,464 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:23:03,465 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label03.c [2020-07-21 01:23:03,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae46fc93a/00130d09d63c4925ba0d4f7cba1b649b/FLAGbb1de5f24 [2020-07-21 01:23:04,123 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:23:04,124 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label03.c [2020-07-21 01:23:04,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae46fc93a/00130d09d63c4925ba0d4f7cba1b649b/FLAGbb1de5f24 [2020-07-21 01:23:04,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae46fc93a/00130d09d63c4925ba0d4f7cba1b649b [2020-07-21 01:23:04,405 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:23:04,408 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:23:04,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:23:04,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:23:04,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:23:04,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:23:04" (1/1) ... [2020-07-21 01:23:04,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dffb5e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:04, skipping insertion in model container [2020-07-21 01:23:04,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:23:04" (1/1) ... [2020-07-21 01:23:04,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:23:04,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:23:05,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:23:05,006 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:23:05,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:23:05,157 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:23:05,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:05 WrapperNode [2020-07-21 01:23:05,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:23:05,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:23:05,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:23:05,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:23:05,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:05" (1/1) ... [2020-07-21 01:23:05,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:05" (1/1) ... [2020-07-21 01:23:05,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:05" (1/1) ... [2020-07-21 01:23:05,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:05" (1/1) ... [2020-07-21 01:23:05,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:05" (1/1) ... [2020-07-21 01:23:05,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:05" (1/1) ... [2020-07-21 01:23:05,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:05" (1/1) ... [2020-07-21 01:23:05,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:23:05,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:23:05,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:23:05,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:23:05,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:05" (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 01:23:05,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:23:05,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:23:05,336 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:23:05,337 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:23:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:23:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:23:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:23:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:23:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:23:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:23:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:23:06,561 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:23:06,562 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:23:06,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:23:06 BoogieIcfgContainer [2020-07-21 01:23:06,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:23:06,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:23:06,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:23:06,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:23:06,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:23:04" (1/3) ... [2020-07-21 01:23:06,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782cdd52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:23:06, skipping insertion in model container [2020-07-21 01:23:06,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:05" (2/3) ... [2020-07-21 01:23:06,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782cdd52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:23:06, skipping insertion in model container [2020-07-21 01:23:06,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:23:06" (3/3) ... [2020-07-21 01:23:06,595 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label03.c [2020-07-21 01:23:06,607 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:23:06,621 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:23:06,636 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:23:06,675 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:23:06,675 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:23:06,676 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:23:06,676 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:23:06,676 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:23:06,676 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:23:06,677 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:23:06,677 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:23:06,708 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 01:23:06,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-21 01:23:06,724 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:06,725 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:06,726 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:06,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:06,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1255491721, now seen corresponding path program 1 times [2020-07-21 01:23:06,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:06,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147852101] [2020-07-21 01:23:06,740 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 01:23:06,913 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:06,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:06,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:23:06,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:07,511 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:23:07,518 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:23:07,518 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:23:07,641 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 01:23:07,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:23:07,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147852101] [2020-07-21 01:23:07,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:23:07,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 01:23:07,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743897008] [2020-07-21 01:23:07,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:23:07,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:07,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:23:07,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:23:07,674 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 01:23:09,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:09,005 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 01:23:09,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:23:09,007 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 135 [2020-07-21 01:23:09,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:09,021 INFO L225 Difference]: With dead ends: 527 [2020-07-21 01:23:09,021 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 01:23:09,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 01:23:09,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 01:23:09,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 01:23:09,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 01:23:09,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 01:23:09,095 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 135 [2020-07-21 01:23:09,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:09,096 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 01:23:09,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:23:09,096 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 01:23:09,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-07-21 01:23:09,101 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:09,101 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:09,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:09,317 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:09,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:09,317 INFO L82 PathProgramCache]: Analyzing trace with hash 603998840, now seen corresponding path program 1 times [2020-07-21 01:23:09,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:09,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147657870] [2020-07-21 01:23:09,319 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 01:23:09,457 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:23:09,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:09,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:23:09,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:09,983 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 01:23:09,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:10,419 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:23:10,421 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:23:10,422 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:23:10,424 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:23:10,426 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:23:10,468 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:23:10,470 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:23:10,515 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:10,592 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:10,732 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 01:23:10,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147657870] [2020-07-21 01:23:10,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:10,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:23:10,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174384324] [2020-07-21 01:23:10,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:23:10,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:10,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:23:10,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:23:10,740 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 01:23:11,832 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:23:12,920 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 01:23:14,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:14,491 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 01:23:14,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 01:23:14,496 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 144 [2020-07-21 01:23:14,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:14,502 INFO L225 Difference]: With dead ends: 738 [2020-07-21 01:23:14,502 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 01:23:14,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 265 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 01:23:14,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 01:23:14,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 01:23:14,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 01:23:14,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 01:23:14,545 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 144 [2020-07-21 01:23:14,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:14,546 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 01:23:14,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:23:14,546 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 01:23:14,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-21 01:23:14,550 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:14,551 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:14,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:14,766 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:14,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:14,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1577723013, now seen corresponding path program 1 times [2020-07-21 01:23:14,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:14,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654569020] [2020-07-21 01:23:14,769 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 01:23:14,878 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:23:14,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:14,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:23:14,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:14,910 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:23:14,911 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:23:14,937 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:23:14,961 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 01:23:14,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:15,055 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:23:15,057 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:15,081 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:23:15,129 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:15,133 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:15,158 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 01:23:15,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654569020] [2020-07-21 01:23:15,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:15,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:15,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121208109] [2020-07-21 01:23:15,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:15,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:15,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:15,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:15,162 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 01:23:16,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:16,810 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 01:23:16,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 01:23:16,811 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2020-07-21 01:23:16,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:16,819 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 01:23:16,819 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 01:23:16,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 311 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 01:23:16,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 01:23:16,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 01:23:16,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 01:23:16,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1271 transitions. [2020-07-21 01:23:16,885 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1271 transitions. Word has length 156 [2020-07-21 01:23:16,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:16,886 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1271 transitions. [2020-07-21 01:23:16,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:16,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1271 transitions. [2020-07-21 01:23:16,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-21 01:23:16,892 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:16,893 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:17,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:17,108 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:17,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:17,109 INFO L82 PathProgramCache]: Analyzing trace with hash -776139634, now seen corresponding path program 1 times [2020-07-21 01:23:17,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:17,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749919663] [2020-07-21 01:23:17,112 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 01:23:17,222 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:23:17,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:17,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 33 conjunts are in the unsatisfiable core [2020-07-21 01:23:17,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:17,330 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 01:23:17,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:23:17,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749919663] [2020-07-21 01:23:17,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:23:17,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 01:23:17,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746342799] [2020-07-21 01:23:17,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 01:23:17,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:17,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 01:23:17,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 01:23:17,333 INFO L87 Difference]: Start difference. First operand 1015 states and 1271 transitions. Second operand 4 states. [2020-07-21 01:23:18,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:18,094 INFO L93 Difference]: Finished difference Result 2113 states and 2722 transitions. [2020-07-21 01:23:18,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 01:23:18,095 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2020-07-21 01:23:18,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:18,106 INFO L225 Difference]: With dead ends: 2113 [2020-07-21 01:23:18,107 INFO L226 Difference]: Without dead ends: 1015 [2020-07-21 01:23:18,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 01:23:18,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2020-07-21 01:23:18,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1015. [2020-07-21 01:23:18,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 01:23:18,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1265 transitions. [2020-07-21 01:23:18,161 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1265 transitions. Word has length 177 [2020-07-21 01:23:18,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:18,163 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1265 transitions. [2020-07-21 01:23:18,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 01:23:18,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1265 transitions. [2020-07-21 01:23:18,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-07-21 01:23:18,169 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:18,169 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:18,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:18,384 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:18,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:18,385 INFO L82 PathProgramCache]: Analyzing trace with hash 203752113, now seen corresponding path program 1 times [2020-07-21 01:23:18,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:18,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808532783] [2020-07-21 01:23:18,387 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:18,484 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:18,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:18,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:18,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:18,535 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 01:23:18,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:18,606 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 01:23:18,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808532783] [2020-07-21 01:23:18,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:18,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:23:18,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741340501] [2020-07-21 01:23:18,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:23:18,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:18,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:23:18,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:23:18,609 INFO L87 Difference]: Start difference. First operand 1015 states and 1265 transitions. Second operand 6 states. [2020-07-21 01:23:19,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:19,858 INFO L93 Difference]: Finished difference Result 2370 states and 3062 transitions. [2020-07-21 01:23:19,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:23:19,859 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 180 [2020-07-21 01:23:19,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:19,870 INFO L225 Difference]: With dead ends: 2370 [2020-07-21 01:23:19,871 INFO L226 Difference]: Without dead ends: 1361 [2020-07-21 01:23:19,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 356 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:19,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2020-07-21 01:23:19,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1324. [2020-07-21 01:23:19,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1324 states. [2020-07-21 01:23:19,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1645 transitions. [2020-07-21 01:23:19,938 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1645 transitions. Word has length 180 [2020-07-21 01:23:19,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:19,939 INFO L479 AbstractCegarLoop]: Abstraction has 1324 states and 1645 transitions. [2020-07-21 01:23:19,939 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:23:19,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1645 transitions. [2020-07-21 01:23:19,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-21 01:23:19,948 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:19,948 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:20,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:20,164 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:20,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:20,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1937519014, now seen corresponding path program 1 times [2020-07-21 01:23:20,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:20,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1589844835] [2020-07-21 01:23:20,167 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 01:23:20,314 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:20,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:20,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:23:20,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:20,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:20,466 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:20,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1589844835] [2020-07-21 01:23:20,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:20,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:20,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015922204] [2020-07-21 01:23:20,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:20,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:20,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:20,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:20,470 INFO L87 Difference]: Start difference. First operand 1324 states and 1645 transitions. Second operand 7 states. [2020-07-21 01:23:21,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:21,505 INFO L93 Difference]: Finished difference Result 3596 states and 4835 transitions. [2020-07-21 01:23:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:23:21,506 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-07-21 01:23:21,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:21,532 INFO L225 Difference]: With dead ends: 3596 [2020-07-21 01:23:21,533 INFO L226 Difference]: Without dead ends: 2278 [2020-07-21 01:23:21,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 361 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 01:23:21,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2020-07-21 01:23:21,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 2234. [2020-07-21 01:23:21,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2234 states. [2020-07-21 01:23:21,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 2805 transitions. [2020-07-21 01:23:21,639 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 2805 transitions. Word has length 183 [2020-07-21 01:23:21,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:21,640 INFO L479 AbstractCegarLoop]: Abstraction has 2234 states and 2805 transitions. [2020-07-21 01:23:21,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:21,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 2805 transitions. [2020-07-21 01:23:21,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-21 01:23:21,652 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:21,653 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:23:21,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:21,866 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:21,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:21,867 INFO L82 PathProgramCache]: Analyzing trace with hash 250879363, now seen corresponding path program 1 times [2020-07-21 01:23:21,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:21,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051709231] [2020-07-21 01:23:21,868 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 01:23:21,986 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:21,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:21,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:21,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:22,035 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:23:22,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:22,102 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:23:22,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051709231] [2020-07-21 01:23:22,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:22,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:22,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504963177] [2020-07-21 01:23:22,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:22,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:22,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:22,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:22,106 INFO L87 Difference]: Start difference. First operand 2234 states and 2805 transitions. Second operand 7 states. [2020-07-21 01:23:23,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:23,191 INFO L93 Difference]: Finished difference Result 5526 states and 7040 transitions. [2020-07-21 01:23:23,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:23:23,191 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-07-21 01:23:23,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:23,206 INFO L225 Difference]: With dead ends: 5526 [2020-07-21 01:23:23,206 INFO L226 Difference]: Without dead ends: 2560 [2020-07-21 01:23:23,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 375 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:23,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2560 states. [2020-07-21 01:23:23,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2560 to 2362. [2020-07-21 01:23:23,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2020-07-21 01:23:23,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2885 transitions. [2020-07-21 01:23:23,302 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2885 transitions. Word has length 190 [2020-07-21 01:23:23,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:23,303 INFO L479 AbstractCegarLoop]: Abstraction has 2362 states and 2885 transitions. [2020-07-21 01:23:23,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:23,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2885 transitions. [2020-07-21 01:23:23,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-21 01:23:23,311 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:23,312 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:23:23,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:23,527 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:23,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:23,527 INFO L82 PathProgramCache]: Analyzing trace with hash 2111410899, now seen corresponding path program 1 times [2020-07-21 01:23:23,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:23,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [405633714] [2020-07-21 01:23:23,528 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 01:23:23,635 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:23,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:23,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:23,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:23,687 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:23,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:23,770 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:23,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [405633714] [2020-07-21 01:23:23,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:23,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:23,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280305645] [2020-07-21 01:23:23,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:23,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:23,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:23,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:23,773 INFO L87 Difference]: Start difference. First operand 2362 states and 2885 transitions. Second operand 7 states. [2020-07-21 01:23:25,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:25,110 INFO L93 Difference]: Finished difference Result 4875 states and 5962 transitions. [2020-07-21 01:23:25,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:23:25,116 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-07-21 01:23:25,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:25,127 INFO L225 Difference]: With dead ends: 4875 [2020-07-21 01:23:25,127 INFO L226 Difference]: Without dead ends: 2363 [2020-07-21 01:23:25,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 403 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 01:23:25,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states. [2020-07-21 01:23:25,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 2347. [2020-07-21 01:23:25,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2347 states. [2020-07-21 01:23:25,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 2603 transitions. [2020-07-21 01:23:25,193 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 2603 transitions. Word has length 204 [2020-07-21 01:23:25,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:25,193 INFO L479 AbstractCegarLoop]: Abstraction has 2347 states and 2603 transitions. [2020-07-21 01:23:25,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:25,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 2603 transitions. [2020-07-21 01:23:25,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-07-21 01:23:25,202 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:25,202 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:23:25,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:25,416 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:25,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:25,416 INFO L82 PathProgramCache]: Analyzing trace with hash 259892337, now seen corresponding path program 1 times [2020-07-21 01:23:25,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:25,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256819447] [2020-07-21 01:23:25,417 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 01:23:25,543 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:23:25,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:25,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:25,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:25,610 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 01:23:25,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:23:25,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256819447] [2020-07-21 01:23:25,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:23:25,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:23:25,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354851122] [2020-07-21 01:23:25,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:23:25,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:25,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:23:25,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:23:25,613 INFO L87 Difference]: Start difference. First operand 2347 states and 2603 transitions. Second operand 3 states. [2020-07-21 01:23:26,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:26,162 INFO L93 Difference]: Finished difference Result 4678 states and 5183 transitions. [2020-07-21 01:23:26,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:23:26,163 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2020-07-21 01:23:26,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:26,171 INFO L225 Difference]: With dead ends: 4678 [2020-07-21 01:23:26,171 INFO L226 Difference]: Without dead ends: 1894 [2020-07-21 01:23:26,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 239 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 01:23:26,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2020-07-21 01:23:26,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1600. [2020-07-21 01:23:26,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1600 states. [2020-07-21 01:23:26,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 1711 transitions. [2020-07-21 01:23:26,220 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 1711 transitions. Word has length 241 [2020-07-21 01:23:26,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:26,221 INFO L479 AbstractCegarLoop]: Abstraction has 1600 states and 1711 transitions. [2020-07-21 01:23:26,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:23:26,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 1711 transitions. [2020-07-21 01:23:26,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-07-21 01:23:26,227 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:26,228 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-07-21 01:23:26,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:26,443 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:26,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:26,443 INFO L82 PathProgramCache]: Analyzing trace with hash -2000175605, now seen corresponding path program 1 times [2020-07-21 01:23:26,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:26,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520799588] [2020-07-21 01:23:26,445 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 01:23:26,552 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:26,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:26,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:26,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-07-21 01:23:26,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:26,755 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 146 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-21 01:23:26,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520799588] [2020-07-21 01:23:26,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:26,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:23:26,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126259295] [2020-07-21 01:23:26,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:23:26,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:26,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:23:26,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:23:26,762 INFO L87 Difference]: Start difference. First operand 1600 states and 1711 transitions. Second operand 6 states. [2020-07-21 01:23:27,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:27,560 INFO L93 Difference]: Finished difference Result 3663 states and 3984 transitions. [2020-07-21 01:23:27,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:23:27,561 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 254 [2020-07-21 01:23:27,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:27,569 INFO L225 Difference]: With dead ends: 3663 [2020-07-21 01:23:27,570 INFO L226 Difference]: Without dead ends: 2069 [2020-07-21 01:23:27,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 504 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:27,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2069 states. [2020-07-21 01:23:27,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2069 to 2046. [2020-07-21 01:23:27,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2046 states. [2020-07-21 01:23:27,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 2194 transitions. [2020-07-21 01:23:27,620 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 2194 transitions. Word has length 254 [2020-07-21 01:23:27,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:27,620 INFO L479 AbstractCegarLoop]: Abstraction has 2046 states and 2194 transitions. [2020-07-21 01:23:27,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:23:27,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 2194 transitions. [2020-07-21 01:23:27,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-07-21 01:23:27,628 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:27,629 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:27,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:27,843 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:27,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:27,843 INFO L82 PathProgramCache]: Analyzing trace with hash -2130044141, now seen corresponding path program 1 times [2020-07-21 01:23:27,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:27,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756651418] [2020-07-21 01:23:27,844 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:27,945 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:27,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:27,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:23:27,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:28,052 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-21 01:23:28,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:28,169 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 164 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-21 01:23:28,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756651418] [2020-07-21 01:23:28,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:28,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:28,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357975006] [2020-07-21 01:23:28,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:28,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:28,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:28,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:28,171 INFO L87 Difference]: Start difference. First operand 2046 states and 2194 transitions. Second operand 7 states. [2020-07-21 01:23:29,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:29,229 INFO L93 Difference]: Finished difference Result 4692 states and 5055 transitions. [2020-07-21 01:23:29,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:23:29,229 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 272 [2020-07-21 01:23:29,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:29,239 INFO L225 Difference]: With dead ends: 4692 [2020-07-21 01:23:29,239 INFO L226 Difference]: Without dead ends: 2502 [2020-07-21 01:23:29,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 540 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 01:23:29,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states. [2020-07-21 01:23:29,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 2483. [2020-07-21 01:23:29,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2483 states. [2020-07-21 01:23:29,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 2632 transitions. [2020-07-21 01:23:29,297 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 2632 transitions. Word has length 272 [2020-07-21 01:23:29,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:29,298 INFO L479 AbstractCegarLoop]: Abstraction has 2483 states and 2632 transitions. [2020-07-21 01:23:29,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:29,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 2632 transitions. [2020-07-21 01:23:29,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-07-21 01:23:29,307 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:29,307 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:23:29,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:29,522 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:29,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:29,522 INFO L82 PathProgramCache]: Analyzing trace with hash -472548875, now seen corresponding path program 1 times [2020-07-21 01:23:29,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:29,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697572124] [2020-07-21 01:23:29,523 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:29,655 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:23:29,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:29,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-21 01:23:29,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:29,778 INFO L501 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-07-21 01:23:29,779 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:23:29,913 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 237 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:29,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:30,049 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:23:30,050 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:23:30,292 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 218 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:30,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697572124] [2020-07-21 01:23:30,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:30,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 16 [2020-07-21 01:23:30,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334823141] [2020-07-21 01:23:30,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-21 01:23:30,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:30,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-21 01:23:30,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-07-21 01:23:30,295 INFO L87 Difference]: Start difference. First operand 2483 states and 2632 transitions. Second operand 16 states. [2020-07-21 01:23:33,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:33,309 INFO L93 Difference]: Finished difference Result 4718 states and 5077 transitions. [2020-07-21 01:23:33,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-21 01:23:33,311 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 277 [2020-07-21 01:23:33,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:33,323 INFO L225 Difference]: With dead ends: 4718 [2020-07-21 01:23:33,323 INFO L226 Difference]: Without dead ends: 2542 [2020-07-21 01:23:33,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=331, Invalid=859, Unknown=0, NotChecked=0, Total=1190 [2020-07-21 01:23:33,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2020-07-21 01:23:33,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2480. [2020-07-21 01:23:33,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2480 states. [2020-07-21 01:23:33,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 2617 transitions. [2020-07-21 01:23:33,390 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 2617 transitions. Word has length 277 [2020-07-21 01:23:33,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:33,390 INFO L479 AbstractCegarLoop]: Abstraction has 2480 states and 2617 transitions. [2020-07-21 01:23:33,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-21 01:23:33,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 2617 transitions. [2020-07-21 01:23:33,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-07-21 01:23:33,401 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:33,401 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:33,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:33,616 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:33,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:33,617 INFO L82 PathProgramCache]: Analyzing trace with hash 80191465, now seen corresponding path program 1 times [2020-07-21 01:23:33,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:33,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379163285] [2020-07-21 01:23:33,618 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:33,770 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:23:33,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:33,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:33,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:33,858 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-07-21 01:23:33,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:23:33,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1379163285] [2020-07-21 01:23:33,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:23:33,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:23:33,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563658471] [2020-07-21 01:23:33,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:23:33,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:33,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:23:33,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:23:33,861 INFO L87 Difference]: Start difference. First operand 2480 states and 2617 transitions. Second operand 3 states. [2020-07-21 01:23:34,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:34,380 INFO L93 Difference]: Finished difference Result 5242 states and 5569 transitions. [2020-07-21 01:23:34,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:23:34,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 289 [2020-07-21 01:23:34,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:34,382 INFO L225 Difference]: With dead ends: 5242 [2020-07-21 01:23:34,382 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:23:34,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 287 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 01:23:34,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:23:34,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:23:34,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:23:34,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:23:34,393 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 289 [2020-07-21 01:23:34,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:34,393 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:23:34,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:23:34,394 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:23:34,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:23:34,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:34,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:23:35,231 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 151 [2020-07-21 01:23:35,481 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 162 [2020-07-21 01:23:37,842 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 193 DAG size of output: 117 [2020-07-21 01:23:38,713 WARN L193 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 63 [2020-07-21 01:23:39,574 WARN L193 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 74 [2020-07-21 01:23:39,579 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:23:39,579 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)|) (= ~a19~0 |old(~a19~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) (not (= 1 ~a21~0))) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 01:23:39,579 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:23:39,580 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,580 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,580 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,580 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,580 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,581 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 01:23:39,581 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 01:23:39,581 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 01:23:39,581 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 01:23:39,581 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 01:23:39,582 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 01:23:39,582 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 01:23:39,582 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 01:23:39,582 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 01:23:39,582 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 01:23:39,582 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:23:39,582 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:23:39,582 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 01:23:39,582 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,582 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,583 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,583 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,583 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 01:23:39,583 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,583 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 01:23:39,583 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 01:23:39,583 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 01:23:39,584 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 01:23:39,584 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 01:23:39,584 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 01:23:39,584 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 01:23:39,584 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:23:39,585 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:23:39,585 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 01:23:39,585 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 01:23:39,585 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 01:23:39,585 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:23:39,585 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:23:39,585 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 01:23:39,585 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,585 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,586 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,586 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,586 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,586 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 559) no Hoare annotation was computed. [2020-07-21 01:23:39,586 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:23:39,586 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 01:23:39,586 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:23:39,586 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 01:23:39,587 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 01:23:39,587 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 01:23:39,587 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 01:23:39,587 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 01:23:39,587 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 01:23:39,587 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 01:23:39,587 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 01:23:39,587 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,588 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,588 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,588 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,588 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,588 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 01:23:39,588 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 01:23:39,588 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 01:23:39,588 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 01:23:39,588 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 01:23:39,589 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 01:23:39,589 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 01:23:39,589 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 01:23:39,589 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 01:23:39,589 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 01:23:39,589 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 01:23:39,589 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 01:23:39,589 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 01:23:39,590 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,590 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,590 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,590 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,590 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,590 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 01:23:39,590 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 01:23:39,590 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 01:23:39,590 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 01:23:39,590 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 01:23:39,591 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 01:23:39,591 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 01:23:39,591 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 01:23:39,591 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 01:23:39,591 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 01:23:39,591 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 01:23:39,591 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 01:23:39,591 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 01:23:39,591 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:23:39,592 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 01:23:39,592 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:23:39,592 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,592 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,592 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,592 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,592 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 01:23:39,592 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,593 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:23:39,593 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,593 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:23:39,593 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:23:39,593 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:23:39,593 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,593 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,594 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 01:23:39,594 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 01:23:39,594 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 01:23:39,594 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 01:23:39,594 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 01:23:39,594 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 01:23:39,594 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 01:23:39,595 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 01:23:39,595 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 01:23:39,595 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 01:23:39,595 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 01:23:39,595 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,595 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,595 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,596 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,596 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,596 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,596 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 01:23:39,596 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 01:23:39,597 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 01:23:39,597 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 01:23:39,597 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 01:23:39,597 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 01:23:39,597 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 01:23:39,597 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 01:23:39,597 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 01:23:39,598 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 01:23:39,598 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 01:23:39,598 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,598 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,598 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,598 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,598 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,598 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,599 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 01:23:39,599 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 01:23:39,599 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 01:23:39,599 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 01:23:39,599 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 01:23:39,599 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 01:23:39,599 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 01:23:39,599 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 01:23:39,600 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 01:23:39,600 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 01:23:39,600 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 01:23:39,600 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 01:23:39,600 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 01:23:39,600 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 01:23:39,601 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,601 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,601 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,602 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse17 (= 1 |old(~a25~0)|)) (.cse28 (= 1 ~a25~0)) (.cse26 (<= ~a11~0 0)) (.cse27 (< 0 |old(~a11~0)|)) (.cse10 (<= 8 ~a17~0)) (.cse23 (= ~a28~0 |old(~a28~0)|)) (.cse22 (<= ~a11~0 |old(~a11~0)|)) (.cse7 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (= ~a19~0 |old(~a19~0)|)) (.cse12 (<= |old(~a28~0)| ~a28~0)) (.cse13 (= ~a25~0 |old(~a25~0)|))) (let ((.cse8 (<= ~a28~0 |old(~a28~0)|)) (.cse14 (not (< |old(~a28~0)| 11))) (.cse18 (and .cse22 .cse7 .cse11 .cse12 .cse13)) (.cse15 (not (<= |old(~a19~0)| 0))) (.cse3 (and .cse7 .cse10 .cse11 .cse23 .cse13)) (.cse6 (not (<= 10 |old(~a28~0)|))) (.cse19 (not (<= |old(~a17~0)| 7))) (.cse9 (or .cse26 .cse27)) (.cse24 (and .cse7 .cse10 .cse11 .cse23 .cse28)) (.cse2 (not (<= 8 |old(~a17~0)|))) (.cse20 (not (= 8 |old(~a17~0)|))) (.cse21 (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|)))) (.cse4 (not (< 8 |old(~a28~0)|))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse1 (not (<= |old(~a28~0)| 9))) (.cse25 (not .cse17)) (.cse5 (not (= 1 ~a21~0))) (.cse16 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse2 .cse6 (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13) .cse5 .cse14) (or .cse2 .cse15 .cse3 .cse5 .cse16) (or (and .cse17 (not (< 9 |old(~a28~0)|))) .cse18 .cse19 .cse4 .cse5 .cse16) (or .cse1 (and .cse7 .cse8 .cse9 .cse11 .cse12 .cse13) .cse15 .cse19 .cse5) (or .cse0 .cse20 (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) .cse21 .cse5 (and .cse22 .cse11 .cse23 (= 8 ~a17~0) .cse13) .cse16) (or .cse24 .cse2 .cse25 .cse15 .cse5 .cse14) (or .cse22 .cse2 .cse15 .cse5 .cse16) (or .cse0 .cse26 .cse25 .cse27 .cse5) (or .cse0 .cse20 (= 1 ~a11~0) .cse25 .cse5 (not (= 9 |old(~a28~0)|)) (not (= 1 |old(~a11~0)|))) (or .cse0 .cse19 .cse18 .cse5 .cse16) (or .cse1 .cse2 .cse15 .cse3 .cse5) (or (and .cse7 .cse11 .cse12 .cse13) .cse19 .cse6 .cse5) (or (not (<= |old(~a28~0)| 7)) .cse25 .cse19 (and .cse7 .cse9 .cse11 .cse23 .cse28) .cse5) (or .cse0 .cse24 .cse2 .cse25 .cse5) (or .cse0 .cse22 (not (= 10 |old(~a28~0)|)) .cse20 .cse21 .cse5 .cse16) (or .cse0 .cse22 .cse1 .cse4 .cse5 .cse16) (or .cse0 .cse22 .cse1 .cse25 .cse5 .cse16)))) [2020-07-21 01:23:39,602 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,602 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,602 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,602 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 01:23:39,603 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 01:23:39,603 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 01:23:39,603 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 01:23:39,603 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 01:23:39,603 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 01:23:39,603 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 01:23:39,604 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 01:23:39,604 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 01:23:39,604 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 01:23:39,604 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 01:23:39,604 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 01:23:39,604 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 01:23:39,604 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,605 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,605 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,605 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,605 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,605 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,605 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 01:23:39,605 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 01:23:39,605 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 01:23:39,606 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 01:23:39,606 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 01:23:39,606 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 01:23:39,606 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 01:23:39,606 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 01:23:39,606 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 01:23:39,606 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 01:23:39,606 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 01:23:39,606 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:23:39,606 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:23:39,606 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 01:23:39,606 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 01:23:39,607 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 01:23:39,607 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,607 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,607 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,607 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,607 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:39,607 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 01:23:39,607 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 01:23:39,608 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 01:23:39,608 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 01:23:39,608 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 01:23:39,608 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 01:23:39,608 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 01:23:39,608 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 01:23:39,609 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 01:23:39,609 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 01:23:39,609 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 01:23:39,609 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:23:39,609 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 01:23:39,609 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:23:39,609 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 01:23:39,609 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:23:39,609 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:23:39,609 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 01:23:39,609 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 01:23:39,609 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:23:39,610 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 01:23:39,610 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:23:39,610 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:23:39,610 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (and (<= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= 8 ~a17~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a11~0)| 0))) [2020-07-21 01:23:39,610 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse5 (= 1 ~a25~0))) (let ((.cse8 (<= ~a17~0 7)) (.cse9 (<= 10 ~a28~0)) (.cse3 (< ~a28~0 11)) (.cse6 (or (< 9 ~a28~0) (not .cse5))) (.cse7 (< 8 ~a28~0)) (.cse1 (<= ~a11~0 0)) (.cse4 (<= ~a19~0 0)) (.cse0 (= 1 ~a19~0)) (.cse2 (<= ~a17~0 |old(~a17~0)|)) (.cse10 (<= 8 ~a17~0)) (.cse11 (<= ~a28~0 9))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= ~a25~0 0) (= 7 ~a28~0) (= 8 ~a17~0)) (and .cse2 .cse3 .cse4 .cse5) (not (= 7 |old(~a28~0)|)) (and .cse6 .cse7 .cse1 .cse8) (and .cse0 .cse1 .cse8) (and .cse8 .cse9) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse2 .cse10 .cse5) (not (= 8 |old(~a17~0)|)) (and .cse8 (<= ~a28~0 7) .cse5) (and .cse0 .cse2 .cse9 .cse3) (and .cse2 .cse11 .cse4) (not (<= |old(~a25~0)| 0)) (and .cse2 .cse6 .cse7 .cse1 .cse4) (and .cse0 .cse2 .cse10 .cse11 (<= 9 ~a28~0))))) [2020-07-21 01:23:39,610 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:23:39,610 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:23:39,611 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse3 (= 1 ~a25~0))) (let ((.cse7 (<= ~a17~0 7)) (.cse9 (<= 10 ~a28~0)) (.cse1 (< ~a28~0 11)) (.cse4 (or (< 9 ~a28~0) (not .cse3))) (.cse5 (< 8 ~a28~0)) (.cse6 (<= ~a11~0 0)) (.cse2 (<= ~a19~0 0)) (.cse8 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse10 (<= 8 ~a17~0)) (.cse11 (<= ~a28~0 9))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (not (= 7 |old(~a28~0)|)) (and .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse6 .cse7) (and .cse7 .cse9) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse8 .cse0 .cse10 .cse3) (and .cse8 .cse6 (<= ~a25~0 0) (= 7 ~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))) (not (= 8 |old(~a17~0)|)) (and .cse7 (<= ~a28~0 7) .cse3) (and .cse8 .cse0 .cse9 .cse1) (and .cse0 .cse11 .cse2) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse4 .cse5 .cse6 .cse2) (and .cse8 .cse0 .cse10 .cse11 (<= 9 ~a28~0))))) [2020-07-21 01:23:39,611 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 01:23:39,611 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 01:23:39,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:23:39 BoogieIcfgContainer [2020-07-21 01:23:39,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:23:39,645 INFO L168 Benchmark]: Toolchain (without parser) took 35236.78 ms. Allocated memory was 144.2 MB in the beginning and 618.1 MB in the end (delta: 474.0 MB). Free memory was 100.1 MB in the beginning and 92.2 MB in the end (delta: 7.9 MB). Peak memory consumption was 485.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:39,646 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 01:23:39,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.53 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 99.7 MB in the beginning and 167.5 MB in the end (delta: -67.9 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:39,648 INFO L168 Benchmark]: Boogie Preprocessor took 110.24 ms. Allocated memory is still 201.3 MB. Free memory was 167.5 MB in the beginning and 162.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:39,651 INFO L168 Benchmark]: RCFGBuilder took 1306.13 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 162.6 MB in the beginning and 178.8 MB in the end (delta: -16.2 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:39,652 INFO L168 Benchmark]: TraceAbstraction took 33062.59 ms. Allocated memory was 232.8 MB in the beginning and 618.1 MB in the end (delta: 385.4 MB). Free memory was 177.3 MB in the beginning and 92.2 MB in the end (delta: 85.1 MB). Peak memory consumption was 474.5 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:39,662 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 749.53 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 99.7 MB in the beginning and 167.5 MB in the end (delta: -67.9 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.24 ms. Allocated memory is still 201.3 MB. Free memory was 167.5 MB in the beginning and 162.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1306.13 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 162.6 MB in the beginning and 178.8 MB in the end (delta: -16.2 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 33062.59 ms. Allocated memory was 232.8 MB in the beginning and 618.1 MB in the end (delta: 385.4 MB). Free memory was 177.3 MB in the beginning and 92.2 MB in the end (delta: 85.1 MB). Peak memory consumption was 474.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 559]: 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)) || ((((1 == a19 && a11 <= 0) && a25 <= 0) && 7 == a28) && 8 == a17)) || (((a17 <= \old(a17) && a28 < 11) && a19 <= 0) && 1 == a25)) || !(7 == \old(a28))) || ((((9 < a28 || !(1 == a25)) && 8 < a28) && a11 <= 0) && a17 <= 7)) || ((1 == a19 && a11 <= 0) && a17 <= 7)) || (a17 <= 7 && 10 <= a28)) || !(1 == a21)) || !(\old(a11) <= 0)) || (((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && 1 == a25)) || !(8 == \old(a17))) || ((a17 <= 7 && a28 <= 7) && 1 == a25)) || (((1 == a19 && a17 <= \old(a17)) && 10 <= a28) && a28 < 11)) || ((a17 <= \old(a17) && a28 <= 9) && a19 <= 0)) || !(\old(a25) <= 0)) || ((((a17 <= \old(a17) && (9 < a28 || !(1 == a25))) && 8 < a28) && a11 <= 0) && a19 <= 0)) || ((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 9) && 9 <= a28) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 27.9s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 18.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1166 SDtfs, 8342 SDslu, 1067 SDs, 0 SdLazy, 12904 SolverSat, 1963 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4642 GetRequests, 4484 SyntacticMatches, 10 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2483occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 755 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 172 PreInvPairs, 244 NumberOfFragments, 1068 HoareAnnotationTreeSize, 172 FomulaSimplifications, 31466 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 16823 FormulaSimplificationTreeSizeReductionInter, 4.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 2702 NumberOfCodeBlocks, 1734 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 4540 ConstructedInterpolants, 0 QuantifiedInterpolants, 3580917 SizeOfPredicates, 56 NumberOfNonLiveVariables, 5007 ConjunctsInSsa, 195 ConjunctsInUnsatCore, 22 InterpolantComputations, 4 PerfectInterpolantSequences, 2323/2468 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...